ID A0A0S6VXT0_9BACT Unreviewed; 636 AA.
AC A0A0S6VXT0;
DT 17-FEB-2016, integrated into UniProtKB/TrEMBL.
DT 17-FEB-2016, sequence version 1.
DT 28-JAN-2026, entry version 34.
DE RecName: Full=Selenocysteine-specific elongation factor {ECO:0000256|ARBA:ARBA00015953};
DE AltName: Full=SelB translation factor {ECO:0000256|ARBA:ARBA00031615};
GN ORFNames=U14_01965 {ECO:0000313|EMBL:GAK50732.1};
OS Candidatus Moduliflexus flocculans.
OC Bacteria; Candidatus Moduliflexota; Candidatus Moduliflexia;
OC Candidatus Moduliflexales; Candidatus Moduliflexaceae.
OX NCBI_TaxID=1499966 {ECO:0000313|EMBL:GAK50732.1};
RN [1] {ECO:0000313|EMBL:GAK50732.1}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RA Sekiguchi Y., Ohashi A., Parks D.H., Yamauchi T., Tyson G.W.,
RA Hugenholtz P.;
RT "First genomic representation of candidate bacterial phylum KSB3 points to
RT enhanced environmental sensing as a trigger of wastewater bulking.";
RL PeerJ 3:e740-e740(2015).
CC -!- FUNCTION: Translation factor necessary for the incorporation of
CC selenocysteine into proteins. It probably replaces EF-Tu for the
CC insertion of selenocysteine directed by the UGA codon. SelB binds GTP
CC and GDP. {ECO:0000256|ARBA:ARBA00025526}.
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000256|ARBA:ARBA00004496}.
CC ---------------------------------------------------------------------------
CC Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms
CC Distributed under the Creative Commons Attribution (CC BY 4.0) License
CC ---------------------------------------------------------------------------
DR EMBL; DF820456; GAK50732.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A0S6VXT0; -.
DR STRING; 1499966.U14_01965; -.
DR HOGENOM; CLU_023030_3_0_0; -.
DR Proteomes; UP000030700; Unassembled WGS sequence.
DR GO; GO:0005829; C:cytosol; IEA:TreeGrafter.
DR GO; GO:0005525; F:GTP binding; IEA:UniProtKB-KW.
DR GO; GO:0003924; F:GTPase activity; IEA:InterPro.
DR GO; GO:0003723; F:RNA binding; IEA:InterPro.
DR GO; GO:0003746; F:translation elongation factor activity; IEA:UniProtKB-KW.
DR GO; GO:0001514; P:selenocysteine incorporation; IEA:InterPro.
DR CDD; cd04171; SelB; 1.
DR CDD; cd03696; SelB_II; 1.
DR CDD; cd15491; selB_III; 1.
DR FunFam; 3.40.50.300:FF:001064; Selenocysteine-specific translation elongation factor; 1.
DR Gene3D; 1.10.10.2770; -; 1.
DR Gene3D; 3.40.50.300; P-loop containing nucleotide triphosphate hydrolases; 1.
DR Gene3D; 2.40.30.10; Translation factors; 1.
DR Gene3D; 1.10.10.10; Winged helix-like DNA-binding domain superfamily/Winged helix DNA-binding domain; 1.
DR InterPro; IPR057335; Beta-barrel_SelB.
DR InterPro; IPR050055; EF-Tu_GTPase.
DR InterPro; IPR004161; EFTu-like_2.
DR InterPro; IPR015190; Elong_fac_SelB-wing-hlx_typ-2.
DR InterPro; IPR031157; G_TR_CS.
DR InterPro; IPR027417; P-loop_NTPase.
DR InterPro; IPR015191; SelB_WHD4.
DR InterPro; IPR005225; Small_GTP-bd.
DR InterPro; IPR000795; T_Tr_GTP-bd_dom.
DR InterPro; IPR009000; Transl_B-barrel_sf.
DR InterPro; IPR009001; Transl_elong_EF1A/Init_IF2_C.
DR InterPro; IPR004535; Transl_elong_SelB.
DR InterPro; IPR036388; WH-like_DNA-bd_sf.
DR InterPro; IPR036390; WH_DNA-bd_sf.
DR NCBIfam; TIGR00475; selB; 1.
DR NCBIfam; TIGR00231; small_GTP; 1.
DR PANTHER; PTHR43721:SF22; ELONGATION FACTOR TU, MITOCHONDRIAL; 1.
DR PANTHER; PTHR43721; ELONGATION FACTOR TU-RELATED; 1.
DR Pfam; PF25461; Beta-barrel_SelB; 1.
DR Pfam; PF00009; GTP_EFTU; 1.
DR Pfam; PF03144; GTP_EFTU_D2; 1.
DR Pfam; PF09106; WHD_2nd_SelB; 1.
DR Pfam; PF09107; WHD_3rd_SelB; 1.
DR PRINTS; PR00315; ELONGATNFCT.
DR SUPFAM; SSF50465; EF-Tu/eEF-1alpha/eIF2-gamma C-terminal domain; 1.
DR SUPFAM; SSF52540; P-loop containing nucleoside triphosphate hydrolases; 1.
DR SUPFAM; SSF50447; Translation proteins; 1.
DR SUPFAM; SSF46785; Winged helix' DNA-binding domain; 3.
DR PROSITE; PS00301; G_TR_1; 1.
DR PROSITE; PS51722; G_TR_2; 1.
PE 4: Predicted;
KW Cytoplasm {ECO:0000256|ARBA:ARBA00022490};
KW Elongation factor {ECO:0000313|EMBL:GAK50732.1};
KW GTP-binding {ECO:0000256|ARBA:ARBA00023134};
KW Nucleotide-binding {ECO:0000256|ARBA:ARBA00022741};
KW Protein biosynthesis {ECO:0000256|ARBA:ARBA00022917};
KW Reference proteome {ECO:0000313|Proteomes:UP000030700}.
FT DOMAIN 1..173
FT /note="Tr-type G"
FT /evidence="ECO:0000259|PROSITE:PS51722"
SQ SEQUENCE 636 AA; 70942 MW; 80DF686883CF18FE CRC64;
MKHIIIGTAG HIDHGKTALV KALTGTDTDR LKEEQQRGIT IDIGFAFLAL PNDIEAGIID
VPGHEKFVKN MLAGIGGIDI AILVIAADEG IMPQTEEHLA ICDLLQIPRG VVALTKTDLV
EAEWLEMVTE EVREGLRGTF LQDAPIVPVS SKTGDGLDIL RNALSDAAAQ VQERGADGIL
RLPIDRVFTI KGFGTVVTGT LISGVAEQEQ PVEILPERIV TRVRNIQVHD APVERAFAGQ
RTAINLHSVE KQAIERGNVL SVPGLLTPTY MLDAYLKLTP KASHPLKYRS RVRLHHGTSE
ILARVILFDR EELLPGESAY VQFRCETPLI ALARDRYIIR SYSPVITIGG GEILYLHPGK
HKRSSAPVAQ MKTLHTGQFA DIVAHYVEDA EFAPISAGRI AGLIAMPPAR IKEEIERLRQ
QGVIIAVPGQ SDDVIHASHY QRARQELQRH VEEFHAQFPL KSGITREELR KKLPDALPQS
LFQRMLDELS AEGALEVEQN LIRRQAHRIH LTPRQQQIKE KLEQRYLEAR FQPPNKKDAL
QDIGAPDKEG EAMFSVLLTE KTLIRIEDDL YYHQKVFADM TAQIIEYLKQ HQEISIGDVK
NLFDISRKYS VPVMAYLDAG QITLRKGDLR VLRGDA
//
