ID   SYC_PROM1               Reviewed;         500 AA.
AC   A2C3T6;
DT   26-FEB-2008, integrated into UniProtKB/Swiss-Prot.
DT   20-FEB-2007, sequence version 1.
DT   03-AUG-2022, entry version 90.
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=NATL1_15891;
OS   Prochlorococcus marinus (strain NATL1A).
OC   Bacteria; Cyanobacteria; Synechococcales; Prochlorococcaceae;
OC   Prochlorococcus.
OX   NCBI_TaxID=167555;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=NATL1A;
RX   PubMed=18159947; DOI=10.1371/journal.pgen.0030231;
RA   Kettler G.C., Martiny A.C., Huang K., Zucker J., Coleman M.L., Rodrigue S.,
RA   Chen F., Lapidus A., Ferriera S., Johnson J., Steglich C., Church G.M.,
RA   Richardson P., Chisholm S.W.;
RT   "Patterns and implications of gene gain and loss in the evolution of
RT   Prochlorococcus.";
RL   PLoS Genet. 3:2515-2528(2007).
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; CP000553; ABM76146.1; -; Genomic_DNA.
DR   RefSeq; WP_011824158.1; NC_008819.1.
DR   AlphaFoldDB; A2C3T6; -.
DR   SMR; A2C3T6; -.
DR   STRING; 167555.NATL1_15891; -.
DR   PRIDE; A2C3T6; -.
DR   EnsemblBacteria; ABM76146; ABM76146; NATL1_15891.
DR   KEGG; pme:NATL1_15891; -.
DR   eggNOG; COG0215; Bacteria.
DR   HOGENOM; CLU_013528_0_1_3; -.
DR   OMA; AKYWMHN; -.
DR   Proteomes; UP000002592; 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; Zinc.
FT   CHAIN           1..500
FT                   /note="Cysteine--tRNA ligase"
FT                   /id="PRO_1000071075"
FT   MOTIF           31..41
FT                   /note="'HIGH' region"
FT   MOTIF           270..274
FT                   /note="'KMSKS' region"
FT   BINDING         29
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00041"
FT   BINDING         213
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00041"
FT   BINDING         238
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00041"
FT   BINDING         242
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00041"
FT   BINDING         273
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00041"
SQ   SEQUENCE   500 AA;  57428 MW;  7747EE94F7C92011 CRC64;
     MSLKFTNTLS KKKEDFISIN PNQVKIYCCG VTVYDLCHLG HARSYLNWDV LRRFLIWKGF
     EVKFVQNFTD IDDKIINRAN KEGCSTDELS ERNIDEFHKD MDTLSILRPT SMPRATKCLH
     QIINFIEELE QKKVAYSSNG DVYFSVNKHK NYGKLSGREI ENQIDNAAGR LKTNQKESKK
     NSLDFALWKK SNSGEVSYSS PWGNGRPGWH IECSAMVKQE LGESIDIHLG GSDLIFPHHE
     NEIAQSEACN GKELAKYWLH NGMVNVGGEK MSKSLGNFTT IRSLLEEGIS PMTLRFFVLQ
     TNYRKPLDFT QEALKAASKG WERLNNCLSF GYIYKIKDQA KNEIILDKPI KKSANTNLDK
     ESFKLLSDFE RYMDDDLNTS GALSILFELS QPIRKIINFL KEKDINEVDQ DELNQVFYKW
     ELLSELAAVL GLKVNLNHEN PKNNPELDTN KIEELIKKRS LAKANKDFLL ADKIRDDFKN
     IGIDLIDKPK GVTEWKQLSD