ID   RIHA_ECOLC              Reviewed;         311 AA.
AC   B1IYF7;
DT   20-MAY-2008, integrated into UniProtKB/Swiss-Prot.
DT   29-APR-2008, sequence version 1.
DT   25-MAY-2022, entry version 69.
DE   RecName: Full=Pyrimidine-specific ribonucleoside hydrolase RihA {ECO:0000255|HAMAP-Rule:MF_01431};
DE            EC=3.2.-.- {ECO:0000255|HAMAP-Rule:MF_01431};
DE   AltName: Full=Cytidine/uridine-specific hydrolase {ECO:0000255|HAMAP-Rule:MF_01431};
GN   Name=rihA {ECO:0000255|HAMAP-Rule:MF_01431}; OrderedLocusNames=EcolC_2994;
OS   Escherichia coli (strain ATCC 8739 / DSM 1576 / NBRC 3972 / NCIMB 8545 /
OS   WDCM 00012 / Crooks).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC   Enterobacteriaceae; Escherichia.
OX   NCBI_TaxID=481805;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 8739 / DSM 1576 / NBRC 3972 / NCIMB 8545 / WDCM 00012 / Crooks;
RA   Copeland A., Lucas S., Lapidus A., Glavina del Rio T., Dalin E., Tice H.,
RA   Bruce D., Goodwin L., Pitluck S., Kiss H., Brettin T., Detter J.C., Han C.,
RA   Kuske C.R., Schmutz J., Larimer F., Land M., Hauser L., Kyrpides N.,
RA   Mikhailova N., Ingram L., Richardson P.;
RT   "Complete sequence of Escherichia coli C str. ATCC 8739.";
RL   Submitted (FEB-2008) to the EMBL/GenBank/DDBJ databases.
CC   -!- FUNCTION: Hydrolyzes with equal efficiency cytidine or uridine to
CC       ribose and cytosine or uracil, respectively. {ECO:0000255|HAMAP-
CC       Rule:MF_01431}.
CC   -!- SIMILARITY: Belongs to the IUNH family. RihA subfamily.
CC       {ECO:0000255|HAMAP-Rule:MF_01431}.
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DR   EMBL; CP000946; ACA78619.1; -; Genomic_DNA.
DR   RefSeq; WP_001207501.1; NZ_CP022959.1.
DR   AlphaFoldDB; B1IYF7; -.
DR   SMR; B1IYF7; -.
DR   KEGG; ecl:EcolC_2994; -.
DR   HOGENOM; CLU_036838_2_0_6; -.
DR   OMA; HAPDIHG; -.
DR   GO; GO:0045437; F:uridine nucleosidase activity; IEA:InterPro.
DR   GO; GO:0015949; P:nucleobase-containing small molecule interconversion; IEA:InterPro.
DR   GO; GO:0006206; P:pyrimidine nucleobase metabolic process; IEA:UniProtKB-UniRule.
DR   Gene3D; 3.90.245.10; -; 1.
DR   HAMAP; MF_01431; Pyrim_hydro_RihA; 1.
DR   InterPro; IPR015910; I/U_nuclsd_hydro_CS.
DR   InterPro; IPR001910; Inosine/uridine_hydrolase_dom.
DR   InterPro; IPR023186; IUNH.
DR   InterPro; IPR022975; Pyrim_hydro_RihA.
DR   InterPro; IPR036452; Ribo_hydro-like.
DR   PANTHER; PTHR12304; PTHR12304; 1.
DR   Pfam; PF01156; IU_nuc_hydro; 1.
DR   SUPFAM; SSF53590; SSF53590; 1.
DR   PROSITE; PS01247; IUNH; 1.
PE   3: Inferred from homology;
KW   Glycosidase; Hydrolase.
FT   CHAIN           1..311
FT                   /note="Pyrimidine-specific ribonucleoside hydrolase RihA"
FT                   /id="PRO_1000087434"
FT   ACT_SITE        240
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01431"
SQ   SEQUENCE   311 AA;  33793 MW;  E60000AD38059C8A CRC64;
     MALPILLDCD PGHDDAIAIV LALASPELDV KAITSSAGNQ TPEKTLRNVL RMLTLLNRTD
     IPVAGGAVKP LMRELIIADN VHGESGLDGP ALPEPAFAPQ NCTAVELMAK TLRESAEPVT
     IVSTGPQTNV ALLLNSHPEL HSKIARIVIM GGAMGLGNWT PAAEFNIYVD PEAAEIVFQS
     GIPVVMAGLD VTHKAQIHVE DTERFRAIGN PVSTIVAELL DFFLEYHKDE KWGFVGAPLH
     DPCTIAWLLK PELFTSVERW VGVETQGKYT QGMTVVDYYY LTGNKPNATV MVDVDRQGFV
     DLLADRLKFY A