ID   LEUD_BLOFL              Reviewed;         204 AA.
AC   Q7VQJ9;
DT   10-JAN-2006, integrated into UniProtKB/Swiss-Prot.
DT   01-OCT-2003, sequence version 1.
DT   03-AUG-2022, entry version 102.
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=Bfl130;
OS   Blochmannia floridanus.
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC   Enterobacteriaceae; ant endosymbionts; Candidatus Blochmannia.
OX   NCBI_TaxID=203907;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RX   PubMed=12886019; DOI=10.1073/pnas.1533499100;
RA   Gil R., Silva F.J., Zientz E., Delmotte F., Gonzalez-Candelas F.,
RA   Latorre A., Rausell C., Kamerbeek J., Gadau J., Hoelldobler B.,
RA   van Ham R.C.H.J., Gross R., Moya A.;
RT   "The genome sequence of Blochmannia floridanus: comparative analysis of
RT   reduced genomes.";
RL   Proc. Natl. Acad. Sci. U.S.A. 100:9388-9393(2003).
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; BX248583; CAD83651.1; -; Genomic_DNA.
DR   RefSeq; WP_011126419.1; NC_005061.1.
DR   AlphaFoldDB; Q7VQJ9; -.
DR   SMR; Q7VQJ9; -.
DR   STRING; 203907.Bfl130; -.
DR   EnsemblBacteria; CAD83651; CAD83651; Bfl130.
DR   KEGG; bfl:Bfl130; -.
DR   eggNOG; COG0066; Bacteria.
DR   HOGENOM; CLU_081378_0_3_6; -.
DR   OMA; ANCFQNG; -.
DR   OrthoDB; 1384217at2; -.
DR   UniPathway; UPA00048; UER00071.
DR   Proteomes; UP000002192; 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; Reference proteome.
FT   CHAIN           1..204
FT                   /note="3-isopropylmalate dehydratase small subunit"
FT                   /id="PRO_0000141786"
SQ   SEQUENCE   204 AA;  23886 MW;  FAC6E2DEC5F1D4FF CRC64;
     MSAFTQHTGI ALPLNITNID TDNIIPKQFL KITSRSNLGK YLFFNWRYLE NTPHTPNINF
     VLNNPYYQNA SILITRKNFG CGSSREHAVW ALIDYGFRVI IASSFANIFY KNSFNNRLLL
     VTLSESEIHS IFQNIHIHTH NNNKLFITVN LCENTVSIKN KKYFFKIKDS YRNYMLNNLD
     KISLTLKFES NIQKHENNQP LFLK