ID SYS_CHLAB Reviewed; 424 AA.
AC Q5L4Z0;
DT 15-JAN-2008, integrated into UniProtKB/Swiss-Prot.
DT 21-JUN-2005, sequence version 1.
DT 27-MAR-2024, entry version 109.
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=CAB865;
OS Chlamydia abortus (strain DSM 27085 / S26/3) (Chlamydophila abortus).
OC Bacteria; Chlamydiota; Chlamydiia; Chlamydiales; Chlamydiaceae;
OC Chlamydia/Chlamydophila group; Chlamydia.
OX NCBI_TaxID=218497;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=DSM 27085 / S26/3;
RX PubMed=15837807; DOI=10.1101/gr.3684805;
RA Thomson N.R., Yeats C., Bell K., Holden M.T.G., Bentley S.D.,
RA Livingstone M., Cerdeno-Tarraga A.-M., Harris B., Doggett J., Ormond D.,
RA Mungall K., Clarke K., Feltwell T., Hance Z., Sanders M., Quail M.A.,
RA Price C., Barrell B.G., Parkhill J., Longbottom D.;
RT "The Chlamydophila abortus genome sequence reveals an array of variable
RT proteins that contribute to interspecies variation.";
RL Genome Res. 15:629-640(2005).
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=ATP + L-serine + tRNA(Ser) = AMP + diphosphate + H(+) + L-
CC seryl-tRNA(Ser); 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=ATP + L-serine + tRNA(Sec) = AMP + diphosphate + H(+) + L-
CC seryl-tRNA(Sec); 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; CR848038; CAH64305.1; -; Genomic_DNA.
DR RefSeq; WP_011097386.1; NC_004552.2.
DR AlphaFoldDB; Q5L4Z0; -.
DR SMR; Q5L4Z0; -.
DR KEGG; cab:CAB865; -.
DR eggNOG; COG0172; Bacteria.
DR HOGENOM; CLU_023797_1_1_0; -.
DR OrthoDB; 9804647at2; -.
DR UniPathway; UPA00906; UER00895.
DR Proteomes; UP000001012; Chromosome.
DR GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR GO; GO:0005524; F:ATP binding; IEA:UniProtKB-UniRule.
DR GO; GO:0004828; F:serine-tRNA ligase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0016260; P: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; 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 3: Inferred from homology;
KW Aminoacyl-tRNA synthetase; ATP-binding; Cytoplasm; Ligase;
KW Nucleotide-binding; Protein biosynthesis.
FT CHAIN 1..424
FT /note="Serine--tRNA ligase"
FT /id="PRO_1000019648"
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 278
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 384
FT /ligand="L-serine"
FT /ligand_id="ChEBI:CHEBI:33384"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00176"
SQ SEQUENCE 424 AA; 48409 MW; 1B8B15637B72E2F8 CRC64;
MLDIKLIRKA PEECETRLRK KDPLISLQPI LDLDKEIRHL KTETEALQSQ RKLLSNQIHK
AKAQGEDVSS MMDNVERISQ DLAKLEPLLE QKESTLQDML VRLPNYPDED VPVCPDKTGN
QVIKQVGALP TFSFTPKHHV ELNQKLQILD FKLPAKTSGS GWPAYKNQGV CLEWALLTYL
LNKQREHGFQ LWLPPLLVKH EILFGSGQIP KFDGQYYRVE DGEQSLYLIP TAEVVLNGFH
SQEIFSEKDL PIYYAAFTPC FRREAGAAGA HERGLVRVHQ FHKVEMFAFT TPDQADQAYE
KMLAVVEDIL TELQLPYRLS LLSTGDMSFT ASKTIDAEVW LPGQQSYYEV SSISQCTDFQ
SRRSETRYKD NRGKMHFVHT LNGSGLATPR LFVAILENNQ QEDGSVIIPE VLRPYLENQE
VLLP
//
