KDUI_BACSU
ID KDUI_BACSU Reviewed; 275 AA.
AC P50843;
DT 01-OCT-1996, integrated into UniProtKB/Swiss-Prot.
DT 01-OCT-1996, sequence version 1.
DT 03-AUG-2022, entry version 125.
DE RecName: Full=4-deoxy-L-threo-5-hexosulose-uronate ketol-isomerase;
DE EC=5.3.1.17;
DE AltName: Full=5-keto-4-deoxyuronate isomerase;
DE AltName: Full=DKI isomerase;
GN Name=kduI; OrderedLocusNames=BSU22130;
OS Bacillus subtilis (strain 168).
OC Bacteria; Firmicutes; Bacilli; Bacillales; Bacillaceae; Bacillus.
OX NCBI_TaxID=224308;
RN [1]
RP NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RC STRAIN=168 / Marburg / ATCC 6051 / DSM 10 / JCM 1465 / NBRC 13719 / NCIMB
RC 3610 / NRRL NRS-744 / VKM B-501;
RX PubMed=8760912; DOI=10.1099/13500872-142-8-2005;
RA Sorokin A.V., Azevedo V., Zumstein E., Galleron N., Ehrlich S.D.,
RA Serror P.;
RT "Sequence analysis of the Bacillus subtilis chromosome region between the
RT serA and kdg loci cloned in a yeast artificial chromosome.";
RL Microbiology 142:2005-2016(1996).
RN [2]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=168;
RX PubMed=9384377; DOI=10.1038/36786;
RA Kunst F., Ogasawara N., Moszer I., Albertini A.M., Alloni G., Azevedo V.,
RA Bertero M.G., Bessieres P., Bolotin A., Borchert S., Borriss R.,
RA Boursier L., Brans A., Braun M., Brignell S.C., Bron S., Brouillet S.,
RA Bruschi C.V., Caldwell B., Capuano V., Carter N.M., Choi S.-K.,
RA Codani J.-J., Connerton I.F., Cummings N.J., Daniel R.A., Denizot F.,
RA Devine K.M., Duesterhoeft A., Ehrlich S.D., Emmerson P.T., Entian K.-D.,
RA Errington J., Fabret C., Ferrari E., Foulger D., Fritz C., Fujita M.,
RA Fujita Y., Fuma S., Galizzi A., Galleron N., Ghim S.-Y., Glaser P.,
RA Goffeau A., Golightly E.J., Grandi G., Guiseppi G., Guy B.J., Haga K.,
RA Haiech J., Harwood C.R., Henaut A., Hilbert H., Holsappel S., Hosono S.,
RA Hullo M.-F., Itaya M., Jones L.-M., Joris B., Karamata D., Kasahara Y.,
RA Klaerr-Blanchard M., Klein C., Kobayashi Y., Koetter P., Koningstein G.,
RA Krogh S., Kumano M., Kurita K., Lapidus A., Lardinois S., Lauber J.,
RA Lazarevic V., Lee S.-M., Levine A., Liu H., Masuda S., Mauel C.,
RA Medigue C., Medina N., Mellado R.P., Mizuno M., Moestl D., Nakai S.,
RA Noback M., Noone D., O'Reilly M., Ogawa K., Ogiwara A., Oudega B.,
RA Park S.-H., Parro V., Pohl T.M., Portetelle D., Porwollik S.,
RA Prescott A.M., Presecan E., Pujic P., Purnelle B., Rapoport G., Rey M.,
RA Reynolds S., Rieger M., Rivolta C., Rocha E., Roche B., Rose M., Sadaie Y.,
RA Sato T., Scanlan E., Schleich S., Schroeter R., Scoffone F., Sekiguchi J.,
RA Sekowska A., Seror S.J., Serror P., Shin B.-S., Soldo B., Sorokin A.,
RA Tacconi E., Takagi T., Takahashi H., Takemaru K., Takeuchi M.,
RA Tamakoshi A., Tanaka T., Terpstra P., Tognoni A., Tosato V., Uchiyama S.,
RA Vandenbol M., Vannier F., Vassarotti A., Viari A., Wambutt R., Wedler E.,
RA Wedler H., Weitzenegger T., Winters P., Wipat A., Yamamoto H., Yamane K.,
RA Yasumoto K., Yata K., Yoshida K., Yoshikawa H.-F., Zumstein E.,
RA Yoshikawa H., Danchin A.;
RT "The complete genome sequence of the Gram-positive bacterium Bacillus
RT subtilis.";
RL Nature 390:249-256(1997).
RN [3]
RP INDUCTION.
RC STRAIN=168;
RX PubMed=17322190; DOI=10.1099/mic.0.2006/002253-0;
RA Lin J.S., Shaw G.C.;
RT "Regulation of the kduID operon of Bacillus subtilis by the KdgR repressor
RT and the ccpA gene: identification of two KdgR-binding sites within the
RT kdgR-kduI intergenic region.";
RL Microbiology 153:701-710(2007).
CC -!- FUNCTION: Catalyzes the isomerization of 5-dehydro-4-deoxy-D-
CC glucuronate to 3-deoxy-D-glycero-2,5-hexodiulosonate. {ECO:0000250}.
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;
CC -!- COFACTOR:
CC Name=Zn(2+); Xref=ChEBI:CHEBI:29105; Evidence={ECO:0000250};
CC Note=Binds 1 zinc ion per subunit. {ECO:0000250};
CC -!- PATHWAY: Glycan metabolism; pectin degradation; 2-dehydro-3-deoxy-D-
CC gluconate from pectin: step 4/5.
CC -!- INDUCTION: Induced by galacturonate and negatively regulated by the
CC KdgR repressor. Is subject to catabolite repression by glucose
CC involving the ccpA gene. {ECO:0000269|PubMed:17322190}.
CC -!- SIMILARITY: Belongs to the KduI family. {ECO:0000305}.
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DR EMBL; L47838; AAB38477.1; -; Genomic_DNA.
DR EMBL; AL009126; CAB14130.1; -; Genomic_DNA.
DR PIR; E69648; E69648.
DR RefSeq; NP_390095.1; NC_000964.3.
DR RefSeq; WP_003230722.1; NZ_JNCM01000036.1.
DR AlphaFoldDB; P50843; -.
DR SMR; P50843; -.
DR STRING; 224308.BSU22130; -.
DR PaxDb; P50843; -.
DR PRIDE; P50843; -.
DR EnsemblBacteria; CAB14130; CAB14130; BSU_22130.
DR GeneID; 939062; -.
DR KEGG; bsu:BSU22130; -.
DR PATRIC; fig|224308.179.peg.2417; -.
DR eggNOG; COG3717; Bacteria.
DR InParanoid; P50843; -.
DR OMA; TFIWAMA; -.
DR PhylomeDB; P50843; -.
DR BioCyc; BSUB:BSU22130-MON; -.
DR UniPathway; UPA00545; UER00826.
DR Proteomes; UP000001570; Chromosome.
DR GO; GO:0008697; F:4-deoxy-L-threo-5-hexosulose-uronate ketol-isomerase activity; IBA:GO_Central.
DR GO; GO:0046872; F:metal ion binding; IBA:GO_Central.
DR GO; GO:0008270; F:zinc ion binding; IEA:UniProtKB-UniRule.
DR GO; GO:0019698; P:D-galacturonate catabolic process; IBA:GO_Central.
DR GO; GO:0042840; P:D-glucuronate catabolic process; IBA:GO_Central.
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 2: Evidence at transcript level;
KW Isomerase; Metal-binding; Reference proteome; Zinc.
FT CHAIN 1..275
FT /note="4-deoxy-L-threo-5-hexosulose-uronate ketol-
FT isomerase"
FT /id="PRO_0000215481"
FT BINDING 193
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000250"
FT BINDING 195
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000250"
FT BINDING 200
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000250"
FT BINDING 242
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000250"
SQ SEQUENCE 275 AA; 31135 MW; 31B2CE2CE7C54760 CRC64;
MENRYSVHPE QVKRFTTEEL RSHFLMDSLF TENKLTMYYS HEDRVVIGGA APGQSELKLD
AGDFLKTDFF LERREIGIIN VGQPGAVRVG DDEYVLQTKD FLYIGMGNQD VSFSSLNGEK
AKFYFVSACA HKSYPTQKAA LSELTPDRLG DDAASNVRSL YKVIHQDGIK SCQLMMGITM
LDQNNNWNTM PAHVHDRRME AYLYLDLEKD SKVFHFMGQP DETRHLVVGN EQAVLSPAWS
IHSGAGTSNY SFVWAMAGEN YTFTDMDLIP MDGLK
