AC4CH_VIBCH
ID AC4CH_VIBCH Reviewed; 105 AA.
AC Q9KRR0;
DT 19-JUL-2003, integrated into UniProtKB/Swiss-Prot.
DT 01-OCT-2000, sequence version 1.
DT 03-AUG-2022, entry version 84.
DE RecName: Full=N(4)-acetylcytidine amidohydrolase {ECO:0000255|HAMAP-Rule:MF_00684};
DE Short=ac4C amidohydrolase {ECO:0000255|HAMAP-Rule:MF_00684};
DE EC=3.5.1.135 {ECO:0000255|HAMAP-Rule:MF_00684};
GN OrderedLocusNames=VC_1576;
OS Vibrio cholerae serotype O1 (strain ATCC 39315 / El Tor Inaba N16961).
OC Bacteria; Proteobacteria; Gammaproteobacteria; Vibrionales; Vibrionaceae;
OC Vibrio.
OX NCBI_TaxID=243277;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 39315 / El Tor Inaba N16961;
RX PubMed=10952301; DOI=10.1038/35020000;
RA Heidelberg J.F., Eisen J.A., Nelson W.C., Clayton R.A., Gwinn M.L.,
RA Dodson R.J., Haft D.H., Hickey E.K., Peterson J.D., Umayam L.A., Gill S.R.,
RA Nelson K.E., Read T.D., Tettelin H., Richardson D.L., Ermolaeva M.D.,
RA Vamathevan J.J., Bass S., Qin H., Dragoi I., Sellers P., McDonald L.A.,
RA Utterback T.R., Fleischmann R.D., Nierman W.C., White O., Salzberg S.L.,
RA Smith H.O., Colwell R.R., Mekalanos J.J., Venter J.C., Fraser C.M.;
RT "DNA sequence of both chromosomes of the cholera pathogen Vibrio
RT cholerae.";
RL Nature 406:477-483(2000).
CC -!- FUNCTION: Catalyzes the hydrolysis of N(4)-acetylcytidine (ac4C).
CC {ECO:0000255|HAMAP-Rule:MF_00684}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=H2O + N(4)-acetylcytidine = acetate + cytidine + H(+);
CC Xref=Rhea:RHEA:62932, ChEBI:CHEBI:15377, ChEBI:CHEBI:15378,
CC ChEBI:CHEBI:17562, ChEBI:CHEBI:30089, ChEBI:CHEBI:70989;
CC EC=3.5.1.135; Evidence={ECO:0000255|HAMAP-Rule:MF_00684};
CC -!- CATALYTIC ACTIVITY:
CC Reaction=H2O + N(4)-acetyl-2'-deoxycytidine = 2'-deoxycytidine +
CC acetate + H(+); Xref=Rhea:RHEA:62936, ChEBI:CHEBI:15377,
CC ChEBI:CHEBI:15378, ChEBI:CHEBI:15698, ChEBI:CHEBI:30089,
CC ChEBI:CHEBI:146133; EC=3.5.1.135; Evidence={ECO:0000255|HAMAP-
CC Rule:MF_00684};
CC -!- CATALYTIC ACTIVITY:
CC Reaction=H2O + N(4)-acetylcytosine = acetate + cytosine + H(+);
CC Xref=Rhea:RHEA:62940, ChEBI:CHEBI:15377, ChEBI:CHEBI:15378,
CC ChEBI:CHEBI:16040, ChEBI:CHEBI:30089, ChEBI:CHEBI:146134;
CC EC=3.5.1.135; Evidence={ECO:0000255|HAMAP-Rule:MF_00684};
CC -!- SIMILARITY: Belongs to the N(4)-acetylcytidine amidohydrolase family.
CC {ECO:0000255|HAMAP-Rule:MF_00684}.
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DR EMBL; AE003852; AAF94730.1; -; Genomic_DNA.
DR PIR; B82182; B82182.
DR RefSeq; NP_231216.1; NC_002505.1.
DR RefSeq; WP_000028411.1; NZ_LT906614.1.
DR AlphaFoldDB; Q9KRR0; -.
DR SMR; Q9KRR0; -.
DR STRING; 243277.VC_1576; -.
DR DNASU; 2613955; -.
DR EnsemblBacteria; AAF94730; AAF94730; VC_1576.
DR GeneID; 57740231; -.
DR KEGG; vch:VC_1576; -.
DR PATRIC; fig|243277.26.peg.1503; -.
DR eggNOG; COG3097; Bacteria.
DR HOGENOM; CLU_152586_0_0_6; -.
DR OMA; HARQENM; -.
DR BioCyc; VCHO:VC1576-MON; -.
DR Proteomes; UP000000584; Chromosome 1.
DR GO; GO:0005829; C:cytosol; IBA:GO_Central.
DR GO; GO:0016813; F:hydrolase activity, acting on carbon-nitrogen (but not peptide) bonds, in linear amidines; IEA:UniProtKB-UniRule.
DR GO; GO:0106251; F:N4-acetylcytidine amidohydrolase activity; IEA:RHEA.
DR HAMAP; MF_00684; ac4C_amidohydr; 1.
DR InterPro; IPR008314; AC4CH.
DR InterPro; IPR007374; ASCH_domain.
DR InterPro; IPR015947; PUA-like_sf.
DR PANTHER; PTHR38088; PTHR38088; 1.
DR Pfam; PF04266; ASCH; 1.
DR PIRSF; PIRSF029143; UCP029143; 1.
DR SMART; SM01022; ASCH; 1.
DR SUPFAM; SSF88697; SSF88697; 1.
PE 3: Inferred from homology;
KW Hydrolase; Reference proteome.
FT CHAIN 1..105
FT /note="N(4)-acetylcytidine amidohydrolase"
FT /id="PRO_0000214608"
FT DOMAIN 8..93
FT /note="ASCH"
FT /evidence="ECO:0000255"
FT ACT_SITE 22
FT /note="Proton acceptor"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00684"
FT ACT_SITE 25
FT /note="Nucleophile"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00684"
FT ACT_SITE 75
FT /note="Proton donor"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00684"
SQ SEQUENCE 105 AA; 12119 MW; 3A3DBF8AAD90756B CRC64;
MSISTQITFF EFLTPLVASG QKTITIRDKS ESHYVPGTRV EVFTLETQRK VCEIDILAVE
PLKFDEINEF HAEQEAIELP KLKALIQEIY PNIDELYVIT YQLAK
