SYS_LACH4
ID SYS_LACH4 Reviewed; 435 AA.
AC A8YWU9;
DT 26-FEB-2008, integrated into UniProtKB/Swiss-Prot.
DT 15-JAN-2008, sequence version 1.
DT 03-AUG-2022, entry version 78.
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=lhv_1734;
OS Lactobacillus helveticus (strain DPC 4571).
OC Bacteria; Firmicutes; Bacilli; Lactobacillales; Lactobacillaceae;
OC Lactobacillus.
OX NCBI_TaxID=405566;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=DPC 4571;
RX PubMed=17993529; DOI=10.1128/jb.01295-07;
RA Callanan M., Kaleta P., O'Callaghan J., O'Sullivan O., Jordan K.,
RA McAuliffe O., Sangrador-Vegas A., Slattery L., Fitzgerald G.F.,
RA Beresford T., Ross R.P.;
RT "Genome sequence of Lactobacillus helveticus: an organism distinguished by
RT selective gene loss and IS element expansion.";
RL J. Bacteriol. 190:727-735(2008).
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; CP000517; ABX27610.1; -; Genomic_DNA.
DR RefSeq; WP_012212192.1; NC_010080.1.
DR AlphaFoldDB; A8YWU9; -.
DR SMR; A8YWU9; -.
DR STRING; 405566.lhv_1734; -.
DR PRIDE; A8YWU9; -.
DR EnsemblBacteria; ABX27610; ABX27610; lhv_1734.
DR KEGG; lhe:lhv_1734; -.
DR eggNOG; COG0172; Bacteria.
DR HOGENOM; CLU_023797_0_1_9; -.
DR OMA; SGWGWYF; -.
DR UniPathway; UPA00906; UER00895.
DR Proteomes; UP000000790; 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:0097056; P:selenocysteinyl-tRNA(Sec) biosynthetic process; IEA:UniProtKB-UniPathway.
DR GO; GO:0006434; P:seryl-tRNA aminoacylation; IEA:UniProtKB-UniRule.
DR CDD; cd00770; SerRS_core; 1.
DR Gene3D; 1.10.287.40; -; 1.
DR Gene3D; 3.30.930.10; -; 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 PANTHER; PTHR43697; PTHR43697; 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; SSF46589; SSF46589; 1.
DR SUPFAM; SSF55681; SSF55681; 1.
DR TIGRFAMs; TIGR00414; serS; 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..435
FT /note="Serine--tRNA ligase"
FT /id="PRO_1000071635"
FT REGION 42..70
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT BINDING 237..239
FT /ligand="L-serine"
FT /ligand_id="ChEBI:CHEBI:33384"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00176"
FT BINDING 268..270
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00176"
FT BINDING 291
FT /ligand="L-serine"
FT /ligand_id="ChEBI:CHEBI:33384"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00176"
FT BINDING 355..358
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00176"
FT BINDING 390
FT /ligand="L-serine"
FT /ligand_id="ChEBI:CHEBI:33384"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00176"
SQ SEQUENCE 435 AA; 49460 MW; F95DDE6080FA38AA CRC64;
MLDIKVIREN LDWSKKKLAT RGIKPEELDE LVEIDAKRRK DLTKSEQLKA KRNDVSKQIA
EKKRNKEDAS DAIQAMREVG KEIKDLDKEV AELTEKQNYI LLRLPNFPAD SDPIGPDDSY
NEEVRKWNEP TKFDFKPKAH WDIGTDLGIL DWDRASKVSG ARFVYYIGAG ALLERAVFNF
FLDENTKDGY TEVIPPYLVN DASMQGTGQF PKFHEDVYTI VDNDDPDKPR DLTLIPTAEV
PLVNYFRNEI IHENKLPINV TALSPAFRSE AGSAGRDTRG LIRMHEFRKV EMVKVCKPDE
SWDELEKLTH NAEHLLQKLG LPYHVVALST GDASFTSART YDLEVWMPAQ DKYREISSCS
NCTDFQARRA QIRYRDEDGK LHLAHTLNGS GLAVGRAVAA ILENYQNEDG SVTVPDVLVP
YMNGMKKITK ESGLI
