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ILVD_XANCP
ID   ILVD_XANCP              Reviewed;         612 AA.
AC   Q8PDJ3;
DT   08-NOV-2002, integrated into UniProtKB/Swiss-Prot.
DT   01-OCT-2002, sequence version 1.
DT   03-AUG-2022, entry version 108.
DE   RecName: Full=Dihydroxy-acid dehydratase {ECO:0000255|HAMAP-Rule:MF_00012};
DE            Short=DAD {ECO:0000255|HAMAP-Rule:MF_00012};
DE            EC=4.2.1.9 {ECO:0000255|HAMAP-Rule:MF_00012};
GN   Name=ilvD {ECO:0000255|HAMAP-Rule:MF_00012}; OrderedLocusNames=XCC0345;
OS   Xanthomonas campestris pv. campestris (strain ATCC 33913 / DSM 3586 / NCPPB
OS   528 / LMG 568 / P 25).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Xanthomonadales;
OC   Xanthomonadaceae; Xanthomonas.
OX   NCBI_TaxID=190485;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 33913 / DSM 3586 / NCPPB 528 / LMG 568 / P 25;
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: Functions in the biosynthesis of branched-chain amino acids.
CC       Catalyzes the dehydration of (2R,3R)-2,3-dihydroxy-3-methylpentanoate
CC       (2,3-dihydroxy-3-methylvalerate) into 2-oxo-3-methylpentanoate (2-oxo-
CC       3-methylvalerate) and of (2R)-2,3-dihydroxy-3-methylbutanoate (2,3-
CC       dihydroxyisovalerate) into 2-oxo-3-methylbutanoate (2-oxoisovalerate),
CC       the penultimate precursor to L-isoleucine and L-valine, respectively.
CC       {ECO:0000255|HAMAP-Rule:MF_00012}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=(2R)-2,3-dihydroxy-3-methylbutanoate = 3-methyl-2-oxobutanoate
CC         + H2O; Xref=Rhea:RHEA:24809, ChEBI:CHEBI:11851, ChEBI:CHEBI:15377,
CC         ChEBI:CHEBI:49072; EC=4.2.1.9; Evidence={ECO:0000255|HAMAP-
CC         Rule:MF_00012};
CC       PhysiologicalDirection=left-to-right; Xref=Rhea:RHEA:24810;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00012};
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=(2R,3R)-2,3-dihydroxy-3-methylpentanoate = (S)-3-methyl-2-
CC         oxopentanoate + H2O; Xref=Rhea:RHEA:27694, ChEBI:CHEBI:15377,
CC         ChEBI:CHEBI:35146, ChEBI:CHEBI:49258; EC=4.2.1.9;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00012};
CC       PhysiologicalDirection=left-to-right; Xref=Rhea:RHEA:27695;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00012};
CC   -!- COFACTOR:
CC       Name=[2Fe-2S] cluster; Xref=ChEBI:CHEBI:190135;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00012};
CC       Note=Binds 1 [2Fe-2S] cluster per subunit. This cluster acts as a Lewis
CC       acid cofactor. {ECO:0000255|HAMAP-Rule:MF_00012};
CC   -!- COFACTOR:
CC       Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00012};
CC   -!- PATHWAY: Amino-acid biosynthesis; L-isoleucine biosynthesis; L-
CC       isoleucine from 2-oxobutanoate: step 3/4. {ECO:0000255|HAMAP-
CC       Rule:MF_00012}.
CC   -!- PATHWAY: Amino-acid biosynthesis; L-valine biosynthesis; L-valine from
CC       pyruvate: step 3/4. {ECO:0000255|HAMAP-Rule:MF_00012}.
CC   -!- SUBUNIT: Homodimer. {ECO:0000255|HAMAP-Rule:MF_00012}.
CC   -!- SIMILARITY: Belongs to the IlvD/Edd family. {ECO:0000255|HAMAP-
CC       Rule:MF_00012}.
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DR   EMBL; AE008922; AAM39664.1; -; Genomic_DNA.
DR   RefSeq; NP_635740.1; NC_003902.1.
DR   RefSeq; WP_011035599.1; NC_003902.1.
DR   AlphaFoldDB; Q8PDJ3; -.
DR   SMR; Q8PDJ3; -.
DR   STRING; 340.xcc-b100_0370; -.
DR   EnsemblBacteria; AAM39664; AAM39664; XCC0345.
DR   KEGG; xcc:XCC0345; -.
DR   PATRIC; fig|190485.4.peg.376; -.
DR   eggNOG; COG0129; Bacteria.
DR   HOGENOM; CLU_014271_4_2_6; -.
DR   OMA; TQGRNMA; -.
DR   UniPathway; UPA00047; UER00057.
DR   UniPathway; UPA00049; UER00061.
DR   Proteomes; UP000001010; Chromosome.
DR   GO; GO:0005829; C:cytosol; IBA:GO_Central.
DR   GO; GO:0051537; F:2 iron, 2 sulfur cluster binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0004160; F:dihydroxy-acid dehydratase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0016836; F:hydro-lyase activity; IBA:GO_Central.
DR   GO; GO:0000287; F:magnesium ion binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0009097; P:isoleucine biosynthetic process; IEA:UniProtKB-UniRule.
DR   GO; GO:0009099; P:valine biosynthetic process; IEA:UniProtKB-UniRule.
DR   Gene3D; 3.50.30.80; -; 1.
DR   HAMAP; MF_00012; IlvD; 1.
DR   InterPro; IPR042096; Dihydro-acid_dehy_C.
DR   InterPro; IPR004404; DihydroxyA_deHydtase.
DR   InterPro; IPR000581; DiOHA_6PGluconate_deHydtase.
DR   InterPro; IPR020558; DiOHA_6PGluconate_deHydtase_CS.
DR   InterPro; IPR037237; IlvD/EDD_N.
DR   Pfam; PF00920; ILVD_EDD; 1.
DR   SUPFAM; SSF143975; SSF143975; 1.
DR   TIGRFAMs; TIGR00110; ilvD; 1.
DR   PROSITE; PS00886; ILVD_EDD_1; 1.
DR   PROSITE; PS00887; ILVD_EDD_2; 1.
PE   3: Inferred from homology;
KW   2Fe-2S; Amino-acid biosynthesis; Branched-chain amino acid biosynthesis;
KW   Iron; Iron-sulfur; Lyase; Magnesium; Metal-binding; Reference proteome.
FT   CHAIN           1..612
FT                   /note="Dihydroxy-acid dehydratase"
FT                   /id="PRO_0000103532"
FT   ACT_SITE        515
FT                   /note="Proton acceptor"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00012"
FT   BINDING         81
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00012"
FT   BINDING         122
FT                   /ligand="[2Fe-2S] cluster"
FT                   /ligand_id="ChEBI:CHEBI:190135"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00012"
FT   BINDING         123
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00012"
FT   BINDING         124
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /note="via carbamate group"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00012"
FT   BINDING         193
FT                   /ligand="[2Fe-2S] cluster"
FT                   /ligand_id="ChEBI:CHEBI:190135"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00012"
FT   BINDING         489
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00012"
FT   MOD_RES         124
FT                   /note="N6-carboxylysine"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00012"
SQ   SEQUENCE   612 AA;  65281 MW;  ABC93D2A87201BF1 CRC64;
     MPEYRSKTST HGRNMAGARA LWRATGMKDG DFHKPIIAIA NSFTQFVPGH VHLKDLGQLV
     AREIERVGGV AKEFDTIAVD DGIAMGHDGM LYSLPSREII ADSVEYMVNA HCADALVCIS
     NCDKITPGML MAALRLNIPT VFVSGGPMEA GKTKLADHNL DLIDAMVIAA DDSASDEKVA
     EFERSACPTC GSCSGMFTAN SMNCLTEALG LSLPGNGTVV ATHADREQLF LRAGRVAVEL
     CHRWYGGEDP TALPRGIATF EAFENAMTLD IAMGGSTNTI LHLLAAAQEG EVPFGMRDID
     RLSKRVPQLC KVAPNTPKYH IEDVHRAGGI MSILGELARG GLLHTNAATV HTRTLADAIA
     QWDVTQVDDD KVHTFYKAGP AGIPTQIAFS QATRWDTLDT DRSEGCIRDV AHAFSQEGGL
     AVLYGNIARD GCVVKTAGVD ESIHVFEGNT RVYESQDSAV KGILADEVKA GDVVVIRYEG
     PKGGPGMQEM LYPTSYLKSK GLGKHCALLT DGRFSGGTSG LSIGHASPEA AAGGAIGLVR
     NGDKILIDIP KRSIDLLVSD EELAARRTEQ DAKGWKPVEV RPRKVTTALK AYALLATSAD
     KGAVRDKAML DG
 
 
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