LEUC_CALS4
ID LEUC_CALS4 Reviewed; 418 AA.
AC Q8RDK2;
DT 26-JUL-2002, integrated into UniProtKB/Swiss-Prot.
DT 01-JUN-2002, sequence version 1.
DT 03-AUG-2022, entry version 116.
DE RecName: Full=3-isopropylmalate dehydratase large subunit {ECO:0000255|HAMAP-Rule:MF_01027};
DE EC=4.2.1.33 {ECO:0000255|HAMAP-Rule:MF_01027};
DE AltName: Full=Alpha-IPM isomerase {ECO:0000255|HAMAP-Rule:MF_01027};
DE Short=IPMI {ECO:0000255|HAMAP-Rule:MF_01027};
DE AltName: Full=Isopropylmalate isomerase {ECO:0000255|HAMAP-Rule:MF_01027};
GN Name=leuC {ECO:0000255|HAMAP-Rule:MF_01027}; OrderedLocusNames=TTE0017;
OS Caldanaerobacter subterraneus subsp. tengcongensis (strain DSM 15242 / JCM
OS 11007 / NBRC 100824 / MB4) (Thermoanaerobacter tengcongensis).
OC Bacteria; Firmicutes; Clostridia; Thermoanaerobacterales;
OC Thermoanaerobacteraceae; Caldanaerobacter.
OX NCBI_TaxID=273068;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=DSM 15242 / JCM 11007 / NBRC 100824 / MB4;
RX PubMed=11997336; DOI=10.1101/gr.219302;
RA Bao Q., Tian Y., Li W., Xu Z., Xuan Z., Hu S., Dong W., Yang J., Chen Y.,
RA Xue Y., Xu Y., Lai X., Huang L., Dong X., Ma Y., Ling L., Tan H., Chen R.,
RA Wang J., Yu J., Yang H.;
RT "A complete sequence of the T. tengcongensis genome.";
RL Genome Res. 12:689-700(2002).
CC -!- FUNCTION: Catalyzes the isomerization between 2-isopropylmalate and 3-
CC isopropylmalate, via the formation of 2-isopropylmaleate.
CC {ECO:0000255|HAMAP-Rule:MF_01027}.
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_01027};
CC -!- COFACTOR:
CC Name=[4Fe-4S] cluster; Xref=ChEBI:CHEBI:49883;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_01027};
CC Note=Binds 1 [4Fe-4S] cluster per subunit. {ECO:0000255|HAMAP-
CC Rule:MF_01027};
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_01027}.
CC -!- SUBUNIT: Heterodimer of LeuC and LeuD. {ECO:0000255|HAMAP-
CC Rule:MF_01027}.
CC -!- SIMILARITY: Belongs to the aconitase/IPM isomerase family. LeuC type 2
CC subfamily. {ECO:0000255|HAMAP-Rule:MF_01027}.
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DR EMBL; AE008691; AAM23334.1; -; Genomic_DNA.
DR RefSeq; WP_011024551.1; NC_003869.1.
DR AlphaFoldDB; Q8RDK2; -.
DR SMR; Q8RDK2; -.
DR STRING; 273068.TTE0017; -.
DR EnsemblBacteria; AAM23334; AAM23334; TTE0017.
DR KEGG; tte:TTE0017; -.
DR eggNOG; COG0065; Bacteria.
DR HOGENOM; CLU_006714_3_4_9; -.
DR OMA; GIEHCLL; -.
DR OrthoDB; 749418at2; -.
DR UniPathway; UPA00048; UER00071.
DR Proteomes; UP000000555; 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_01027; LeuC_type2; 1.
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; IPR011826; HAcnase/IPMdehydase_lsu_prok.
DR InterPro; IPR006251; Homoacnase/IPMdehydase_lsu.
DR InterPro; IPR033941; IPMI_cat.
DR InterPro; IPR011823; IsopropMal_deHydtase_lsu_bac.
DR Pfam; PF00330; Aconitase; 1.
DR PRINTS; PR00415; ACONITASE.
DR SUPFAM; SSF53732; SSF53732; 1.
DR TIGRFAMs; TIGR01343; hacA_fam; 1.
DR TIGRFAMs; TIGR02086; IPMI_arch; 1.
DR TIGRFAMs; TIGR02083; LEU2; 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..418
FT /note="3-isopropylmalate dehydratase large subunit"
FT /id="PRO_0000076862"
FT BINDING 298
FT /ligand="[4Fe-4S] cluster"
FT /ligand_id="ChEBI:CHEBI:49883"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01027"
FT BINDING 358
FT /ligand="[4Fe-4S] cluster"
FT /ligand_id="ChEBI:CHEBI:49883"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01027"
FT BINDING 361
FT /ligand="[4Fe-4S] cluster"
FT /ligand_id="ChEBI:CHEBI:49883"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01027"
SQ SEQUENCE 418 AA; 45511 MW; AC3DE00D6E7A97AE CRC64;
MGLTLTQKIL SAKAGREVKP GELIEIDVDM VLGNDITAPV AIKEFEKIGV DKVFDNTKIA
LVPDHFVPSK DIKSAEQVNV MRKFAKKYNI VNFFEVGRMG IEHALLPEQG LVLPGDVVIG
ADSHTCTYGA LTCFATGVGS TDMAAAMATG KAWFKVPEAI KFVLKGNLGK WVSGKDVILY
IIGKIGVDGA LYKSMEFTGN IKALSIDDRF TIANMAIEAG AKNGIFDFDE ITEAYVKKRA
KREYKVFERD EDAEYSEVIE INLDDIRPQV AFPHLPENTR SIDEVGKVKI DQVVIGSCTN
GRLSDMEIAY RILKGKKVHP DVRLIIFPAT QEIYLECVKR GYIEEFIKAG AAVSTPTCGP
CLGGHMGVLA KGERALATTN RNFVGRMGHP ESEVYLASPA VAAASAIAGY IVSPEEVE
