ID   LEUD_BURPS              Reviewed;         216 AA.
AC   Q63JL1;
DT   10-JAN-2006, integrated into UniProtKB/Swiss-Prot.
DT   25-OCT-2004, sequence version 1.
DT   03-AUG-2022, entry version 92.
DE   RecName: Full=3-isopropylmalate dehydratase small subunit {ECO:0000255|HAMAP-Rule:MF_01031};
DE            EC=4.2.1.33 {ECO:0000255|HAMAP-Rule:MF_01031};
DE   AltName: Full=Alpha-IPM isomerase {ECO:0000255|HAMAP-Rule:MF_01031};
DE            Short=IPMI {ECO:0000255|HAMAP-Rule:MF_01031};
DE   AltName: Full=Isopropylmalate isomerase {ECO:0000255|HAMAP-Rule:MF_01031};
GN   Name=leuD {ECO:0000255|HAMAP-Rule:MF_01031}; OrderedLocusNames=BPSS1706;
OS   Burkholderia pseudomallei (strain K96243).
OC   Bacteria; Proteobacteria; Betaproteobacteria; Burkholderiales;
OC   Burkholderiaceae; Burkholderia; pseudomallei group.
OX   NCBI_TaxID=272560;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=K96243;
RX   PubMed=15377794; DOI=10.1073/pnas.0403302101;
RA   Holden M.T.G., Titball R.W., Peacock S.J., Cerdeno-Tarraga A.-M.,
RA   Atkins T., Crossman L.C., Pitt T., Churcher C., Mungall K.L., Bentley S.D.,
RA   Sebaihia M., Thomson N.R., Bason N., Beacham I.R., Brooks K., Brown K.A.,
RA   Brown N.F., Challis G.L., Cherevach I., Chillingworth T., Cronin A.,
RA   Crossett B., Davis P., DeShazer D., Feltwell T., Fraser A., Hance Z.,
RA   Hauser H., Holroyd S., Jagels K., Keith K.E., Maddison M., Moule S.,
RA   Price C., Quail M.A., Rabbinowitsch E., Rutherford K., Sanders M.,
RA   Simmonds M., Songsivilai S., Stevens K., Tumapa S., Vesaratchavest M.,
RA   Whitehead S., Yeats C., Barrell B.G., Oyston P.C.F., Parkhill J.;
RT   "Genomic plasticity of the causative agent of melioidosis, Burkholderia
RT   pseudomallei.";
RL   Proc. Natl. Acad. Sci. U.S.A. 101:14240-14245(2004).
CC   -!- FUNCTION: Catalyzes the isomerization between 2-isopropylmalate and 3-
CC       isopropylmalate, via the formation of 2-isopropylmaleate.
CC       {ECO:0000255|HAMAP-Rule:MF_01031}.
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_01031};
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_01031}.
CC   -!- SUBUNIT: Heterodimer of LeuC and LeuD. {ECO:0000255|HAMAP-
CC       Rule:MF_01031}.
CC   -!- SIMILARITY: Belongs to the LeuD family. LeuD type 1 subfamily.
CC       {ECO:0000255|HAMAP-Rule:MF_01031}.
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DR   EMBL; BX571966; CAH39179.1; -; Genomic_DNA.
DR   RefSeq; WP_004187882.1; NZ_CP009537.1.
DR   RefSeq; YP_111711.1; NC_006351.1.
DR   AlphaFoldDB; Q63JL1; -.
DR   SMR; Q63JL1; -.
DR   STRING; 272560.BPSS1706; -.
DR   EnsemblBacteria; CAH39179; CAH39179; BPSS1706.
DR   GeneID; 56598060; -.
DR   KEGG; bps:BPSS1706; -.
DR   PATRIC; fig|272560.51.peg.5118; -.
DR   eggNOG; COG0066; Bacteria.
DR   OMA; AFTTHTG; -.
DR   UniPathway; UPA00048; UER00071.
DR   Proteomes; UP000000605; Chromosome 2.
DR   GO; GO:0009316; C:3-isopropylmalate dehydratase complex; IEA:InterPro.
DR   GO; GO:0003861; F:3-isopropylmalate dehydratase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0009098; P:leucine biosynthetic process; IEA:UniProtKB-UniRule.
DR   CDD; cd01577; IPMI_Swivel; 1.
DR   Gene3D; 3.20.19.10; -; 1.
DR   HAMAP; MF_01031; LeuD_type1; 1.
DR   InterPro; IPR004431; 3-IsopropMal_deHydase_ssu.
DR   InterPro; IPR015928; Aconitase/3IPM_dehydase_swvl.
DR   InterPro; IPR000573; AconitaseA/IPMdHydase_ssu_swvl.
DR   InterPro; IPR033940; IPMI_Swivel.
DR   Pfam; PF00694; Aconitase_C; 1.
DR   TIGRFAMs; TIGR00171; leuD; 1.
PE   3: Inferred from homology;
KW   Amino-acid biosynthesis; Branched-chain amino acid biosynthesis;
KW   Leucine biosynthesis; Lyase; Reference proteome.
FT   CHAIN           1..216
FT                   /note="3-isopropylmalate dehydratase small subunit"
FT                   /id="PRO_0000141806"
SQ   SEQUENCE   216 AA;  24726 MW;  558A369A0E23F84F CRC64;
     MEKFNVHTGV VAPLDRENVD TDAIIPKQFL KSIKRTGFGP NAFDEWRYLD HGEPGQDNSK
     RPLNPDFVLN QPRYQGASVL LARKNFGCGS SREHAPWALQ QYGFRAIVAP SFADIFFNNC
     YKNGLLPIVL TEQQVDHLFN DTYAFNGYQL TIDLDAQVVR APDGREYPFE ITAFRKYCLL
     NGFDDIGLTL RHADKIRQFE AERLAKQPWL DNRLVG