ID H0ZGK2_TAEGU Unreviewed; 486 AA.
AC H0ZGK2;
DT 22-FEB-2012, integrated into UniProtKB/TrEMBL.
DT 17-JUN-2020, sequence version 2.
DT 27-MAR-2024, entry version 61.
DE RecName: Full=O-phosphoseryl-tRNA(Sec) selenium transferase {ECO:0000256|ARBA:ARBA00021963, ECO:0000256|PIRNR:PIRNR017689};
DE EC=2.9.1.2 {ECO:0000256|ARBA:ARBA00012464, ECO:0000256|PIRNR:PIRNR017689};
DE AltName: Full=Selenocysteine synthase {ECO:0000256|ARBA:ARBA00030669, ECO:0000256|PIRNR:PIRNR017689};
DE AltName: Full=Selenocysteinyl-tRNA(Sec) synthase {ECO:0000256|ARBA:ARBA00032048, ECO:0000256|PIRNR:PIRNR017689};
DE AltName: Full=Sep-tRNA:Sec-tRNA synthase {ECO:0000256|ARBA:ARBA00032693, ECO:0000256|PIRNR:PIRNR017689};
GN Name=SEPSECS {ECO:0000313|Ensembl:ENSTGUP00000009714.2};
OS Taeniopygia guttata (Zebra finch) (Poephila guttata).
OC Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi;
OC Archelosauria; Archosauria; Dinosauria; Saurischia; Theropoda;
OC Coelurosauria; Aves; Neognathae; Passeriformes; Passeroidea; Estrildidae;
OC Estrildinae; Taeniopygia.
OX NCBI_TaxID=59729 {ECO:0000313|Ensembl:ENSTGUP00000009714.2, ECO:0000313|Proteomes:UP000007754};
RN [1] {ECO:0000313|Ensembl:ENSTGUP00000009714.2, ECO:0000313|Proteomes:UP000007754}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RX PubMed=20360741; DOI=10.1038/nature08819;
RA Warren W.C., Clayton D.F., Ellegren H., Arnold A.P., Hillier L.W.,
RA Kunstner A., Searle S., White S., Vilella A.J., Fairley S., Heger A.,
RA Kong L., Ponting C.P., Jarvis E.D., Mello C.V., Minx P., Lovell P.,
RA Velho T.A., Ferris M., Balakrishnan C.N., Sinha S., Blatti C., London S.E.,
RA Li Y., Lin Y.C., George J., Sweedler J., Southey B., Gunaratne P.,
RA Watson M., Nam K., Backstrom N., Smeds L., Nabholz B., Itoh Y., Whitney O.,
RA Pfenning A.R., Howard J., Volker M., Skinner B.M., Griffin D.K., Ye L.,
RA McLaren W.M., Flicek P., Quesada V., Velasco G., Lopez-Otin C.,
RA Puente X.S., Olender T., Lancet D., Smit A.F., Hubley R., Konkel M.K.,
RA Walker J.A., Batzer M.A., Gu W., Pollock D.D., Chen L., Cheng Z.,
RA Eichler E.E., Stapley J., Slate J., Ekblom R., Birkhead T., Burke T.,
RA Burt D., Scharff C., Adam I., Richard H., Sultan M., Soldatov A.,
RA Lehrach H., Edwards S.V., Yang S.P., Li X., Graves T., Fulton L.,
RA Nelson J., Chinwalla A., Hou S., Mardis E.R., Wilson R.K.;
RT "The genome of a songbird.";
RL Nature 464:757-762(2010).
RN [2] {ECO:0000313|Ensembl:ENSTGUP00000009714.2}
RP IDENTIFICATION.
RG Ensembl;
RL Submitted (NOV-2023) to UniProtKB.
CC -!- FUNCTION: Converts O-phosphoseryl-tRNA(Sec) to selenocysteinyl-
CC tRNA(Sec) required for selenoprotein biosynthesis.
CC {ECO:0000256|ARBA:ARBA00002552, ECO:0000256|PIRNR:PIRNR017689}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=H2O + O-phospho-L-seryl-tRNA(Sec) + selenophosphate = L-
CC selenocysteinyl-tRNA(Sec) + 2 phosphate; Xref=Rhea:RHEA:25041,
CC Rhea:RHEA-COMP:9743, Rhea:RHEA-COMP:9947, ChEBI:CHEBI:15377,
CC ChEBI:CHEBI:16144, ChEBI:CHEBI:43474, ChEBI:CHEBI:78551,
CC ChEBI:CHEBI:78573; EC=2.9.1.2;
CC Evidence={ECO:0000256|ARBA:ARBA00001746,
CC ECO:0000256|PIRNR:PIRNR017689};
CC -!- COFACTOR:
CC Name=pyridoxal 5'-phosphate; Xref=ChEBI:CHEBI:597326;
CC Evidence={ECO:0000256|ARBA:ARBA00001933,
CC ECO:0000256|PIRNR:PIRNR017689, ECO:0000256|PIRSR:PIRSR017689-50};
CC -!- PATHWAY: Aminoacyl-tRNA biosynthesis; selenocysteinyl-tRNA(Sec)
CC biosynthesis; selenocysteinyl-tRNA(Sec) from L-seryl-tRNA(Sec)
CC (archaeal/eukaryal route): step 2/2. {ECO:0000256|ARBA:ARBA00004822,
CC ECO:0000256|PIRNR:PIRNR017689}.
CC -!- SUBUNIT: Homotetramer formed by a catalytic dimer and a non-catalytic
CC dimer serving as a binding platform that orients tRNASec for catalysis.
CC Each tetramer binds the CCA ends of two tRNAs which point to the active
CC sites of the catalytic dimer. {ECO:0000256|ARBA:ARBA00026053}.
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000256|PIRNR:PIRNR017689}.
CC -!- SIMILARITY: Belongs to the SepSecS family.
CC {ECO:0000256|ARBA:ARBA00007037, ECO:0000256|PIRNR:PIRNR017689}.
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DR AlphaFoldDB; H0ZGK2; -.
DR STRING; 59729.ENSTGUP00000009714; -.
DR Ensembl; ENSTGUT00000009820.2; ENSTGUP00000009714.2; ENSTGUG00000009417.2.
DR GeneTree; ENSGT00390000007332; -.
DR HOGENOM; CLU_022508_0_0_1; -.
DR InParanoid; H0ZGK2; -.
DR OMA; MSHANDY; -.
DR OrthoDB; 121300at2759; -.
DR TreeFam; TF314381; -.
DR UniPathway; UPA00906; UER00898.
DR Proteomes; UP000007754; Chromosome 4.
DR GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR GO; GO:0005634; C:nucleus; IEA:Ensembl.
DR GO; GO:0098621; F:O-phosphoseryl-tRNA(Sec) selenium transferase activity; IEA:UniProtKB-EC.
DR GO; GO:0000049; F:tRNA binding; IEA:UniProtKB-UniRule.
DR GO; GO:0001717; P:conversion of seryl-tRNAsec to selenocys-tRNAsec; IEA:UniProtKB-UniRule.
DR GO; GO:0001514; P:selenocysteine incorporation; IEA:Ensembl.
DR Gene3D; 3.40.640.10; Type I PLP-dependent aspartate aminotransferase-like (Major domain); 1.
DR InterPro; IPR015424; PyrdxlP-dep_Trfase.
DR InterPro; IPR015421; PyrdxlP-dep_Trfase_major.
DR InterPro; IPR019872; Sec-tRNA_Se_transferase.
DR InterPro; IPR008829; SepSecS/SepCysS.
DR NCBIfam; TIGR03531; selenium_SpcS; 1.
DR PANTHER; PTHR12944:SF2; O-PHOSPHOSERYL-TRNA(SEC) SELENIUM TRANSFERASE; 1.
DR PANTHER; PTHR12944; SOLUBLE LIVER ANTIGEN/LIVER PANCREAS ANTIGEN; 1.
DR Pfam; PF05889; SepSecS; 1.
DR PIRSF; PIRSF017689; SepSecS; 1.
DR SUPFAM; SSF53383; PLP-dependent transferases; 1.
PE 3: Inferred from homology;
KW Cytoplasm {ECO:0000256|PIRNR:PIRNR017689};
KW Protein biosynthesis {ECO:0000256|PIRNR:PIRNR017689};
KW Pyridoxal phosphate {ECO:0000256|PIRNR:PIRNR017689,
KW ECO:0000256|PIRSR:PIRSR017689-50};
KW Reference proteome {ECO:0000313|Proteomes:UP000007754};
KW RNA-binding {ECO:0000256|ARBA:ARBA00022884, ECO:0000256|PIRNR:PIRNR017689};
KW Selenium {ECO:0000256|PIRNR:PIRNR017689};
KW Transferase {ECO:0000256|PIRNR:PIRNR017689};
KW tRNA-binding {ECO:0000256|ARBA:ARBA00022555,
KW ECO:0000256|PIRNR:PIRNR017689}.
FT REGION 467..486
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT BINDING 75
FT /ligand="pyridoxal 5'-phosphate"
FT /ligand_id="ChEBI:CHEBI:597326"
FT /evidence="ECO:0000256|PIRSR:PIRSR017689-1"
FT BINDING 97
FT /ligand="substrate"
FT /evidence="ECO:0000256|PIRSR:PIRSR017689-1"
FT BINDING 98
FT /ligand="substrate"
FT /evidence="ECO:0000256|PIRSR:PIRSR017689-1"
FT BINDING 105
FT /ligand="substrate"
FT /evidence="ECO:0000256|PIRSR:PIRSR017689-1"
FT BINDING 271
FT /ligand="tRNA"
FT /ligand_id="ChEBI:CHEBI:17843"
FT /evidence="ECO:0000256|PIRSR:PIRSR017689-1"
FT BINDING 313
FT /ligand="substrate"
FT /evidence="ECO:0000256|PIRSR:PIRSR017689-1"
FT BINDING 398
FT /ligand="tRNA"
FT /ligand_id="ChEBI:CHEBI:17843"
FT /evidence="ECO:0000256|PIRSR:PIRSR017689-1"
FT BINDING 463
FT /ligand="tRNA"
FT /ligand_id="ChEBI:CHEBI:17843"
FT /evidence="ECO:0000256|PIRSR:PIRSR017689-1"
FT SITE 74
FT /note="May act as a substrate filter by repelling compounds
FT with a negatively charged alpha-carboxylate"
FT /evidence="ECO:0000256|PIRSR:PIRSR017689-50"
FT MOD_RES 284
FT /note="N6-(pyridoxal phosphate)lysine"
FT /evidence="ECO:0000256|PIRSR:PIRSR017689-50"
SQ SEQUENCE 486 AA; 53527 MW; 3BFFE8139E93D0A1 CRC64;
MNAENQSRSE RLVTAAYVRQ GAQGRRAHEL RLRALLEQGK CPEDGWDEST IELFLHELAI
MDSNNFLGNC GVGEREGRVA SGLVARRHYR LIHGIGRSGD ISAVQPKAAG SSLLNKLTNS
VVLDIIKLAG VQTVTSCFVV PMATGMSLTL CFLTLRHKRP KAKYIIWPRI DQKSCFKSMI
TAGFEPVVIE NALEGDELRT DLKEVEAKIK ALGAENILCV HSTTSCFAPR VPDRLEELAV
ICANYDIPHI VNNAYGVQSS KCMHLIQQGA RVGRIDAFVQ SLDKNFMVPV GGAIIAGFNE
PFIQEISKMY PGRASASPSL DVLITLLSLG TSGYKKLLKE RKEMFSYLSS ELKKLADNHN
ERLLDTPHNP ISLAMSLKTL DETSDVAVTQ LGSMLFTRQV SGARVVPCGS VQTVNNYTFK
GFMSHANDYP CAYINAASAI GIKKQDVDVF LKRLDKCLKT FRKEAKQEKS INEISDANAA
TEELED
//
