ID   SYA_METPB               Reviewed;         891 AA.
AC   B1ZC90;
DT   02-SEP-2008, integrated into UniProtKB/Swiss-Prot.
DT   20-MAY-2008, sequence version 1.
DT   03-AUG-2022, entry version 95.
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=Mpop_2626;
OS   Methylorubrum populi (strain ATCC BAA-705 / NCIMB 13946 / BJ001)
OS   (Methylobacterium populi).
OC   Bacteria; Proteobacteria; Alphaproteobacteria; Hyphomicrobiales;
OC   Methylobacteriaceae; Methylorubrum.
OX   NCBI_TaxID=441620;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC BAA-705 / NCIMB 13946 / BJ001;
RG   US DOE Joint Genome Institute;
RA   Copeland A., Lucas S., Lapidus A., Glavina del Rio T., Dalin E., Tice H.,
RA   Bruce D., Goodwin L., Pitluck S., Chertkov O., Brettin T., Detter J.C.,
RA   Han C., Kuske C.R., Schmutz J., Larimer F., Land M., Hauser L.,
RA   Kyrpides N., Mikhailova N., Marx C., Richardson P.;
RT   "Complete sequence of chromosome of Methylobacterium populi BJ001.";
RL   Submitted (APR-2008) to the EMBL/GenBank/DDBJ databases.
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; CP001029; ACB80783.1; -; Genomic_DNA.
DR   RefSeq; WP_012454505.1; NC_010725.1.
DR   AlphaFoldDB; B1ZC90; -.
DR   SMR; B1ZC90; -.
DR   STRING; 441620.Mpop_2626; -.
DR   EnsemblBacteria; ACB80783; ACB80783; Mpop_2626.
DR   KEGG; mpo:Mpop_2626; -.
DR   eggNOG; COG0013; Bacteria.
DR   HOGENOM; CLU_004485_1_1_5; -.
DR   OMA; YHHTMFE; -.
DR   Proteomes; UP000007136; 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   Aminoacyl-tRNA synthetase; ATP-binding; Cytoplasm; Ligase; Metal-binding;
KW   Nucleotide-binding; Protein biosynthesis; Reference proteome; RNA-binding;
KW   tRNA-binding; Zinc.
FT   CHAIN           1..891
FT                   /note="Alanine--tRNA ligase"
FT                   /id="PRO_0000347673"
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         681
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00036"
FT   BINDING         685
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00036"
SQ   SEQUENCE   891 AA;  95628 MW;  BAD8CD3C2B466BC2 CRC64;
     MSGVNEIRST FLDYFRDAGH AVVPSSSLVP KNDPTLMFTN AGMVQFKNVF TGVEKRPYVK
     ATSSQKCVRA GGKHNDLDNV GYTARHHTFF EMLGNFSFGD YFKADAIELA WTLITKEFGL
     TPERLLVTVY ADDDEAAGLW KKIAGFGDDK IIRIGTSDNF WQMGDTGPCG PCSEIFIDQG
     PALAGGPPGS PDEDGDRFLE FWNLVFMQYE QVEPGVRNPL PRPSIDTGMG LERMAAILQG
     VHSNYDTDLF RALIDAVAHA VSRAPEPATR ASYRVIADHL RSTSFLIADG VLPSNEGRGY
     VLRRIMRRAM RHLELLGARD PVMYRLVPTL VREMGRAFPE LVRSEALISE TLRLEEGRFR
     KTLERGLAIL DAESRDLSAG QNLSGETAFT LYDTYGFPLD LTQDALKARG IGVDTQAFDA
     AMQRQKQAAR AAWQGSGEAA TETVWFGIKE RTGATEFLGY ETETAEAVVG ALLREGGEVE
     TLKAGDSGIV VVNQTPFYGE SGGQVGDTGT ISGPGLKARV TNTEKKLGDL FVHHVTVEEG
     TLSLGAAVEL KVDHARRSAI RANHSATHLL HEALRQVLGD HVAQKGSLVA PERLRFDISH
     PKPIDEAELT RVEEIANAVL LQNAPVVTKL MAVDEAIESG ARALFGEKYG DEVRVVSMGR
     PVDDEGWEVE GRLPNFSIEL CGGTHVSQLG EIGQITVIGE SAVGAGVRRI EAMTGTAARR
     HRATESRTLS QLAGLLKAPV ADVPERLSTL IEERRRLEKE LADARKKIAM GGASGGGDEA
     REVNGVRLMA RVVEGVEMRD LKGLADEGKS RLGSGIVAIV GVSADGKAGL VVGVTEDLTG
     RYDAVGLVRA GAGHLGGKGG GGRRDMAQAG GPDGHGAEAA LAAIAEALAA A