ID   IOLE_SALPB              Reviewed;         301 AA.
AC   A9N563;
DT   14-OCT-2008, integrated into UniProtKB/Swiss-Prot.
DT   05-FEB-2008, sequence version 1.
DT   25-MAY-2022, entry version 68.
DE   RecName: Full=Inosose dehydratase {ECO:0000255|HAMAP-Rule:MF_01672};
DE            EC=4.2.1.44 {ECO:0000255|HAMAP-Rule:MF_01672};
DE   AltName: Full=2-keto-myo-inositol dehydratase {ECO:0000255|HAMAP-Rule:MF_01672};
DE            Short=2KMI dehydratase {ECO:0000255|HAMAP-Rule:MF_01672};
GN   Name=iolE {ECO:0000255|HAMAP-Rule:MF_01672}; OrderedLocusNames=SPAB_05571;
OS   Salmonella paratyphi B (strain ATCC BAA-1250 / SPB7).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC   Enterobacteriaceae; Salmonella.
OX   NCBI_TaxID=1016998;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC BAA-1250 / SPB7;
RG   The Salmonella enterica serovar Paratyphi B Genome Sequencing Project;
RA   McClelland M., Sanderson E.K., Porwollik S., Spieth J., Clifton W.S.,
RA   Fulton R., Cordes M., Wollam A., Shah N., Pepin K., Bhonagiri V., Nash W.,
RA   Johnson M., Thiruvilangam P., Wilson R.;
RL   Submitted (NOV-2007) to the EMBL/GenBank/DDBJ databases.
CC   -!- FUNCTION: Catalyzes the dehydration of inosose (2-keto-myo-inositol,
CC       2KMI or 2,4,6/3,5-pentahydroxycyclohexanone) to 3D-(3,5/4)-
CC       trihydroxycyclohexane-1,2-dione (D-2,3-diketo-4-deoxy-epi-inositol).
CC       {ECO:0000255|HAMAP-Rule:MF_01672}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=scyllo-inosose = 3D-3,5/4-trihydroxycyclohexane-1,2-dione +
CC         H2O; Xref=Rhea:RHEA:14065, ChEBI:CHEBI:15377, ChEBI:CHEBI:17811,
CC         ChEBI:CHEBI:28446; EC=4.2.1.44; Evidence={ECO:0000255|HAMAP-
CC         Rule:MF_01672};
CC   -!- COFACTOR:
CC       Name=glutathione; Xref=ChEBI:CHEBI:57925;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01672};
CC   -!- COFACTOR:
CC       Name=Co(2+); Xref=ChEBI:CHEBI:48828;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01672};
CC       Name=Mn(2+); Xref=ChEBI:CHEBI:29035;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01672};
CC   -!- SIMILARITY: Belongs to the IolE/MocC family. {ECO:0000255|HAMAP-
CC       Rule:MF_01672}.
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DR   EMBL; CP000886; ABX70840.1; -; Genomic_DNA.
DR   AlphaFoldDB; A9N563; -.
DR   SMR; A9N563; -.
DR   KEGG; spq:SPAB_05571; -.
DR   PATRIC; fig|1016998.12.peg.5222; -.
DR   HOGENOM; CLU_059523_0_0_6; -.
DR   OMA; YDSRPEL; -.
DR   Proteomes; UP000008556; Chromosome.
DR   GO; GO:0030145; F:manganese ion binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0050114; F:myo-inosose-2 dehydratase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0019310; P:inositol catabolic process; IEA:UniProtKB-UniRule.
DR   HAMAP; MF_01672; IolE; 1.
DR   InterPro; IPR023952; IolE.
DR   InterPro; IPR030823; IolE/MocC.
DR   InterPro; IPR036237; Xyl_isomerase-like_sf.
DR   InterPro; IPR013022; Xyl_isomerase-like_TIM-brl.
DR   Pfam; PF01261; AP_endonuc_2; 1.
DR   SUPFAM; SSF51658; SSF51658; 1.
DR   TIGRFAMs; TIGR04379; myo_inos_iolE; 1.
PE   3: Inferred from homology;
KW   Cobalt; Lyase; Manganese.
FT   CHAIN           1..301
FT                   /note="Inosose dehydratase"
FT                   /id="PRO_0000352378"
SQ   SEQUENCE   301 AA;  33876 MW;  64B3BE84E3958940 CRC64;
     MYNVKKSIKL GIAPIGWRND DIPEIGKENT YKQILSDAAL TGFSGTEVGG CYPQDPAELN
     KELMLRGLEI PGQWFSSFII RDGIASAMNA FEQHCAYLQA IHAYVAVVSE QTYSIQGIID
     KCVYTEKPNF SDSEWQLLCE GLNALGKIAN AHGLKLAFHH HMGTGVQTLP EVDRLMENTD
     PQFVHLLFDT GHIYVSDGDV MPLLSKHFDR IKHVHFKDVR NEKLKACRLA KKSFLNSFLD
     GVFTVPGDGN IDFKSVLAYL VGHQYSGWIV VEAEQDPKKY NPLEYAQKGK KHIDELLKNY
     L