ID   EIF3K_XENTR             Reviewed;         218 AA.
AC   Q28C65; Q5HZD6;
DT   03-MAR-2009, integrated into UniProtKB/Swiss-Prot.
DT   04-APR-2006, sequence version 1.
DT   03-AUG-2022, entry version 80.
DE   RecName: Full=Eukaryotic translation initiation factor 3 subunit K {ECO:0000255|HAMAP-Rule:MF_03010};
DE            Short=eIF3k {ECO:0000255|HAMAP-Rule:MF_03010};
DE   AltName: Full=Eukaryotic translation initiation factor 3 subunit 12 {ECO:0000255|HAMAP-Rule:MF_03010};
DE   AltName: Full=eIF-3 p25 {ECO:0000255|HAMAP-Rule:MF_03010};
GN   Name=eif3k; Synonyms=eif3s12; ORFNames=TTpA007f24.1;
OS   Xenopus tropicalis (Western clawed frog) (Silurana tropicalis).
OC   Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Amphibia;
OC   Batrachia; Anura; Pipoidea; Pipidae; Xenopodinae; Xenopus; Silurana.
OX   NCBI_TaxID=8364;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA].
RC   TISSUE=Tadpole;
RG   Sanger Xenopus tropicalis EST/cDNA project;
RL   Submitted (OCT-2006) to the EMBL/GenBank/DDBJ databases.
RN   [2]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA].
RC   STRAIN=PopA;
RG   NIH - Xenopus Gene Collection (XGC) project;
RL   Submitted (DEC-2007) to the EMBL/GenBank/DDBJ databases.
CC   -!- FUNCTION: Component of the eukaryotic translation initiation factor 3
CC       (eIF-3) complex, which is involved in protein synthesis of a
CC       specialized repertoire of mRNAs and, together with other initiation
CC       factors, stimulates binding of mRNA and methionyl-tRNAi to the 40S
CC       ribosome. The eIF-3 complex specifically targets and initiates
CC       translation of a subset of mRNAs involved in cell proliferation.
CC       {ECO:0000255|HAMAP-Rule:MF_03010}.
CC   -!- SUBUNIT: Component of the eukaryotic translation initiation factor 3
CC       (eIF-3) complex, which is composed of 13 subunits: eif3a, eif3b, eif3c,
CC       eif3d, eif3e, eif3f, eif3g, eif3h, eif3i, eif3j, eif3k, eif3l and
CC       eif3m. {ECO:0000255|HAMAP-Rule:MF_03010}.
CC   -!- SUBCELLULAR LOCATION: Nucleus {ECO:0000255|HAMAP-Rule:MF_03010}.
CC       Cytoplasm {ECO:0000255|HAMAP-Rule:MF_03010}.
CC   -!- SIMILARITY: Belongs to the eIF-3 subunit K family. {ECO:0000255|HAMAP-
CC       Rule:MF_03010}.
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DR   EMBL; CR942432; CAJ83157.1; -; mRNA.
DR   EMBL; BC089069; AAH89069.1; -; mRNA.
DR   EMBL; BC157542; AAI57543.1; -; mRNA.
DR   RefSeq; NP_001165760.1; NM_001172289.2.
DR   AlphaFoldDB; Q28C65; -.
DR   SMR; Q28C65; -.
DR   STRING; 8364.ENSXETP00000048386; -.
DR   GeneID; 548352; -.
DR   KEGG; xtr:548352; -.
DR   CTD; 27335; -.
DR   Xenbase; XB-GENE-992842; eif3k.
DR   InParanoid; Q28C65; -.
DR   OrthoDB; 1576799at2759; -.
DR   Reactome; R-XTR-156827; L13a-mediated translational silencing of Ceruloplasmin expression.
DR   Reactome; R-XTR-72649; Translation initiation complex formation.
DR   Reactome; R-XTR-72689; Formation of a pool of free 40S subunits.
DR   Reactome; R-XTR-72702; Ribosomal scanning and start codon recognition.
DR   Proteomes; UP000008143; Chromosome 8.
DR   Proteomes; UP000790000; Unplaced.
DR   Bgee; ENSXETG00000024723; Expressed in heart and 25 other tissues.
DR   GO; GO:0016282; C:eukaryotic 43S preinitiation complex; IEA:UniProtKB-UniRule.
DR   GO; GO:0033290; C:eukaryotic 48S preinitiation complex; IEA:UniProtKB-UniRule.
DR   GO; GO:0005852; C:eukaryotic translation initiation factor 3 complex; ISS:UniProtKB.
DR   GO; GO:0005634; C:nucleus; IEA:UniProtKB-SubCell.
DR   GO; GO:0043022; F:ribosome binding; IEA:InterPro.
DR   GO; GO:0003723; F:RNA binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0003743; F:translation initiation factor activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0001732; P:formation of cytoplasmic translation initiation complex; IEA:UniProtKB-UniRule.
DR   GO; GO:0006446; P:regulation of translational initiation; IEA:InterPro.
DR   GO; GO:0006413; P:translational initiation; ISS:UniProtKB.
DR   Gene3D; 1.10.10.10; -; 1.
DR   Gene3D; 1.25.40.250; -; 1.
DR   HAMAP; MF_03010; eIF3k; 1.
DR   InterPro; IPR016024; ARM-type_fold.
DR   InterPro; IPR033464; CSN8_PSD8_EIF3K.
DR   InterPro; IPR009374; eIF3k.
DR   InterPro; IPR000717; PCI_dom.
DR   InterPro; IPR016020; Transl_init_fac_sub12_N_euk.
DR   InterPro; IPR036388; WH-like_DNA-bd_sf.
DR   InterPro; IPR036390; WH_DNA-bd_sf.
DR   PANTHER; PTHR13022; PTHR13022; 1.
DR   Pfam; PF10075; CSN8_PSD8_EIF3K; 1.
DR   SUPFAM; SSF46785; SSF46785; 1.
DR   SUPFAM; SSF48371; SSF48371; 1.
DR   PROSITE; PS50250; PCI; 1.
PE   2: Evidence at transcript level;
KW   Cytoplasm; Initiation factor; Nucleus; Protein biosynthesis;
KW   Reference proteome.
FT   CHAIN           1..218
FT                   /note="Eukaryotic translation initiation factor 3 subunit
FT                   K"
FT                   /id="PRO_0000365033"
FT   DOMAIN          42..204
FT                   /note="PCI"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU01185"
SQ   SEQUENCE   218 AA;  25177 MW;  7FE2C0DC4BD7BE6F CRC64;
     MASFDQMRAN VGKLLRGIDR YNPENLATLE RYVETQAKEN AYDLEANLAV LKLYQFNPAF
     FQTTVTAQIL LKALTNLPHT DFTLCKCMID QAHQEERPIR QILYLGDLLE TCHFQSFWQA
     LDENLDLIDG ITGFEDSVRK FICHVVGITY QHIDRWLLAE MLGDLSEPQL RVWMSKYGWM
     ESENGKIFVC NQEENIKPKN IVEKIDFDSV SGIMASSQ