KDUI_XANAC
ID KDUI_XANAC Reviewed; 284 AA.
AC Q8PR01;
DT 25-JUL-2003, integrated into UniProtKB/Swiss-Prot.
DT 01-OCT-2002, sequence version 1.
DT 03-AUG-2022, entry version 107.
DE RecName: Full=4-deoxy-L-threo-5-hexosulose-uronate ketol-isomerase {ECO:0000255|HAMAP-Rule:MF_00687};
DE EC=5.3.1.17 {ECO:0000255|HAMAP-Rule:MF_00687};
DE AltName: Full=5-keto-4-deoxyuronate isomerase {ECO:0000255|HAMAP-Rule:MF_00687};
DE AltName: Full=DKI isomerase {ECO:0000255|HAMAP-Rule:MF_00687};
GN Name=kduI {ECO:0000255|HAMAP-Rule:MF_00687}; OrderedLocusNames=XAC0168;
OS Xanthomonas axonopodis pv. citri (strain 306).
OC Bacteria; Proteobacteria; Gammaproteobacteria; Xanthomonadales;
OC Xanthomonadaceae; Xanthomonas.
OX NCBI_TaxID=190486;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=306;
RX PubMed=12024217; DOI=10.1038/417459a;
RA da Silva A.C.R., Ferro J.A., Reinach F.C., Farah C.S., Furlan L.R.,
RA Quaggio R.B., Monteiro-Vitorello C.B., Van Sluys M.A., Almeida N.F. Jr.,
RA Alves L.M.C., do Amaral A.M., Bertolini M.C., Camargo L.E.A., Camarotte G.,
RA Cannavan F., Cardozo J., Chambergo F., Ciapina L.P., Cicarelli R.M.B.,
RA Coutinho L.L., Cursino-Santos J.R., El-Dorry H., Faria J.B.,
RA Ferreira A.J.S., Ferreira R.C.C., Ferro M.I.T., Formighieri E.F.,
RA Franco M.C., Greggio C.C., Gruber A., Katsuyama A.M., Kishi L.T.,
RA Leite R.P., Lemos E.G.M., Lemos M.V.F., Locali E.C., Machado M.A.,
RA Madeira A.M.B.N., Martinez-Rossi N.M., Martins E.C., Meidanis J.,
RA Menck C.F.M., Miyaki C.Y., Moon D.H., Moreira L.M., Novo M.T.M.,
RA Okura V.K., Oliveira M.C., Oliveira V.R., Pereira H.A., Rossi A.,
RA Sena J.A.D., Silva C., de Souza R.F., Spinola L.A.F., Takita M.A.,
RA Tamura R.E., Teixeira E.C., Tezza R.I.D., Trindade dos Santos M.,
RA Truffi D., Tsai S.M., White F.F., Setubal J.C., Kitajima J.P.;
RT "Comparison of the genomes of two Xanthomonas pathogens with differing host
RT specificities.";
RL Nature 417:459-463(2002).
CC -!- FUNCTION: Catalyzes the isomerization of 5-dehydro-4-deoxy-D-
CC glucuronate to 3-deoxy-D-glycero-2,5-hexodiulosonate.
CC {ECO:0000255|HAMAP-Rule:MF_00687}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=5-dehydro-4-deoxy-D-glucuronate = 3-deoxy-D-glycero-2,5-
CC hexodiulosonate; Xref=Rhea:RHEA:23896, ChEBI:CHEBI:17117,
CC ChEBI:CHEBI:29071; EC=5.3.1.17; Evidence={ECO:0000255|HAMAP-
CC Rule:MF_00687};
CC -!- COFACTOR:
CC Name=Zn(2+); Xref=ChEBI:CHEBI:29105;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_00687};
CC Note=Binds 1 zinc ion per subunit. {ECO:0000255|HAMAP-Rule:MF_00687};
CC -!- PATHWAY: Glycan metabolism; pectin degradation; 2-dehydro-3-deoxy-D-
CC gluconate from pectin: step 4/5. {ECO:0000255|HAMAP-Rule:MF_00687}.
CC -!- SIMILARITY: Belongs to the KduI family. {ECO:0000255|HAMAP-
CC Rule:MF_00687}.
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DR EMBL; AE008923; AAM35060.1; -; Genomic_DNA.
DR RefSeq; WP_011050141.1; NC_003919.1.
DR AlphaFoldDB; Q8PR01; -.
DR SMR; Q8PR01; -.
DR STRING; 190486.XAC0168; -.
DR EnsemblBacteria; AAM35060; AAM35060; XAC0168.
DR GeneID; 66909378; -.
DR KEGG; xac:XAC0168; -.
DR eggNOG; COG3717; Bacteria.
DR HOGENOM; CLU_062609_0_0_6; -.
DR OMA; TFIWAMA; -.
DR UniPathway; UPA00545; UER00826.
DR Proteomes; UP000000576; Chromosome.
DR GO; GO:0008697; F:4-deoxy-L-threo-5-hexosulose-uronate ketol-isomerase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0008270; F:zinc ion binding; IEA:UniProtKB-UniRule.
DR GO; GO:0045490; P:pectin catabolic process; IEA:UniProtKB-UniRule.
DR Gene3D; 2.60.120.10; -; 1.
DR Gene3D; 2.60.120.520; -; 1.
DR HAMAP; MF_00687; KduI; 1.
DR InterPro; IPR007045; KduI.
DR InterPro; IPR021120; KduI/IolB_isomerase.
DR InterPro; IPR027449; KduI_N.
DR InterPro; IPR014710; RmlC-like_jellyroll.
DR InterPro; IPR011051; RmlC_Cupin_sf.
DR PANTHER; PTHR38461; PTHR38461; 1.
DR Pfam; PF04962; KduI; 1.
DR PIRSF; PIRSF006625; KduI; 1.
DR SUPFAM; SSF51182; SSF51182; 1.
PE 3: Inferred from homology;
KW Isomerase; Metal-binding; Zinc.
FT CHAIN 1..284
FT /note="4-deoxy-L-threo-5-hexosulose-uronate ketol-
FT isomerase"
FT /id="PRO_0000215498"
FT BINDING 202
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00687"
FT BINDING 204
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00687"
FT BINDING 209
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00687"
FT BINDING 251
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00687"
SQ SEQUENCE 284 AA; 31247 MW; 4F2D250B28B0FFF3 CRC64;
MSLYCKTHYA THPDAIKGAS NDDLRELYLL DGLFVDDAVT LKYTHYERFV LGGAAPLGRT
LELPRQTEPA SAAGHPFLER RELGILNVGA GTGTVIVDGT AYTLGPKDGL YVAMGSTDVS
FASEDAGNPA KFYLASTPAH ARFETKQLSI KDAVALERGA LETSNERTIY QYIVPATCQS
SQLLLGLTVL KPGSVWNTMP PHLHDRRSEV YFYFDLGADD RVYHFMGEPD AQRHIVIQNN
EAVVSPPWSI HMGAGTSNYA FIWAMGGENL DYTDMHVLDI CQLK
