ID   SYS_STAAN               Reviewed;         428 AA.
AC   P99178; Q99XG2;
DT   26-APR-2004, integrated into UniProtKB/Swiss-Prot.
DT   26-APR-2004, sequence version 1.
DT   02-SEP-2026, entry version 114.
DE   RecName: Full=Serine--tRNA ligase {ECO:0000255|HAMAP-Rule:MF_00176};
DE            EC=6.1.1.11 {ECO:0000255|HAMAP-Rule:MF_00176};
DE   AltName: Full=Seryl-tRNA synthetase {ECO:0000255|HAMAP-Rule:MF_00176};
DE            Short=SerRS {ECO:0000255|HAMAP-Rule:MF_00176};
DE   AltName: Full=Seryl-tRNA(Ser/Sec) synthetase {ECO:0000255|HAMAP-Rule:MF_00176};
GN   Name=serS {ECO:0000255|HAMAP-Rule:MF_00176}; OrderedLocusNames=SA0009;
OS   Staphylococcus aureus (strain N315).
OC   Bacteria; Bacillati; Bacillota; Bacilli; Caryophanales; Staphylococcaceae;
OC   Staphylococcus.
OX   NCBI_TaxID=158879;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=N315;
RX   PubMed=11418146; DOI=10.1016/s0140-6736(00)04403-2;
RA   Kuroda M., Ohta T., Uchiyama I., Baba T., Yuzawa H., Kobayashi I., Cui L.,
RA   Oguchi A., Aoki K., Nagai Y., Lian J.-Q., Ito T., Kanamori M.,
RA   Matsumaru H., Maruyama A., Murakami H., Hosoyama A., Mizutani-Ui Y.,
RA   Takahashi N.K., Sawano T., Inoue R., Kaito C., Sekimizu K., Hirakawa H.,
RA   Kuhara S., Goto S., Yabuzaki J., Kanehisa M., Yamashita A., Oshima K.,
RA   Furuya K., Yoshino C., Shiba T., Hattori M., Ogasawara N., Hayashi H.,
RA   Hiramatsu K.;
RT   "Whole genome sequencing of meticillin-resistant Staphylococcus aureus.";
RL   Lancet 357:1225-1240(2001).
RN   [2]
RP   IDENTIFICATION BY MASS SPECTROMETRY.
RC   STRAIN=N315;
RX   PubMed=15590099; DOI=10.1016/j.mimet.2004.09.017;
RA   Scherl A., Francois P., Bento M., Deshusses J.M., Charbonnier Y.,
RA   Converset V., Huyghe A., Walter N., Hoogland C., Appel R.D., Sanchez J.-C.,
RA   Zimmermann-Ivol C.G., Corthals G.L., Hochstrasser D.F., Schrenzel J.;
RT   "Correlation of proteomic and transcriptomic profiles of Staphylococcus
RT   aureus during the post-exponential phase of growth.";
RL   J. Microbiol. Methods 60:247-257(2005).
RN   [3]
RP   IDENTIFICATION BY MASS SPECTROMETRY [LARGE SCALE ANALYSIS].
RC   STRAIN=N315;
RA   Vaezzadeh A.R., Deshusses J., Lescuyer P., Hochstrasser D.F.;
RT   "Shotgun proteomic analysis of total and membrane protein extracts of S.
RT   aureus strain N315.";
RL   Submitted (OCT-2007) to UniProtKB.
CC   -!- FUNCTION: Catalyzes the attachment of serine to tRNA(Ser). Is also able
CC       to aminoacylate tRNA(Sec) with serine, to form the misacylated tRNA L-
CC       seryl-tRNA(Sec), which will be further converted into selenocysteinyl-
CC       tRNA(Sec). {ECO:0000255|HAMAP-Rule:MF_00176}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=tRNA(Ser) + L-serine + ATP = L-seryl-tRNA(Ser) + AMP +
CC         diphosphate + H(+); Xref=Rhea:RHEA:12292, Rhea:RHEA-COMP:9669,
CC         Rhea:RHEA-COMP:9703, ChEBI:CHEBI:15378, ChEBI:CHEBI:30616,
CC         ChEBI:CHEBI:33019, ChEBI:CHEBI:33384, ChEBI:CHEBI:78442,
CC         ChEBI:CHEBI:78533, ChEBI:CHEBI:456215; EC=6.1.1.11;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00176};
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=tRNA(Sec) + L-serine + ATP = L-seryl-tRNA(Sec) + AMP +
CC         diphosphate + H(+); Xref=Rhea:RHEA:42580, Rhea:RHEA-COMP:9742,
CC         Rhea:RHEA-COMP:10128, ChEBI:CHEBI:15378, ChEBI:CHEBI:30616,
CC         ChEBI:CHEBI:33019, ChEBI:CHEBI:33384, ChEBI:CHEBI:78442,
CC         ChEBI:CHEBI:78533, ChEBI:CHEBI:456215; EC=6.1.1.11;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00176};
CC   -!- PATHWAY: Aminoacyl-tRNA biosynthesis; selenocysteinyl-tRNA(Sec)
CC       biosynthesis; L-seryl-tRNA(Sec) from L-serine and tRNA(Sec): step 1/1.
CC       {ECO:0000255|HAMAP-Rule:MF_00176}.
CC   -!- SUBUNIT: Homodimer. The tRNA molecule binds across the dimer.
CC       {ECO:0000255|HAMAP-Rule:MF_00176}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_00176}.
CC   -!- DOMAIN: Consists of two distinct domains, a catalytic core and a N-
CC       terminal extension that is involved in tRNA binding.
CC       {ECO:0000255|HAMAP-Rule:MF_00176}.
CC   -!- SIMILARITY: Belongs to the class-II aminoacyl-tRNA synthetase family.
CC       Type-1 seryl-tRNA synthetase subfamily. {ECO:0000255|HAMAP-
CC       Rule:MF_00176}.
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DR   EMBL; BA000018; BAB41225.1; -; Genomic_DNA.
DR   PIR; A89759; A89759.
DR   RefSeq; WP_000884332.1; NC_002745.2.
DR   AlphaFoldDB; P99178; -.
DR   SMR; P99178; -.
DR   EnsemblBacteria; BAB41225; BAB41225; BAB41225.
DR   KEGG; sau:SA0009; -.
DR   HOGENOM; CLU_023797_1_1_9; -.
DR   UniPathway; UPA00906; UER00895.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0005524; F:ATP binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0140096; F:catalytic activity, acting on a protein; IEA:UniProtKB-ARBA.
DR   GO; GO:0004828; F:serine-tRNA ligase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0016740; F:transferase activity; IEA:UniProtKB-ARBA.
DR   GO; GO:0016260; P:L-selenocysteine biosynthetic process; IEA:UniProtKB-UniRule.
DR   GO; GO:0006434; P:seryl-tRNA aminoacylation; IEA:UniProtKB-UniRule.
DR   CDD; cd00770; SerRS_core; 1.
DR   Gene3D; 3.30.930.10; Bira Bifunctional Protein, Domain 2; 1.
DR   Gene3D; 1.10.287.40; Serine-tRNA synthetase, tRNA binding domain; 1.
DR   HAMAP; MF_00176; Ser_tRNA_synth_type1; 1.
DR   InterPro; IPR002314; aa-tRNA-synt_IIb.
DR   InterPro; IPR006195; aa-tRNA-synth_II.
DR   InterPro; IPR045864; aa-tRNA-synth_II/BPL/LPL.
DR   InterPro; IPR002317; Ser-tRNA-ligase_type_1.
DR   InterPro; IPR015866; Ser-tRNA-synth_1_N.
DR   InterPro; IPR042103; SerRS_1_N_sf.
DR   InterPro; IPR033729; SerRS_core.
DR   InterPro; IPR010978; tRNA-bd_arm.
DR   NCBIfam; TIGR00414; serS; 1.
DR   PANTHER; PTHR43697:SF1; SERINE--TRNA LIGASE; 1.
DR   PANTHER; PTHR43697; SERYL-TRNA SYNTHETASE; 1.
DR   Pfam; PF02403; Seryl_tRNA_N; 1.
DR   Pfam; PF00587; tRNA-synt_2b; 1.
DR   PIRSF; PIRSF001529; Ser-tRNA-synth_IIa; 1.
DR   PRINTS; PR00981; TRNASYNTHSER.
DR   SUPFAM; SSF55681; Class II aaRS and biotin synthetases; 1.
DR   SUPFAM; SSF46589; tRNA-binding arm; 1.
DR   PROSITE; PS50862; AA_TRNA_LIGASE_II; 1.
PE   1: Evidence at protein level;
KW   Aminoacyl-tRNA synthetase; ATP-binding; Cytoplasm; Ligase;
KW   Nucleotide-binding; Protein biosynthesis.
FT   CHAIN           1..428
FT                   /note="Serine--tRNA ligase"
FT                   /id="PRO_0000122120"
FT   BINDING         231..233
FT                   /ligand="L-serine"
FT                   /ligand_id="ChEBI:CHEBI:33384"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00176"
FT   BINDING         262..264
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00176"
FT   BINDING         285
FT                   /ligand="L-serine"
FT                   /ligand_id="ChEBI:CHEBI:33384"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00176"
FT   BINDING         349..352
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00176"
FT   BINDING         385
FT                   /ligand="L-serine"
FT                   /ligand_id="ChEBI:CHEBI:33384"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00176"
SQ   SEQUENCE   428 AA;  48640 MW;  19CAAD63D966B600 CRC64;
     MLDIRLFRNE PDTVKSKIEL RGDDPKVVDE ILELDEQRRK LISATEEMKA RRNKVSEEIA
     LKKRNKENAD DVIAEMRTLG DDIKEKDSQL NEIDNKMTGI LCRIPNLISD DVPQGESDED
     NVEVKKWGTP REFSFEPKAH WDIVEELKMA DFDRAAKVSG ARFVYLTNEG AQLERALMNY
     MITKHTTQHG YTEMMVPQLV NADTMYGTGQ LPKFEEDLFK VEKEGLYTIP TAEVPLTNFY
     RNEIIQPGVL PEKFTGQSAC FRSEAGSAGR DTRGLIRLHQ FDKVEMVRFE QPEDSWNALE
     EMTTNAEAIL EELGLPYRRV ILCTGDIGFS ASKTYDIEVW LPSYNDYKEI SSCSNCTDFQ
     ARRANIRFKR DKAAKPELAH TLNGSGLAVG RTFAAIVENY QNEDGTVTIP EALVPFMGGK
     TQISKPVK
//