ID   DGOD_XANCB              Reviewed;         382 AA.
AC   B0RTW1;
DT   14-OCT-2008, integrated into UniProtKB/Swiss-Prot.
DT   20-MAY-2008, sequence version 1.
DT   03-AUG-2022, entry version 80.
DE   RecName: Full=D-galactonate dehydratase {ECO:0000255|HAMAP-Rule:MF_01289};
DE            Short=GalD {ECO:0000255|HAMAP-Rule:MF_01289};
DE            EC=4.2.1.6 {ECO:0000255|HAMAP-Rule:MF_01289};
GN   Name=dgoD {ECO:0000255|HAMAP-Rule:MF_01289};
GN   OrderedLocusNames=xcc-b100_2515;
OS   Xanthomonas campestris pv. campestris (strain B100).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Xanthomonadales;
OC   Xanthomonadaceae; Xanthomonas.
OX   NCBI_TaxID=509169;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=B100;
RX   PubMed=18304669; DOI=10.1016/j.jbiotec.2007.12.013;
RA   Vorhoelter F.-J., Schneiker S., Goesmann A., Krause L., Bekel T.,
RA   Kaiser O., Linke B., Patschkowski T., Rueckert C., Schmid J., Sidhu V.K.,
RA   Sieber V., Tauch A., Watt S.A., Weisshaar B., Becker A., Niehaus K.,
RA   Puehler A.;
RT   "The genome of Xanthomonas campestris pv. campestris B100 and its use for
RT   the reconstruction of metabolic pathways involved in xanthan
RT   biosynthesis.";
RL   J. Biotechnol. 134:33-45(2008).
CC   -!- FUNCTION: Catalyzes the dehydration of D-galactonate to 2-keto-3-deoxy-
CC       D-galactonate. {ECO:0000255|HAMAP-Rule:MF_01289}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=D-galactonate = 2-dehydro-3-deoxy-D-galactonate + H2O;
CC         Xref=Rhea:RHEA:18649, ChEBI:CHEBI:12931, ChEBI:CHEBI:15377,
CC         ChEBI:CHEBI:57989; EC=4.2.1.6; Evidence={ECO:0000255|HAMAP-
CC         Rule:MF_01289};
CC   -!- COFACTOR:
CC       Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01289};
CC       Note=Binds 1 Mg(2+) ion per subunit. {ECO:0000255|HAMAP-Rule:MF_01289};
CC   -!- PATHWAY: Carbohydrate acid metabolism; D-galactonate degradation; D-
CC       glyceraldehyde 3-phosphate and pyruvate from D-galactonate: step 1/3.
CC       {ECO:0000255|HAMAP-Rule:MF_01289}.
CC   -!- MISCELLANEOUS: Reaction proceeds via an anti dehydration.
CC       {ECO:0000255|HAMAP-Rule:MF_01289}.
CC   -!- SIMILARITY: Belongs to the mandelate racemase/muconate lactonizing
CC       enzyme family. GalD subfamily. {ECO:0000255|HAMAP-Rule:MF_01289}.
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DR   EMBL; AM920689; CAP51875.1; -; Genomic_DNA.
DR   AlphaFoldDB; B0RTW1; -.
DR   SMR; B0RTW1; -.
DR   KEGG; xca:xcc-b100_2515; -.
DR   HOGENOM; CLU_030273_3_2_6; -.
DR   OMA; PRWCFLK; -.
DR   UniPathway; UPA00081; UER00518.
DR   Proteomes; UP000001188; Chromosome.
DR   GO; GO:0008869; F:galactonate dehydratase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0000287; F:magnesium ion binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0009063; P:cellular amino acid catabolic process; IEA:InterPro.
DR   GO; GO:0034194; P:D-galactonate catabolic process; IEA:UniProtKB-UniRule.
DR   CDD; cd03325; D-galactonate_dehydratase; 1.
DR   Gene3D; 3.20.20.120; -; 1.
DR   Gene3D; 3.30.390.10; -; 1.
DR   HAMAP; MF_01289; Galacton_dehydrat; 1.
DR   InterPro; IPR036849; Enolase-like_C_sf.
DR   InterPro; IPR029017; Enolase-like_N.
DR   InterPro; IPR029065; Enolase_C-like.
DR   InterPro; IPR023592; Galactonate_deHydtase.
DR   InterPro; IPR018110; Mandel_Rmase/mucon_lact_enz_CS.
DR   InterPro; IPR013342; Mandelate_racemase_C.
DR   InterPro; IPR034593; Mandelate_racemase_DgoD-like.
DR   InterPro; IPR013341; Mandelate_racemase_N_dom.
DR   PANTHER; PTHR48080; PTHR48080; 1.
DR   Pfam; PF13378; MR_MLE_C; 1.
DR   Pfam; PF02746; MR_MLE_N; 1.
DR   SFLD; SFLDF00003; D-galactonate_dehydratase; 1.
DR   SMART; SM00922; MR_MLE; 1.
DR   SUPFAM; SSF51604; SSF51604; 1.
DR   SUPFAM; SSF54826; SSF54826; 1.
DR   PROSITE; PS00908; MR_MLE_1; 1.
DR   PROSITE; PS00909; MR_MLE_2; 1.
PE   3: Inferred from homology;
KW   Lyase; Magnesium; Metal-binding.
FT   CHAIN           1..382
FT                   /note="D-galactonate dehydratase"
FT                   /id="PRO_0000352641"
FT   ACT_SITE        185
FT                   /note="Proton donor"
FT                   /evidence="ECO:0000250"
FT   ACT_SITE        285
FT                   /note="Proton acceptor"
FT                   /evidence="ECO:0000250"
FT   BINDING         183
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01289"
FT   BINDING         209
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01289"
FT   BINDING         235
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01289"
FT   SITE            258
FT                   /note="Increases basicity of active site His"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01289"
FT   SITE            310
FT                   /note="Transition state stabilizer"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01289"
SQ   SEQUENCE   382 AA;  41929 MW;  D8F0E17E5572A6CE CRC64;
     MKITRLTTYH AAPRWLFLKV ETDEGITGWG EPVIEGRARS VEAAVHELAG YVVGKDPARI
     NDLWQTMYRA GFYRGGAILM SAIAGIDQAL WDIKGKALGV PVYELLGGLV RDRMKTYRWV
     GGDRPGAIIA QINDYRALGF DTFKFNGTEE MKLIDSARAV DAAVVKVAEI RETFGNSIDF
     GIDFHGRVGA PMAKALLREL EPFKPLFVEE PVLAEQAEYY PRLAASTCIP LAAGERMFSR
     FEFKNVLCAG GIGMVQPDLS HAGGITECVK IAAMAEAYDV GFAPHCPLGP IALAACLHVD
     FVSHNAVLQE QSIGIHYNEG ADLLDYVINK EDFHCVDGSI AALPKPGLGV EINEDMLKRA
     NENPPDWRNP VWRHADGSIA EW