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UniProtKB - Q5U0F4 (Q5U0F4_HUMAN)

Entry version 128 (19 Jan 2022)
Sequence version 1 (05 Feb 2008)
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Protein

Eukaryotic translation initiation factor 3 subunit I

Gene

EIF3S2

Organism
Homo sapiens (Human)
Status
Unreviewed-Annotation score:

Annotation score:3 out of 5

<p>The annotation score provides a heuristic measure of the annotation content of a UniProtKB entry or proteome. This score <strong>cannot</strong> be used as a measure of the accuracy of the annotation as we cannot define the 'correct annotation' for any given protein.<p><a href='/help/annotation_score' target='_top'>More...</a></p>-Experimental evidence at transcript leveli <p>This indicates the type of evidence that supports the existence of the protein. Note that the 'protein existence' evidence does not give information on the accuracy or correctness of the sequence(s) displayed.<p><a href='/help/protein_existence' target='_top'>More...</a></p>

<p>This section provides any useful information about the protein, mostly biological knowledge.<p><a href='/help/function_section' target='_top'>More...</a></p>Functioni

Component of the eukaryotic translation initiation factor 3 (eIF-3) complex, which is required for several steps in the initiation of protein synthesis. The eIF-3 complex associates with the 40S ribosome and facilitates the recruitment of eIF-1, eIF-1A, eIF-2:GTP:methionyl-tRNAi and eIF-5 to form the 43S pre-initiation complex (43S PIC). The eIF-3 complex stimulates mRNA recruitment to the 43S PIC and scanning of the mRNA for AUG recognition. The eIF-3 complex is also required for disassembly and recycling of post-termination ribosomal complexes and subsequently prevents premature joining of the 40S and 60S ribosomal subunits prior to initiation. The eIF-3 complex specifically targets and initiates translation of a subset of mRNAs involved in cell proliferation, including cell cycling, differentiation and apoptosis, and uses different modes of RNA stem-loop binding to exert either translational activation or repression.

UniRule annotation

<p>The <a href="http://www.geneontology.org/">Gene Ontology (GO)</a> project provides a set of hierarchical controlled vocabulary split into 3 categories:<p><a href='/help/gene_ontology' target='_top'>More...</a></p>GO - Molecular functioni

Complete GO annotation on QuickGO ...

GO - Biological processi

Complete GO annotation on QuickGO ...

<p>UniProtKB Keywords constitute a <a href="http://www.uniprot.org/keywords">controlled vocabulary</a> with a hierarchical structure. Keywords summarise the content of a UniProtKB entry and facilitate the search for proteins of interest.<p><a href='/help/keywords' target='_top'>More...</a></p>Keywordsi

Molecular functionInitiation factorUniRule annotationARBA annotation
Biological processProtein biosynthesis

<p>This section provides information about the protein and gene name(s) and synonym(s) and about the organism that is the source of the protein sequence.<p><a href='/help/names_and_taxonomy_section' target='_top'>More...</a></p>Names & Taxonomyi

<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">Names and taxonomy</a> section provides an exhaustive list of all names of the protein, from commonly used to obsolete, to allow unambiguous identification of a protein.<p><a href='/help/protein_names' target='_top'>More...</a></p>Protein namesi
Recommended name:
Eukaryotic translation initiation factor 3 subunit IUniRule annotation
Short name:
eIF3iUniRule annotation
Alternative name(s):
Eukaryotic translation initiation factor 3 subunit 2UniRule annotation
eIF-3-betaUniRule annotation
eIF3 p36UniRule annotation
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">Names and taxonomy</a> section indicates the name(s) of the gene(s) that code for the protein sequence(s) described in the entry. Four distinct tokens exist: 'Name', 'Synonyms', 'Ordered locus names' and 'ORF names'.<p><a href='/help/gene_name' target='_top'>More...</a></p>Gene namesi
Name:EIF3S2UniRule annotationImported
Synonyms:EIF3IUniRule annotation
ORF Names:hCG_41608Imported
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">Names and taxonomy</a> section provides information on the name(s) of the organism that is the source of the protein sequence.<p><a href='/help/organism-name' target='_top'>More...</a></p>OrganismiHomo sapiens (Human)Imported
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">Names and taxonomy</a> section shows the unique identifier assigned by the NCBI to the source organism of the protein. This is known as the 'taxonomic identifier' or 'taxid'.<p><a href='/help/taxonomic_identifier' target='_top'>More...</a></p>Taxonomic identifieri9606 [NCBI]
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">Names and taxonomy</a> section contains the taxonomic hierarchical classification lineage of the source organism. It lists the nodes as they appear top-down in the taxonomic tree, with the more general grouping listed first.<p><a href='/help/taxonomic_lineage' target='_top'>More...</a></p>Taxonomic lineageiEukaryota › Metazoa › Chordata › Craniata › Vertebrata › Euteleostomi › Mammalia › Eutheria › Euarchontoglires › Primates › Haplorrhini › Catarrhini › Hominidae › Homo

Organism-specific databases

Eukaryotic Pathogen, Vector and Host Database Resources

More...VEuPathDBi		HostDB:ENSG00000084623

<p>This section provides information on the location and the topology of the mature protein in the cell.<p><a href='/help/subcellular_location_section' target='_top'>More...</a></p>Subcellular locationi

Keywords - Cellular componenti

CytoplasmUniRule annotation

<p>This section provides information on the disease(s) and phenotype(s) associated with a protein.<p><a href='/help/pathology_and_biotech_section' target='_top'>More...</a></p>Pathology & Biotechi

Organism-specific databases

The Pharmacogenetics and Pharmacogenomics Knowledge Base

More...PharmGKBi		PA162384875

<p>This section describes post-translational modifications (PTMs) and/or processing events.<p><a href='/help/ptm_processing_section' target='_top'>More...</a></p>PTM / Processingi

<p>This subsection of the <a href="http://www.uniprot.org/help/ptm%5Fprocessing%5Fsection">PTM/processing</a> section describes post-translational modifications (PTMs). This subsection <strong>complements</strong> the information provided at the sequence level or describes modifications for which <strong>position-specific data is not yet available</strong>.<p><a href='/help/post-translational_modification' target='_top'>More...</a></p>Post-translational modificationi

Phosphorylated by TGF-beta type II receptor.UniRule annotation

Keywords - PTMi

PhosphoproteinUniRule annotation

<p>This section provides information on the expression of a gene at the mRNA or protein level in cells or in tissues of multicellular organisms.<p><a href='/help/expression_section' target='_top'>More...</a></p>Expressioni

Gene expression databases

Bgee dataBase for Gene Expression Evolution

More...Bgeei		ENSG00000084623, Expressed in left adrenal gland and 244 other tissues

<p>This section provides information on the quaternary structure of a protein and on interaction(s) with other proteins or protein complexes.<p><a href='/help/interaction_section' target='_top'>More...</a></p>Interactioni

<p>This subsection of the <a href="http://www.uniprot.org/help/interaction%5Fsection">'Interaction'</a> section provides information about the protein quaternary structure and interaction(s) with other proteins or protein complexes (with the exception of physiological receptor-ligand interactions which are annotated in the <a href="http://www.uniprot.org/help/function%5Fsection">'Function'</a> section).<p><a href='/help/subunit_structure' target='_top'>More...</a></p>Subunit structurei

Component of the eukaryotic translation initiation factor 3 (eIF-3) complex, which is composed of 13 subunits: EIF3A, EIF3B, EIF3C, EIF3D, EIF3E, EIF3F, EIF3G, EIF3H, EIF3I, EIF3J, EIF3K, EIF3L and EIF3M. The eIF-3 complex appears to include 3 stable modules: module A is composed of EIF3A, EIF3B, EIF3G and EIF3I; module B is composed of EIF3F, EIF3H, and EIF3M; and module C is composed of EIF3C, EIF3D, EIF3E, EIF3K and EIF3L. EIF3C of module C binds EIF3B of module A and EIF3H of module B, thereby linking the three modules. EIF3J is a labile subunit that binds to the eIF-3 complex via EIF3B. The eIF-3 complex interacts with RPS6KB1 under conditions of nutrient depletion. Mitogenic stimulation leads to binding and activation of a complex composed of MTOR and RPTOR, leading to phosphorylation and release of RPS6KB1 and binding of EIF4B to eIF-3.

UniRule annotation

Protein-protein interaction databases

Protein interaction database and analysis system

More...IntActi		Q5U0F4, 4 interactors

<p>This section provides information on the tertiary and secondary structure of a protein.<p><a href='/help/structure_section' target='_top'>More...</a></p>Structurei

<p>This section provides information on sequence similarities with other proteins and the domain(s) present in a protein.<p><a href='/help/family_and_domains_section' target='_top'>More...</a></p>Family & Domainsi

Domains and Repeats

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the 'Family and Domains' section indicates the positions and types of repeated sequence motifs or repeated domains within the protein.<p><a href='/help/repeat' target='_top'>More...</a></p>Repeati6 – 47WDPROSITE-ProRule annotationAdd BLAST42
Repeati48 – 89WDPROSITE-ProRule annotationAdd BLAST42
Repeati184 – 225WDPROSITE-ProRule annotationAdd BLAST42
Repeati281 – 311WDPROSITE-ProRule annotationAdd BLAST31

<p>This subsection of the 'Family and domains' section provides information about the sequence similarity with other proteins.<p><a href='/help/sequence_similarities' target='_top'>More...</a></p>Sequence similaritiesi

Belongs to the eIF-3 subunit I family.UniRule annotation

Keywords - Domaini

RepeatARBA annotation, WD repeatPROSITE-ProRule annotationARBA annotation

Phylogenomic databases

The HOGENOM Database of Homologous Genes from Fully Sequenced Organisms

More...HOGENOMi		CLU_043845_0_0_1

Identification of Orthologs from Complete Genome Data

More...OMAi		ITPKKDF

Database of Orthologous Groups

More...OrthoDBi		866359at2759

Family and domain databases

Gene3D Structural and Functional Annotation of Protein Families

More...Gene3Di		2.130.10.10, 1 hit

HAMAP database of protein families

More...HAMAPi		MF_03008, eIF3i, 1 hit

Integrated resource of protein families, domains and functional sites

More...InterProi		View protein in InterPro
IPR027525, eIF3i
IPR015943, WD40/YVTN_repeat-like_dom_sf
IPR001680, WD40_repeat
IPR019775, WD40_repeat_CS
IPR036322, WD40_repeat_dom_sf

Pfam protein domain database

More...Pfami		View protein in Pfam
PF00400, WD40, 3 hits

Simple Modular Architecture Research Tool; a protein domain database

More...SMARTi		View protein in SMART
SM00320, WD40, 5 hits

Superfamily database of structural and functional annotation

More...SUPFAMi		SSF50978, SSF50978, 1 hit

PROSITE; a protein domain and family database

More...PROSITEi		View protein in PROSITE
PS00678, WD_REPEATS_1, 1 hit
PS50082, WD_REPEATS_2, 4 hits

<p>This section displays by default the canonical protein sequence and upon request all isoforms described in the entry. It also includes information pertinent to the sequence(s), including <a href="http://www.uniprot.org/help/sequence%5Flength">length</a> and <a href="http://www.uniprot.org/help/sequences">molecular weight</a>. The information is filed in different subsections. The current subsections and their content are listed below:<p><a href='/help/sequences_section' target='_top'>More...</a></p>Sequencei

<p>This subsection of the <a href="http://www.uniprot.org/help/sequences%5Fsection">Sequence</a> section indicates if the <a href="http://www.uniprot.org/help/canonical%5Fand%5Fisoforms">canonical sequence</a> displayed by default in the entry is complete or not.<p><a href='/help/sequence_status' target='_top'>More...</a></p>Sequence statusi: Complete.

Q5U0F4-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MKPILLQGHE RSITQIKYNR EGDLLFTVAK DPIVNVWYSV NGERLGTYMG 
        60         70         80         90        100
HTGAVWCVDA DWDTKHVLTG SADNSCRLWD CETGKQLALL KTNSAVRTCG 
       110        120        130        140        150
FDFGGNIIMF STDKQMGYQC FVSFFDLRDP SQIDNNEPYM KIPCNDSKIT 
       160        170        180        190        200
SAVWGPLGEC IIAGHESGEL NQYSAKSGEV LVNVKEHSRQ INDIQLSRDM 
       210        220        230        240        250
TMFVTASKDN TAKLFDSTTL EHQKTFRTER PVNSAALSPN YDHVVLGGGQ 
       260        270        280        290        300
EAMDVTTTST RIGKFEARFF HLAFEEEFGR VKGHFGPINS VAFHPDGKSY 
       310        320 
SSGGEDGYVR IHYFDPQYFE FEFEA
Length:325
Mass (Da):36,502
Last modified:February 5, 2008 - v1
<p>The checksum is a form of redundancy check that is calculated from the sequence. It is useful for tracking sequence updates.</p> <p>It should be noted that while, in theory, two different sequences could have the same checksum value, the likelihood that this would happen is extremely low.</p> <p>However UniProtKB may contain entries with identical sequences in case of multiple genes (paralogs).</p> <p>The checksum is computed as the sequence 64-bit Cyclic Redundancy Check value (CRC64) using the generator polynomial: x<sup>64</sup> + x<sup>4</sup> + x<sup>3</sup> + x + 1. The algorithm is described in the ISO 3309 standard. </p> <p class="publication">Press W.H., Flannery B.P., Teukolsky S.A. and Vetterling W.T.<br /> <strong>Cyclic redundancy and other checksums</strong><br /> <a href="http://www.nrbook.com/b/bookcpdf.php">Numerical recipes in C 2nd ed., pp896-902, Cambridge University Press (1993)</a>)</p> Checksum:i02797BB72A752A96
GO

Sequence databases

Select the link destinations:

EMBL nucleotide sequence database

More...EMBLi

GenBank nucleotide sequence database

More...GenBanki

DNA Data Bank of Japan; a nucleotide sequence database

More...DDBJi
Links Updated
BT019597 mRNA Translation: AAV38404.1
AK289356 mRNA Translation: BAF82045.1
AK289882 mRNA Translation: BAF82571.1
CH471059 Genomic DNA Translation: EAX07553.1

NCBI Reference Sequences

More...RefSeqi		NP_003748.1, NM_003757.3

Genome annotation databases

Database of genes from NCBI RefSeq genomes

More...GeneIDi		8668

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...KEGGi		hsa:8668

UCSC genome browser

More...UCSCi		uc009vuc.4, human

<p>This section provides links to proteins that are similar to the protein sequence(s) described in this entry at different levels of sequence identity thresholds (100%, 90% and 50%) based on their membership in UniProt Reference Clusters (<a href="http://www.uniprot.org/help/uniref">UniRef</a>).<p><a href='/help/similar_proteins_section' target='_top'>More...</a></p>Similar proteinsi

<p>This section is used to point to information related to entries and found in data collections other than UniProtKB.<p><a href='/help/cross_references_section' target='_top'>More...</a></p>Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
BT019597 mRNA Translation: AAV38404.1
AK289356 mRNA Translation: BAF82045.1
AK289882 mRNA Translation: BAF82571.1
CH471059 Genomic DNA Translation: EAX07553.1
RefSeqiNP_003748.1, NM_003757.3

3D structure databases

Database of comparative protein structure models

More...ModBasei		Search...

SWISS-MODEL Interactive Workspace

More...SWISS-MODEL-Workspacei		Submit a new modelling project...

Protein-protein interaction databases

IntActiQ5U0F4, 4 interactors

Protocols and materials databases

Antibodypedia a portal for validated antibodies

More...Antibodypediai		31260, 176 antibodies from 27 providers

The DNASU plasmid repository

More...DNASUi		8668

Genome annotation databases

GeneIDi8668
KEGGihsa:8668
UCSCiuc009vuc.4, human

Organism-specific databases

Comparative Toxicogenomics Database

More...CTDi		8668
PharmGKBiPA162384875
VEuPathDBiHostDB:ENSG00000084623

Phylogenomic databases

HOGENOMiCLU_043845_0_0_1
OMAiITPKKDF
OrthoDBi866359at2759

Miscellaneous databases

BioGRID ORCS database of CRISPR phenotype screens

More...BioGRID-ORCSi		8668, 800 hits in 1024 CRISPR screens

ChiTaRS: a database of human, mouse and fruit fly chimeric transcripts and RNA-sequencing data

More...ChiTaRSi		EIF3I, human

Database of phenotypes from RNA interference screens in Drosophila and Homo sapiens

More...GenomeRNAii		8668

Gene expression databases

BgeeiENSG00000084623, Expressed in left adrenal gland and 244 other tissues

Family and domain databases

Gene3Di2.130.10.10, 1 hit
HAMAPiMF_03008, eIF3i, 1 hit
InterProiView protein in InterPro
IPR027525, eIF3i
IPR015943, WD40/YVTN_repeat-like_dom_sf
IPR001680, WD40_repeat
IPR019775, WD40_repeat_CS
IPR036322, WD40_repeat_dom_sf
PfamiView protein in Pfam
PF00400, WD40, 3 hits
SMARTiView protein in SMART
SM00320, WD40, 5 hits
SUPFAMiSSF50978, SSF50978, 1 hit
PROSITEiView protein in PROSITE
PS00678, WD_REPEATS_1, 1 hit
PS50082, WD_REPEATS_2, 4 hits

MobiDB: a database of protein disorder and mobility annotations

More...MobiDBi		Search...

<p>This section provides general information on the entry.<p><a href='/help/entry_information_section' target='_top'>More...</a></p>Entry informationi

<p>This subsection of the 'Entry information' section provides a mnemonic identifier for a UniProtKB entry, but it is not a stable identifier. Each reviewed entry is assigned a unique entry name upon integration into UniProtKB/Swiss-Prot.<p><a href='/help/entry_name' target='_top'>More...</a></p>Entry nameiQ5U0F4_HUMAN
<p>This subsection of the 'Entry information' section provides one or more accession number(s). These are stable identifiers and should be used to cite UniProtKB entries. Upon integration into UniProtKB, each entry is assigned a unique accession number, which is called 'Primary (citable) accession number'.<p><a href='/help/accession_numbers' target='_top'>More...</a></p>AccessioniPrimary (citable) accession number: Q5U0F4
<p>This subsection of the 'Entry information' section shows the date of integration of the entry into UniProtKB, the date of the last sequence update and the date of the last annotation modification ('Last modified'). The version number for both the entry and the <a href="http://www.uniprot.org/help/canonical%5Fand%5Fisoforms">canonical sequence</a> are also displayed.<p><a href='/help/entry_history' target='_top'>More...</a></p>Entry historyiIntegrated into UniProtKB/TrEMBL: February 5, 2008
Last sequence update: February 5, 2008
Last modified: January 19, 2022
This is version 128 of the entry and version 1 of the sequence. See complete history.
<p>This subsection of the 'Entry information' section indicates whether the entry has been manually annotated and reviewed by UniProtKB curators or not, in other words, if the entry belongs to the Swiss-Prot section of UniProtKB (<strong>reviewed</strong>) or to the computer-annotated TrEMBL section (<strong>unreviewed</strong>).<p><a href='/help/entry_status' target='_top'>More...</a></p>Entry statusiUnreviewed (UniProtKB/TrEMBL)
DisclaimerAny 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.
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