ID   LEUC_RUTMC              Reviewed;         466 AA.
AC   A1AW36;
DT   26-FEB-2008, integrated into UniProtKB/Swiss-Prot.
DT   26-FEB-2008, sequence version 2.
DT   03-AUG-2022, entry version 89.
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=Rmag_0372;
OS   Ruthia magnifica subsp. Calyptogena magnifica.
OC   Bacteria; Proteobacteria; Gammaproteobacteria; sulfur-oxidizing symbionts;
OC   Candidatus Ruthia.
OX   NCBI_TaxID=413404;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RX   PubMed=17303757; DOI=10.1126/science.1138438;
RA   Newton I.L.G., Woyke T., Auchtung T.A., Dilly G.F., Dutton R.J.,
RA   Fisher M.C., Fontanez K.M., Lau E., Stewart F.J., Richardson P.M.,
RA   Barry K.W., Saunders E., Detter J.C., Wu D., Eisen J.A., Cavanaugh C.M.;
RT   "The Calyptogena magnifica chemoautotrophic symbiont genome.";
RL   Science 315:998-1000(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=ABL02143.1; Type=Erroneous initiation; Evidence={ECO:0000305};
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DR   EMBL; CP000488; ABL02143.1; ALT_INIT; Genomic_DNA.
DR   RefSeq; WP_024792211.1; NC_008610.1.
DR   AlphaFoldDB; A1AW36; -.
DR   SMR; A1AW36; -.
DR   STRING; 413404.Rmag_0372; -.
DR   EnsemblBacteria; ABL02143; ABL02143; Rmag_0372.
DR   KEGG; rma:Rmag_0372; -.
DR   eggNOG; COG0065; Bacteria.
DR   HOGENOM; CLU_006714_3_4_6; -.
DR   OrthoDB; 749418at2; -.
DR   UniPathway; UPA00048; UER00071.
DR   Proteomes; UP000002587; 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;
KW   Reference proteome.
FT   CHAIN           1..466
FT                   /note="3-isopropylmalate dehydratase large subunit"
FT                   /id="PRO_0000319837"
FT   BINDING         349
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   466 AA;  50549 MW;  22D37E7147532220 CRC64;
     MTQTLYDKLM NAHVIRRDNS TELIYIDRQL IHEVTSPQAF EGLAIAGRKP WSTSANLAVP
     DHNVPTTNRS SGINGISDPI SKLQIETLDK NCKTFGINEI PMNDIRQGIV HVVGPEQGFT
     LPGMSIVCGD SHTSTHGALG ALAFGIGTSE VEHVLATGCL WQSKSKNFNI EVSGKLNKHV
     SAKDIALYII GKIGTAGGTG HAIEFSGDTI QSLSIEGRMT LCNMAIEAGA RVGMVAVDDK
     TIDYVKGRIL APSGAKWSKA VEYWHTLHSD KNAHFEKIAH FNAKDIKPQV TWGTSPEMVI
     TIDGYIPNPA NAKNHTEKVS WENALNYMQL TADIKISDIK IDKVFIGSCT NSRIEDLRIV
     ASVLKDKKIA NNIKLALVVP GSGLIKKQAE KEGLDKIFIN SGFEWREAGC SMCLAMNADK
     LKVGERCIST SNRNFEGRQG QGSFTHLVSP AIAAASAITG HFSEVK