ID I4EUX4_9ACTN Unreviewed; 436 AA.
AC I4EUX4;
DT 05-SEP-2012, integrated into UniProtKB/TrEMBL.
DT 05-SEP-2012, sequence version 1.
DT 24-JAN-2024, entry version 61.
DE RecName: Full=L-seryl-tRNA(Sec) selenium transferase {ECO:0000256|HAMAP-Rule:MF_00423};
DE EC=2.9.1.1 {ECO:0000256|HAMAP-Rule:MF_00423};
DE AltName: Full=Selenocysteine synthase {ECO:0000256|HAMAP-Rule:MF_00423};
DE Short=Sec synthase {ECO:0000256|HAMAP-Rule:MF_00423};
DE AltName: Full=Selenocysteinyl-tRNA(Sec) synthase {ECO:0000256|HAMAP-Rule:MF_00423};
GN Name=selA {ECO:0000256|HAMAP-Rule:MF_00423,
GN ECO:0000313|EMBL:CCH87187.1};
GN OrderedLocusNames=MODMU_1748 {ECO:0000313|EMBL:CCH87187.1};
OS Modestobacter marinus.
OC Bacteria; Actinomycetota; Actinomycetes; Geodermatophilales;
OC Geodermatophilaceae; Modestobacter.
OX NCBI_TaxID=477641 {ECO:0000313|EMBL:CCH87187.1, ECO:0000313|Proteomes:UP000006461};
RN [1] {ECO:0000313|EMBL:CCH87187.1, ECO:0000313|Proteomes:UP000006461}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=BC501 {ECO:0000313|EMBL:CCH87187.1,
RC ECO:0000313|Proteomes:UP000006461};
RX PubMed=22887672; DOI=10.1128/JB.01029-12;
RA Normand P., Gury J., Pujic P., Chouaia B., Crotti E., Brusetti L.,
RA Daffonchio D., Vacherie B., Barbe V., Medigue C., Calteau A.,
RA Ghodhbane-Gtari F., Essoussi I., Nouioui I., Abbassi-Ghozzi I., Gtari M.;
RT "Genome Sequence of Radiation-Resistant Modestobacter marinus Strain BC501,
RT a Representative Actinobacterium That Thrives on Calcareous Stone
RT Surfaces.";
RL J. Bacteriol. 194:4773-4774(2012).
CC -!- FUNCTION: Converts seryl-tRNA(Sec) to selenocysteinyl-tRNA(Sec)
CC required for selenoprotein biosynthesis. {ECO:0000256|HAMAP-
CC Rule:MF_00423}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=H(+) + L-seryl-tRNA(Sec) + selenophosphate = L-
CC selenocysteinyl-tRNA(Sec) + phosphate; Xref=Rhea:RHEA:22728,
CC Rhea:RHEA-COMP:9742, Rhea:RHEA-COMP:9743, ChEBI:CHEBI:15378,
CC ChEBI:CHEBI:16144, ChEBI:CHEBI:43474, ChEBI:CHEBI:78533,
CC ChEBI:CHEBI:78573; EC=2.9.1.1; Evidence={ECO:0000256|HAMAP-
CC Rule:MF_00423};
CC -!- COFACTOR:
CC Name=pyridoxal 5'-phosphate; Xref=ChEBI:CHEBI:597326;
CC Evidence={ECO:0000256|ARBA:ARBA00001933,
CC ECO:0000256|HAMAP-Rule:MF_00423, ECO:0000256|PIRSR:PIRSR618319-50};
CC -!- PATHWAY: Aminoacyl-tRNA biosynthesis; selenocysteinyl-tRNA(Sec)
CC biosynthesis; selenocysteinyl-tRNA(Sec) from L-seryl-tRNA(Sec)
CC (bacterial route): step 1/1. {ECO:0000256|HAMAP-Rule:MF_00423}.
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000256|HAMAP-Rule:MF_00423}.
CC -!- SIMILARITY: Belongs to the SelA family. {ECO:0000256|HAMAP-
CC Rule:MF_00423}.
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DR EMBL; FO203431; CCH87187.1; -; Genomic_DNA.
DR RefSeq; WP_014739786.1; NC_017955.1.
DR AlphaFoldDB; I4EUX4; -.
DR STRING; 477641.MODMU_1748; -.
DR KEGG; mmar:MODMU_1748; -.
DR PATRIC; fig|477641.3.peg.1646; -.
DR eggNOG; COG1921; Bacteria.
DR HOGENOM; CLU_038142_0_0_11; -.
DR OMA; GATNRTH; -.
DR OrthoDB; 9787096at2; -.
DR UniPathway; UPA00906; UER00896.
DR Proteomes; UP000006461; Chromosome.
DR GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR GO; GO:0004125; F:L-seryl-tRNA(Sec) selenium transferase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0001514; P:selenocysteine incorporation; IEA:UniProtKB-UniRule.
DR Gene3D; 3.90.1150.180; -; 1.
DR Gene3D; 3.40.640.10; Type I PLP-dependent aspartate aminotransferase-like (Major domain); 1.
DR HAMAP; MF_00423; SelA; 1.
DR InterPro; IPR015424; PyrdxlP-dep_Trfase.
DR InterPro; IPR015421; PyrdxlP-dep_Trfase_major.
DR InterPro; IPR018319; SelA-like.
DR InterPro; IPR004534; SelA_trans.
DR InterPro; IPR025862; SelA_trans_N_dom.
DR NCBIfam; TIGR00474; selA; 1.
DR PANTHER; PTHR32328; L-SERYL-TRNA(SEC) SELENIUM TRANSFERASE; 1.
DR PANTHER; PTHR32328:SF0; L-SERYL-TRNA(SEC) SELENIUM TRANSFERASE; 1.
DR Pfam; PF12390; Se-cys_synth_N; 1.
DR Pfam; PF03841; SelA; 1.
DR SUPFAM; SSF53383; PLP-dependent transferases; 1.
PE 3: Inferred from homology;
KW Cytoplasm {ECO:0000256|HAMAP-Rule:MF_00423};
KW Protein biosynthesis {ECO:0000256|ARBA:ARBA00022917, ECO:0000256|HAMAP-
KW Rule:MF_00423};
KW Pyridoxal phosphate {ECO:0000256|ARBA:ARBA00022898, ECO:0000256|HAMAP-
KW Rule:MF_00423}; Reference proteome {ECO:0000313|Proteomes:UP000006461};
KW Selenium {ECO:0000256|ARBA:ARBA00023266, ECO:0000256|HAMAP-Rule:MF_00423};
KW Transferase {ECO:0000256|HAMAP-Rule:MF_00423, ECO:0000313|EMBL:CCH87187.1}.
FT DOMAIN 6..45
FT /note="L-seryl-tRNA selenium transferase N-terminal"
FT /evidence="ECO:0000259|Pfam:PF12390"
FT MOD_RES 280
FT /note="N6-(pyridoxal phosphate)lysine"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00423,
FT ECO:0000256|PIRSR:PIRSR618319-50"
SQ SEQUENCE 436 AA; 44404 MW; E7046B96888AF76C CRC64;
MTGDPRRSVP RTDAVLAEPP VAAAVARLGR DLVKTAVQAA QQRVRDGGLA AADVVPAVLA
ALPGTASSLR PVLNATGVLV HTNLGRAPLS AAAVDAVVAA SGTTDVELDL GTGRRGLRGE
GALTALLDAV PAAGAALVVN NCAAALALVA TALGGELVIA RGELVEIGDG FRIPDLLAST
GARLREVGTT NRVSVADYTD ALGPDTGAVL KVHPSNFVVR GFTRAAEVAE LAPALAGTGV
PLVADVGSGL LRPHPLLPDE PDLQTTLAAG ADLALCSGDK LLGGPQAGIV LGRADLVQRL
RRHPLYRALR VDKTTLAALE ATLRGPLPPV RRMLDADPAE LRARAGQVAA ALQAAGVPAT
VVDSTARVGG GGAPEFELPS VAVALDVRFA EPLRLGARPV VGYVDDDRTL LDLRSLAPAD
DADLVRAVEE VARRWT
//
