ID A0A167I0Z8_9BURK Unreviewed; 568 AA.
AC A0A167I0Z8;
DT 06-JUL-2016, integrated into UniProtKB/TrEMBL.
DT 06-JUL-2016, sequence version 1.
DT 27-MAR-2024, entry version 36.
DE RecName: Full=Dihydroxy-acid dehydratase {ECO:0000256|ARBA:ARBA00029490, ECO:0000256|HAMAP-Rule:MF_00012};
DE Short=DAD {ECO:0000256|HAMAP-Rule:MF_00012};
DE EC=4.2.1.9 {ECO:0000256|ARBA:ARBA00029490, ECO:0000256|HAMAP-Rule:MF_00012};
GN Name=ilvD {ECO:0000256|HAMAP-Rule:MF_00012};
GN ORFNames=LPB072_13375 {ECO:0000313|EMBL:AOW13689.1}, LPB72_11995
GN {ECO:0000313|EMBL:OAD41985.1};
OS Hydrogenophaga crassostreae.
OC Bacteria; Pseudomonadota; Betaproteobacteria; Burkholderiales;
OC Comamonadaceae; Hydrogenophaga.
OX NCBI_TaxID=1763535 {ECO:0000313|EMBL:AOW13689.1, ECO:0000313|Proteomes:UP000185680};
RN [1] {ECO:0000313|EMBL:OAD41985.1, ECO:0000313|Proteomes:UP000185657}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=LPB0072 {ECO:0000313|EMBL:OAD41985.1,
RC ECO:0000313|Proteomes:UP000185657};
RA Shin S.-K., Yi H.;
RT "Draft genome sequence of Hydrogenophaga sp. LPB0072.";
RL Submitted (FEB-2016) to the EMBL/GenBank/DDBJ databases.
RN [2] {ECO:0000313|EMBL:AOW13689.1, ECO:0000313|Proteomes:UP000185680}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=LPB0072 {ECO:0000313|EMBL:AOW13689.1,
RC ECO:0000313|Proteomes:UP000185680};
RA Kim E., Yi H.;
RT "Hydorgenophaga sp. LPB0072 isolated from gastropod.";
RL Submitted (OCT-2016) to the EMBL/GenBank/DDBJ databases.
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:0000256|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;
CC Evidence={ECO:0000256|ARBA:ARBA00029304};
CC PhysiologicalDirection=left-to-right; Xref=Rhea:RHEA:24810;
CC Evidence={ECO:0000256|ARBA:ARBA00029304};
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:0000256|HAMAP-Rule:MF_00012};
CC -!- COFACTOR:
CC Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC Evidence={ECO:0000256|ARBA:ARBA00001946,
CC ECO:0000256|HAMAP-Rule:MF_00012};
CC -!- COFACTOR:
CC Name=[2Fe-2S] cluster; Xref=ChEBI:CHEBI:190135;
CC Evidence={ECO:0000256|HAMAP-Rule:MF_00012};
CC Note=Binds 1 [2Fe-2S] cluster per subunit. This cluster acts as a Lewis
CC acid cofactor. {ECO:0000256|HAMAP-Rule:MF_00012};
CC -!- PATHWAY: Amino-acid biosynthesis; L-isoleucine biosynthesis; L-
CC isoleucine from 2-oxobutanoate: step 3/4.
CC {ECO:0000256|ARBA:ARBA00029437, ECO:0000256|HAMAP-Rule:MF_00012}.
CC -!- PATHWAY: Amino-acid biosynthesis; L-valine biosynthesis; L-valine from
CC pyruvate: step 3/4. {ECO:0000256|ARBA:ARBA00029436, ECO:0000256|HAMAP-
CC Rule:MF_00012}.
CC -!- SUBUNIT: Homodimer. {ECO:0000256|HAMAP-Rule:MF_00012}.
CC -!- SIMILARITY: Belongs to the IlvD/Edd family.
CC {ECO:0000256|ARBA:ARBA00006486, ECO:0000256|HAMAP-Rule:MF_00012}.
CC -!- CAUTION: Lacks conserved residue(s) required for the propagation of
CC feature annotation. {ECO:0000256|HAMAP-Rule:MF_00012}.
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DR EMBL; CP017476; AOW13689.1; -; Genomic_DNA.
DR EMBL; LVWD01000013; OAD41985.1; -; Genomic_DNA.
DR RefSeq; WP_066090643.1; NZ_LVWD01000013.1.
DR AlphaFoldDB; A0A167I0Z8; -.
DR STRING; 1763535.LPB072_13375; -.
DR KEGG; hyl:LPB072_13375; -.
DR OrthoDB; 9807077at2; -.
DR UniPathway; UPA00047; UER00057.
DR UniPathway; UPA00049; UER00061.
DR Proteomes; UP000185657; Unassembled WGS sequence.
DR Proteomes; UP000185680; Chromosome.
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: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; IlvD/EDD C-terminal domain-like; 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 NCBIfam; TIGR00110; ilvD; 1.
DR PANTHER; PTHR21000; DIHYDROXY-ACID DEHYDRATASE DAD; 1.
DR PANTHER; PTHR21000:SF5; DIHYDROXY-ACID DEHYDRATASE, MITOCHONDRIAL; 1.
DR Pfam; PF00920; ILVD_EDD; 1.
DR SUPFAM; SSF143975; IlvD/EDD N-terminal domain-like; 1.
DR SUPFAM; SSF52016; LeuD/IlvD-like; 1.
DR PROSITE; PS00886; ILVD_EDD_1; 1.
DR PROSITE; PS00887; ILVD_EDD_2; 1.
PE 3: Inferred from homology;
KW 2Fe-2S {ECO:0000256|ARBA:ARBA00022714, ECO:0000256|HAMAP-Rule:MF_00012};
KW Amino-acid biosynthesis {ECO:0000256|ARBA:ARBA00022605, ECO:0000256|HAMAP-
KW Rule:MF_00012};
KW Branched-chain amino acid biosynthesis {ECO:0000256|ARBA:ARBA00023304,
KW ECO:0000256|HAMAP-Rule:MF_00012};
KW Iron {ECO:0000256|ARBA:ARBA00023004, ECO:0000256|HAMAP-Rule:MF_00012};
KW Iron-sulfur {ECO:0000256|ARBA:ARBA00023014, ECO:0000256|HAMAP-
KW Rule:MF_00012};
KW Lyase {ECO:0000256|ARBA:ARBA00023239, ECO:0000256|HAMAP-Rule:MF_00012};
KW Magnesium {ECO:0000256|ARBA:ARBA00022842, ECO:0000256|HAMAP-Rule:MF_00012};
KW Metal-binding {ECO:0000256|ARBA:ARBA00022723, ECO:0000256|HAMAP-
KW Rule:MF_00012}; Reference proteome {ECO:0000313|Proteomes:UP000185680}.
FT REGION 1..23
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT COMPBIAS 9..23
FT /note="Polar residues"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT ACT_SITE 482
FT /note="Proton acceptor"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00012"
FT BINDING 59
FT /ligand="[2Fe-2S] cluster"
FT /ligand_id="ChEBI:CHEBI:190135"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00012"
FT BINDING 91
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00012"
FT BINDING 117
FT /ligand="[2Fe-2S] cluster"
FT /ligand_id="ChEBI:CHEBI:190135"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00012"
FT BINDING 133
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00012"
FT BINDING 134
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /note="via carbamate group"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00012"
FT BINDING 456
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00012"
FT MOD_RES 134
FT /note="N6-carboxylysine"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00012"
SQ SEQUENCE 568 AA; 59698 MW; 614112FF2DDA3CC1 CRC64;
MADNKIIPIT PMNQRSKNIT EGKSRAPNRS MYYAMGYEAG DFVKPMVGVA NGHSTITPCN
SGLQKLADAA IAAIEEAGGN AQVFGTPTIS DGMAMGTEGM KYSLVSREVI SDCVETCVQG
QWMDGVVVIG GCDKNMPGGL MGMLRANVPA IYVYGGTILP GRYKGQDLNI VSVFEAVGQN
AAGNLSDEDL LEIEKRAIPG TGSCGGMYTA NTMSSAFEAL GISLPYSSTM ANPHDEKLNS
AKESAKVLIE AIRKDIKPRD IVTRKSIENA VAVIMATGGS TNAVLHFLAI AHAAGVEWTI
DDFERVRVKT PVLCDLKPSG KYLAVDLHKA GGIPQVMKVL LNAGLLHGDC LTITGQTMAE
VLKNVPDVPA ADQDVIRSID KPMYAQGHLA ILKGNLSPEG CVAKITGLKN PVITGPARVF
DDEQSALKAI LDGKIVAGDV MVLRYLGPKG GPGMPEMLAP TGALIGAGLG ESVGLITDGR
FSGGTWGMVV GHVAPEAAAG GTIAFVHEGD TITIDARQLK LELLVSEEEI AQRRAAWIAP
QPRYTRGVQA KFAFNASSAS KGAVLDNY
//