ID   LEUC_PSEU2              Reviewed;         474 AA.
AC   Q4ZUZ6;
DT   10-JAN-2006, integrated into UniProtKB/Swiss-Prot.
DT   07-JUN-2005, sequence version 1.
DT   27-MAR-2024, entry version 99.
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};
GN   OrderedLocusNames=Psyr_1983;
OS   Pseudomonas syringae pv. syringae (strain B728a).
OC   Bacteria; Pseudomonadota; Gammaproteobacteria; Pseudomonadales;
OC   Pseudomonadaceae; Pseudomonas; Pseudomonas syringae.
OX   NCBI_TaxID=205918;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=B728a;
RX   PubMed=16043691; DOI=10.1073/pnas.0504930102;
RA   Feil H., Feil W.S., Chain P., Larimer F., Dibartolo G., Copeland A.,
RA   Lykidis A., Trong S., Nolan M., Goltsman E., Thiel J., Malfatti S.,
RA   Loper J.E., Lapidus A., Detter J.C., Land M., Richardson P.M.,
RA   Kyrpides N.C., Ivanova N., Lindow S.E.;
RT   "Comparison of the complete genome sequences of Pseudomonas syringae pv.
RT   syringae B728a and pv. tomato DC3000.";
RL   Proc. Natl. Acad. Sci. U.S.A. 102:11064-11069(2005).
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; CP000075; AAY37026.1; -; Genomic_DNA.
DR   RefSeq; WP_003406190.1; NC_007005.1.
DR   RefSeq; YP_235064.1; NC_007005.1.
DR   AlphaFoldDB; Q4ZUZ6; -.
DR   SMR; Q4ZUZ6; -.
DR   STRING; 205918.Psyr_1983; -.
DR   KEGG; psb:Psyr_1983; -.
DR   PATRIC; fig|205918.7.peg.2026; -.
DR   eggNOG; COG0065; Bacteria.
DR   HOGENOM; CLU_006714_3_4_6; -.
DR   OrthoDB; 9802769at2; -.
DR   UniPathway; UPA00048; UER00071.
DR   Proteomes; UP000000426; 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; Aconitase, domain 3; 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   NCBIfam; TIGR00170; leuC; 1.
DR   PANTHER; PTHR43822:SF9; 3-ISOPROPYLMALATE DEHYDRATASE; 1.
DR   PANTHER; PTHR43822; HOMOACONITASE, MITOCHONDRIAL-RELATED; 1.
DR   Pfam; PF00330; Aconitase; 1.
DR   PRINTS; PR00415; ACONITASE.
DR   SUPFAM; SSF53732; Aconitase iron-sulfur domain; 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..474
FT                   /note="3-isopropylmalate dehydratase large subunit"
FT                   /id="PRO_0000076788"
FT   BINDING         352
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"
FT   BINDING         416
FT                   /ligand="[4Fe-4S] cluster"
FT                   /ligand_id="ChEBI:CHEBI:49883"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01026"
SQ   SEQUENCE   474 AA;  50968 MW;  FFC844498821359A CRC64;
     MAGKTLYDKL WDSHLVKQRD DGSALIYIDR HIIHEVTSPQ AFEGLRLAKR KPWRIDSIIA
     TPDHNVPTTA ERKGGIGAIE DQVSRLQVQT LDDNCDEYGI TEFKMNDPRQ GIVHVIGPEQ
     GATLPGMSVV CGDSHTSTHG AFGALAHGIG TSEVEHVLAT QCLVAKKMKN MLVSVEGQLP
     FGVTAKDIVL AVIGKIGTAG GNGYAIEFAG SAIRDLSIEG RMTICNMSIE AGARVGMVAT
     DEKTVEYVKG RPFAPKGAEW DLAVEAWKDL VSDPDAVFDT VVRLDAAQIK PQVSWGTSPE
     MVLAVDQNVP DPAQEPDLVK RGSIERALKY MGLKANQPIT DIQLDRVFIG SCTNSRIEDL
     RAAADVAKGR KVASTIKQAI VVPGSGLIKA QAEKEGLDKV FIEAGFEWRE PGCSMCLAMN
     PDRLGSGEHC ASTSNRNFEG RQGAGGRTHL VSPAMAAAAA VNGRFIDVRD LIQH
//