ID   LEUD1_BORBR             Reviewed;         216 AA.
AC   Q7WKH5;
DT   10-JAN-2006, integrated into UniProtKB/Swiss-Prot.
DT   10-JAN-2006, sequence version 2.
DT   25-MAY-2022, entry version 90.
DE   RecName: Full=3-isopropylmalate dehydratase small subunit 1 {ECO:0000255|HAMAP-Rule:MF_01031};
DE            EC=4.2.1.33 {ECO:0000255|HAMAP-Rule:MF_01031};
DE   AltName: Full=Alpha-IPM isomerase 1 {ECO:0000255|HAMAP-Rule:MF_01031};
DE            Short=IPMI 1 {ECO:0000255|HAMAP-Rule:MF_01031};
DE   AltName: Full=Isopropylmalate isomerase 1 {ECO:0000255|HAMAP-Rule:MF_01031};
GN   Name=leuD1 {ECO:0000255|HAMAP-Rule:MF_01031}; OrderedLocusNames=BB2131;
OS   Bordetella bronchiseptica (strain ATCC BAA-588 / NCTC 13252 / RB50)
OS   (Alcaligenes bronchisepticus).
OC   Bacteria; Proteobacteria; Betaproteobacteria; Burkholderiales;
OC   Alcaligenaceae; Bordetella.
OX   NCBI_TaxID=257310;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC BAA-588 / NCTC 13252 / RB50;
RX   PubMed=12910271; DOI=10.1038/ng1227;
RA   Parkhill J., Sebaihia M., Preston A., Murphy L.D., Thomson N.R.,
RA   Harris D.E., Holden M.T.G., Churcher C.M., Bentley S.D., Mungall K.L.,
RA   Cerdeno-Tarraga A.-M., Temple L., James K.D., Harris B., Quail M.A.,
RA   Achtman M., Atkin R., Baker S., Basham D., Bason N., Cherevach I.,
RA   Chillingworth T., Collins M., Cronin A., Davis P., Doggett J., Feltwell T.,
RA   Goble A., Hamlin N., Hauser H., Holroyd S., Jagels K., Leather S.,
RA   Moule S., Norberczak H., O'Neil S., Ormond D., Price C., Rabbinowitsch E.,
RA   Rutter S., Sanders M., Saunders D., Seeger K., Sharp S., Simmonds M.,
RA   Skelton J., Squares R., Squares S., Stevens K., Unwin L., Whitehead S.,
RA   Barrell B.G., Maskell D.J.;
RT   "Comparative analysis of the genome sequences of Bordetella pertussis,
RT   Bordetella parapertussis and Bordetella bronchiseptica.";
RL   Nat. Genet. 35:32-40(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}.
CC   -!- SEQUENCE CAUTION:
CC       Sequence=CAE32627.1; Type=Erroneous initiation; Evidence={ECO:0000305};
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DR   EMBL; BX640443; CAE32627.1; ALT_INIT; Genomic_DNA.
DR   RefSeq; WP_010926388.1; NC_002927.3.
DR   AlphaFoldDB; Q7WKH5; -.
DR   SMR; Q7WKH5; -.
DR   STRING; 257310.BB2131; -.
DR   EnsemblBacteria; CAE32627; CAE32627; BB2131.
DR   GeneID; 56478305; -.
DR   GeneID; 66438382; -.
DR   KEGG; bbr:BB2131; -.
DR   eggNOG; COG0066; Bacteria.
DR   HOGENOM; CLU_081378_0_3_4; -.
DR   OrthoDB; 1384217at2; -.
DR   UniPathway; UPA00048; UER00071.
DR   Proteomes; UP000001027; 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..216
FT                   /note="3-isopropylmalate dehydratase small subunit 1"
FT                   /id="PRO_0000141788"
SQ   SEQUENCE   216 AA;  24484 MW;  7952A3D983C90F28 CRC64;
     MQAFTQHEGL VAPLDRENVD TDLIIPKQFL KSIKRAGFGP NLFDELRYLD HGEPGMDNSK
     RPLNPDFVLN QPRYQGASVL LARKNFGCGS SREHAPWALT QYGFRAIIAP SYADIFFNNS
     FKNGLLPIVL GELEVARLFD EVKAFPGFKL NIDLERQVVI APDGRELGFD IEPFRKYCLL
     NGLDDIGLTL RQADKIRAFE AERLARHPWL ESRPVA