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SYA_ECOHS
ID   SYA_ECOHS               Reviewed;         876 AA.
AC   A8A3H4;
DT   02-SEP-2008, integrated into UniProtKB/Swiss-Prot.
DT   23-OCT-2007, sequence version 1.
DT   03-AUG-2022, entry version 79.
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=EcHS_A2833;
OS   Escherichia coli O9:H4 (strain HS).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC   Enterobacteriaceae; Escherichia.
OX   NCBI_TaxID=331112;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=HS;
RX   PubMed=18676672; DOI=10.1128/jb.00619-08;
RA   Rasko D.A., Rosovitz M.J., Myers G.S.A., Mongodin E.F., Fricke W.F.,
RA   Gajer P., Crabtree J., Sebaihia M., Thomson N.R., Chaudhuri R.,
RA   Henderson I.R., Sperandio V., Ravel J.;
RT   "The pangenome structure of Escherichia coli: comparative genomic analysis
RT   of E. coli commensal and pathogenic isolates.";
RL   J. Bacteriol. 190:6881-6893(2008).
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   -!- SUBUNIT: Homotetramer. {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; CP000802; ABV07078.1; -; Genomic_DNA.
DR   RefSeq; WP_000047170.1; NC_009800.1.
DR   AlphaFoldDB; A8A3H4; -.
DR   SMR; A8A3H4; -.
DR   KEGG; ecx:EcHS_A2833; -.
DR   HOGENOM; CLU_004485_1_1_6; -.
DR   OMA; YHHTMFE; -.
DR   Proteomes; UP000001123; Chromosome.
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   Acetylation; Aminoacyl-tRNA synthetase; ATP-binding; Cytoplasm; Ligase;
KW   Metal-binding; Nucleotide-binding; Protein biosynthesis; RNA-binding;
KW   tRNA-binding; Zinc.
FT   CHAIN           1..876
FT                   /note="Alanine--tRNA ligase"
FT                   /id="PRO_0000347603"
FT   BINDING         564
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00036"
FT   BINDING         568
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00036"
FT   BINDING         666
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00036"
FT   BINDING         670
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00036"
FT   MOD_RES         74
FT                   /note="N6-acetyllysine"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00036"
SQ   SEQUENCE   876 AA;  95974 MW;  7A7D9B1853F7DCE2 CRC64;
     MSKSTAEIRQ AFLDFFHSKG HQVVASSSLV PHNDPTLLFT NAGMNQFKDV FLGLDKRNYS
     RATTSQRCVR AGGKHNDLEN VGYTARHHTF FEMLGNFSFG DYFKHDAIQF AWELLTSEKW
     FALPKERLWV TVYESDDEAY EIWEKEVGIP RERIIRIGDN KGAPYASDNF WQMGDTGPCG
     PCTEIFYDHG DHIWGGPPGS PEEDGDRYIE IWNIVFMQFN RQADGTMEPL PKPSVDTGMG
     LERIAAVLQH VNSNYDIDLF RTLIQAVAKV TGATDLSNKS LRVIADHIRS CAFLIADGVM
     PSNENRGYVL RRIIRRAVRH GNMLGAKETF FYKLVGPLID VMGSAGEDLK RQQAQVEQVL
     KTEEEQFART LERGLALLDE ELAKLSGDTL DGETAFRLYD TYGFPVDLTA DVCRERNIKV
     DEAGFEAAME EQRRRAREAS GFGADYNAMI RVDSASEFKG YDHLELNGKV TALFVDGKAV
     DAINAGQEAV VVLDQTPFYA ESGGQVGDKG ELKGANFSFA VEDTQKYGQA IGHIGKLAAG
     SLKVGDAVQA DVDEARRARI RLNHSATHLM HAALRQVLGT HVSQKGSLVN DKVLRFDFSH
     NEAMKPEEIR AVEDLVNAQI RRNLPIETNI MDLEAAKAKG AMALFGEKYD ERVRVLSMGD
     FSTELCGGTH ASRTGDIGLF RIISESGTAA GVRRIEAVTG EGAIATVHAD SDRLSEVAHL
     LKGDSNNLAD KVRSVLERTR QLEKELQQLK EQAAAQESAN LSSKAIDVNG VKLLVSELSG
     VEPKMLRTMV DDLKNQLGST IIVLATVAEG KVSLIAGVSK DVTDRVKAGE LIGMVAQQVG
     GKGGGRPDMA QAGGTDAAAL PAALASVKGW VSAKLQ
 
 
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