O60841 (IF2P_HUMAN) Reviewed, UniProtKB/Swiss-Prot
Last modified
May 1, 2013.
Version 129.
History...
Names·Attributes·General annotation·Ontologies·Interactions·Sequence annotation·Sequences·References·Cross-refs·Entry info·DocumentsCustomize order
Names·Attributes·General annotation·Ontologies·Interactions·Sequence annotation·Sequences·References·Cross-refs·Entry info·DocumentsCustomize orderNames and origin
| Protein names | Recommended name: Eukaryotic translation initiation factor 5B Short name=eIF-5B Alternative name(s): Translation initiation factor IF-2 | ||||
| Gene names |
| ||||
| Organism | Homo sapiens (Human) [Reference proteome] | ||||
| Taxonomic identifier | 9606 [NCBI] | ||||
| Taxonomic lineage | Eukaryota › Metazoa › Chordata › Craniata › Vertebrata › Euteleostomi › Mammalia › Eutheria › Euarchontoglires › Primates › Haplorrhini › Catarrhini › Hominidae › Homo![]() |
Protein attributes
| Sequence length | 1220 AA. |
| Sequence status | Complete. |
| Protein existence | Evidence at protein level |
General annotation (Comments)
| Function | Function in general translation initiation by promoting the binding of the formylmethionine-tRNA to ribosomes. Seems to function along with eIF-2 By similarity. |
| Subunit structure | Interacts with ANXA5 in a calcium and phospholipid-dependent manner By similarity. |
| Subcellular location | Cytoplasm By similarity. |
| Sequence similarities | Belongs to the IF-2 family. |
| Sequence caution | The sequence BAA34461.2 differs from that shown. Reason: Erroneous initiation. |
Ontologies
| Keywords | |
|---|---|
| Biological process | Protein biosynthesis |
| Cellular component | Cytoplasm |
| Coding sequence diversity | Polymorphism |
| Ligand | GTP-binding Nucleotide-binding |
| Molecular function | Initiation factor |
| PTM | Phosphoprotein |
| Technical term | Complete proteome Direct protein sequencing Reference proteome |
| Gene Ontology (GO) | |
| Biological_process | GTP catabolic process Inferred from electronic annotation. Source: GOC regulation of translational initiationInferred from direct assay Ref.1. Source: UniProtKB |
| Cellular_component | cytosol Traceable author statement. Source: Reactome |
| Molecular_function | GTP binding Inferred from electronic annotation. Source: UniProtKB-KW GTPase activityInferred from electronic annotation. Source: InterPro translation initiation factor activityInferred from direct assay Ref.1. Source: UniProtKB |
| Complete GO annotation... | |
Binary interactions
With | Entry | #Exp. | IntAct | Notes |
|---|---|---|---|---|
| EIF1AY | O14602 | 2 | EBI-928530,EBI-286439 | |
| ETS1 | P14921 | 2 | EBI-928530,EBI-913209 |
Sequence annotation (Features)
| Feature key | Position(s) | Length | Description | Graphical view | Feature identifier | ||||
Molecule processing | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Chain | 1 – 1220 | 1220 | Eukaryotic translation initiation factor 5B | PRO_0000137294 | |||||
Regions | |||||||||
| Nucleotide binding | 638 – 645 | 8 | GTP By similarity | ||||||
| Compositional bias | 39 – 50 | 12 | Poly-Lys | ||||||
| Compositional bias | 94 – 99 | 6 | Poly-Lys | ||||||
| Compositional bias | 138 – 142 | 5 | Poly-Asp | ||||||
| Compositional bias | 313 – 322 | 10 | Poly-Lys | ||||||
| Compositional bias | 353 – 356 | 4 | Poly-Glu | ||||||
| Compositional bias | 361 – 364 | 4 | Poly-Glu | ||||||
| Compositional bias | 491 – 496 | 6 | Poly-Glu | ||||||
| Compositional bias | 529 – 567 | 39 | Asp/Glu-rich (acidic) | ||||||
Amino acid modifications | |||||||||
| Modified residue | 107 | 1 | Phosphoserine Ref.8 Ref.13 Ref.14 Ref.17 | ||||||
| Modified residue | 113 | 1 | Phosphoserine Ref.8 Ref.13 Ref.14 Ref.15 Ref.16 Ref.17 | ||||||
| Modified residue | 134 | 1 | Phosphotyrosine Ref.13 Ref.15 Ref.17 | ||||||
| Modified residue | 135 | 1 | Phosphoserine Ref.13 Ref.15 Ref.16 Ref.17 | ||||||
| Modified residue | 137 | 1 | Phosphoserine Ref.13 Ref.15 Ref.16 Ref.17 | ||||||
| Modified residue | 164 | 1 | Phosphoserine Ref.8 Ref.13 Ref.14 Ref.15 Ref.16 Ref.17 | ||||||
| Modified residue | 171 | 1 | Phosphoserine Ref.17 | ||||||
| Modified residue | 178 | 1 | Phosphoserine By similarity | ||||||
| Modified residue | 182 | 1 | Phosphoserine Ref.13 Ref.15 Ref.16 | ||||||
| Modified residue | 183 | 1 | Phosphoserine Ref.13 Ref.15 | ||||||
| Modified residue | 186 | 1 | Phosphoserine Ref.13 Ref.15 Ref.16 | ||||||
| Modified residue | 190 | 1 | Phosphoserine Ref.5 Ref.13 Ref.15 Ref.16 | ||||||
| Modified residue | 214 | 1 | Phosphoserine Ref.8 Ref.9 Ref.10 Ref.11 Ref.15 Ref.16 Ref.17 | ||||||
| Modified residue | 301 | 1 | Phosphothreonine Ref.13 Ref.16 | ||||||
| Modified residue | 498 | 1 | Phosphothreonine Ref.17 | ||||||
| Modified residue | 547 | 1 | Phosphoserine Ref.13 | ||||||
| Modified residue | 560 | 1 | Phosphoserine Ref.13 | ||||||
| Modified residue | 588 | 1 | Phosphoserine Ref.13 Ref.16 | ||||||
| Modified residue | 589 | 1 | Phosphoserine Ref.16 | ||||||
| Modified residue | 591 | 1 | Phosphoserine Ref.16 | ||||||
| Modified residue | 595 | 1 | Phosphoserine Ref.13 Ref.16 | ||||||
Natural variations | |||||||||
| Natural variant | 337 | 1 | S → G. Corresponds to variant rs10642 [ dbSNP | Ensembl ]. | VAR_055954 | |||||
| Natural variant | 360 | 1 | R → G. Corresponds to variant rs3205296 [ dbSNP | Ensembl ]. | VAR_055955 | |||||
| Natural variant | 522 | 1 | K → T. Ref.1 Ref.2 Ref.18 Corresponds to variant rs7558074 [ dbSNP | Ensembl ]. | VAR_060587 | |||||
Experimental info | |||||||||
| Mutagenesis | 640 | 1 | V → G: Loss of activity in vivo. Retains full activity in vitro. Ref.2 | ||||||
| Mutagenesis | 706 | 1 | H → E: Loss of activity; both in vivo and in vitro. Ref.2 | ||||||
| Mutagenesis | 706 | 1 | H → Q: Loss of activity in vivo. Partial activity in vitro. Ref.2 | ||||||
| Mutagenesis | 759 | 1 | D → N: Loss of activity; both in vivo and in vitro. Ref.2 | ||||||
| Sequence conflict | 64 | 1 | E → G in BAA34461. Ref.3 | ||||||
| Sequence conflict | 92 | 1 | T → I in CAB44357. Ref.1 | ||||||
| Sequence conflict | 180 | 1 | I → M in AAD16006. Ref.2 | ||||||
| Sequence conflict | 256 | 1 | K → R in AAD16006. Ref.2 | ||||||
| Sequence conflict | 549 | 1 | E → V in AAD16006. Ref.2 | ||||||
| Sequence conflict | 669 | 1 | G → W in AAD16006. Ref.2 | ||||||
| Sequence conflict | 894 | 1 | E → K in CAB44357. Ref.1 | ||||||
Sequences
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References
| « Hide 'large scale' references | |
| [1] | "Cloning and characterization of hIF2, a human homologue of bacterial translation initiation factor 2 and its interaction with HIV-1 matrix." Wilson S.A., Sieiro-Vazquez C., Edwards N.J., Iourin O., Byles E.D., Kotsopoulou E., Adamson C.S., Kingsman S.M., Kingsman A.J., Martin-Rendon E. Biochem. J. 342:97-103(1999) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [MRNA], VARIANT THR-522. Tissue: Cervix carcinoma. |
| [2] | "Universal conservation in translation initiation revealed by human and archaeal homologs of bacterial translation initiation factor IF2." Lee J.H., Choi S.K., Roll-Mecak A., Burley S.K., Dever T.E. Proc. Natl. Acad. Sci. U.S.A. 96:4342-4347(1999) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [MRNA], MUTAGENESIS OF VAL-640; HIS-706 AND ASP-759, CHARACTERIZATION, VARIANT THR-522. Tissue: Testis. |
| [3] | "Prediction of the coding sequences of unidentified human genes. XI. The complete sequences of 100 new cDNA clones from brain which code for large proteins in vitro." Nagase T., Ishikawa K., Suyama M., Kikuno R., Miyajima N., Tanaka A., Kotani H., Nomura N., Ohara O. DNA Res. 5:277-286(1998) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA]. Tissue: Brain. |
| [4] | "Generation and annotation of the DNA sequences of human chromosomes 2 and 4." Hillier L.W., Graves T.A., Fulton R.S., Fulton L.A., Pepin K.H., Minx P., Wagner-McPherson C., Layman D., Wylie K., Sekhon M., Becker M.C., Fewell G.A., Delehaunty K.D., Miner T.L., Nash W.E., Kremitzki C., Oddy L., Du H. Wilson R.K.Nature 434:724-731(2005) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. |
| [5] | Bienvenut W.V., Waridel P., Quadroni M. Submitted (MAR-2009) to UniProtKB Cited for: PROTEIN SEQUENCE OF 9-33; 77-94; 106-122; 180-197; 206-224; 285-298; 425-436; 629-644; 653-683; 695-713; 749-757; 766-777; 882-902; 1000-1015; 1044-1055; 1096-1120 AND 1175-1185, PHOSPHORYLATION AT SER-190, MASS SPECTROMETRY. Tissue: Cervix carcinoma. |
| [6] | "The full-ORF clone resource of the German cDNA consortium." Bechtel S., Rosenfelder H., Duda A., Schmidt C.P., Ernst U., Wellenreuther R., Mehrle A., Schuster C., Bahr A., Bloecker H., Heubner D., Hoerlein A., Michel G., Wedler H., Koehrer K., Ottenwaelder B., Poustka A., Wiemann S., Schupp I. BMC Genomics 8:399-399(2007) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA] OF 89-1220. Tissue: Testis. |
| [7] | "Characterization of 16 novel human genes showing high similarity to yeast sequences." Stanchi F., Bertocco E., Toppo S., Dioguardi R., Simionati B., Cannata N., Zimbello R., Lanfranchi G., Valle G. Yeast 18:69-80(2001) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [MRNA] OF 833-1220. |
| [8] | "Global, in vivo, and site-specific phosphorylation dynamics in signaling networks." Olsen J.V., Blagoev B., Gnad F., Macek B., Kumar C., Mortensen P., Mann M. Cell 127:635-648(2006) [PubMed] [Europe PMC] [Abstract] Cited for: PHOSPHORYLATION [LARGE SCALE ANALYSIS] AT SER-107; SER-113; SER-164 AND SER-214, MASS SPECTROMETRY. Tissue: Cervix carcinoma. |
| [9] | "Toward a global characterization of the phosphoproteome in prostate cancer cells: identification of phosphoproteins in the LNCaP cell line." Giorgianni F., Zhao Y., Desiderio D.M., Beranova-Giorgianni S. Electrophoresis 28:2027-2034(2007) [PubMed] [Europe PMC] [Abstract] Cited for: PHOSPHORYLATION [LARGE SCALE ANALYSIS] AT SER-214, MASS SPECTROMETRY. Tissue: Prostate cancer. |
| [10] | "Improved titanium dioxide enrichment of phosphopeptides from HeLa cells and high confident phosphopeptide identification by cross-validation of MS/MS and MS/MS/MS spectra." Yu L.-R., Zhu Z., Chan K.C., Issaq H.J., Dimitrov D.S., Veenstra T.D. J. Proteome Res. 6:4150-4162(2007) [PubMed] [Europe PMC] [Abstract] Cited for: PHOSPHORYLATION [LARGE SCALE ANALYSIS] AT SER-214, MASS SPECTROMETRY. Tissue: Cervix carcinoma. |
| [11] | "Phosphorylation analysis of primary human T lymphocytes using sequential IMAC and titanium oxide enrichment." Carrascal M., Ovelleiro D., Casas V., Gay M., Abian J. J. Proteome Res. 7:5167-5176(2008) [PubMed] [Europe PMC] [Abstract] Cited for: PHOSPHORYLATION [LARGE SCALE ANALYSIS] AT SER-214, MASS SPECTROMETRY. Tissue: T-cell. |
| [12] | "Phosphoproteome of resting human platelets." Zahedi R.P., Lewandrowski U., Wiesner J., Wortelkamp S., Moebius J., Schuetz C., Walter U., Gambaryan S., Sickmann A. J. Proteome Res. 7:526-534(2008) [PubMed] [Europe PMC] [Abstract] Cited for: IDENTIFICATION BY MASS SPECTROMETRY [LARGE SCALE ANALYSIS]. Tissue: Platelet. |
| [13] | "A quantitative atlas of mitotic phosphorylation." Dephoure N., Zhou C., Villen J., Beausoleil S.A., Bakalarski C.E., Elledge S.J., Gygi S.P. Proc. Natl. Acad. Sci. U.S.A. 105:10762-10767(2008) [PubMed] [Europe PMC] [Abstract] Cited for: PHOSPHORYLATION [LARGE SCALE ANALYSIS] AT SER-107; SER-113; TYR-134; SER-135; SER-137; SER-164; SER-182; SER-183; SER-186; SER-190; THR-301; SER-547; SER-560; SER-588 AND SER-595, MASS SPECTROMETRY. Tissue: Cervix carcinoma. |
| [14] | "Large-scale phosphoproteome analysis of human liver tissue by enrichment and fractionation of phosphopeptides with strong anion exchange chromatography." Han G., Ye M., Zhou H., Jiang X., Feng S., Jiang X., Tian R., Wan D., Zou H., Gu J. Proteomics 8:1346-1361(2008) [PubMed] [Europe PMC] [Abstract] Cited for: PHOSPHORYLATION [LARGE SCALE ANALYSIS] AT SER-107; SER-113 AND SER-164, MASS SPECTROMETRY. Tissue: Liver. |
| [15] | "Quantitative phosphoproteomic analysis of T cell receptor signaling reveals system-wide modulation of protein-protein interactions." Mayya V., Lundgren D.H., Hwang S.-I., Rezaul K., Wu L., Eng J.K., Rodionov V., Han D.K. Sci. Signal. 2:RA46-RA46(2009) [PubMed] [Europe PMC] [Abstract] Cited for: PHOSPHORYLATION [LARGE SCALE ANALYSIS] AT SER-113; TYR-134; SER-135; SER-137; SER-164; SER-182; SER-183; SER-186; SER-190 AND SER-214, MASS SPECTROMETRY. Tissue: Leukemic T-cell. |
| [16] | "Quantitative phosphoproteomics reveals widespread full phosphorylation site occupancy during mitosis." Olsen J.V., Vermeulen M., Santamaria A., Kumar C., Miller M.L., Jensen L.J., Gnad F., Cox J., Jensen T.S., Nigg E.A., Brunak S., Mann M. Sci. Signal. 3:RA3-RA3(2010) [PubMed] [Europe PMC] [Abstract] Cited for: PHOSPHORYLATION [LARGE SCALE ANALYSIS] AT SER-113; SER-135; SER-137; SER-164; SER-182; SER-186; SER-190; SER-214; THR-301; SER-588; SER-589; SER-591 AND SER-595, MASS SPECTROMETRY. Tissue: Cervix carcinoma. |
| [17] | "System-wide temporal characterization of the proteome and phosphoproteome of human embryonic stem cell differentiation." Rigbolt K.T., Prokhorova T.A., Akimov V., Henningsen J., Johansen P.T., Kratchmarova I., Kassem M., Mann M., Olsen J.V., Blagoev B. Sci. Signal. 4:RS3-RS3(2011) [PubMed] [Europe PMC] [Abstract] Cited for: PHOSPHORYLATION [LARGE SCALE ANALYSIS] AT SER-107; SER-113; TYR-134; SER-135; SER-137; SER-164; SER-171; SER-214 AND THR-498, MASS SPECTROMETRY. |
| [18] | "Initial characterization of the human central proteome." Burkard T.R., Planyavsky M., Kaupe I., Breitwieser F.P., Buerckstuemmer T., Bennett K.L., Superti-Furga G., Colinge J. BMC Syst. Biol. 5:17-17(2011) [PubMed] [Europe PMC] [Abstract] Cited for: VARIANT [LARGE SCALE ANALYSIS] THR-522, MASS SPECTROMETRY. |
| + | Additional computationally mapped references. |
Cross-references
Sequence databases | |
|---|---|
| EMBL GenBank DDBJ | AJ006776 mRNA. Translation: CAB44357.1. AF078035 mRNA. Translation: AAD16006.1. AC018690 Genomic DNA. Translation: AAY24313.1. AC079447 Genomic DNA. Translation: AAX93258.1. AB018284 mRNA. Translation: BAA34461.2. Different initiation. AL133563 mRNA. Translation: CAB63717.1. AJ006412 mRNA. Translation: CAA07018.1. |
| IPI | IPI00299254. |
| PIR | T43483. |
| RefSeq | NP_056988.3. NM_015904.3. |
| UniGene | Hs.158688. |
3D structure databases | |
| ProteinModelPortal | O60841. |
| SMR | O60841. Positions 628-1215. |
| ModBase | Search... |
Protein-protein interaction databases | |
| IntAct | O60841. 11 interactions. |
| STRING | 9606.ENSP00000289371. |
PTM databases | |
| PhosphoSite | O60841. |
Proteomic databases | |
| PaxDb | O60841. |
| PRIDE | O60841. |
Protocols and materials databases | |
| StructuralBiologyKnowledgebase | Search... |
Genome annotation databases | |
| Ensembl | ENST00000289371; ENSP00000289371; ENSG00000158417. |
| GeneID | 9669. |
| KEGG | hsa:9669. |
| UCSC | uc002tab.3. human. |
Organism-specific databases | |
| CTD | 9669. |
| GeneCards | GC02P099953. |
| H-InvDB | HIX0002308. |
| HGNC | HGNC:30793. EIF5B. |
| HPA | HPA034648. |
| MIM | 606086. gene. |
| neXtProt | NX_O60841. |
| PharmGKB | PA134864457. |
| HUGE | Search... |
| GenAtlas | Search... |
Phylogenomic databases | |
| eggNOG | COG0532. |
| HOGENOM | HOG000105770. |
| HOVERGEN | HBG019036. |
| InParanoid | O60841. |
| KO | K03243. |
| OMA | VMGVIVE. |
| OrthoDB | EOG44BB1J. |
Enzyme and pathway databases | |
| Reactome | REACT_17015. Metabolism of proteins. REACT_71. Gene Expression. |
Gene expression databases | |
| ArrayExpress | O60841. |
| Bgee | O60841. |
| CleanEx | HS_EIF5B. |
| Genevestigator | O60841. |
| GermOnline | ENSG00000158417. Homo sapiens. |
Family and domain databases | |
| Gene3D | 3.40.50.10050. 1 hit. |
| InterPro | IPR000795. EF_GTP-bd_dom. IPR005225. Small_GTP-bd_dom. IPR015760. TIF_IF2. IPR023115. TIF_IF2_dom3. IPR004161. Transl_elong_EFTu/EF1A_2. IPR009000. Transl_elong_init/rib_B-barrel. [Graphical view] |
| PANTHER | PTHR23115:SF41. PTHR23115:SF41. 1 hit. |
| Pfam | PF00009. GTP_EFTU. 1 hit. PF03144. GTP_EFTU_D2. 1 hit. PF11987. IF-2. 1 hit. [Graphical view] |
| PRINTS | PR00315. ELONGATNFCT. |
| SUPFAM | SSF52156. TIF_IF2_dom3. 1 hit. SSF50447. Translat_factor. 1 hit. |
| TIGRFAMs | TIGR00231. small_GTP. 1 hit. |
| PROSITE | PS01176. IF2. False negative. [Graphical view] |
| ProtoNet | Search... |
Other | |
| ChiTaRS | EIF5B. human. |
| GenomeRNAi | 9669. |
| NextBio | 36307. |
| PMAP-CutDB | O60841. |
| SOURCE | Search... |
Entry information
| Entry name | IF2P_HUMAN | ||||||||
| Accession | Primary (citable) accession number: O60841 Secondary accession number(s): O95805 Q9UMN7 | ||||||||
| Entry history |
| ||||||||
| Entry status | Reviewed (UniProtKB/Swiss-Prot) | ||||||||
| Annotation program | Chordata Protein Annotation Program | ||||||||
| Disclaimer | Any medical or genetic information present in this entry is provided for research, educational and informational purposes only. It is not in any way intended to be used as a substitute for professional medical advice, diagnosis, treatment or care. | ||||||||
Relevant documents
| Translation initiation factors List of translation initiation factor entries |
| Human chromosome 2 Human chromosome 2: entries, gene names and cross-references to MIM |
| Human entries with polymorphisms or disease mutations List of human entries with polymorphisms or disease mutations |
| Human polymorphisms and disease mutations Index of human polymorphisms and disease mutations |
| MIM cross-references Online Mendelian Inheritance in Man (MIM) cross-references in UniProtKB/Swiss-Prot |
| SIMILARITY comments Index of protein domains and families |

Clusters with
