ID   SYC_BUCAI               Reviewed;         464 AA.
AC   P57558;
DT   01-DEC-2000, integrated into UniProtKB/Swiss-Prot.
DT   01-DEC-2000, sequence version 1.
DT   03-AUG-2022, entry version 121.
DE   RecName: Full=Cysteine--tRNA ligase;
DE            EC=6.1.1.16;
DE   AltName: Full=Cysteinyl-tRNA synthetase;
DE            Short=CysRS;
GN   Name=cysS; OrderedLocusNames=BU487;
OS   Buchnera aphidicola subsp. Acyrthosiphon pisum (strain APS) (Acyrthosiphon
OS   pisum symbiotic bacterium).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC   Erwiniaceae; Buchnera.
OX   NCBI_TaxID=107806;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=APS;
RX   PubMed=10993077; DOI=10.1038/35024074;
RA   Shigenobu S., Watanabe H., Hattori M., Sakaki Y., Ishikawa H.;
RT   "Genome sequence of the endocellular bacterial symbiont of aphids Buchnera
RT   sp. APS.";
RL   Nature 407:81-86(2000).
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=ATP + L-cysteine + tRNA(Cys) = AMP + diphosphate + L-
CC         cysteinyl-tRNA(Cys); Xref=Rhea:RHEA:17773, Rhea:RHEA-COMP:9661,
CC         Rhea:RHEA-COMP:9679, ChEBI:CHEBI:30616, ChEBI:CHEBI:33019,
CC         ChEBI:CHEBI:35235, ChEBI:CHEBI:78442, ChEBI:CHEBI:78517,
CC         ChEBI:CHEBI:456215; EC=6.1.1.16;
CC   -!- COFACTOR:
CC       Name=Zn(2+); Xref=ChEBI:CHEBI:29105; Evidence={ECO:0000250};
CC       Note=Binds 1 zinc ion per subunit. {ECO:0000250};
CC   -!- SUBUNIT: Monomer. {ECO:0000250}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000250}.
CC   -!- SIMILARITY: Belongs to the class-I aminoacyl-tRNA synthetase family.
CC       {ECO:0000305}.
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DR   EMBL; BA000003; BAB13183.1; -; Genomic_DNA.
DR   RefSeq; NP_240297.1; NC_002528.1.
DR   RefSeq; WP_010896141.1; NC_002528.1.
DR   AlphaFoldDB; P57558; -.
DR   SMR; P57558; -.
DR   STRING; 107806.10039149; -.
DR   EnsemblBacteria; BAB13183; BAB13183; BAB13183.
DR   KEGG; buc:BU487; -.
DR   PATRIC; fig|107806.10.peg.495; -.
DR   eggNOG; COG0215; Bacteria.
DR   HOGENOM; CLU_013528_0_1_6; -.
DR   OMA; AKYWMHN; -.
DR   Proteomes; UP000001806; Chromosome.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0005524; F:ATP binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0004817; F:cysteine-tRNA ligase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0008270; F:zinc ion binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0006423; P:cysteinyl-tRNA aminoacylation; IEA:UniProtKB-UniRule.
DR   CDD; cd00672; CysRS_core; 1.
DR   Gene3D; 3.40.50.620; -; 1.
DR   HAMAP; MF_00041; Cys_tRNA_synth; 1.
DR   InterPro; IPR015803; Cys-tRNA-ligase.
DR   InterPro; IPR015273; Cys-tRNA-synt_Ia_DALR.
DR   InterPro; IPR024909; Cys-tRNA/MSH_ligase.
DR   InterPro; IPR014729; Rossmann-like_a/b/a_fold.
DR   InterPro; IPR032678; tRNA-synt_1_cat_dom.
DR   InterPro; IPR009080; tRNAsynth_Ia_anticodon-bd.
DR   PANTHER; PTHR10890; PTHR10890; 1.
DR   Pfam; PF09190; DALR_2; 1.
DR   Pfam; PF01406; tRNA-synt_1e; 1.
DR   PRINTS; PR00983; TRNASYNTHCYS.
DR   SMART; SM00840; DALR_2; 1.
DR   SUPFAM; SSF47323; SSF47323; 1.
DR   TIGRFAMs; TIGR00435; cysS; 1.
PE   3: Inferred from homology;
KW   Aminoacyl-tRNA synthetase; ATP-binding; Cytoplasm; Ligase; Metal-binding;
KW   Nucleotide-binding; Protein biosynthesis; Reference proteome; Zinc.
FT   CHAIN           1..464
FT                   /note="Cysteine--tRNA ligase"
FT                   /id="PRO_0000159366"
FT   MOTIF           30..40
FT                   /note="'HIGH' region"
FT   MOTIF           266..270
FT                   /note="'KMSKS' region"
FT   BINDING         28
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000250"
FT   BINDING         209
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000250"
FT   BINDING         234
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000250"
FT   BINDING         238
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000250"
FT   BINDING         269
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000250"
SQ   SEQUENCE   464 AA;  54541 MW;  2EBD5EADA503AAC3 CRC64;
     MLKIFNTLTS TKEIFTPIKK NRVNLYVCGV TVYDFCHIGH GRTFVVFDMI VRYLRFSGFQ
     VKYVRNITDI DDKIISKSTK EKKKINTFTA SMIKEMHKDF DLLGISVPDE EPRVTDYIDN
     IIRIITTLIK KKHAYIHKNG DVIFSIDSDP NYGTLSRQSL TSLESGSRIP LNNMKKNPLD
     FILWKSSNKE EYSWDSPWGK GRPGWHIECS AITNVFFNNS IDIHGGGSDL LFPHHENERS
     QSICFNNKSM INFWMHTGMV ILNNKKMSKS LGNVYFLRNI LKDCDAEVLR YFFLSTHYRH
     PIYYCEKNLD QAYTSLKYLY TALYDTNPFF NNEEGLNFEL EFYNAMNDDF NTPAVFSIFF
     KIARKINFLK NKDILKTNKF AFRLKYLANN LGFLFQDPKE FLQKKTTLNL LTLKEIQLLI
     EKRNIARQSK LWQEADNIRK KLMSLDIILE DLPDKTIWRK NKKS