ID   GMHA_GEOSM              Reviewed;         192 AA.
AC   C6E6C5;
DT   22-SEP-2009, integrated into UniProtKB/Swiss-Prot.
DT   01-SEP-2009, sequence version 1.
DT   27-MAR-2024, entry version 71.
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=GM21_1712;
OS   Geobacter sp. (strain M21).
OC   Bacteria; Thermodesulfobacteriota; Desulfuromonadia; Geobacterales;
OC   Geobacteraceae; Geobacter.
OX   NCBI_TaxID=443144;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=M21;
RG   US DOE Joint Genome Institute;
RA   Lucas S., Copeland A., Lapidus A., Glavina del Rio T., Dalin E., Tice H.,
RA   Bruce D., Goodwin L., Pitluck S., Saunders E., Brettin T., Detter J.C.,
RA   Han C., Larimer F., Land M., Hauser L., Kyrpides N., Ovchinnikova G.,
RA   Lovley D.;
RT   "Complete sequence of Geobacter sp. M21.";
RL   Submitted (JUL-2009) to the EMBL/GenBank/DDBJ databases.
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; Evidence={ECO:0000255|HAMAP-
CC         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; CP001661; ACT17766.1; -; Genomic_DNA.
DR   AlphaFoldDB; C6E6C5; -.
DR   SMR; C6E6C5; -.
DR   STRING; 443144.GM21_1712; -.
DR   KEGG; gem:GM21_1712; -.
DR   eggNOG; COG0279; Bacteria.
DR   HOGENOM; CLU_080999_4_0_7; -.
DR   OrthoDB; 9810929at2; -.
DR   UniPathway; UPA00041; UER00436.
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   NCBIfam; TIGR00441; gmhA; 1.
DR   PANTHER; PTHR30390:SF6; DNAA INITIATOR-ASSOCIATING PROTEIN DIAA; 1.
DR   PANTHER; PTHR30390; SEDOHEPTULOSE 7-PHOSPHATE ISOMERASE / DNAA INITIATOR-ASSOCIATING FACTOR FOR REPLICATION INITIATION; 1.
DR   Pfam; PF13580; SIS_2; 1.
DR   SUPFAM; SSF53697; SIS domain; 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_1000202420"
FT   DOMAIN          34..192
FT                   /note="SIS"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00067"
FT   BINDING         49..51
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00067"
FT   BINDING         58
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00067"
FT   BINDING         62
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00067"
FT   BINDING         62
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00067"
FT   BINDING         91..92
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00067"
FT   BINDING         117..119
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00067"
FT   BINDING         122
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00067"
FT   BINDING         169
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00067"
FT   BINDING         169
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00067"
FT   BINDING         177
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00067"
SQ   SEQUENCE   192 AA;  20465 MW;  68F0CA9844A89991 CRC64;
     MLEEIKAQLR AHCEVMTALQ GELSPAIESA VSLVVDAYRA GNKLLVMGNG GSAADAQHFV
     AEMVGRFKLE RRALPAIALH TDTSILTAIG NDYGFDRIFS RQVEAHAAAG DVVVGISTSG
     NSPNVQLALE LAREKGCRTV ALLGKDGGSI KSVAELPLIV PSNDTPRIQE GHITIIHIIC
     DLVERELFLK GN
//