ID   LEUD_SOLUE              Reviewed;         191 AA.
AC   Q01Z80;
DT   05-FEB-2008, integrated into UniProtKB/Swiss-Prot.
DT   14-NOV-2006, sequence version 1.
DT   03-AUG-2022, entry version 87.
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=Acid_4070;
OS   Solibacter usitatus (strain Ellin6076).
OC   Bacteria; Acidobacteria; Bryobacterales; Solibacteraceae;
OC   Candidatus Solibacter.
OX   NCBI_TaxID=234267;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=Ellin6076;
RX   PubMed=19201974; DOI=10.1128/aem.02294-08;
RA   Ward N.L., Challacombe J.F., Janssen P.H., Henrissat B., Coutinho P.M.,
RA   Wu M., Xie G., Haft D.H., Sait M., Badger J., Barabote R.D., Bradley B.,
RA   Brettin T.S., Brinkac L.M., Bruce D., Creasy T., Daugherty S.C.,
RA   Davidsen T.M., DeBoy R.T., Detter J.C., Dodson R.J., Durkin A.S.,
RA   Ganapathy A., Gwinn-Giglio M., Han C.S., Khouri H., Kiss H., Kothari S.P.,
RA   Madupu R., Nelson K.E., Nelson W.C., Paulsen I., Penn K., Ren Q.,
RA   Rosovitz M.J., Selengut J.D., Shrivastava S., Sullivan S.A., Tapia R.,
RA   Thompson L.S., Watkins K.L., Yang Q., Yu C., Zafar N., Zhou L., Kuske C.R.;
RT   "Three genomes from the phylum Acidobacteria provide insight into the
RT   lifestyles of these microorganisms in soils.";
RL   Appl. Environ. Microbiol. 75:2046-2056(2009).
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   ---------------------------------------------------------------------------
CC   Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms
CC   Distributed under the Creative Commons Attribution (CC BY 4.0) License
CC   ---------------------------------------------------------------------------
DR   EMBL; CP000473; ABJ85035.1; -; Genomic_DNA.
DR   RefSeq; WP_011685789.1; NC_008536.1.
DR   AlphaFoldDB; Q01Z80; -.
DR   SMR; Q01Z80; -.
DR   STRING; 234267.Acid_4070; -.
DR   EnsemblBacteria; ABJ85035; ABJ85035; Acid_4070.
DR   KEGG; sus:Acid_4070; -.
DR   eggNOG; COG0066; Bacteria.
DR   HOGENOM; CLU_081378_0_3_0; -.
DR   OMA; AFTTHTG; -.
DR   OrthoDB; 1384217at2; -.
DR   UniPathway; UPA00048; UER00071.
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..191
FT                   /note="3-isopropylmalate dehydratase small subunit"
FT                   /id="PRO_1000063845"
SQ   SEQUENCE   191 AA;  21200 MW;  832C1C1E2A0EFCE2 CRC64;
     MIPFTNFESR LIKLPINNVD TDQIIPARFL KTTSKVGLDK QLFNDWRQDP DFVLNRPESQ
     GLQILLAGDN FGCGSSREHA PWALTQWGFR AVISTSFADI FKQNSLKNSL LPIEVPADVH
     AELFSSDGPA KIDLPNQTLT TPSGREVHFE VDQFSKHCLV KGVDELGYIL EQAPEIAAYE
     ASHPAPINAL A