ID C1MYE0_MICPC Unreviewed; 693 AA.
AC C1MYE0;
DT 26-MAY-2009, integrated into UniProtKB/TrEMBL.
DT 26-MAY-2009, sequence version 1.
DT 27-MAR-2024, entry version 78.
DE RecName: Full=Eukaryotic translation initiation factor 3 subunit B {ECO:0000256|HAMAP-Rule:MF_03001, ECO:0000256|PIRNR:PIRNR036424};
DE Short=eIF3b {ECO:0000256|HAMAP-Rule:MF_03001, ECO:0000256|PIRNR:PIRNR036424};
DE AltName: Full=eIF-3-eta {ECO:0000256|HAMAP-Rule:MF_03001};
DE AltName: Full=eIF3 p110 {ECO:0000256|HAMAP-Rule:MF_03001};
GN ORFNames=MICPUCDRAFT_59878 {ECO:0000313|EMBL:EEH55037.1};
OS Micromonas pusilla (strain CCMP1545) (Picoplanktonic green alga).
OC Eukaryota; Viridiplantae; Chlorophyta; Mamiellophyceae; Mamiellales;
OC Mamiellaceae; Micromonas.
OX NCBI_TaxID=564608 {ECO:0000313|Proteomes:UP000001876};
RN [1] {ECO:0000313|EMBL:EEH55037.1, ECO:0000313|Proteomes:UP000001876}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=CCMP1545 {ECO:0000313|EMBL:EEH55037.1,
RC ECO:0000313|Proteomes:UP000001876};
RX PubMed=19359590; DOI=10.1126/science.1167222;
RA Worden A.Z., Lee J.H., Mock T., Rouze P., Simmons M.P., Aerts A.L.,
RA Allen A.E., Cuvelier M.L., Derelle E., Everett M.V., Foulon E.,
RA Grimwood J., Gundlach H., Henrissat B., Napoli C., McDonald S.M.,
RA Parker M.S., Rombauts S., Salamov A., Von Dassow P., Badger J.H.,
RA Coutinho P.M., Demir E., Dubchak I., Gentemann C., Eikrem W., Gready J.E.,
RA John U., Lanier W., Lindquist E.A., Lucas S., Mayer K.F., Moreau H.,
RA Not F., Otillar R., Panaud O., Pangilinan J., Paulsen I., Piegu B.,
RA Poliakov A., Robbens S., Schmutz J., Toulza E., Wyss T., Zelensky A.,
RA Zhou K., Armbrust E.V., Bhattacharya D., Goodenough U.W., Van de Peer Y.,
RA Grigoriev I.V.;
RT "Green evolution and dynamic adaptations revealed by genomes of the marine
RT picoeukaryotes Micromonas.";
RL Science 324:268-272(2009).
CC -!- FUNCTION: Component of the eukaryotic translation initiation factor 3
CC (eIF-3) complex, which is involved in protein synthesis and, together
CC with other initiation factors, stimulates binding of mRNA and
CC methionyl-tRNAi to the 40S ribosome. {ECO:0000256|PIRNR:PIRNR036424}.
CC -!- FUNCTION: RNA-binding component of the eukaryotic translation
CC initiation factor 3 (eIF-3) complex, which is involved in protein
CC synthesis of a specialized repertoire of mRNAs and, together with other
CC initiation factors, stimulates binding of mRNA and methionyl-tRNAi to
CC the 40S ribosome. The eIF-3 complex specifically targets and initiates
CC translation of a subset of mRNAs involved in cell proliferation.
CC {ECO:0000256|HAMAP-Rule:MF_03001}.
CC -!- SUBUNIT: Component of the eukaryotic translation initiation factor 3
CC (eIF-3) complex. {ECO:0000256|HAMAP-Rule:MF_03001,
CC ECO:0000256|PIRNR:PIRNR036424}.
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000256|HAMAP-Rule:MF_03001,
CC ECO:0000256|PIRNR:PIRNR036424}.
CC -!- SIMILARITY: Belongs to the eIF-3 subunit B family. {ECO:0000256|HAMAP-
CC Rule:MF_03001, ECO:0000256|PIRNR:PIRNR036424}.
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DR EMBL; GG663742; EEH55037.1; -; Genomic_DNA.
DR RefSeq; XP_003060268.1; XM_003060222.1.
DR AlphaFoldDB; C1MYE0; -.
DR STRING; 564608.C1MYE0; -.
DR GeneID; 9685996; -.
DR KEGG; mpp:MICPUCDRAFT_59878; -.
DR eggNOG; KOG2314; Eukaryota.
DR OMA; LWGGPQF; -.
DR OrthoDB; 5479191at2759; -.
DR Proteomes; UP000001876; Unassembled WGS sequence.
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; IEA:UniProtKB-UniRule.
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:0031369; F:translation initiation factor binding; IEA:InterPro.
DR GO; GO:0001732; P:formation of cytoplasmic translation initiation complex; IEA:UniProtKB-UniRule.
DR CDD; cd12278; RRM_eIF3B; 1.
DR Gene3D; 3.30.70.330; -; 1.
DR Gene3D; 2.130.10.10; YVTN repeat-like/Quinoprotein amine dehydrogenase; 2.
DR HAMAP; MF_03001; eIF3b; 1.
DR InterPro; IPR011400; EIF3B.
DR InterPro; IPR034363; eIF3B_RRM.
DR InterPro; IPR012677; Nucleotide-bd_a/b_plait_sf.
DR InterPro; IPR035979; RBD_domain_sf.
DR InterPro; IPR000504; RRM_dom.
DR InterPro; IPR013979; TIF_beta_prop-like.
DR InterPro; IPR015943; WD40/YVTN_repeat-like_dom_sf.
DR PANTHER; PTHR14068; EUKARYOTIC TRANSLATION INITIATION FACTOR 3 EIF3 -RELATED; 1.
DR PANTHER; PTHR14068:SF0; EUKARYOTIC TRANSLATION INITIATION FACTOR 3 SUBUNIT B; 1.
DR Pfam; PF08662; eIF2A; 1.
DR Pfam; PF00076; RRM_1; 1.
DR PIRSF; PIRSF036424; eIF3b; 1.
DR SUPFAM; SSF82171; DPP6 N-terminal domain-like; 1.
DR SUPFAM; SSF54928; RNA-binding domain, RBD; 1.
DR PROSITE; PS50102; RRM; 1.
PE 3: Inferred from homology;
KW Cytoplasm {ECO:0000256|HAMAP-Rule:MF_03001, ECO:0000256|PIRNR:PIRNR036424};
KW Initiation factor {ECO:0000256|HAMAP-Rule:MF_03001,
KW ECO:0000256|PIRNR:PIRNR036424};
KW Protein biosynthesis {ECO:0000256|HAMAP-Rule:MF_03001,
KW ECO:0000256|PIRNR:PIRNR036424};
KW Reference proteome {ECO:0000313|Proteomes:UP000001876};
KW RNA-binding {ECO:0000256|ARBA:ARBA00022884, ECO:0000256|HAMAP-
KW Rule:MF_03001}.
FT DOMAIN 45..123
FT /note="RRM"
FT /evidence="ECO:0000259|PROSITE:PS50102"
SQ SEQUENCE 693 AA; 78512 MW; 079722AE468136BA CRC64;
MDGYVEWDKV DVAKIALPPG DDMGVVSDDD DVNVEEVKMD SGFGSVVVVD NLPKVPKAKH
EKLATIGTVA EGGLHMPADA DGVTKGFAFV EFLNSQEADA ARQQTDGYKL DKAHVFKVSR
FDDFAKYDAV PDQYEEPKPK PYVARENTQD YMLDARGRDQ YAIRFGDETE IHWNDAQKKE
PVEVYKRSFW TESYVQWSPR GNFLATVHRQ GVALWGGASW QRYQKFSHNG VQFIEFSPCE
RYLASGSTHE GGGDTSVVVN FFDTRSGAKL RNFQGPISDF VVHAAGSRGG LTWPVFKWAG
PSPEGAFFAR MGNNAVSVYS APDMSLLGKK SIKLEGVIDF CWSPADPILS VFQPERGGGN
EPARVALISI PSKKEIRSKN LFSVSDVKMF WQQSGDYFAM KVDRHTKSKK STYSGFELFR
VKEPDCPMEV LELPDKNEKI VAFAWEPKGH RFAVIHGDGA RPNVSFYTMI DDASAINKVK
LIGTLKNKTA NHLFWSPQGK TIVLAGLKTM NGQFEFFNVD EMETMASAEH FMATDVEWDP
TGRYVATAVT SVHQMENGFH VWTFNGRQLY KHGRERFYQF LWRPRAPSLL PPEKEAEIAK
NLKKYSKKFE ELDDSIRSEQ DSHLAAEKRA VMDEWKRWKQ AKTEMLESEE HRAKIRKIMT
ARYPNWREGG GEDVVETKVD MEEIIEVVEE PLR
//
