ID   CYNS_SULTO              Reviewed;         148 AA.
AC   Q972W5;
DT   31-JAN-2002, integrated into UniProtKB/Swiss-Prot.
DT   01-DEC-2001, sequence version 1.
DT   25-MAY-2022, entry version 107.
DE   RecName: Full=Cyanate hydratase {ECO:0000255|HAMAP-Rule:MF_00535};
DE            Short=Cyanase {ECO:0000255|HAMAP-Rule:MF_00535};
DE            EC=4.2.1.104 {ECO:0000255|HAMAP-Rule:MF_00535};
DE   AltName: Full=Cyanate hydrolase {ECO:0000255|HAMAP-Rule:MF_00535};
DE   AltName: Full=Cyanate lyase {ECO:0000255|HAMAP-Rule:MF_00535};
GN   Name=cynS {ECO:0000255|HAMAP-Rule:MF_00535}; OrderedLocusNames=STK_10230;
OS   Sulfurisphaera tokodaii (strain DSM 16993 / JCM 10545 / NBRC 100140 / 7)
OS   (Sulfolobus tokodaii).
OC   Archaea; Crenarchaeota; Thermoprotei; Sulfolobales; Sulfolobaceae;
OC   Sulfurisphaera.
OX   NCBI_TaxID=273063;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=DSM 16993 / JCM 10545 / NBRC 100140 / 7;
RX   PubMed=11572479; DOI=10.1093/dnares/8.4.123;
RA   Kawarabayasi Y., Hino Y., Horikawa H., Jin-no K., Takahashi M., Sekine M.,
RA   Baba S., Ankai A., Kosugi H., Hosoyama A., Fukui S., Nagai Y.,
RA   Nishijima K., Otsuka R., Nakazawa H., Takamiya M., Kato Y., Yoshizawa T.,
RA   Tanaka T., Kudoh Y., Yamazaki J., Kushida N., Oguchi A., Aoki K.,
RA   Masuda S., Yanagii M., Nishimura M., Yamagishi A., Oshima T., Kikuchi H.;
RT   "Complete genome sequence of an aerobic thermoacidophilic Crenarchaeon,
RT   Sulfolobus tokodaii strain7.";
RL   DNA Res. 8:123-140(2001).
CC   -!- FUNCTION: Catalyzes the reaction of cyanate with bicarbonate to produce
CC       ammonia and carbon dioxide. {ECO:0000255|HAMAP-Rule:MF_00535}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=cyanate + 3 H(+) + hydrogencarbonate = 2 CO2 + NH4(+);
CC         Xref=Rhea:RHEA:11120, ChEBI:CHEBI:15378, ChEBI:CHEBI:16526,
CC         ChEBI:CHEBI:17544, ChEBI:CHEBI:28938, ChEBI:CHEBI:29195;
CC         EC=4.2.1.104; Evidence={ECO:0000255|HAMAP-Rule:MF_00535};
CC   -!- SIMILARITY: Belongs to the cyanase family. {ECO:0000255|HAMAP-
CC       Rule:MF_00535}.
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DR   EMBL; BA000023; BAB66048.1; -; Genomic_DNA.
DR   RefSeq; WP_010979030.1; NC_003106.2.
DR   AlphaFoldDB; Q972W5; -.
DR   SMR; Q972W5; -.
DR   EnsemblBacteria; BAB66048; BAB66048; STK_10230.
DR   GeneID; 1459002; -.
DR   KEGG; sto:STK_10230; -.
DR   PATRIC; fig|273063.9.peg.1151; -.
DR   OMA; YELVMIN; -.
DR   OrthoDB; 118842at2157; -.
DR   Proteomes; UP000001015; Chromosome.
DR   GO; GO:0008824; F:cyanate hydratase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0003677; F:DNA binding; IEA:InterPro.
DR   GO; GO:0009439; P:cyanate metabolic process; IEA:UniProtKB-UniRule.
DR   CDD; cd00559; Cyanase_C; 1.
DR   Gene3D; 1.10.260.40; -; 1.
DR   Gene3D; 3.30.1160.10; -; 1.
DR   HAMAP; MF_00535; Cyanate_hydrat; 1.
DR   InterPro; IPR008076; Cyanase.
DR   InterPro; IPR003712; Cyanate_lyase_C.
DR   InterPro; IPR036581; Cyanate_lyase_C_sf.
DR   InterPro; IPR010982; Lambda_DNA-bd_dom_sf.
DR   PANTHER; PTHR34186; PTHR34186; 1.
DR   Pfam; PF02560; Cyanate_lyase; 1.
DR   PIRSF; PIRSF001263; Cyanate_hydratas; 1.
DR   PRINTS; PR01693; CYANASE.
DR   SMART; SM01116; Cyanate_lyase; 1.
DR   SUPFAM; SSF47413; SSF47413; 1.
DR   SUPFAM; SSF55234; SSF55234; 1.
DR   TIGRFAMs; TIGR00673; cynS; 1.
PE   3: Inferred from homology;
KW   Lyase; Reference proteome.
FT   CHAIN           1..148
FT                   /note="Cyanate hydratase"
FT                   /id="PRO_0000187533"
FT   ACT_SITE        89
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00535"
FT   ACT_SITE        92
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00535"
FT   ACT_SITE        115
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00535"
SQ   SEQUENCE   148 AA;  17410 MW;  33CB637A45B3BB85 CRC64;
     MIDKKELREI SLKKKREKRL TWEEIGKYLG RDKVYAAMLL YGYAQATEEE ADKIITLLDL
     PKELKPAFLD APMRTPAQPW PPTDPFIYRL YEGVLLYGPV IKDVAHELFG DGIMSMIDVK
     IYVDKVIENN YPRMVLTFNG KWLYYSKW