LEUC_HALLT
ID LEUC_HALLT Reviewed; 473 AA.
AC B9LUZ3;
DT 28-JUL-2009, integrated into UniProtKB/Swiss-Prot.
DT 24-MAR-2009, sequence version 1.
DT 03-AUG-2022, entry version 73.
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=Hlac_0872;
OS Halorubrum lacusprofundi (strain ATCC 49239 / DSM 5036 / JCM 8891 / ACAM
OS 34).
OC Archaea; Euryarchaeota; Stenosarchaea group; Halobacteria; Haloferacales;
OC Halorubraceae; Halorubrum.
OX NCBI_TaxID=416348;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 49239 / DSM 5036 / JCM 8891 / ACAM 34;
RX PubMed=27617060; DOI=10.1186/s40793-016-0194-2;
RA Anderson I.J., DasSarma P., Lucas S., Copeland A., Lapidus A.,
RA Del Rio T.G., Tice H., Dalin E., Bruce D.C., Goodwin L., Pitluck S.,
RA Sims D., Brettin T.S., Detter J.C., Han C.S., Larimer F., Hauser L.,
RA Land M., Ivanova N., Richardson P., Cavicchioli R., DasSarma S.,
RA Woese C.R., Kyrpides N.C.;
RT "Complete genome sequence of the Antarctic Halorubrum lacusprofundi type
RT strain ACAM 34.";
RL Stand. Genomic Sci. 11:70-70(2016).
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; CP001365; ACM56470.1; -; Genomic_DNA.
DR RefSeq; WP_015909621.1; NC_012029.1.
DR AlphaFoldDB; B9LUZ3; -.
DR SMR; B9LUZ3; -.
DR STRING; 416348.Hlac_0872; -.
DR EnsemblBacteria; ACM56470; ACM56470; Hlac_0872.
DR GeneID; 7401242; -.
DR KEGG; hla:Hlac_0872; -.
DR eggNOG; arCOG01698; Archaea.
DR HOGENOM; CLU_006714_3_4_2; -.
DR OMA; VGYVYEY; -.
DR UniPathway; UPA00048; UER00071.
DR Proteomes; UP000000740; Chromosome 1.
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..473
FT /note="3-isopropylmalate dehydratase large subunit"
FT /id="PRO_1000149365"
FT REGION 289..319
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT BINDING 348
FT /ligand="[4Fe-4S] cluster"
FT /ligand_id="ChEBI:CHEBI:49883"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01026"
FT BINDING 408
FT /ligand="[4Fe-4S] cluster"
FT /ligand_id="ChEBI:CHEBI:49883"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01026"
FT BINDING 411
FT /ligand="[4Fe-4S] cluster"
FT /ligand_id="ChEBI:CHEBI:49883"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01026"
SQ SEQUENCE 473 AA; 51198 MW; DB645649DB472990 CRC64;
MSEGTLYDKV WDRHTVTKLP TGQDQLFVGL HLVHEVTSPQ AFGMLKERDQ EVAFPERTHA
TVDHIVPTGN RDRPYRDEAA ENMMAELEAN VRGSGIDFSD PDSGNQGIVH VIGPEQGLTQ
PGMTIVCGDS HTSTHGAFGA LAFGIGTSQI RDVLATGCIA MEKQQVRKIE VTGELGEGVT
AKDVILTIIG KLGTDGGVGY VYEYAGEAIE DLGMEGRMSI CNMSIEGGAR AGYVNPDETT
YEWLAETDAF ADDPEKFERL KPYWESIRSD ADAEYDDVVT IDGSAIEPTV TWGTTPGQTA
GITEPIPDPD DLPEEDRDTA KRAQKHMRVE PGDTMEGYDI DVAFLGSCTN ARLKDLREAA
AFVEGREVDD DVRAMVVPGS QRVRDAAEAE GIDEIFIEAG FDWREPGCSM CLGMNDDQLV
GDEASASSSN RNFVGRQGSK DGRTVLMSPI MVAAAAVTGE VTDVREMEEV ATV
