ID A0A2B8B7U3_9PROT Unreviewed; 423 AA.
AC A0A2B8B7U3;
DT 20-DEC-2017, integrated into UniProtKB/TrEMBL.
DT 20-DEC-2017, sequence version 1.
DT 27-MAR-2024, entry version 24.
DE RecName: Full=Serine--tRNA ligase {ECO:0000256|HAMAP-Rule:MF_00176};
DE EC=6.1.1.11 {ECO:0000256|HAMAP-Rule:MF_00176};
DE AltName: Full=Seryl-tRNA synthetase {ECO:0000256|HAMAP-Rule:MF_00176};
DE Short=SerRS {ECO:0000256|HAMAP-Rule:MF_00176};
DE AltName: Full=Seryl-tRNA(Ser/Sec) synthetase {ECO:0000256|HAMAP-Rule:MF_00176};
GN Name=serS {ECO:0000256|HAMAP-Rule:MF_00176};
GN ORFNames=CRT60_28405 {ECO:0000313|EMBL:PGH53769.1};
OS Azospirillum palustre.
OC Bacteria; Pseudomonadota; Alphaproteobacteria; Rhodospirillales;
OC Azospirillaceae; Azospirillum.
OX NCBI_TaxID=2044885 {ECO:0000313|EMBL:PGH53769.1, ECO:0000313|Proteomes:UP000225379};
RN [1] {ECO:0000313|Proteomes:UP000225379}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=B2 {ECO:0000313|Proteomes:UP000225379};
RA Kravchenko I.K., Grouzdev D.S.;
RL Submitted (OCT-2017) 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:0000256|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:0000256|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:0000256|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:0000256|ARBA:ARBA00005045, ECO:0000256|HAMAP-Rule:MF_00176}.
CC -!- SUBUNIT: Homodimer. The tRNA molecule binds across the dimer.
CC {ECO:0000256|HAMAP-Rule:MF_00176}.
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000256|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:0000256|HAMAP-Rule:MF_00176}.
CC -!- SIMILARITY: Belongs to the class-II aminoacyl-tRNA synthetase family.
CC Type-1 seryl-tRNA synthetase subfamily. {ECO:0000256|HAMAP-
CC Rule:MF_00176}.
CC -!- CAUTION: Lacks conserved residue(s) required for the propagation of
CC feature annotation. {ECO:0000256|HAMAP-Rule:MF_00176}.
CC -!- CAUTION: The sequence shown here is derived from an EMBL/GenBank/DDBJ
CC whole genome shotgun (WGS) entry which is preliminary data.
CC {ECO:0000313|EMBL:PGH53769.1}.
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DR EMBL; PDKW01000043; PGH53769.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A2B8B7U3; -.
DR OrthoDB; 9804647at2; -.
DR UniPathway; UPA00906; UER00895.
DR Proteomes; UP000225379; Unassembled WGS sequence.
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 {ECO:0000256|ARBA:ARBA00023146,
KW ECO:0000256|HAMAP-Rule:MF_00176};
KW ATP-binding {ECO:0000256|ARBA:ARBA00022840, ECO:0000256|HAMAP-
KW Rule:MF_00176}; Coiled coil {ECO:0000256|SAM:Coils};
KW Cytoplasm {ECO:0000256|HAMAP-Rule:MF_00176};
KW Ligase {ECO:0000256|ARBA:ARBA00022598, ECO:0000256|HAMAP-Rule:MF_00176};
KW Nucleotide-binding {ECO:0000256|ARBA:ARBA00022741, ECO:0000256|HAMAP-
KW Rule:MF_00176};
KW Protein biosynthesis {ECO:0000256|ARBA:ARBA00022917, ECO:0000256|HAMAP-
KW Rule:MF_00176}.
FT DOMAIN 170..408
FT /note="Aminoacyl-transfer RNA synthetases class-II family
FT profile"
FT /evidence="ECO:0000259|PROSITE:PS50862"
FT COILED 30..64
FT /evidence="ECO:0000256|SAM:Coils"
FT BINDING 229..231
FT /ligand="L-serine"
FT /ligand_id="ChEBI:CHEBI:33384"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00176"
FT BINDING 260..262
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00176"
FT BINDING 283
FT /ligand="L-serine"
FT /ligand_id="ChEBI:CHEBI:33384"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00176"
FT BINDING 347..350
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00176"
FT BINDING 383
FT /ligand="L-serine"
FT /ligand_id="ChEBI:CHEBI:33384"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00176"
SQ SEQUENCE 423 AA; 47152 MW; BC8964583C3F7EC0 CRC64;
MHDLRAIREN PEAFDRGLGR RGLAPMSSSM LDLDSRRRAA QTQMQEMQAR RNEAAKEVGL
AKREGRDAQP ILDEMATLKD RLPQVEEEER ALGAELDAIL AGIPNIPADD VPDGPDETAN
VEVRRWGTPA DIANPKQHYE LGEALGLMDF EAAARMSGAR FTVLKGGLAR LERALADFML
DIHTSEHGFT EIAPPLMVRD NALFGTGQLP KFEEDLFKTT SSDHYLIPTS EVPLTNLVND
QIVGSEELPL RYTALTPCFR AEAGSAGRDT RGMIRQHQFW KVEMVAITAP EQSEDEHQRM
TRCAETILER LGLPYRTIVL CTGDMGFSSR KTYDVEVWLP GQNAYREISS ISNCGDFQAR
RMKARCRAKG EKQTQFVHTL NGSGVAVGRC LIAVLENYQQ PDGSILVPEA LRPYMRGVER
ISI
//
