HIUH_ECO57
ID HIUH_ECO57 Reviewed; 137 AA.
AC Q8XB75;
DT 02-MAY-2002, integrated into UniProtKB/Swiss-Prot.
DT 01-MAR-2002, sequence version 1.
DT 03-AUG-2022, entry version 121.
DE RecName: Full=5-hydroxyisourate hydrolase;
DE Short=HIU hydrolase;
DE Short=HIUHase;
DE EC=3.5.2.17;
DE AltName: Full=Transthyretin-like protein;
DE Short=TLP;
DE Flags: Precursor;
GN Name=hiuH; OrderedLocusNames=Z3062, ECs2708;
OS Escherichia coli O157:H7.
OC Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC Enterobacteriaceae; Escherichia.
OX NCBI_TaxID=83334;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=O157:H7 / EDL933 / ATCC 700927 / EHEC;
RX PubMed=11206551; DOI=10.1038/35054089;
RA Perna N.T., Plunkett G. III, Burland V., Mau B., Glasner J.D., Rose D.J.,
RA Mayhew G.F., Evans P.S., Gregor J., Kirkpatrick H.A., Posfai G.,
RA Hackett J., Klink S., Boutin A., Shao Y., Miller L., Grotbeck E.J.,
RA Davis N.W., Lim A., Dimalanta E.T., Potamousis K., Apodaca J.,
RA Anantharaman T.S., Lin J., Yen G., Schwartz D.C., Welch R.A.,
RA Blattner F.R.;
RT "Genome sequence of enterohaemorrhagic Escherichia coli O157:H7.";
RL Nature 409:529-533(2001).
RN [2]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=O157:H7 / Sakai / RIMD 0509952 / EHEC;
RX PubMed=11258796; DOI=10.1093/dnares/8.1.11;
RA Hayashi T., Makino K., Ohnishi M., Kurokawa K., Ishii K., Yokoyama K.,
RA Han C.-G., Ohtsubo E., Nakayama K., Murata T., Tanaka M., Tobe T., Iida T.,
RA Takami H., Honda T., Sasakawa C., Ogasawara N., Yasunaga T., Kuhara S.,
RA Shiba T., Hattori M., Shinagawa H.;
RT "Complete genome sequence of enterohemorrhagic Escherichia coli O157:H7 and
RT genomic comparison with a laboratory strain K-12.";
RL DNA Res. 8:11-22(2001).
CC -!- FUNCTION: Catalyzes the hydrolysis of 5-hydroxyisourate (HIU) to 2-oxo-
CC 4-hydroxy-4-carboxy-5-ureidoimidazoline (OHCU). {ECO:0000250}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=5-hydroxyisourate + H2O = 5-hydroxy-2-oxo-4-ureido-2,5-
CC dihydro-1H-imidazole-5-carboxylate + H(+); Xref=Rhea:RHEA:23736,
CC ChEBI:CHEBI:15377, ChEBI:CHEBI:15378, ChEBI:CHEBI:18072,
CC ChEBI:CHEBI:58639; EC=3.5.2.17;
CC -!- SUBUNIT: Homotetramer. {ECO:0000250}.
CC -!- SUBCELLULAR LOCATION: Periplasm {ECO:0000250}.
CC -!- MISCELLANEOUS: HIU hydrolysis also occurs spontaneously, but more
CC slowly.
CC -!- SIMILARITY: Belongs to the transthyretin family. 5-hydroxyisourate
CC hydrolase subfamily. {ECO:0000305}.
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DR EMBL; AE005174; AAG56983.1; -; Genomic_DNA.
DR EMBL; BA000007; BAB36131.1; -; Genomic_DNA.
DR PIR; C85815; C85815.
DR PIR; D90967; D90967.
DR RefSeq; NP_310735.1; NC_002695.1.
DR RefSeq; WP_000920132.1; NZ_SWKA01000005.1.
DR AlphaFoldDB; Q8XB75; -.
DR SMR; Q8XB75; -.
DR STRING; 155864.EDL933_2979; -.
DR EnsemblBacteria; AAG56983; AAG56983; Z3062.
DR EnsemblBacteria; BAB36131; BAB36131; ECs_2708.
DR GeneID; 912669; -.
DR KEGG; ece:Z3062; -.
DR KEGG; ecs:ECs_2708; -.
DR PATRIC; fig|386585.9.peg.2836; -.
DR eggNOG; COG2351; Bacteria.
DR HOGENOM; CLU_115536_3_0_6; -.
DR OMA; ENQNYHI; -.
DR Proteomes; UP000000558; Chromosome.
DR Proteomes; UP000002519; Chromosome.
DR GO; GO:0042597; C:periplasmic space; IEA:UniProtKB-SubCell.
DR GO; GO:0033971; F:hydroxyisourate hydrolase activity; IEA:UniProtKB-EC.
DR GO; GO:0006144; P:purine nucleobase metabolic process; IEA:UniProtKB-KW.
DR CDD; cd05822; TLP_HIUase; 1.
DR Gene3D; 2.60.40.180; -; 1.
DR InterPro; IPR014306; Hydroxyisourate_hydrolase.
DR InterPro; IPR023418; Thyroxine_BS.
DR InterPro; IPR000895; Transthyretin/HIU_hydrolase.
DR InterPro; IPR023416; Transthyretin/HIU_hydrolase_d.
DR InterPro; IPR036817; Transthyretin/HIU_hydrolase_sf.
DR InterPro; IPR023419; Transthyretin_CS.
DR PANTHER; PTHR10395; PTHR10395; 1.
DR Pfam; PF00576; Transthyretin; 1.
DR PRINTS; PR00189; TRNSTHYRETIN.
DR SMART; SM00095; TR_THY; 1.
DR SUPFAM; SSF49472; SSF49472; 1.
DR TIGRFAMs; TIGR02962; hdxy_isourate; 1.
DR PROSITE; PS00768; TRANSTHYRETIN_1; 1.
DR PROSITE; PS00769; TRANSTHYRETIN_2; 1.
PE 3: Inferred from homology;
KW Hydrolase; Periplasm; Purine metabolism; Reference proteome; Signal.
FT SIGNAL 1..23
FT /evidence="ECO:0000250"
FT CHAIN 24..137
FT /note="5-hydroxyisourate hydrolase"
FT /id="PRO_0000035773"
FT BINDING 32
FT /ligand="substrate"
FT /evidence="ECO:0000250"
FT BINDING 70
FT /ligand="substrate"
FT /evidence="ECO:0000250"
FT BINDING 134
FT /ligand="substrate"
FT /evidence="ECO:0000250"
SQ SEQUENCE 137 AA; 15537 MW; 0A8D534E6A46B9F8 CRC64;
MLKRYLVLSV VTAAFSLPSL VYAAQQNILS VHILNQQTGK PAADVTVTLE KKADNGWLQL
NTAKTDKDGR IKALWPEQTA TTGDYRVVFK TGDYFKKQNL ESFFPEIPVE FHINKVNEHY
HVPLLLSQYG YSTYRGS
