SYA_STAAB
ID SYA_STAAB Reviewed; 876 AA.
AC Q2YT60;
DT 02-SEP-2008, integrated into UniProtKB/Swiss-Prot.
DT 20-DEC-2005, sequence version 1.
DT 03-AUG-2022, entry version 99.
DE RecName: Full=Alanine--tRNA ligase {ECO:0000255|HAMAP-Rule:MF_00036};
DE EC=6.1.1.7 {ECO:0000255|HAMAP-Rule:MF_00036};
DE AltName: Full=Alanyl-tRNA synthetase {ECO:0000255|HAMAP-Rule:MF_00036};
DE Short=AlaRS {ECO:0000255|HAMAP-Rule:MF_00036};
GN Name=alaS {ECO:0000255|HAMAP-Rule:MF_00036}; OrderedLocusNames=SAB1489c;
OS Staphylococcus aureus (strain bovine RF122 / ET3-1).
OC Bacteria; Firmicutes; Bacilli; Bacillales; Staphylococcaceae;
OC Staphylococcus.
OX NCBI_TaxID=273036;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=bovine RF122 / ET3-1;
RX PubMed=17971880; DOI=10.1371/journal.pone.0001120;
RA Herron-Olson L., Fitzgerald J.R., Musser J.M., Kapur V.;
RT "Molecular correlates of host specialization in Staphylococcus aureus.";
RL PLoS ONE 2:E1120-E1120(2007).
CC -!- FUNCTION: Catalyzes the attachment of alanine to tRNA(Ala) in a two-
CC step reaction: alanine is first activated by ATP to form Ala-AMP and
CC then transferred to the acceptor end of tRNA(Ala). Also edits
CC incorrectly charged Ser-tRNA(Ala) and Gly-tRNA(Ala) via its editing
CC domain. {ECO:0000255|HAMAP-Rule:MF_00036}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=ATP + L-alanine + tRNA(Ala) = AMP + diphosphate + L-alanyl-
CC tRNA(Ala); Xref=Rhea:RHEA:12540, Rhea:RHEA-COMP:9657, Rhea:RHEA-
CC COMP:9923, ChEBI:CHEBI:30616, ChEBI:CHEBI:33019, ChEBI:CHEBI:57972,
CC ChEBI:CHEBI:78442, ChEBI:CHEBI:78497, ChEBI:CHEBI:456215; EC=6.1.1.7;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_00036};
CC -!- COFACTOR:
CC Name=Zn(2+); Xref=ChEBI:CHEBI:29105;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_00036};
CC Note=Binds 1 zinc ion per subunit. {ECO:0000255|HAMAP-Rule:MF_00036};
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_00036}.
CC -!- DOMAIN: Consists of three domains; the N-terminal catalytic domain, the
CC editing domain and the C-terminal C-Ala domain. The editing domain
CC removes incorrectly charged amino acids, while the C-Ala domain, along
CC with tRNA(Ala), serves as a bridge to cooperatively bring together the
CC editing and aminoacylation centers thus stimulating deacylation of
CC misacylated tRNAs. {ECO:0000255|HAMAP-Rule:MF_00036}.
CC -!- SIMILARITY: Belongs to the class-II aminoacyl-tRNA synthetase family.
CC {ECO:0000255|HAMAP-Rule:MF_00036}.
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DR EMBL; AJ938182; CAI81178.1; -; Genomic_DNA.
DR RefSeq; WP_000734067.1; NC_007622.1.
DR AlphaFoldDB; Q2YT60; -.
DR SMR; Q2YT60; -.
DR KEGG; sab:SAB1489c; -.
DR HOGENOM; CLU_004485_1_1_9; -.
DR OMA; YHHTMFE; -.
DR GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR GO; GO:0004813; F:alanine-tRNA ligase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0005524; F:ATP binding; IEA:UniProtKB-UniRule.
DR GO; GO:0000049; F:tRNA binding; IEA:UniProtKB-KW.
DR GO; GO:0008270; F:zinc ion binding; IEA:UniProtKB-UniRule.
DR GO; GO:0006419; P:alanyl-tRNA aminoacylation; IEA:UniProtKB-UniRule.
DR Gene3D; 3.30.930.10; -; 1.
DR HAMAP; MF_00036_B; Ala_tRNA_synth_B; 1.
DR InterPro; IPR045864; aa-tRNA-synth_II/BPL/LPL.
DR InterPro; IPR002318; Ala-tRNA-lgiase_IIc.
DR InterPro; IPR018162; Ala-tRNA-ligase_IIc_anticod-bd.
DR InterPro; IPR018165; Ala-tRNA-synth_IIc_core.
DR InterPro; IPR018164; Ala-tRNA-synth_IIc_N.
DR InterPro; IPR023033; Ala_tRNA_ligase_euk/bac.
DR InterPro; IPR003156; DHHA1_dom.
DR InterPro; IPR018163; Thr/Ala-tRNA-synth_IIc_edit.
DR InterPro; IPR009000; Transl_B-barrel_sf.
DR InterPro; IPR012947; tRNA_SAD.
DR Pfam; PF02272; DHHA1; 1.
DR Pfam; PF01411; tRNA-synt_2c; 1.
DR Pfam; PF07973; tRNA_SAD; 1.
DR PRINTS; PR00980; TRNASYNTHALA.
DR SMART; SM00863; tRNA_SAD; 1.
DR SUPFAM; SSF101353; SSF101353; 1.
DR SUPFAM; SSF50447; SSF50447; 1.
DR SUPFAM; SSF55186; SSF55186; 1.
DR SUPFAM; SSF55681; SSF55681; 1.
DR TIGRFAMs; TIGR00344; alaS; 1.
DR PROSITE; PS50860; AA_TRNA_LIGASE_II_ALA; 1.
PE 3: Inferred from homology;
KW Aminoacyl-tRNA synthetase; ATP-binding; Cytoplasm; Ligase; Metal-binding;
KW Nucleotide-binding; Protein biosynthesis; RNA-binding; tRNA-binding; Zinc.
FT CHAIN 1..876
FT /note="Alanine--tRNA ligase"
FT /id="PRO_0000347808"
FT BINDING 565
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00036"
FT BINDING 569
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00036"
FT BINDING 667
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00036"
FT BINDING 671
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00036"
SQ SEQUENCE 876 AA; 98540 MW; 0CC98CF0D5CC9FCD CRC64;
MKKLKASEIR QKYLDFFVEK GHMVEPSAPL VPIDDDTLLW INSGVATLKK YFDGRETPKK
PRIVNSQKAI RTNDIENVGF TARHHTFFEM LGNFSIGDYF KQEAIEFAWE FLTSDKWMGM
EPDKLYVTIH PEDMEAYNIW HKDIGLEESR IIRIEGNFWD IGEGPSGPNT EIFYDRGEAY
GQDDPAEEMY PGGENERYLE VWNLVFSEFN HNKDHSYTPL PNKNIDTGMG LERMASVSQN
VRTNYETDLF MPIMNEIEKV SGKQYLVNNE QDVAFKVIAD HIRTIAFAIS DGALPANEGR
GYVLRRLLRR AVRFSQTLGI NEPFMYKLVD IVADIMEPYY PNVKEKADFI KRVIKSEEER
FHETLEDGLA ILNELIKKAK ATTNEINGKD AFKLYDTYGF PIELTEEIAV QAGLKVDMTT
FESEMQQQRD RARQARQNSQ SMQVQSEVLK NITSASTFVG YDTATAQTTL THLIYNGEEV
SQVEAGETVY FMLTETPFYA VSGGQVADTG IVYNDNFEIA VSEVTKAPNG QNLHKGAVQF
GQVNVGATVS AEVNQNDRRD IQKNHSATHL LHAALKSVLG DHVNQAGSLV EADRLRFDFS
HFGPMTNDEI DQVERLVNEE IWKGIDVNIQ EMDIASAKEM GAMALFGEKY GDVVRVVNMA
PFSIELCGGI HVRNTSEIGL FKIVSESGTG AGVRRIEALT GKAAFLYLED IQEKFNTMKS
QMKVKSDDQV IDKLTQLQDE EKALLKQLEQ RDKEITSLKM GNIEDQVEEI NGYKVLVTEV
DVPNAKAIRS TMDDFKSKLQ DTIIILASNV DDKVSMVATV PKSLTNNVKA GDLIKQMAPI
VSGKGGGRPD MAQGGGTQPE NISKSLSFIK DYIKNL
