SYS_LACCB
ID SYS_LACCB Reviewed; 427 AA.
AC B3W8V7;
DT 24-MAR-2009, integrated into UniProtKB/Swiss-Prot.
DT 02-SEP-2008, sequence version 1.
DT 03-AUG-2022, entry version 72.
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=LCABL_20590;
OS Lacticaseibacillus casei (strain BL23) (Lactobacillus casei).
OC Bacteria; Firmicutes; Bacilli; Lactobacillales; Lactobacillaceae;
OC Lacticaseibacillus.
OX NCBI_TaxID=543734;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=BL23;
RA Maze A., Boel G., Bourand A., Loux V., Gibrat J.F., Zuniga M., Hartke A.,
RA Deutscher J.;
RT "Lactobacillus casei BL23 complete genome sequence.";
RL Submitted (JUN-2008) to the EMBL/GenBank/DDBJ databases.
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; FM177140; CAQ67126.1; -; Genomic_DNA.
DR RefSeq; WP_012491713.1; NC_010999.1.
DR AlphaFoldDB; B3W8V7; -.
DR SMR; B3W8V7; -.
DR KEGG; lcb:LCABL_20590; -.
DR HOGENOM; CLU_023797_1_1_9; -.
DR OMA; SPCFRRE; -.
DR OrthoDB; 353391at2; -.
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: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..427
FT /note="Serine--tRNA ligase"
FT /id="PRO_1000098083"
FT BINDING 232..234
FT /ligand="L-serine"
FT /ligand_id="ChEBI:CHEBI:33384"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00176"
FT BINDING 263..265
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00176"
FT BINDING 286
FT /ligand="L-serine"
FT /ligand_id="ChEBI:CHEBI:33384"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00176"
FT BINDING 350..353
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 427 AA; 48607 MW; 9F407D714A809E2A CRC64;
MLDLKLIRQK PEWAKEKLAA RAIKGEEIDE LLALDTRRRQ VTVQTEELKA KRNDVSGQIA
VMKRNKENAD DQIKAMREVG QKIAALDKEL AQLNEKVTYI LVRLPNFPAD DVPMSLNEDD
SREEYKWGNM PTFDFEPKHH WDIGEKLGIL DFERAAKVAG SRFVYYKGAG ARLERAVYNF
FLDEHQKEGY EEIIPPYLVN NDSMFGTGQF PKFTDATYTI TNDGEPLTLI PTAEVPLVNY
YRNDIVDAEK LPVNFTALTP AFRSEAGSAG RDTRGLIRMH QFNKVEMVKF CKPEDSWKQL
QNLIHDAEDL LQKLGLPYHV ITLASNDASF TSAKTNDLEV WMPAQDRYRE ISSCSNCTDF
QARRAQIRYR DDDGKLQFVH TLNGSGLAVG RTVASILENY QQADGSVKIP DVLVPYMQGQ
TAITKED
