definição e significado de Eukaryotic_initiation_factor | sensagent.com


   Publicitade R▼


 » 
alemão búlgaro chinês croata dinamarquês eslovaco esloveno espanhol estoniano farsi finlandês francês grego hebraico hindi holandês húngaro indonésio inglês islandês italiano japonês korean letão língua árabe lituano malgaxe norueguês polonês português romeno russo sérvio sueco tailandês tcheco turco vietnamês
alemão búlgaro chinês croata dinamarquês eslovaco esloveno espanhol estoniano farsi finlandês francês grego hebraico hindi holandês húngaro indonésio inglês islandês italiano japonês korean letão língua árabe lituano malgaxe norueguês polonês português romeno russo sérvio sueco tailandês tcheco turco vietnamês

Definição e significado de Eukaryotic_initiation_factor

Definição

Eukaryotic Initiation Factor-3, Subunit 1 (n.)

1.(MeSH)A multisubunit eukaryotic initiation factor that contains at least 8 distinct polypeptides. It plays a role in recycling of ribosomal subunits to the site of transcription initiation by promoting the dissociation of non-translating ribosomal subunits. It also is involved in promoting the binding of a ternary complex of EUKARYOTIC INITIATION FACTOR-2; GTP; and INITIATOR TRNA to the 40S ribosomal subunit.

Eukaryotic Initiation Factor-3, Subunit 2 (n.)

1.(MeSH)A multisubunit eukaryotic initiation factor that contains at least 8 distinct polypeptides. It plays a role in recycling of ribosomal subunits to the site of transcription initiation by promoting the dissociation of non-translating ribosomal subunits. It also is involved in promoting the binding of a ternary complex of EUKARYOTIC INITIATION FACTOR-2; GTP; and INITIATOR TRNA to the 40S ribosomal subunit.

Eukaryotic Initiation Factor-3, beta Subunit (n.)

1.(MeSH)A multisubunit eukaryotic initiation factor that contains at least 8 distinct polypeptides. It plays a role in recycling of ribosomal subunits to the site of transcription initiation by promoting the dissociation of non-translating ribosomal subunits. It also is involved in promoting the binding of a ternary complex of EUKARYOTIC INITIATION FACTOR-2; GTP; and INITIATOR TRNA to the 40S ribosomal subunit.

Eukaryotic Initiation Factor-3, Subunit 3 (n.)

1.(MeSH)A multisubunit eukaryotic initiation factor that contains at least 8 distinct polypeptides. It plays a role in recycling of ribosomal subunits to the site of transcription initiation by promoting the dissociation of non-translating ribosomal subunits. It also is involved in promoting the binding of a ternary complex of EUKARYOTIC INITIATION FACTOR-2; GTP; and INITIATOR TRNA to the 40S ribosomal subunit.

Eukaryotic Initiation Factor-3, gamma Subunit (n.)

1.(MeSH)A multisubunit eukaryotic initiation factor that contains at least 8 distinct polypeptides. It plays a role in recycling of ribosomal subunits to the site of transcription initiation by promoting the dissociation of non-translating ribosomal subunits. It also is involved in promoting the binding of a ternary complex of EUKARYOTIC INITIATION FACTOR-2; GTP; and INITIATOR TRNA to the 40S ribosomal subunit.

Eukaryotic Initiation Factor-3, Subunit 4 (n.)

1.(MeSH)A multisubunit eukaryotic initiation factor that contains at least 8 distinct polypeptides. It plays a role in recycling of ribosomal subunits to the site of transcription initiation by promoting the dissociation of non-translating ribosomal subunits. It also is involved in promoting the binding of a ternary complex of EUKARYOTIC INITIATION FACTOR-2; GTP; and INITIATOR TRNA to the 40S ribosomal subunit.

Eukaryotic Initiation Factor-3, Subunit 5 (n.)

1.(MeSH)A multisubunit eukaryotic initiation factor that contains at least 8 distinct polypeptides. It plays a role in recycling of ribosomal subunits to the site of transcription initiation by promoting the dissociation of non-translating ribosomal subunits. It also is involved in promoting the binding of a ternary complex of EUKARYOTIC INITIATION FACTOR-2; GTP; and INITIATOR TRNA to the 40S ribosomal subunit.

Eukaryotic Initiation Factor-3, delta Subunit (n.)

1.(MeSH)A multisubunit eukaryotic initiation factor that contains at least 8 distinct polypeptides. It plays a role in recycling of ribosomal subunits to the site of transcription initiation by promoting the dissociation of non-translating ribosomal subunits. It also is involved in promoting the binding of a ternary complex of EUKARYOTIC INITIATION FACTOR-2; GTP; and INITIATOR TRNA to the 40S ribosomal subunit.

Eukaryotic Initiation Factor-3, Subunit 6 (n.)

1.(MeSH)A multisubunit eukaryotic initiation factor that contains at least 8 distinct polypeptides. It plays a role in recycling of ribosomal subunits to the site of transcription initiation by promoting the dissociation of non-translating ribosomal subunits. It also is involved in promoting the binding of a ternary complex of EUKARYOTIC INITIATION FACTOR-2; GTP; and INITIATOR TRNA to the 40S ribosomal subunit.

Eukaryotic Initiation Factor-3, Subunit 7 (n.)

1.(MeSH)A multisubunit eukaryotic initiation factor that contains at least 8 distinct polypeptides. It plays a role in recycling of ribosomal subunits to the site of transcription initiation by promoting the dissociation of non-translating ribosomal subunits. It also is involved in promoting the binding of a ternary complex of EUKARYOTIC INITIATION FACTOR-2; GTP; and INITIATOR TRNA to the 40S ribosomal subunit.

Eukaryotic Initiation Factor-3, zeta Subunit (n.)

1.(MeSH)A multisubunit eukaryotic initiation factor that contains at least 8 distinct polypeptides. It plays a role in recycling of ribosomal subunits to the site of transcription initiation by promoting the dissociation of non-translating ribosomal subunits. It also is involved in promoting the binding of a ternary complex of EUKARYOTIC INITIATION FACTOR-2; GTP; and INITIATOR TRNA to the 40S ribosomal subunit.

Eukaryotic Initiation Factor-3, Subunit 8 (n.)

1.(MeSH)A multisubunit eukaryotic initiation factor that contains at least 8 distinct polypeptides. It plays a role in recycling of ribosomal subunits to the site of transcription initiation by promoting the dissociation of non-translating ribosomal subunits. It also is involved in promoting the binding of a ternary complex of EUKARYOTIC INITIATION FACTOR-2; GTP; and INITIATOR TRNA to the 40S ribosomal subunit.

Eukaryotic Initiation Factor-3 p110 (n.)

1.(MeSH)A multisubunit eukaryotic initiation factor that contains at least 8 distinct polypeptides. It plays a role in recycling of ribosomal subunits to the site of transcription initiation by promoting the dissociation of non-translating ribosomal subunits. It also is involved in promoting the binding of a ternary complex of EUKARYOTIC INITIATION FACTOR-2; GTP; and INITIATOR TRNA to the 40S ribosomal subunit.

Eukaryotic Initiation Factor-4G (n.)

1.(MeSH)A component of eukaryotic initiation factor-4F that is involved in multiple protein interactions at the site of translation initiation. Thus it may serve a role in bringing together various initiation factors at the site of translation initiation.

Eukaryotic Initiation Factor-4A (n.)

1.(MeSH)A component of eukaryotic initiation factor 4F that as an RNA helicase involved in unwinding the secondary structure of the 5' UNTRANSLATED REGION of MRNA. The unwinding facilitates the binding of the 40S ribosomal subunit.

Eukaryotic Initiation Factor EIF-4A (n.)

1.(MeSH)A component of eukaryotic initiation factor 4F that as an RNA helicase involved in unwinding the secondary structure of the 5' UNTRANSLATED REGION of MRNA. The unwinding facilitates the binding of the 40S ribosomal subunit.

Eukaryotic Initiation Factor-4A1 (n.)

1.(MeSH)A component of eukaryotic initiation factor 4F that as an RNA helicase involved in unwinding the secondary structure of the 5' UNTRANSLATED REGION of MRNA. The unwinding facilitates the binding of the 40S ribosomal subunit.

Eukaryotic Initiation Factor-4A2 (n.)

1.(MeSH)A component of eukaryotic initiation factor 4F that as an RNA helicase involved in unwinding the secondary structure of the 5' UNTRANSLATED REGION of MRNA. The unwinding facilitates the binding of the 40S ribosomal subunit.

Eukaryotic Initiation Factor-4A3 (n.)

1.(MeSH)A component of eukaryotic initiation factor 4F that as an RNA helicase involved in unwinding the secondary structure of the 5' UNTRANSLATED REGION of MRNA. The unwinding facilitates the binding of the 40S ribosomal subunit.

Eukaryotic Initiation Factor-4F (n.)

1.(MeSH)A trimeric peptide initiation factor complex that associates with the 5' MRNA cap structure of RNA (RNA CAPS) and plays an essential role in MRNA TRANSLATION. It is composed of EUKARYOTIC INITIATION FACTOR-4A; EUKARYOTIC INITIATION FACTOR-4E; and EUKARYOTIC INITIATION FACTOR-4G.;An isoform of eukaryotic initiation factor-4F found in plants.

Eukaryotic Initiation Factor-(iso)4F (n.)

1.(MeSH)A trimeric peptide initiation factor complex that associates with the 5' MRNA cap structure of RNA (RNA CAPS) and plays an essential role in MRNA TRANSLATION. It is composed of EUKARYOTIC INITIATION FACTOR-4A; EUKARYOTIC INITIATION FACTOR-4E; and EUKARYOTIC INITIATION FACTOR-4G.;An isoform of eukaryotic initiation factor-4F found in plants.

Eukaryotic Initiation Factor-4E (n.)

1.(MeSH)A peptide initiation factor that binds specifically to the 5' MRNA CAP STRUCTURE of MRNA in the CYTOPLASM. It is a component of the trimeric complex EIF4F.

Eukaryotic Initiation Factor-2B (n.)

1.(MeSH)A guanine nucleotide exchange factor that acts to restore EUKARYOTIC INITIATION FACTOR-2 to its GTP bound form.

Eukaryotic Initiation Factor-2B, epsilon Subunit (n.)

1.(MeSH)A guanine nucleotide exchange factor that acts to restore EUKARYOTIC INITIATION FACTOR-2 to its GTP bound form.

Eukaryotic Initiation Factor-2B, alpha Subunit (n.)

1.(MeSH)A guanine nucleotide exchange factor that acts to restore EUKARYOTIC INITIATION FACTOR-2 to its GTP bound form.

Eukaryotic Initiation Factor-2B, delta Subunit (n.)

1.(MeSH)A guanine nucleotide exchange factor that acts to restore EUKARYOTIC INITIATION FACTOR-2 to its GTP bound form.

Eukaryotic Initiation Factor-2B, beta Subunit (n.)

1.(MeSH)A guanine nucleotide exchange factor that acts to restore EUKARYOTIC INITIATION FACTOR-2 to its GTP bound form.

Eukaryotic Initiation Factor-2B, gamma Subunit (n.)

1.(MeSH)A guanine nucleotide exchange factor that acts to restore EUKARYOTIC INITIATION FACTOR-2 to its GTP bound form.

Eukaryotic Initiation Factor 2alpha Kinase (n.)

1.(MeSH)A dsRNA-activated cAMP-independent protein serine/threonine kinase that is induced by interferon. In the presence of dsRNA and ATP, the kinase autophosphorylates on several serine and threonine residues. The phosphorylated enzyme catalyzes the phosphorylation of the alpha subunit of EUKARYOTIC INITIATION FACTOR-2, leading to the inhibition of protein synthesis.

Eukaryotic Initiation Factor-2, alpha Subunit (n.)

1.(MeSH)Eukaryotic initiation factor of protein synthesis. In higher eukaryotes the factor consists of three subunits: alpha, beta, and gamma. As initiation proceeds, eIF-2 forms a ternary complex with Met-tRNAi and GTP.

Eukaryotic Initiation Factor-2, beta Subunit (n.)

1.(MeSH)Eukaryotic initiation factor of protein synthesis. In higher eukaryotes the factor consists of three subunits: alpha, beta, and gamma. As initiation proceeds, eIF-2 forms a ternary complex with Met-tRNAi and GTP.

Eukaryotic Initiation Factor-2, gamma Subunit (n.)

1.(MeSH)Eukaryotic initiation factor of protein synthesis. In higher eukaryotes the factor consists of three subunits: alpha, beta, and gamma. As initiation proceeds, eIF-2 forms a ternary complex with Met-tRNAi and GTP.

   Publicidade ▼

Definiciones (más)

definição - Wikipedia

Sinónimos

Eukaryotic Initiation Factor-3 p110 (n.) (MeSH)

D12.776.835.725.868.437, EIF3  (MeSH), EIF-3  (MeSH), EIF3-alpha  (MeSH), EIF3-beta  (MeSH), EIF3-epsilon  (MeSH), EIF3-gamma  (MeSH), EIF3 p110  (MeSH), EIF3 p42 Protein  (MeSH), EIF3-p48  (MeSH), EIF3S3 Gene Product  (MeSH), EIF3S3 Protein  (MeSH), EIF3S4 Protein  (MeSH), EIF3-zeta  (MeSH), Eukaryotic Initiation Factor-3  (MeSH), Eukaryotic Initiation Factor-3, beta Subunit  (MeSH), Eukaryotic Initiation Factor-3, delta Subunit  (MeSH), Eukaryotic Initiation Factor-3, gamma Subunit  (MeSH), Eukaryotic Initiation Factor-3, Subunit 1  (MeSH), Eukaryotic Initiation Factor-3, Subunit 2  (MeSH), Eukaryotic Initiation Factor-3, Subunit 3  (MeSH), Eukaryotic Initiation Factor-3, Subunit 4  (MeSH), Eukaryotic Initiation Factor-3, Subunit 5  (MeSH), Eukaryotic Initiation Factor-3, Subunit 6  (MeSH), Eukaryotic Initiation Factor-3, Subunit 7  (MeSH), Eukaryotic Initiation Factor-3, Subunit 8  (MeSH), Eukaryotic Initiation Factor-3, zeta Subunit  (MeSH), Eukaryotic Peptide Initiation Factor-3  (MeSH), Eukaryotic Peptide Initiation Factor-3, alpha Subunit  (MeSH), Eukaryotic Peptide Initiation Factor-3, Subunit 1  (MeSH), Eukaryotic Peptide Initiation Factor-3, Subunit 2  (MeSH), Eukaryotic Peptide Initiation Factor-3, Subunit 3  (MeSH), Eukaryotic Peptide Initiation Factor-3, Subunit 4  (MeSH), Eukaryotic Peptide Initiation Factor 3, Subunit 5  (MeSH), Eukaryotic Translation Initiation Factor-3, Subunit 8  (MeSH), Int-6 Gene Product  (MeSH), INT6 Protein  (MeSH), Int-6 Protein  (MeSH), p42 EIF3 Protein  (MeSH), Peptide Initiation Factor EIF-3  (MeSH)

Eukaryotic Initiation Factor-3, Subunit 1 (n.) (MeSH)

D12.776.835.725.868.437, EIF3  (MeSH), EIF-3  (MeSH), EIF3-alpha  (MeSH), EIF3-beta  (MeSH), EIF3-epsilon  (MeSH), EIF3-gamma  (MeSH), EIF3 p110  (MeSH), EIF3 p42 Protein  (MeSH), EIF3-p48  (MeSH), EIF3S3 Gene Product  (MeSH), EIF3S3 Protein  (MeSH), EIF3S4 Protein  (MeSH), EIF3-zeta  (MeSH), Eukaryotic Initiation Factor-3  (MeSH), Eukaryotic Initiation Factor-3, beta Subunit  (MeSH), Eukaryotic Initiation Factor-3, delta Subunit  (MeSH), Eukaryotic Initiation Factor-3, gamma Subunit  (MeSH), Eukaryotic Initiation Factor-3, Subunit 2  (MeSH), Eukaryotic Initiation Factor-3, Subunit 3  (MeSH), Eukaryotic Initiation Factor-3, Subunit 4  (MeSH), Eukaryotic Initiation Factor-3, Subunit 5  (MeSH), Eukaryotic Initiation Factor-3, Subunit 6  (MeSH), Eukaryotic Initiation Factor-3, Subunit 7  (MeSH), Eukaryotic Initiation Factor-3, Subunit 8  (MeSH), Eukaryotic Initiation Factor-3, zeta Subunit  (MeSH), Eukaryotic Initiation Factor-3 p110  (MeSH), Eukaryotic Peptide Initiation Factor-3  (MeSH), Eukaryotic Peptide Initiation Factor-3, alpha Subunit  (MeSH), Eukaryotic Peptide Initiation Factor-3, Subunit 1  (MeSH), Eukaryotic Peptide Initiation Factor-3, Subunit 2  (MeSH), Eukaryotic Peptide Initiation Factor-3, Subunit 3  (MeSH), Eukaryotic Peptide Initiation Factor-3, Subunit 4  (MeSH), Eukaryotic Peptide Initiation Factor 3, Subunit 5  (MeSH), Eukaryotic Translation Initiation Factor-3, Subunit 8  (MeSH), Int-6 Gene Product  (MeSH), INT6 Protein  (MeSH), Int-6 Protein  (MeSH), p42 EIF3 Protein  (MeSH), Peptide Initiation Factor EIF-3  (MeSH)

Eukaryotic Initiation Factor-3, Subunit 2 (n.) (MeSH)

D12.776.835.725.868.437, EIF3  (MeSH), EIF-3  (MeSH), EIF3-alpha  (MeSH), EIF3-beta  (MeSH), EIF3-epsilon  (MeSH), EIF3-gamma  (MeSH), EIF3 p110  (MeSH), EIF3 p42 Protein  (MeSH), EIF3-p48  (MeSH), EIF3S3 Gene Product  (MeSH), EIF3S3 Protein  (MeSH), EIF3S4 Protein  (MeSH), EIF3-zeta  (MeSH), Eukaryotic Initiation Factor-3  (MeSH), Eukaryotic Initiation Factor-3, beta Subunit  (MeSH), Eukaryotic Initiation Factor-3, delta Subunit  (MeSH), Eukaryotic Initiation Factor-3, gamma Subunit  (MeSH), Eukaryotic Initiation Factor-3, Subunit 1  (MeSH), Eukaryotic Initiation Factor-3, Subunit 3  (MeSH), Eukaryotic Initiation Factor-3, Subunit 4  (MeSH), Eukaryotic Initiation Factor-3, Subunit 5  (MeSH), Eukaryotic Initiation Factor-3, Subunit 6  (MeSH), Eukaryotic Initiation Factor-3, Subunit 7  (MeSH), Eukaryotic Initiation Factor-3, Subunit 8  (MeSH), Eukaryotic Initiation Factor-3, zeta Subunit  (MeSH), Eukaryotic Initiation Factor-3 p110  (MeSH), Eukaryotic Peptide Initiation Factor-3  (MeSH), Eukaryotic Peptide Initiation Factor-3, alpha Subunit  (MeSH), Eukaryotic Peptide Initiation Factor-3, Subunit 1  (MeSH), Eukaryotic Peptide Initiation Factor-3, Subunit 2  (MeSH), Eukaryotic Peptide Initiation Factor-3, Subunit 3  (MeSH), Eukaryotic Peptide Initiation Factor-3, Subunit 4  (MeSH), Eukaryotic Peptide Initiation Factor 3, Subunit 5  (MeSH), Eukaryotic Translation Initiation Factor-3, Subunit 8  (MeSH), Int-6 Gene Product  (MeSH), INT6 Protein  (MeSH), Int-6 Protein  (MeSH), p42 EIF3 Protein  (MeSH), Peptide Initiation Factor EIF-3  (MeSH)

Eukaryotic Initiation Factor-3, Subunit 3 (n.) (MeSH)

D12.776.835.725.868.437, EIF3  (MeSH), EIF-3  (MeSH), EIF3-alpha  (MeSH), EIF3-beta  (MeSH), EIF3-epsilon  (MeSH), EIF3-gamma  (MeSH), EIF3 p110  (MeSH), EIF3 p42 Protein  (MeSH), EIF3-p48  (MeSH), EIF3S3 Gene Product  (MeSH), EIF3S3 Protein  (MeSH), EIF3S4 Protein  (MeSH), EIF3-zeta  (MeSH), Eukaryotic Initiation Factor-3  (MeSH), Eukaryotic Initiation Factor-3, beta Subunit  (MeSH), Eukaryotic Initiation Factor-3, delta Subunit  (MeSH), Eukaryotic Initiation Factor-3, gamma Subunit  (MeSH), Eukaryotic Initiation Factor-3, Subunit 1  (MeSH), Eukaryotic Initiation Factor-3, Subunit 2  (MeSH), Eukaryotic Initiation Factor-3, Subunit 4  (MeSH), Eukaryotic Initiation Factor-3, Subunit 5  (MeSH), Eukaryotic Initiation Factor-3, Subunit 6  (MeSH), Eukaryotic Initiation Factor-3, Subunit 7  (MeSH), Eukaryotic Initiation Factor-3, Subunit 8  (MeSH), Eukaryotic Initiation Factor-3, zeta Subunit  (MeSH), Eukaryotic Initiation Factor-3 p110  (MeSH), Eukaryotic Peptide Initiation Factor-3  (MeSH), Eukaryotic Peptide Initiation Factor-3, alpha Subunit  (MeSH), Eukaryotic Peptide Initiation Factor-3, Subunit 1  (MeSH), Eukaryotic Peptide Initiation Factor-3, Subunit 2  (MeSH), Eukaryotic Peptide Initiation Factor-3, Subunit 3  (MeSH), Eukaryotic Peptide Initiation Factor-3, Subunit 4  (MeSH), Eukaryotic Peptide Initiation Factor 3, Subunit 5  (MeSH), Eukaryotic Translation Initiation Factor-3, Subunit 8  (MeSH), Int-6 Gene Product  (MeSH), INT6 Protein  (MeSH), Int-6 Protein  (MeSH), p42 EIF3 Protein  (MeSH), Peptide Initiation Factor EIF-3  (MeSH)

Eukaryotic Initiation Factor-3, Subunit 4 (n.) (MeSH)

D12.776.835.725.868.437, EIF3  (MeSH), EIF-3  (MeSH), EIF3-alpha  (MeSH), EIF3-beta  (MeSH), EIF3-epsilon  (MeSH), EIF3-gamma  (MeSH), EIF3 p110  (MeSH), EIF3 p42 Protein  (MeSH), EIF3-p48  (MeSH), EIF3S3 Gene Product  (MeSH), EIF3S3 Protein  (MeSH), EIF3S4 Protein  (MeSH), EIF3-zeta  (MeSH), Eukaryotic Initiation Factor-3  (MeSH), Eukaryotic Initiation Factor-3, beta Subunit  (MeSH), Eukaryotic Initiation Factor-3, delta Subunit  (MeSH), Eukaryotic Initiation Factor-3, gamma Subunit  (MeSH), Eukaryotic Initiation Factor-3, Subunit 1  (MeSH), Eukaryotic Initiation Factor-3, Subunit 2  (MeSH), Eukaryotic Initiation Factor-3, Subunit 3  (MeSH), Eukaryotic Initiation Factor-3, Subunit 5  (MeSH), Eukaryotic Initiation Factor-3, Subunit 6  (MeSH), Eukaryotic Initiation Factor-3, Subunit 7  (MeSH), Eukaryotic Initiation Factor-3, Subunit 8  (MeSH), Eukaryotic Initiation Factor-3, zeta Subunit  (MeSH), Eukaryotic Initiation Factor-3 p110  (MeSH), Eukaryotic Peptide Initiation Factor-3  (MeSH), Eukaryotic Peptide Initiation Factor-3, alpha Subunit  (MeSH), Eukaryotic Peptide Initiation Factor-3, Subunit 1  (MeSH), Eukaryotic Peptide Initiation Factor-3, Subunit 2  (MeSH), Eukaryotic Peptide Initiation Factor-3, Subunit 3  (MeSH), Eukaryotic Peptide Initiation Factor-3, Subunit 4  (MeSH), Eukaryotic Peptide Initiation Factor 3, Subunit 5  (MeSH), Eukaryotic Translation Initiation Factor-3, Subunit 8  (MeSH), Int-6 Gene Product  (MeSH), INT6 Protein  (MeSH), Int-6 Protein  (MeSH), p42 EIF3 Protein  (MeSH), Peptide Initiation Factor EIF-3  (MeSH)

Eukaryotic Initiation Factor-3, Subunit 5 (n.) (MeSH)

D12.776.835.725.868.437, EIF3  (MeSH), EIF-3  (MeSH), EIF3-alpha  (MeSH), EIF3-beta  (MeSH), EIF3-epsilon  (MeSH), EIF3-gamma  (MeSH), EIF3 p110  (MeSH), EIF3 p42 Protein  (MeSH), EIF3-p48  (MeSH), EIF3S3 Gene Product  (MeSH), EIF3S3 Protein  (MeSH), EIF3S4 Protein  (MeSH), EIF3-zeta  (MeSH), Eukaryotic Initiation Factor-3  (MeSH), Eukaryotic Initiation Factor-3, beta Subunit  (MeSH), Eukaryotic Initiation Factor-3, delta Subunit  (MeSH), Eukaryotic Initiation Factor-3, gamma Subunit  (MeSH), Eukaryotic Initiation Factor-3, Subunit 1  (MeSH), Eukaryotic Initiation Factor-3, Subunit 2  (MeSH), Eukaryotic Initiation Factor-3, Subunit 3  (MeSH), Eukaryotic Initiation Factor-3, Subunit 4  (MeSH), Eukaryotic Initiation Factor-3, Subunit 6  (MeSH), Eukaryotic Initiation Factor-3, Subunit 7  (MeSH), Eukaryotic Initiation Factor-3, Subunit 8  (MeSH), Eukaryotic Initiation Factor-3, zeta Subunit  (MeSH), Eukaryotic Initiation Factor-3 p110  (MeSH), Eukaryotic Peptide Initiation Factor-3  (MeSH), Eukaryotic Peptide Initiation Factor-3, alpha Subunit  (MeSH), Eukaryotic Peptide Initiation Factor-3, Subunit 1  (MeSH), Eukaryotic Peptide Initiation Factor-3, Subunit 2  (MeSH), Eukaryotic Peptide Initiation Factor-3, Subunit 3  (MeSH), Eukaryotic Peptide Initiation Factor-3, Subunit 4  (MeSH), Eukaryotic Peptide Initiation Factor 3, Subunit 5  (MeSH), Eukaryotic Translation Initiation Factor-3, Subunit 8  (MeSH), Int-6 Gene Product  (MeSH), INT6 Protein  (MeSH), Int-6 Protein  (MeSH), p42 EIF3 Protein  (MeSH), Peptide Initiation Factor EIF-3  (MeSH)

Eukaryotic Initiation Factor-3, Subunit 6 (n.) (MeSH)

D12.776.835.725.868.437, EIF3  (MeSH), EIF-3  (MeSH), EIF3-alpha  (MeSH), EIF3-beta  (MeSH), EIF3-epsilon  (MeSH), EIF3-gamma  (MeSH), EIF3 p110  (MeSH), EIF3 p42 Protein  (MeSH), EIF3-p48  (MeSH), EIF3S3 Gene Product  (MeSH), EIF3S3 Protein  (MeSH), EIF3S4 Protein  (MeSH), EIF3-zeta  (MeSH), Eukaryotic Initiation Factor-3  (MeSH), Eukaryotic Initiation Factor-3, beta Subunit  (MeSH), Eukaryotic Initiation Factor-3, delta Subunit  (MeSH), Eukaryotic Initiation Factor-3, gamma Subunit  (MeSH), Eukaryotic Initiation Factor-3, Subunit 1  (MeSH), Eukaryotic Initiation Factor-3, Subunit 2  (MeSH), Eukaryotic Initiation Factor-3, Subunit 3  (MeSH), Eukaryotic Initiation Factor-3, Subunit 4  (MeSH), Eukaryotic Initiation Factor-3, Subunit 5  (MeSH), Eukaryotic Initiation Factor-3, Subunit 7  (MeSH), Eukaryotic Initiation Factor-3, Subunit 8  (MeSH), Eukaryotic Initiation Factor-3, zeta Subunit  (MeSH), Eukaryotic Initiation Factor-3 p110  (MeSH), Eukaryotic Peptide Initiation Factor-3  (MeSH), Eukaryotic Peptide Initiation Factor-3, alpha Subunit  (MeSH), Eukaryotic Peptide Initiation Factor-3, Subunit 1  (MeSH), Eukaryotic Peptide Initiation Factor-3, Subunit 2  (MeSH), Eukaryotic Peptide Initiation Factor-3, Subunit 3  (MeSH), Eukaryotic Peptide Initiation Factor-3, Subunit 4  (MeSH), Eukaryotic Peptide Initiation Factor 3, Subunit 5  (MeSH), Eukaryotic Translation Initiation Factor-3, Subunit 8  (MeSH), Int-6 Gene Product  (MeSH), INT6 Protein  (MeSH), Int-6 Protein  (MeSH), p42 EIF3 Protein  (MeSH), Peptide Initiation Factor EIF-3  (MeSH)

Eukaryotic Initiation Factor-3, Subunit 7 (n.) (MeSH)

D12.776.835.725.868.437, EIF3  (MeSH), EIF-3  (MeSH), EIF3-alpha  (MeSH), EIF3-beta  (MeSH), EIF3-epsilon  (MeSH), EIF3-gamma  (MeSH), EIF3 p110  (MeSH), EIF3 p42 Protein  (MeSH), EIF3-p48  (MeSH), EIF3S3 Gene Product  (MeSH), EIF3S3 Protein  (MeSH), EIF3S4 Protein  (MeSH), EIF3-zeta  (MeSH), Eukaryotic Initiation Factor-3  (MeSH), Eukaryotic Initiation Factor-3, beta Subunit  (MeSH), Eukaryotic Initiation Factor-3, delta Subunit  (MeSH), Eukaryotic Initiation Factor-3, gamma Subunit  (MeSH), Eukaryotic Initiation Factor-3, Subunit 1  (MeSH), Eukaryotic Initiation Factor-3, Subunit 2  (MeSH), Eukaryotic Initiation Factor-3, Subunit 3  (MeSH), Eukaryotic Initiation Factor-3, Subunit 4  (MeSH), Eukaryotic Initiation Factor-3, Subunit 5  (MeSH), Eukaryotic Initiation Factor-3, Subunit 6  (MeSH), Eukaryotic Initiation Factor-3, Subunit 8  (MeSH), Eukaryotic Initiation Factor-3, zeta Subunit  (MeSH), Eukaryotic Initiation Factor-3 p110  (MeSH), Eukaryotic Peptide Initiation Factor-3  (MeSH), Eukaryotic Peptide Initiation Factor-3, alpha Subunit  (MeSH), Eukaryotic Peptide Initiation Factor-3, Subunit 1  (MeSH), Eukaryotic Peptide Initiation Factor-3, Subunit 2  (MeSH), Eukaryotic Peptide Initiation Factor-3, Subunit 3  (MeSH), Eukaryotic Peptide Initiation Factor-3, Subunit 4  (MeSH), Eukaryotic Peptide Initiation Factor 3, Subunit 5  (MeSH), Eukaryotic Translation Initiation Factor-3, Subunit 8  (MeSH), Int-6 Gene Product  (MeSH), INT6 Protein  (MeSH), Int-6 Protein  (MeSH), p42 EIF3 Protein  (MeSH), Peptide Initiation Factor EIF-3  (MeSH)

Eukaryotic Initiation Factor-3, Subunit 8 (n.) (MeSH)

D12.776.835.725.868.437, EIF3  (MeSH), EIF-3  (MeSH), EIF3-alpha  (MeSH), EIF3-beta  (MeSH), EIF3-epsilon  (MeSH), EIF3-gamma  (MeSH), EIF3 p110  (MeSH), EIF3 p42 Protein  (MeSH), EIF3-p48  (MeSH), EIF3S3 Gene Product  (MeSH), EIF3S3 Protein  (MeSH), EIF3S4 Protein  (MeSH), EIF3-zeta  (MeSH), Eukaryotic Initiation Factor-3  (MeSH), Eukaryotic Initiation Factor-3, beta Subunit  (MeSH), Eukaryotic Initiation Factor-3, delta Subunit  (MeSH), Eukaryotic Initiation Factor-3, gamma Subunit  (MeSH), Eukaryotic Initiation Factor-3, Subunit 1  (MeSH), Eukaryotic Initiation Factor-3, Subunit 2  (MeSH), Eukaryotic Initiation Factor-3, Subunit 3  (MeSH), Eukaryotic Initiation Factor-3, Subunit 4  (MeSH), Eukaryotic Initiation Factor-3, Subunit 5  (MeSH), Eukaryotic Initiation Factor-3, Subunit 6  (MeSH), Eukaryotic Initiation Factor-3, Subunit 7  (MeSH), Eukaryotic Initiation Factor-3, zeta Subunit  (MeSH), Eukaryotic Initiation Factor-3 p110  (MeSH), Eukaryotic Peptide Initiation Factor-3  (MeSH), Eukaryotic Peptide Initiation Factor-3, alpha Subunit  (MeSH), Eukaryotic Peptide Initiation Factor-3, Subunit 1  (MeSH), Eukaryotic Peptide Initiation Factor-3, Subunit 2  (MeSH), Eukaryotic Peptide Initiation Factor-3, Subunit 3  (MeSH), Eukaryotic Peptide Initiation Factor-3, Subunit 4  (MeSH), Eukaryotic Peptide Initiation Factor 3, Subunit 5  (MeSH), Eukaryotic Translation Initiation Factor-3, Subunit 8  (MeSH), Int-6 Gene Product  (MeSH), INT6 Protein  (MeSH), Int-6 Protein  (MeSH), p42 EIF3 Protein  (MeSH), Peptide Initiation Factor EIF-3  (MeSH)

Eukaryotic Initiation Factor-3, beta Subunit (n.) (MeSH)

D12.776.835.725.868.437, EIF3  (MeSH), EIF-3  (MeSH), EIF3-alpha  (MeSH), EIF3-beta  (MeSH), EIF3-epsilon  (MeSH), EIF3-gamma  (MeSH), EIF3 p110  (MeSH), EIF3 p42 Protein  (MeSH), EIF3-p48  (MeSH), EIF3S3 Gene Product  (MeSH), EIF3S3 Protein  (MeSH), EIF3S4 Protein  (MeSH), EIF3-zeta  (MeSH), Eukaryotic Initiation Factor-3  (MeSH), Eukaryotic Initiation Factor-3, delta Subunit  (MeSH), Eukaryotic Initiation Factor-3, gamma Subunit  (MeSH), Eukaryotic Initiation Factor-3, Subunit 1  (MeSH), Eukaryotic Initiation Factor-3, Subunit 2  (MeSH), Eukaryotic Initiation Factor-3, Subunit 3  (MeSH), Eukaryotic Initiation Factor-3, Subunit 4  (MeSH), Eukaryotic Initiation Factor-3, Subunit 5  (MeSH), Eukaryotic Initiation Factor-3, Subunit 6  (MeSH), Eukaryotic Initiation Factor-3, Subunit 7  (MeSH), Eukaryotic Initiation Factor-3, Subunit 8  (MeSH), Eukaryotic Initiation Factor-3, zeta Subunit  (MeSH), Eukaryotic Initiation Factor-3 p110  (MeSH), Eukaryotic Peptide Initiation Factor-3  (MeSH), Eukaryotic Peptide Initiation Factor-3, alpha Subunit  (MeSH), Eukaryotic Peptide Initiation Factor-3, Subunit 1  (MeSH), Eukaryotic Peptide Initiation Factor-3, Subunit 2  (MeSH), Eukaryotic Peptide Initiation Factor-3, Subunit 3  (MeSH), Eukaryotic Peptide Initiation Factor-3, Subunit 4  (MeSH), Eukaryotic Peptide Initiation Factor 3, Subunit 5  (MeSH), Eukaryotic Translation Initiation Factor-3, Subunit 8  (MeSH), Int-6 Gene Product  (MeSH), INT6 Protein  (MeSH), Int-6 Protein  (MeSH), p42 EIF3 Protein  (MeSH), Peptide Initiation Factor EIF-3  (MeSH)

Eukaryotic Initiation Factor-3, delta Subunit (n.) (MeSH)

D12.776.835.725.868.437, EIF3  (MeSH), EIF-3  (MeSH), EIF3-alpha  (MeSH), EIF3-beta  (MeSH), EIF3-epsilon  (MeSH), EIF3-gamma  (MeSH), EIF3 p110  (MeSH), EIF3 p42 Protein  (MeSH), EIF3-p48  (MeSH), EIF3S3 Gene Product  (MeSH), EIF3S3 Protein  (MeSH), EIF3S4 Protein  (MeSH), EIF3-zeta  (MeSH), Eukaryotic Initiation Factor-3  (MeSH), Eukaryotic Initiation Factor-3, beta Subunit  (MeSH), Eukaryotic Initiation Factor-3, gamma Subunit  (MeSH), Eukaryotic Initiation Factor-3, Subunit 1  (MeSH), Eukaryotic Initiation Factor-3, Subunit 2  (MeSH), Eukaryotic Initiation Factor-3, Subunit 3  (MeSH), Eukaryotic Initiation Factor-3, Subunit 4  (MeSH), Eukaryotic Initiation Factor-3, Subunit 5  (MeSH), Eukaryotic Initiation Factor-3, Subunit 6  (MeSH), Eukaryotic Initiation Factor-3, Subunit 7  (MeSH), Eukaryotic Initiation Factor-3, Subunit 8  (MeSH), Eukaryotic Initiation Factor-3, zeta Subunit  (MeSH), Eukaryotic Initiation Factor-3 p110  (MeSH), Eukaryotic Peptide Initiation Factor-3  (MeSH), Eukaryotic Peptide Initiation Factor-3, alpha Subunit  (MeSH), Eukaryotic Peptide Initiation Factor-3, Subunit 1  (MeSH), Eukaryotic Peptide Initiation Factor-3, Subunit 2  (MeSH), Eukaryotic Peptide Initiation Factor-3, Subunit 3  (MeSH), Eukaryotic Peptide Initiation Factor-3, Subunit 4  (MeSH), Eukaryotic Peptide Initiation Factor 3, Subunit 5  (MeSH), Eukaryotic Translation Initiation Factor-3, Subunit 8  (MeSH), Int-6 Gene Product  (MeSH), INT6 Protein  (MeSH), Int-6 Protein  (MeSH), p42 EIF3 Protein  (MeSH), Peptide Initiation Factor EIF-3  (MeSH)

Eukaryotic Initiation Factor-3, gamma Subunit (n.) (MeSH)

D12.776.835.725.868.437, EIF3  (MeSH), EIF-3  (MeSH), EIF3-alpha  (MeSH), EIF3-beta  (MeSH), EIF3-epsilon  (MeSH), EIF3-gamma  (MeSH), EIF3 p110  (MeSH), EIF3 p42 Protein  (MeSH), EIF3-p48  (MeSH), EIF3S3 Gene Product  (MeSH), EIF3S3 Protein  (MeSH), EIF3S4 Protein  (MeSH), EIF3-zeta  (MeSH), Eukaryotic Initiation Factor-3  (MeSH), Eukaryotic Initiation Factor-3, beta Subunit  (MeSH), Eukaryotic Initiation Factor-3, delta Subunit  (MeSH), Eukaryotic Initiation Factor-3, Subunit 1  (MeSH), Eukaryotic Initiation Factor-3, Subunit 2  (MeSH), Eukaryotic Initiation Factor-3, Subunit 3  (MeSH), Eukaryotic Initiation Factor-3, Subunit 4  (MeSH), Eukaryotic Initiation Factor-3, Subunit 5  (MeSH), Eukaryotic Initiation Factor-3, Subunit 6  (MeSH), Eukaryotic Initiation Factor-3, Subunit 7  (MeSH), Eukaryotic Initiation Factor-3, Subunit 8  (MeSH), Eukaryotic Initiation Factor-3, zeta Subunit  (MeSH), Eukaryotic Initiation Factor-3 p110  (MeSH), Eukaryotic Peptide Initiation Factor-3  (MeSH), Eukaryotic Peptide Initiation Factor-3, alpha Subunit  (MeSH), Eukaryotic Peptide Initiation Factor-3, Subunit 1  (MeSH), Eukaryotic Peptide Initiation Factor-3, Subunit 2  (MeSH), Eukaryotic Peptide Initiation Factor-3, Subunit 3  (MeSH), Eukaryotic Peptide Initiation Factor-3, Subunit 4  (MeSH), Eukaryotic Peptide Initiation Factor 3, Subunit 5  (MeSH), Eukaryotic Translation Initiation Factor-3, Subunit 8  (MeSH), Int-6 Gene Product  (MeSH), INT6 Protein  (MeSH), Int-6 Protein  (MeSH), p42 EIF3 Protein  (MeSH), Peptide Initiation Factor EIF-3  (MeSH)

Eukaryotic Initiation Factor-3, zeta Subunit (n.) (MeSH)

D12.776.835.725.868.437, EIF3  (MeSH), EIF-3  (MeSH), EIF3-alpha  (MeSH), EIF3-beta  (MeSH), EIF3-epsilon  (MeSH), EIF3-gamma  (MeSH), EIF3 p110  (MeSH), EIF3 p42 Protein  (MeSH), EIF3-p48  (MeSH), EIF3S3 Gene Product  (MeSH), EIF3S3 Protein  (MeSH), EIF3S4 Protein  (MeSH), EIF3-zeta  (MeSH), Eukaryotic Initiation Factor-3  (MeSH), Eukaryotic Initiation Factor-3, beta Subunit  (MeSH), Eukaryotic Initiation Factor-3, delta Subunit  (MeSH), Eukaryotic Initiation Factor-3, gamma Subunit  (MeSH), Eukaryotic Initiation Factor-3, Subunit 1  (MeSH), Eukaryotic Initiation Factor-3, Subunit 2  (MeSH), Eukaryotic Initiation Factor-3, Subunit 3  (MeSH), Eukaryotic Initiation Factor-3, Subunit 4  (MeSH), Eukaryotic Initiation Factor-3, Subunit 5  (MeSH), Eukaryotic Initiation Factor-3, Subunit 6  (MeSH), Eukaryotic Initiation Factor-3, Subunit 7  (MeSH), Eukaryotic Initiation Factor-3, Subunit 8  (MeSH), Eukaryotic Initiation Factor-3 p110  (MeSH), Eukaryotic Peptide Initiation Factor-3  (MeSH), Eukaryotic Peptide Initiation Factor-3, alpha Subunit  (MeSH), Eukaryotic Peptide Initiation Factor-3, Subunit 1  (MeSH), Eukaryotic Peptide Initiation Factor-3, Subunit 2  (MeSH), Eukaryotic Peptide Initiation Factor-3, Subunit 3  (MeSH), Eukaryotic Peptide Initiation Factor-3, Subunit 4  (MeSH), Eukaryotic Peptide Initiation Factor 3, Subunit 5  (MeSH), Eukaryotic Translation Initiation Factor-3, Subunit 8  (MeSH), Int-6 Gene Product  (MeSH), INT6 Protein  (MeSH), Int-6 Protein  (MeSH), p42 EIF3 Protein  (MeSH), Peptide Initiation Factor EIF-3  (MeSH)

   Publicidade ▼

Dicionario analógico


Eukaryotic Initiation Factor-2, alpha Subunit (n.) [MeSH]



Eukaryotic Initiation Factor-3, Subunit 1 (n.) [MeSH]






Wikipedia

Eukaryotic initiation factor

From Wikipedia

Jump to: navigation, search
Eukaryotic initiation factors are proteins used in eukaryotic translation. There exist many more eukaryotic initiation factors (eIF) than prokaryotic initiation factors due to greater biological complexity. Processes eIF is involved in include: formation of initiation complexes with 5' mRNA and complexing with Met-tRNAi, binding mRNA-factor to Met-tRNAi, scanning mRNA for the initiator codon AUG, locating the binding site of initator tRNA to the AUG start site, and joining of the 60S subunit to create the 80S subunit.

The protein RLI is known to have an essential, probably catalytic role in the formation of initiation complexes as well.

Contents

eIF4 (eIF4F)

The eIF4 initiation factors include eIF4A2, eIF4A3, eIF4B, eIF4E, and eIF4G. eIF4F is often used to refer to the complex of eIF4A, eIF4E, and eIF4G.

eIF4G is a scaffolding protein that interacts with eIF3 (see below), as well as the other members of the eIF4F complex. eIF4A – an RNA helicase – is important for resolving any secondary structures the mRNA transcript may form. eIF4E binds the 5' cap of the mRNA and the rate-limiting step for cap-dependent translation.

eIF4B contains two RNA-binding domains – one non-specifically interacts with mRNA, whereas the second specifically binds the 18S portion of the small ribosomal subunit. It acts as an anchor, as well as a critical co-factor for eIF4A. It is a substrate of S6K, and, when phosphorylated, it promotes the formation of the pre-initiation complex.

eIF1 & eIF3

eIF1, eIF1A, and eIF3, all bind to the ribosome subunit-mRNA complex. They have been implicated in preventing the large ribosomal subunit from binding the small subunit before it is ready to commence elongation.

In mammals, eIF3 is the largest scaffolding initiation factor, made up of 13 subunits (a-m). It is roughly ~750 kDa and it controls the assembly of 40S ribosomal subunit on mRNA that have a 5' cap or an IRES. eIF3 uses the eIF4F complex or IRES (Internal Ribosomal Entry Site) from viruses to position the mRNA strand near the exit site of the 40S ribosome subunit, thus promoting the assembly of the pre-initiation complex.

In many cancers, eIF3 is overexpressed. Under serum-deprived conditions (inactive state), eIF3 is bound to S6K1. On stimulation either by mitogens, growth factors, or drugs, mTOR/Raptor complex gets activated and, in turn, binds and phosphorylates S6K1 on T389 (linker region), causing a conformational change that causes the kinase S6K1 to dissociate from eIF3. The T389 phosphorylated S6k1 is then further phosphorylated by PDK1 on T229. This second phosphorylation fully activates the S6K1 kinase, which can then phosphorylate eIF4B, S6 and other protein targets.

eIF2

See main article at EIF-2

eIF2 is a GTP-binding protein responsible for bringing the initiator tRNA to the P-site of the pre-initiation complex. It has specificity for the methionine-charged initiator tRNA, which is distinct from other methionine-charged tRNAs specific for elongation of the polypeptide chain. Once it has placed the initiator tRNA on the AUG start codon in the P-site, it hydrolyzes GTP into GDP, and dissociates. This hydrolysis, also signals for the dissociation of eIF3, eIF1, and eIF1A, and allows the large subunit to bind. This signals the beginning of elongation.

eIF2 has three subunits, eIF2-α, β, and γ. The former is of particular importance for cells that may need to turn off protein synthesis globally. When phosphorylated, it sequesters eIF2B (not to be confused with beta), a GEF. Without this GEF, GDP cannot be exchanged for GTP, and translation is repressed.

eIF2α-induced translation repression occurs in reticulocytes when starved for iron. In addition, protein kinase R (PKR) phosphorylates eIF2α when dsRNA is detected in many multicellular organisms, leading to cell death.

eIF5 & eIF5B

eIF5A is a GTPase-activating protein, which helps the large ribosomal subunit associate with the small subunit. It is required for GTP-hydrolysis by eIF2 and contains the unusual amino acid hypusine.[1]

eIF5B is a GTPase, and is involved in assembly of the full ribosome (which requires GTP hydrolysis).

See also

References

  1. Park, Myung Hee (February 2006). [Expression error: Missing operand for > "The post-translational synthesis of a polyamine-derived amino acid, hypusine, in the eukaryotic translation initiation factor 5A (eIF5A)"]. Journal of Biochemistry 139 (2): 161–9. doi:10.1093/jb/mvj034. PMID 16452303. 

External links

 

todas as traduções do Eukaryotic_initiation_factor


Conteùdo de sensagent

  • definição
  • sinónimos
  • antónimos
  • enciclopédia

 

5307 visitantes em linha

calculado em 0,156s