IOLE_HAES1
ID IOLE_HAES1 Reviewed; 298 AA.
AC Q0I5A5;
DT 14-OCT-2008, integrated into UniProtKB/Swiss-Prot.
DT 03-OCT-2006, sequence version 1.
DT 25-MAY-2022, entry version 79.
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=HS_1577;
OS Haemophilus somnus (strain 129Pt) (Histophilus somni).
OC Bacteria; Proteobacteria; Gammaproteobacteria; Pasteurellales;
OC Pasteurellaceae; Histophilus.
OX NCBI_TaxID=205914;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=129Pt;
RX PubMed=17172329; DOI=10.1128/jb.01422-06;
RA Challacombe J.F., Duncan A.J., Brettin T.S., Bruce D., Chertkov O.,
RA Detter J.C., Han C.S., Misra M., Richardson P., Tapia R., Thayer N.,
RA Xie G., Inzana T.J.;
RT "Complete genome sequence of Haemophilus somnus (Histophilus somni) strain
RT 129Pt and comparison to Haemophilus ducreyi 35000HP and Haemophilus
RT influenzae Rd.";
RL J. Bacteriol. 189:1890-1898(2007).
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; CP000436; ABI25845.1; -; Genomic_DNA.
DR RefSeq; WP_011609723.1; NC_008309.1.
DR AlphaFoldDB; Q0I5A5; -.
DR SMR; Q0I5A5; -.
DR STRING; 205914.HS_1577; -.
DR EnsemblBacteria; ABI25845; ABI25845; HS_1577.
DR GeneID; 56965690; -.
DR KEGG; hso:HS_1577; -.
DR eggNOG; COG1082; Bacteria.
DR HOGENOM; CLU_059523_0_0_6; -.
DR OMA; YDSRPEL; -.
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..298
FT /note="Inosose dehydratase"
FT /id="PRO_0000352369"
SQ SEQUENCE 298 AA; 33630 MW; CACFC6B2E4B1314C CRC64;
MKAENVKLGI APIGWTNDDL PEIGKENTFE QCVSEMALAG FTGSEVGSKY PRDIDVLKRK
LDLRGIQICN AWFSTFFVDG KKEETIKGFI EHRDFLHAMG AKVIGCSEQS RSIQGQKKAI
FKEKTIFTEA EWQLLAEGYN ELAKLAAEKG MKVCLHHHMG TGIQTPAEID KYMEITNDDV
YLLFDSGHLY YSEGSQQVML EVLEKYIHRV VHVHLKDVRD EVVAEVKAND LSFLEGVVKG
TFTVPGDGVI DFKPIFDILE KYDYKGWMVV EAEQDPAIAN PLEYAIKGRQ YIREVAGV