ID   LEUC_GEOTN              Reviewed;         471 AA.
AC   A4IRH6;
DT   26-FEB-2008, integrated into UniProtKB/Swiss-Prot.
DT   26-FEB-2008, sequence version 2.
DT   03-AUG-2022, entry version 87.
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=GTNG_2585;
OS   Geobacillus thermodenitrificans (strain NG80-2).
OC   Bacteria; Firmicutes; Bacilli; Bacillales; Bacillaceae; Geobacillus.
OX   NCBI_TaxID=420246;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=NG80-2;
RX   PubMed=17372208; DOI=10.1073/pnas.0609650104;
RA   Feng L., Wang W., Cheng J., Ren Y., Zhao G., Gao C., Tang Y., Liu X.,
RA   Han W., Peng X., Liu R., Wang L.;
RT   "Genome and proteome of long-chain alkane degrading Geobacillus
RT   thermodenitrificans NG80-2 isolated from a deep-subsurface oil reservoir.";
RL   Proc. Natl. Acad. Sci. U.S.A. 104:5602-5607(2007).
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}.
CC   -!- SEQUENCE CAUTION:
CC       Sequence=ABO67930.1; Type=Erroneous initiation; Evidence={ECO:0000305};
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DR   EMBL; CP000557; ABO67930.1; ALT_INIT; Genomic_DNA.
DR   RefSeq; WP_008881115.1; NC_009328.1.
DR   AlphaFoldDB; A4IRH6; -.
DR   SMR; A4IRH6; -.
DR   STRING; 420246.GTNG_2585; -.
DR   EnsemblBacteria; ABO67930; ABO67930; GTNG_2585.
DR   KEGG; gtn:GTNG_2585; -.
DR   eggNOG; COG0065; Bacteria.
DR   HOGENOM; CLU_006714_3_4_9; -.
DR   OrthoDB; 749418at2; -.
DR   UniPathway; UPA00048; UER00071.
DR   Proteomes; UP000001578; 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..471
FT                   /note="3-isopropylmalate dehydratase large subunit"
FT                   /id="PRO_0000319814"
FT   BINDING         347
FT                   /ligand="[4Fe-4S] cluster"
FT                   /ligand_id="ChEBI:CHEBI:49883"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01026"
FT   BINDING         407
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"
SQ   SEQUENCE   471 AA;  51630 MW;  B68497D4322BEE91 CRC64;
     MKPKTIIEKI WENHVVYREE GKPDLLYIDL HLVHEVTSPQ AFEGLRQNGR KVRRPDLTFA
     TMDHNVPTVN RFVITDEVAR NQIAALERNC REFGIPLADL HSEEQGIVHV IGPELGLTQP
     GKTIVCGDSH TSTHGAFGAL AFGIGTSEVE HVLATQTLWQ HKPKTLQIRI NGQLGKGVTA
     KDVILAIIGR YGVGVGTGYI IEFTGEAIRR MSMEERMTIC NMSIEAGARA GLISPDETTF
     AYLRGRKYAP KGEEFDQAVE RWRALASDEG AEYDKTIEID ASTIAPMVTW GTNPSMSTSV
     DGTVPDPEQF ESETERNAVR RALEYMGLKP GMSITEIPVQ HVFIGSCTNS RISDLREAAK
     IVKGQKVAPG VRALVVPGSQ QVKKQAEEEG LAQIFLDAGF EWRDAGCSAC LGMNPDIIPE
     GEHCASTSNR NFEGRQGKGA RTHLVSPAMA AAAAIYGRFV DVRQLEAEPV R