GMHA_ECO24
ID GMHA_ECO24 Reviewed; 192 AA.
AC A7ZHY1;
DT 05-FEB-2008, integrated into UniProtKB/Swiss-Prot.
DT 23-OCT-2007, sequence version 1.
DT 03-AUG-2022, entry version 75.
DE RecName: Full=Phosphoheptose isomerase {ECO:0000255|HAMAP-Rule:MF_00067};
DE EC=5.3.1.28 {ECO:0000255|HAMAP-Rule:MF_00067};
DE AltName: Full=Sedoheptulose 7-phosphate isomerase {ECO:0000255|HAMAP-Rule:MF_00067};
GN Name=gmhA {ECO:0000255|HAMAP-Rule:MF_00067};
GN OrderedLocusNames=EcE24377A_0254;
OS Escherichia coli O139:H28 (strain E24377A / ETEC).
OC Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC Enterobacteriaceae; Escherichia.
OX NCBI_TaxID=331111;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=E24377A / ETEC;
RX PubMed=18676672; DOI=10.1128/jb.00619-08;
RA Rasko D.A., Rosovitz M.J., Myers G.S.A., Mongodin E.F., Fricke W.F.,
RA Gajer P., Crabtree J., Sebaihia M., Thomson N.R., Chaudhuri R.,
RA Henderson I.R., Sperandio V., Ravel J.;
RT "The pangenome structure of Escherichia coli: comparative genomic analysis
RT of E. coli commensal and pathogenic isolates.";
RL J. Bacteriol. 190:6881-6893(2008).
CC -!- FUNCTION: Catalyzes the isomerization of sedoheptulose 7-phosphate in
CC D-glycero-D-manno-heptose 7-phosphate. {ECO:0000255|HAMAP-
CC Rule:MF_00067}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=2 D-sedoheptulose 7-phosphate = D-glycero-alpha-D-manno-
CC heptose 7-phosphate + D-glycero-beta-D-manno-heptose 7-phosphate;
CC Xref=Rhea:RHEA:27489, ChEBI:CHEBI:57483, ChEBI:CHEBI:60203,
CC ChEBI:CHEBI:60204; EC=5.3.1.28; Evidence={ECO:0000255|HAMAP-
CC Rule:MF_00067};
CC -!- COFACTOR:
CC Name=Zn(2+); Xref=ChEBI:CHEBI:29105;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_00067};
CC Note=Binds 1 zinc ion per subunit. {ECO:0000255|HAMAP-Rule:MF_00067};
CC -!- PATHWAY: Carbohydrate biosynthesis; D-glycero-D-manno-heptose 7-
CC phosphate biosynthesis; D-glycero-alpha-D-manno-heptose 7-phosphate and
CC D-glycero-beta-D-manno-heptose 7-phosphate from sedoheptulose 7-
CC phosphate: step 1/1. {ECO:0000255|HAMAP-Rule:MF_00067}.
CC -!- SUBUNIT: Homotetramer. {ECO:0000255|HAMAP-Rule:MF_00067}.
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_00067}.
CC -!- MISCELLANEOUS: The reaction produces a racemic mixture of D-glycero-
CC alpha-D-manno-heptose 7-phosphate and D-glycero-beta-D-manno-heptose 7-
CC phosphate. {ECO:0000255|HAMAP-Rule:MF_00067}.
CC -!- SIMILARITY: Belongs to the SIS family. GmhA subfamily.
CC {ECO:0000255|HAMAP-Rule:MF_00067}.
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DR EMBL; CP000800; ABV19721.1; -; Genomic_DNA.
DR RefSeq; WP_000284050.1; NC_009801.1.
DR AlphaFoldDB; A7ZHY1; -.
DR SMR; A7ZHY1; -.
DR EnsemblBacteria; ABV19721; ABV19721; EcE24377A_0254.
DR GeneID; 66671459; -.
DR KEGG; ecw:EcE24377A_0254; -.
DR HOGENOM; CLU_080999_4_0_6; -.
DR OMA; FLAHKEA; -.
DR UniPathway; UPA00041; UER00436.
DR Proteomes; UP000001122; Chromosome.
DR GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR GO; GO:0097367; F:carbohydrate derivative binding; IEA:InterPro.
DR GO; GO:0008968; F:D-sedoheptulose 7-phosphate isomerase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0008270; F:zinc ion binding; IEA:UniProtKB-UniRule.
DR GO; GO:0005975; P:carbohydrate metabolic process; IEA:UniProtKB-UniRule.
DR GO; GO:2001061; P:D-glycero-D-manno-heptose 7-phosphate biosynthetic process; IEA:UniProtKB-UniPathway.
DR CDD; cd05006; SIS_GmhA; 1.
DR HAMAP; MF_00067; GmhA; 1.
DR InterPro; IPR035461; GmhA/DiaA.
DR InterPro; IPR004515; Phosphoheptose_Isoase.
DR InterPro; IPR001347; SIS_dom.
DR InterPro; IPR046348; SIS_dom_sf.
DR Pfam; PF13580; SIS_2; 1.
DR SUPFAM; SSF53697; SSF53697; 1.
DR TIGRFAMs; TIGR00441; gmhA; 1.
DR PROSITE; PS51464; SIS; 1.
PE 3: Inferred from homology;
KW Carbohydrate metabolism; Cytoplasm; Isomerase; Metal-binding; Zinc.
FT CHAIN 1..192
FT /note="Phosphoheptose isomerase"
FT /id="PRO_1000057449"
FT DOMAIN 37..192
FT /note="SIS"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00067"
FT BINDING 52..54
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00067"
FT BINDING 61
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00067"
FT BINDING 65
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00067"
FT BINDING 65
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00067"
FT BINDING 93..94
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00067"
FT BINDING 119..121
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00067"
FT BINDING 124
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00067"
FT BINDING 172
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00067"
FT BINDING 172
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00067"
FT BINDING 180
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00067"
SQ SEQUENCE 192 AA; 20815 MW; 7A2C05E1079108B4 CRC64;
MYQDLIRNEL NEAAETLANF LKDDANIHAI QRAAVLLADS FKAGGKVLSC GNGGSHCDAM
HFAEELTGRY RENRPGYPAI AISDVSHISC VGNDFGFNDI FSRYVEAVGR EGDVLLGIST
SGNSANVIKA IAAAREKGMK VITLTGKDGG KMAGTADIEI RVPHFGYADR IQEIHIKVIH
ILIQLIEKEM VK
