LEUC_POLAQ
ID LEUC_POLAQ Reviewed; 469 AA.
AC A4SWW8;
DT 20-MAY-2008, integrated into UniProtKB/Swiss-Prot.
DT 15-MAY-2007, sequence version 1.
DT 03-AUG-2022, entry version 94.
DE RecName: Full=3-isopropylmalate dehydratase large subunit {ECO:0000255|HAMAP-Rule:MF_01026};
DE EC=4.2.1.33 {ECO:0000255|HAMAP-Rule:MF_01026};
DE AltName: Full=Alpha-IPM isomerase {ECO:0000255|HAMAP-Rule:MF_01026};
DE Short=IPMI {ECO:0000255|HAMAP-Rule:MF_01026};
DE AltName: Full=Isopropylmalate isomerase {ECO:0000255|HAMAP-Rule:MF_01026};
GN Name=leuC {ECO:0000255|HAMAP-Rule:MF_01026}; OrderedLocusNames=Pnuc_0764;
OS Polynucleobacter asymbioticus (strain DSM 18221 / CIP 109841 /
OS QLW-P1DMWA-1) (Polynucleobacter necessarius subsp. asymbioticus).
OC Bacteria; Proteobacteria; Betaproteobacteria; Burkholderiales;
OC Burkholderiaceae; Polynucleobacter.
OX NCBI_TaxID=312153;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=DSM 18221 / CIP 109841 / QLW-P1DMWA-1;
RX PubMed=22675600; DOI=10.4056/sigs.2395367;
RA Meincke L., Copeland A., Lapidus A., Lucas S., Berry K.W., Del Rio T.G.,
RA Hammon N., Dalin E., Tice H., Pitluck S., Richardson P., Bruce D.,
RA Goodwin L., Han C., Tapia R., Detter J.C., Schmutz J., Brettin T.,
RA Larimer F., Land M., Hauser L., Kyrpides N.C., Ivanova N., Goker M.,
RA Woyke T., Wu Q.L., Pockl M., Hahn M.W., Klenk H.P.;
RT "Complete genome sequence of Polynucleobacter necessarius subsp.
RT asymbioticus type strain (QLW-P1DMWA-1(T)).";
RL Stand. Genomic Sci. 6:74-83(2012).
CC -!- FUNCTION: Catalyzes the isomerization between 2-isopropylmalate and 3-
CC isopropylmalate, via the formation of 2-isopropylmaleate.
CC {ECO:0000255|HAMAP-Rule:MF_01026}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=(2R,3S)-3-isopropylmalate = (2S)-2-isopropylmalate;
CC Xref=Rhea:RHEA:32287, ChEBI:CHEBI:1178, ChEBI:CHEBI:35121;
CC EC=4.2.1.33; Evidence={ECO:0000255|HAMAP-Rule:MF_01026};
CC -!- COFACTOR:
CC Name=[4Fe-4S] cluster; Xref=ChEBI:CHEBI:49883;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_01026};
CC Note=Binds 1 [4Fe-4S] cluster per subunit. {ECO:0000255|HAMAP-
CC Rule:MF_01026};
CC -!- PATHWAY: Amino-acid biosynthesis; L-leucine biosynthesis; L-leucine
CC from 3-methyl-2-oxobutanoate: step 2/4. {ECO:0000255|HAMAP-
CC Rule:MF_01026}.
CC -!- SUBUNIT: Heterodimer of LeuC and LeuD. {ECO:0000255|HAMAP-
CC Rule:MF_01026}.
CC -!- SIMILARITY: Belongs to the aconitase/IPM isomerase family. LeuC type 1
CC subfamily. {ECO:0000255|HAMAP-Rule:MF_01026}.
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DR EMBL; CP000655; ABP33982.1; -; Genomic_DNA.
DR RefSeq; WP_011902607.1; NC_009379.1.
DR AlphaFoldDB; A4SWW8; -.
DR SMR; A4SWW8; -.
DR STRING; 312153.Pnuc_0764; -.
DR EnsemblBacteria; ABP33982; ABP33982; Pnuc_0764.
DR GeneID; 31481125; -.
DR KEGG; pnu:Pnuc_0764; -.
DR eggNOG; COG0065; Bacteria.
DR HOGENOM; CLU_006714_3_4_4; -.
DR OMA; CNMSIEM; -.
DR UniPathway; UPA00048; UER00071.
DR Proteomes; UP000000231; Chromosome.
DR GO; GO:0003861; F:3-isopropylmalate dehydratase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0051539; F:4 iron, 4 sulfur cluster binding; IEA:UniProtKB-KW.
DR GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW.
DR GO; GO:0009098; P:leucine biosynthetic process; IEA:UniProtKB-UniRule.
DR CDD; cd01583; IPMI; 1.
DR Gene3D; 3.30.499.10; -; 2.
DR HAMAP; MF_01026; LeuC_type1; 1.
DR InterPro; IPR004430; 3-IsopropMal_deHydase_lsu.
DR InterPro; IPR015931; Acnase/IPM_dHydase_lsu_aba_1/3.
DR InterPro; IPR001030; Acoase/IPM_deHydtase_lsu_aba.
DR InterPro; IPR018136; Aconitase_4Fe-4S_BS.
DR InterPro; IPR036008; Aconitase_4Fe-4S_dom.
DR InterPro; IPR033941; IPMI_cat.
DR Pfam; PF00330; Aconitase; 1.
DR PRINTS; PR00415; ACONITASE.
DR SUPFAM; SSF53732; SSF53732; 1.
DR TIGRFAMs; TIGR00170; leuC; 1.
DR PROSITE; PS00450; ACONITASE_1; 1.
DR PROSITE; PS01244; ACONITASE_2; 1.
PE 3: Inferred from homology;
KW 4Fe-4S; Amino-acid biosynthesis; Branched-chain amino acid biosynthesis;
KW Iron; Iron-sulfur; Leucine biosynthesis; Lyase; Metal-binding.
FT CHAIN 1..469
FT /note="3-isopropylmalate dehydratase large subunit"
FT /id="PRO_1000084219"
FT BINDING 347
FT /ligand="[4Fe-4S] cluster"
FT /ligand_id="ChEBI:CHEBI:49883"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01026"
FT BINDING 410
FT /ligand="[4Fe-4S] cluster"
FT /ligand_id="ChEBI:CHEBI:49883"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01026"
FT BINDING 413
FT /ligand="[4Fe-4S] cluster"
FT /ligand_id="ChEBI:CHEBI:49883"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01026"
SQ SEQUENCE 469 AA; 50778 MW; 32DD1355B39978F1 CRC64;
MSRTLYDKLW DDHVVYSEED GTATIYIDRQ LLHEVTSPQA FEGLNLAGRP VWRISANLAV
SDHNVPTTDR SEGIADPISK LQVDTLDQNC DAFGITQYKM NDTRQGIVHV IGPEQGATLP
GMTVVCGDSH TSTHGAFGAL AFGIGTSEVE HVLATQTLLM KKSKNMLVRV DGRLQPGSTA
KDIVLAVIGK IGTAGGTGYT IEFAGEAIRN LSMEGRMTLC NMAIEAGARA GLVAVDETTI
EYIQGRPYSP KGPAMLQALQ YWRTLHTDAD AKFDAVVELR AEEIAPQVTW GTSPEMVLAI
SERIPDPEKE RDPNKRSAME RALEYMNLTP NTPLSSITID KVFIGSCTNS RIEDIRAAAK
VVDRLGKKVA PNVKLALVVP GSGLVKAQAE REGLDRIFKA AGFEWREPGC SMCLAMNADR
LEPGERCAST SNRNFEGRQG NGGRTHLVSP AMAAAAAIEG HFVDVRKIS
