ID M6JQ19_9LEPT Unreviewed; 560 AA.
AC M6JQ19;
DT 29-MAY-2013, integrated into UniProtKB/TrEMBL.
DT 29-MAY-2013, sequence version 1.
DT 24-JAN-2024, entry version 49.
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 ECO:0000313|EMBL:EMN21670.1};
GN ORFNames=LEP1GSC063_3945 {ECO:0000313|EMBL:EMN21670.1};
OS Leptospira santarosai serovar Arenal str. MAVJ 401.
OC Bacteria; Spirochaetota; Spirochaetia; Leptospirales; Leptospiraceae;
OC Leptospira.
OX NCBI_TaxID=1049976 {ECO:0000313|EMBL:EMN21670.1, ECO:0000313|Proteomes:UP000012106};
RN [1] {ECO:0000313|EMBL:EMN21670.1, ECO:0000313|Proteomes:UP000012106}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=MAVJ 401 {ECO:0000313|EMBL:EMN21670.1,
RC ECO:0000313|Proteomes:UP000012106};
RA Harkins D.M., Durkin A.S., Brinkac L.M., Haft D.H., Selengut J.D.,
RA Sanka R., DePew J., Purushe J., Hartskeerl R.A., Ahmed A.,
RA van der Linden H., Goris M.G.A., Vinetz J.M., Sutton G.G., Nierman W.C.,
RA Fouts D.E.;
RL Submitted (JAN-2013) 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}.
CC -!- CAUTION: The sequence shown here is derived from an EMBL/GenBank/DDBJ
CC whole genome shotgun (WGS) entry which is preliminary data.
CC {ECO:0000313|EMBL:EMN21670.1}.
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DR EMBL; AHMU02000050; EMN21670.1; -; Genomic_DNA.
DR RefSeq; WP_004464134.1; NZ_AHMU02000050.1.
DR AlphaFoldDB; M6JQ19; -.
DR UniPathway; UPA00047; UER00057.
DR UniPathway; UPA00049; UER00061.
DR Proteomes; UP000012106; Unassembled WGS sequence.
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}.
FT REGION 1..20
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT ACT_SITE 474
FT /note="Proton acceptor"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00012"
FT BINDING 52
FT /ligand="[2Fe-2S] cluster"
FT /ligand_id="ChEBI:CHEBI:190135"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00012"
FT BINDING 84
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00012"
FT BINDING 126
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00012"
FT BINDING 127
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 448
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00012"
FT MOD_RES 127
FT /note="N6-carboxylysine"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00012"
SQ SEQUENCE 560 AA; 59474 MW; 0FC7797FE5E9FDAA CRC64;
MSDNLKKRSS MTTDGDNRAP NRAMLRAVGF TDEDFHKPMI GIASTWSEVT PCNIHINKLA
EKVKEGVRAA GGVPQIYGTI TVSDGIAMGH EGMHFSLPSR EVIADSIEIV SNAMRHDGVI
AIGGCDKNMP GCLMALCRID APSIFVYGGT ILPGHCDGQD VDIVSIFEAV GKFNAGKISR
EEFIRIEQNA CPGAGSCGGM YTANTMSSAV EALGMSLPGS ASMPAVSSRK SEDCYEAGKA
LIHLIREGIT PKRILTKKAF ENAITVVLVL GGSTNAVLHL IAIAKEIGVE LTLDDFDRIS
KKTPHLADLK PGGKYAMTDL DKVGGVHGVM KYLLKEGMLH GDCLTVTGKT IAENLKDVPD
LVPNQNIVRK RSEALHPSGP LVILKGNLAP EGAVAKISGL KKISITGPAK VFESEDDCFN
AIMTDQIKPG DVIIIRYEGP KGGPGMREML AVTSALVGKG LGEDVGLMTD GRFSGGTHGL
VVGHISPEAF DGGPIAIVQN GDTVTIDSGK NLLQVEISQE EIQRRLKNWK PIEPRYKSGV
LAKYAKLVQS ATNGAITNLL
//
