ID   LEUD_PSEE4              Reviewed;         214 AA.
AC   Q1ICV9;
DT   05-FEB-2008, integrated into UniProtKB/Swiss-Prot.
DT   13-JUN-2006, sequence version 1.
DT   25-MAY-2022, entry version 89.
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=PSEEN1651;
OS   Pseudomonas entomophila (strain L48).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Pseudomonadales;
OC   Pseudomonadaceae; Pseudomonas.
OX   NCBI_TaxID=384676;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=L48;
RX   PubMed=16699499; DOI=10.1038/nbt1212;
RA   Vodovar N., Vallenet D., Cruveiller S., Rouy Z., Barbe V., Acosta C.,
RA   Cattolico L., Jubin C., Lajus A., Segurens B., Vacherie B., Wincker P.,
RA   Weissenbach J., Lemaitre B., Medigue C., Boccard F.;
RT   "Complete genome sequence of the entomopathogenic and metabolically
RT   versatile soil bacterium Pseudomonas entomophila.";
RL   Nat. Biotechnol. 24:673-679(2006).
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; CT573326; CAK14504.1; -; Genomic_DNA.
DR   RefSeq; WP_011532914.1; NC_008027.1.
DR   AlphaFoldDB; Q1ICV9; -.
DR   SMR; Q1ICV9; -.
DR   STRING; 384676.PSEEN1651; -.
DR   EnsemblBacteria; CAK14504; CAK14504; PSEEN1651.
DR   KEGG; pen:PSEEN1651; -.
DR   eggNOG; COG0066; Bacteria.
DR   HOGENOM; CLU_081378_0_3_6; -.
DR   OMA; AFTTHTG; -.
DR   OrthoDB; 1384217at2; -.
DR   UniPathway; UPA00048; UER00071.
DR   Proteomes; UP000000658; Chromosome.
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.
FT   CHAIN           1..214
FT                   /note="3-isopropylmalate dehydratase small subunit"
FT                   /id="PRO_1000063807"
SQ   SEQUENCE   214 AA;  24158 MW;  24755BFE16BC3AA4 CRC64;
     MKAFTQHIGL VAPLDRANVD TDQIIPKQFL KSIKRTGFGP NLFDEWRYLD VGQPYQDNSK
     RPLNQDFVLN HARYQGASVL LARENFGCGS SREHAPWALD EYGFRSVIAP SFADIFFNNS
     FKNGLLPIIL DAAEVDELFK QVEATPGYQL TIDLEAQAVT RPDGKVLKFE IDAFRKHCLL
     NGLDDIGLTL QDSDAIKAFE GKHRASQPWL FRDA