ID   SYC_STRT1               Reviewed;         447 AA.
AC   Q5M1W6;
DT   15-MAR-2005, integrated into UniProtKB/Swiss-Prot.
DT   01-FEB-2005, sequence version 1.
DT   03-AUG-2022, entry version 98.
DE   RecName: Full=Cysteine--tRNA ligase {ECO:0000255|HAMAP-Rule:MF_00041};
DE            EC=6.1.1.16 {ECO:0000255|HAMAP-Rule:MF_00041};
DE   AltName: Full=Cysteinyl-tRNA synthetase {ECO:0000255|HAMAP-Rule:MF_00041};
DE            Short=CysRS {ECO:0000255|HAMAP-Rule:MF_00041};
GN   Name=cysS {ECO:0000255|HAMAP-Rule:MF_00041}; OrderedLocusNames=str0084;
OS   Streptococcus thermophilus (strain CNRZ 1066).
OC   Bacteria; Firmicutes; Bacilli; Lactobacillales; Streptococcaceae;
OC   Streptococcus.
OX   NCBI_TaxID=299768;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=CNRZ 1066;
RX   PubMed=15543133; DOI=10.1038/nbt1034;
RA   Bolotin A., Quinquis B., Renault P., Sorokin A., Ehrlich S.D.,
RA   Kulakauskas S., Lapidus A., Goltsman E., Mazur M., Pusch G.D., Fonstein M.,
RA   Overbeek R., Kyprides N., Purnelle B., Prozzi D., Ngui K., Masuy D.,
RA   Hancy F., Burteau S., Boutry M., Delcour J., Goffeau A., Hols P.;
RT   "Complete sequence and comparative genome analysis of the dairy bacterium
RT   Streptococcus thermophilus.";
RL   Nat. Biotechnol. 22:1554-1558(2004).
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; Evidence={ECO:0000255|HAMAP-
CC         Rule:MF_00041};
CC   -!- COFACTOR:
CC       Name=Zn(2+); Xref=ChEBI:CHEBI:29105;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00041};
CC       Note=Binds 1 zinc ion per subunit. {ECO:0000255|HAMAP-Rule:MF_00041};
CC   -!- SUBUNIT: Monomer. {ECO:0000255|HAMAP-Rule:MF_00041}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_00041}.
CC   -!- SIMILARITY: Belongs to the class-I aminoacyl-tRNA synthetase family.
CC       {ECO:0000255|HAMAP-Rule:MF_00041}.
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DR   EMBL; CP000024; AAV61700.1; -; Genomic_DNA.
DR   RefSeq; WP_011225305.1; NC_006449.1.
DR   AlphaFoldDB; Q5M1W6; -.
DR   SMR; Q5M1W6; -.
DR   GeneID; 66898014; -.
DR   KEGG; stc:str0084; -.
DR   HOGENOM; CLU_013528_0_1_9; -.
DR   OMA; AKYWMHN; -.
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; Zinc.
FT   CHAIN           1..447
FT                   /note="Cysteine--tRNA ligase"
FT                   /id="PRO_0000159499"
FT   MOTIF           30..40
FT                   /note="'HIGH' region"
FT   MOTIF           268..272
FT                   /note="'KMSKS' region"
FT   BINDING         28
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00041"
FT   BINDING         211
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00041"
FT   BINDING         236
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00041"
FT   BINDING         240
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00041"
FT   BINDING         271
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00041"
SQ   SEQUENCE   447 AA;  50715 MW;  73087FFF53E13812 CRC64;
     MIKIYDTMTR SLRDFVPLTE NTVNMYVCGP TVYNYIHIGN ARSTVAFDTI RRYFEYRGYT
     VNYISNFTDV DDKIIKAANE VGISTKELSD KFITAFMEDT AQLGIKPATQ NPRVINYMDE
     IIAFVSILID KGFAYVSEGD VYFRVTKSNN YAKLANKTLE DLEIGASGRT DAETDRKEDP
     LDFALWKAAK EGEISWESPW GPGRPGWHIE CSVMATEILG DTIDIHGGGA DLEFPHHTNE
     IAQSEAKTGK TFANYWMHNG FVNVDNEKMS KSLGNFVTVH DMLKTVDGQV LRFFLATQQY
     RKPINFTEKA IHDAEVNLKY LKNTHSLPLT EEVSQAELQA YLDAFQAAMD DDFNTANGVT
     VLFDMAKWIN SGNYDETVKD AFEKILQVFG IVFEEETLDE DIEKLIEERQ AARANKDFAT
     ADRIRDELAA QGIKLLDTKE GVRWTRD