MSHC_CORST
ID MSHC_CORST Reviewed; 404 AA.
AC Q9FB57;
DT 02-NOV-2010, integrated into UniProtKB/Swiss-Prot.
DT 01-MAR-2001, sequence version 1.
DT 03-AUG-2022, entry version 90.
DE RecName: Full=L-cysteine:1D-myo-inositol 2-amino-2-deoxy-alpha-D-glucopyranoside ligase {ECO:0000255|HAMAP-Rule:MF_01697};
DE Short=L-Cys:GlcN-Ins ligase {ECO:0000255|HAMAP-Rule:MF_01697};
DE EC=6.3.1.13 {ECO:0000255|HAMAP-Rule:MF_01697};
DE AltName: Full=Mycothiol ligase {ECO:0000255|HAMAP-Rule:MF_01697};
DE Short=MSH ligase {ECO:0000255|HAMAP-Rule:MF_01697};
GN Name=mshC {ECO:0000255|HAMAP-Rule:MF_01697};
OS Corynebacterium striatum.
OG Plasmid pTP10.
OC Bacteria; Actinobacteria; Corynebacteriales; Corynebacteriaceae;
OC Corynebacterium.
OX NCBI_TaxID=43770;
RN [1]
RP NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RC STRAIN=M82B;
RX PubMed=10732668; DOI=10.1007/pl00008668;
RA Tauch A., Krieft S., Kalinowski J., Puehler A.;
RT "The 51,409-bp R-plasmid pTP10 from the multiresistant clinical isolate
RT Corynebacterium striatum M82B is composed of DNA segments initially
RT identified in soil bacteria and in plant, animal, and human pathogens.";
RL Mol. Gen. Genet. 263:1-11(2000).
CC -!- FUNCTION: Catalyzes the ATP-dependent condensation of GlcN-Ins and L-
CC cysteine to form L-Cys-GlcN-Ins. {ECO:0000255|HAMAP-Rule:MF_01697}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=1D-myo-inositol 2-amino-2-deoxy-alpha-D-glucopyranoside + ATP
CC + L-cysteine = 1D-myo-inositol 2-(L-cysteinylamino)-2-deoxy-alpha-D-
CC glucopyranoside + AMP + diphosphate + H(+); Xref=Rhea:RHEA:26176,
CC ChEBI:CHEBI:15378, ChEBI:CHEBI:30616, ChEBI:CHEBI:33019,
CC ChEBI:CHEBI:35235, ChEBI:CHEBI:58886, ChEBI:CHEBI:58887,
CC ChEBI:CHEBI:456215; EC=6.3.1.13; Evidence={ECO:0000255|HAMAP-
CC Rule:MF_01697};
CC -!- COFACTOR:
CC Name=Zn(2+); Xref=ChEBI:CHEBI:29105;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_01697};
CC Note=Binds 1 zinc ion per subunit. {ECO:0000255|HAMAP-Rule:MF_01697};
CC -!- SUBUNIT: Monomer. {ECO:0000255|HAMAP-Rule:MF_01697}.
CC -!- SIMILARITY: Belongs to the class-I aminoacyl-tRNA synthetase family.
CC MshC subfamily. {ECO:0000255|HAMAP-Rule:MF_01697}.
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DR EMBL; AF024666; AAG03366.1; -; Genomic_DNA.
DR RefSeq; NP_862232.1; NC_004939.1.
DR RefSeq; WP_011116973.1; NZ_NRIP01000023.1.
DR AlphaFoldDB; Q9FB57; -.
DR SMR; Q9FB57; -.
DR GO; GO:0004812; F:aminoacyl-tRNA ligase activity; IEA:InterPro.
DR GO; GO:0005524; F:ATP binding; IEA:UniProtKB-KW.
DR GO; GO:0035446; F:cysteine-glucosaminylinositol ligase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0008270; F:zinc ion binding; IEA:UniProtKB-UniRule.
DR GO; GO:0010125; P:mycothiol biosynthetic process; IEA:UniProtKB-UniRule.
DR GO; GO:0006418; P:tRNA aminoacylation for protein translation; IEA:InterPro.
DR CDD; cd00672; CysRS_core; 1.
DR Gene3D; 3.40.50.620; -; 1.
DR HAMAP; MF_01697; MshC; 1.
DR InterPro; IPR024909; Cys-tRNA/MSH_ligase.
DR InterPro; IPR017812; Mycothiol_ligase_MshC.
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; PF01406; tRNA-synt_1e; 1.
DR PRINTS; PR00983; TRNASYNTHCYS.
DR SUPFAM; SSF47323; SSF47323; 1.
DR TIGRFAMs; TIGR03447; mycothiol_MshC; 1.
PE 3: Inferred from homology;
KW ATP-binding; Ligase; Metal-binding; Nucleotide-binding; Plasmid; Zinc.
FT CHAIN 1..404
FT /note="L-cysteine:1D-myo-inositol 2-amino-2-deoxy-alpha-D-
FT glucopyranoside ligase"
FT /id="PRO_0000400442"
FT MOTIF 49..59
FT /note="'HIGH' region"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01697"
FT MOTIF 188..193
FT /note="'ERGGDP' region"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01697"
FT MOTIF 290..294
FT /note="'KMSKS' region"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01697"
FT BINDING 47..50
FT /ligand="L-cysteinyl-5'-AMP"
FT /ligand_id="ChEBI:CHEBI:144924"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01697"
FT BINDING 47
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01697"
FT BINDING 62
FT /ligand="L-cysteinyl-5'-AMP"
FT /ligand_id="ChEBI:CHEBI:144924"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01697"
FT BINDING 85..87
FT /ligand="L-cysteinyl-5'-AMP"
FT /ligand_id="ChEBI:CHEBI:144924"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01697"
FT BINDING 228
FT /ligand="L-cysteinyl-5'-AMP"
FT /ligand_id="ChEBI:CHEBI:144924"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01697"
FT BINDING 232
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01697"
FT BINDING 250..252
FT /ligand="L-cysteinyl-5'-AMP"
FT /ligand_id="ChEBI:CHEBI:144924"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01697"
FT BINDING 257
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01697"
FT BINDING 284
FT /ligand="L-cysteinyl-5'-AMP"
FT /ligand_id="ChEBI:CHEBI:144924"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01697"
SQ SEQUENCE 404 AA; 44088 MW; 42388A77C5ABAA6A CRC64;
MHAWPDPSVP AVAGTPVPLK LFDTADQRVK EVDTTPDANG EVGMYVCGIT PYDSTHLGHA
ATYLTFDLAQ RQLLANGHKV HYVQNITDVD DPLFERAERD GVDWRELGTS QINLFRSDME
ILSVIPPCDY IGAMESVDEV IAMVQQLLDA GAAYELDQGD IYASIDATEQ FGYESNLDRA
TMEEYFAERG GDPDREGKRD PLDALVWRGH REGEPAWDSP FGPGRPGWHV ECSAIATNRL
GSHFAIQGGG SDLAFPHHEF SAAHAEAALK VERMAGHYVH AGMIALDGVK MSKSLGNLVF
VHKLSEAGHD PSAIRLAVFA GHYREDRDFS DAILAEAEER LTRWREQLAG EVSEAEATEV
VDKLRAILAD DLNTPEALSL LDGAAGDCNQ IIATALDGLL GVRI
