Reviewed,
UniProtKB/Swiss-Prot P41375 (IF2B_DROME)
Last modified
November 4, 2008.
Version 66.
History...
Clusters with 100%,
90%,
50% identity |
Documents (4) |
Third-party data |
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Names and origin
| Protein names | Recommended name: Eukaryotic translation initiation factor 2 subunit 2 Alternative name(s): Eukaryotic translation initiation factor 2 subunit beta Short name=eIF-2-beta | ||||||
| Gene names |
| ||||||
| Organism | Drosophila melanogaster (Fruit fly) [Complete proteome] | ||||||
| Taxonomic identifier | 7227 [NCBI] | ||||||
| Taxonomic lineage | Eukaryota › Metazoa › Arthropoda › Hexapoda › Insecta › Pterygota › Neoptera › Endopterygota › Diptera › Brachycera › Muscomorpha › Ephydroidea › Drosophilidae › Drosophila › Sophophora |
Protein attributes
| Sequence length | 312 AA. |
| Sequence status | Complete. |
| Sequence processing | The displayed sequence is not processed. |
| Protein existence | Evidence at protein level. |
General annotation (Comments)
| Function | eIF-2 functions in the early steps of protein synthesis by forming a ternary complex with GTP and initiator tRNA. This preinitiation complex mediates ribosomal recognition of a start codon during the scanning process of the leader region. |
| Subunit structure | Heterotrimer composed of an alpha, a beta and a gamma chain. |
| Sequence similarities | Belongs to the eIF-2-beta/eIF-5 family. |
Ontologies
Keywords | |
|---|---|
| Biological process | Protein biosynthesis |
| Domain | Zinc-finger |
| Ligand | Metal-binding Zinc |
| Molecular function | Initiation factor |
| PTM | Phosphoprotein |
| Technical term | Complete proteome |
Gene Ontology (GO) | |
| Biological process | mitotic spindle elongation Inferred from mutant phenotype. Source: FlyBase |
| Molecular function | protein binding Inferred from physical interaction. Source: IntAct |
| Complete GO annotation... | |
Sequence annotation (Features)
| Feature key | Position(s) | Length | Description | Graphical view | Feature identifier | ||||
Molecule processing | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Chain | 1 – 312 | 312 | Eukaryotic translation initiation factor 2 subunit 2 | PRO_0000137409 | |||||
Regions | |||||||||
| Zinc finger | 260 – 284 | 25 | C4-type Potential | ||||||
| Compositional bias | 13 – 19 | 7 | Poly-Lys | ||||||
| Compositional bias | 63 – 70 | 8 | Poly-Lys | ||||||
| Compositional bias | 93 – 99 | 7 | Poly-Glu | ||||||
| Compositional bias | 110 – 118 | 9 | Poly-Lys | ||||||
Amino acid modifications | |||||||||
| Modified residue | 44 | 1 | Phosphoserine | ||||||
| Modified residue | 133 | 1 | Phosphoserine | ||||||
| Modified residue | 145 | 1 | Phosphothreonine | ||||||
Experimental info | |||||||||
| Sequence conflict | 60 | 1 | S → G in AAL48875. Ref.4 | ||||||
| Sequence conflict | 64 | 1 | K → E in AAL48875. Ref.4 | ||||||
Sequences
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References
| « Hide 'large scale' references | |
| [1] | "Isolation and characterization of the Drosophila melanogaster gene encoding translation-initiation factor eIF-2 beta." Ye X., Cavener D.R. Gene 142:271-274(1994) [PubMed: 8194763] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [MRNA]. Strain: Oregon-R. Tissue: Embryo and Pupae. |
| [2] | "The genome sequence of Drosophila melanogaster." Adams M.D., Celniker S.E., Holt R.A., Evans C.A., Gocayne J.D., Amanatides P.G., Scherer S.E., Li P.W., Hoskins R.A., Galle R.F., George R.A., Lewis S.E., Richards S., Ashburner M., Henderson S.N., Sutton G.G., Wortman J.R., Yandell M.D. Venter J.C.Science 287:2185-2195(2000) [PubMed: 10731132] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. Strain: Berkeley. |
| [3] | "Annotation of the Drosophila melanogaster euchromatic genome: a systematic review." Misra S., Crosby M.A., Mungall C.J., Matthews B.B., Campbell K.S., Hradecky P., Huang Y., Kaminker J.S., Millburn G.H., Prochnik S.E., Smith C.D., Tupy J.L., Whitfield E.J., Bayraktaroglu L., Berman B.P., Bettencourt B.R., Celniker S.E., de Grey A.D.N.J. Lewis S.E.Genome Biol. 3:RESEARCH0083.1-RESEARCH0083.22(2002) [PubMed: 12537572] [Abstract] Cited for: GENOME REANNOTATION. |
| [4] | "A Drosophila full-length cDNA resource." Stapleton M., Carlson J.W., Brokstein P., Yu C., Champe M., George R.A., Guarin H., Kronmiller B., Pacleb J.M., Park S., Wan K.H., Rubin G.M., Celniker S.E. Genome Biol. 3:RESEARCH0080.1-RESEARCH0080.8(2002) [PubMed: 12537569] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA]. Strain: Berkeley. Tissue: Embryo. |
| [5] | "An integrated chemical, mass spectrometric and computational strategy for (quantitative) phosphoproteomics: application to Drosophila melanogaster Kc167 cells." Bodenmiller B., Mueller L.N., Pedrioli P.G.A., Pflieger D., Juenger M.A., Eng J.K., Aebersold R., Tao W.A. Mol. Biosyst. 3:275-286(2007) [PubMed: 17372656] [Abstract] Cited for: PHOSPHORYLATION [LARGE SCALE ANALYSIS] AT SER-44, MASS SPECTROMETRY. |
| [6] | "Phosphoproteome analysis of Drosophila melanogaster embryos." Zhai B., Villen J., Beausoleil S.A., Mintseris J., Gygi S.P. J. Proteome Res. 7:1675-1682(2008) [PubMed: 18327897] [Abstract] Cited for: PHOSPHORYLATION [LARGE SCALE ANALYSIS] AT SER-133 AND THR-145, MASS SPECTROMETRY. Tissue: Embryo. |
Cross-references
Sequence databases | |
|---|---|
| L19197 mRNA. Translation: AAA28504.1. AE014296 Genomic DNA. Translation: AAF49902.1. AY071253 mRNA. Translation: AAL48875.1. | |
| RefSeq | NP_524043.1. |
| UniGene | Dm.942 |
3D structure databases | |
| ModBase | Search... |
Protein-protein interaction databases | |
| DIP | DIP:21095N. |
| IntAct | P41375. |
Genome annotation databases | |
| Ensembl | CG4153. Drosophila melanogaster. [Contig view] |
| GeneID | 39433. |
| KEGG | dme:Dmel_CG4153. |
| NMPDR | fig|7227.3.peg.9557. |
Organism-specific databases | |
| FlyBase | FBgn0004926. eIF-2beta. |
Phylogenomic databases | |
| HOGENOM | P41375. |
Enzyme and pathway databases | |
| BioCyc | DMEL-XXX-02:DMEL-XXX-02-016419-MON. |
Gene expression databases | |
| GermOnline | CG4153. Drosophila melanogaster. |
Family and domain databases | |
| InterPro | IPR002735. Transl_init_fac_IF2/IF5. [Graphical view] |
| Pfam | PF01873. eIF-5_eIF-2B. 1 hit. [Graphical view] |
| ProDom | PD004078. eIF5_eIF2B. 1 hit. [Graphical view] [Entries sharing at least one domain] |
| SMART | SM00653. eIF2B_5. 1 hit. [Graphical view] |
| BLOCKS | Search... |
| ProtoNet | Search... |
Other Resources | |
| NextBio | 813610. |
Entry information
| Entry name | IF2B_DROME | ||||||||
| Accession | Primary (citable) accession number: P41375 Secondary accession number(s): Q8SYX9, Q9VTZ3 | ||||||||
| Entry history |
| ||||||||
| Entry status | Reviewed (UniProtKB/Swiss-Prot) | ||||||||
| Annotation project | Drosophila annotation project | ||||||||
Relevant documents
| Drosophila Drosophila: entries, gene names and cross-references to FlyBase |
| Translation initiation factors List of translation initiation factor entries |
| UniProtKB secondary accession numbers Index of UniProtKB secondary accession numbers |
| SIMILARITY comments Index of protein domains and families |

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