SYA_METST
ID SYA_METST Reviewed; 903 AA.
AC Q2NEW4;
DT 02-SEP-2008, integrated into UniProtKB/Swiss-Prot.
DT 07-FEB-2006, sequence version 1.
DT 03-AUG-2022, entry version 91.
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=Msp_1262;
OS Methanosphaera stadtmanae (strain ATCC 43021 / DSM 3091 / JCM 11832 /
OS MCB-3).
OC Archaea; Euryarchaeota; Methanomada group; Methanobacteria;
OC Methanobacteriales; Methanobacteriaceae; Methanosphaera.
OX NCBI_TaxID=339860;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 43021 / DSM 3091 / JCM 11832 / MCB-3;
RX PubMed=16385054; DOI=10.1128/jb.188.2.642-658.2006;
RA Fricke W.F., Seedorf H., Henne A., Kruer M., Liesegang H., Hedderich R.,
RA Gottschalk G., Thauer R.K.;
RT "The genome sequence of Methanosphaera stadtmanae reveals why this human
RT intestinal archaeon is restricted to methanol and H2 for methane formation
RT and ATP synthesis.";
RL J. Bacteriol. 188:642-658(2006).
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; CP000102; ABC57639.1; -; Genomic_DNA.
DR RefSeq; WP_011406838.1; NC_007681.1.
DR AlphaFoldDB; Q2NEW4; -.
DR SMR; Q2NEW4; -.
DR STRING; 339860.Msp_1262; -.
DR PRIDE; Q2NEW4; -.
DR EnsemblBacteria; ABC57639; ABC57639; Msp_1262.
DR GeneID; 41325832; -.
DR KEGG; mst:Msp_1262; -.
DR eggNOG; arCOG01255; Archaea.
DR HOGENOM; CLU_004485_4_0_2; -.
DR OMA; YHHTMFE; -.
DR OrthoDB; 7896at2157; -.
DR Proteomes; UP000001931; 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:0002161; F:aminoacyl-tRNA editing activity; IEA:UniProt.
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_A; Ala_tRNA_synth_A; 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; IPR022429; Ala-tRNA_lgiase_arc.
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; TIGR03683; A-tRNA_syn_arch; 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..903
FT /note="Alanine--tRNA ligase"
FT /id="PRO_0000347888"
FT BINDING 591
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00036"
FT BINDING 595
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00036"
FT BINDING 695
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00036"
FT BINDING 699
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00036"
SQ SEQUENCE 903 AA; 102117 MW; 832CC37BC029CE3D CRC64;
MTYELEQLGY KKQVCQKCGN TFWSIRERAT CGDAPCDEYE FIGNPVTDKQ YDLMGIQKKF
KGFFKDHGHT PINRYPVLAK RWRNDVFLVG ASIYDFQPWV TSGMVRPPAN PLVVAQPSIR
LNDVDNVGRT GRHMTCFTMG AHHAFNTDET PIYWKNETLR YCHEFLVSIG INPEEITYIE
SWWKGGGNEG PSFEICAHGV ELATLVFIQY ATTKDGLKEI PLKIVDTGYG LERIAWVSQG
TPTAYDATFG SVIDKLTDIS GVELNTEILS ENARIAGMMD IEDISDLKLL RKKVADKLSL
DPDMLKKTTA PMEAIYIVAD HTRCLSFMLA DGIIPSNVKE GYLARLVLRR TVKYMNELGL
NESLSDIMKM QVDYLSKTYP EIKDNKDHII NITDLEEERY HTTLTKGKNL VKRSIKTLKK
QNKKSFPTDM LINFYDSHGI PPETVEAISK ENAFDANIPD NFYTQIAAAH EEEEEEEIEE
MELNFPKTKL SFYDDLKQRT FTAKVLGVVD SNKIILNQTI YYPEGGGQPS DIGTITRVNG
EVLNITYAQK VDGIVLHHVA KEDESKLDNI VGEEITGEID SKRRDLLTRN HTATHLVIAS
AREVLGKHIW QAGAQKGLDK TRIDLSHYKR ISHEEVQEIE RLANKRVQEN HPVNIQWYDR
TDAEVKYGFK LYQGGIVPGK NIRVVEIPGI DVQACAGTHC EKTGDIGVIK LLRTERVQDG
VERLEYAVSD SGIKKIQDDD DIIRNSSDVF GVDAEQLPRT CKRFFNEWKE QQKRIKSLEK
QLAQVKIFSL ENEIANINGY NVITEVLDVD NNQLREIAIN LVEKEEVADI AILINNNGNI
VASSNNKILE KGMKMGDVVN DIGKFLGGRG GGKPTLAQGA KMTDLSRKDE AFESVKEQIR
SWN