ID   ILVC_ACAM1              Reviewed;         331 AA.
AC   B0CE35;
DT   20-MAY-2008, integrated into UniProtKB/Swiss-Prot.
DT   26-FEB-2008, sequence version 1.
DT   16-JUN-2009, entry version 11.
DE   RecName: Full=Ketol-acid reductoisomerase;
DE            EC=1.1.1.86;
DE   AltName: Full=Acetohydroxy-acid isomeroreductase;
DE   AltName: Full=Alpha-keto-beta-hydroxylacil reductoisomerase;
GN   Name=ilvC; OrderedLocusNames=AM1_5555;
OS   Acaryochloris marina (strain MBIC 11017).
OC   Bacteria; Cyanobacteria; Acaryochloris.
OX   NCBI_TaxID=329726;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RX   PubMed=18252824; DOI=10.1073/pnas.0709772105;
RA   Swingley W.D., Chen M., Cheung P.C., Conrad A.L., Dejesa L.C., Hao J.,
RA   Honchak B.M., Karbach L.E., Kurdoglu A., Lahiri S., Mastrian S.D.,
RA   Miyashita H., Page L., Ramakrishna P., Satoh S., Sattley W.M.,
RA   Shimada Y., Taylor H.L., Tomo T., Tsuchiya T., Wang Z.T., Raymond J.,
RA   Mimuro M., Blankenship R.E., Touchman J.W.;
RT   "Niche adaptation and genome expansion in the chlorophyll d-producing
RT   cyanobacterium Acaryochloris marina.";
RL   Proc. Natl. Acad. Sci. U.S.A. 105:2005-2010(2008).
CC   -!- CATALYTIC ACTIVITY: (R)-2,3-dihydroxy-3-methylbutanoate + NADP(+)
CC       = (S)-2-hydroxy-2-methyl-3-oxobutanoate + NADPH.
CC   -!- CATALYTIC ACTIVITY: (2R,3R)-2,3-dihydroxy-3-methylpentanoate +
CC       NADP(+) = (S)-2-hydroxy-2-ethyl-3-oxobutanoate + NADPH.
CC   -!- PATHWAY: Amino-acid biosynthesis; L-isoleucine biosynthesis; L-
CC       isoleucine from 2-oxobutanoate: step 2/4.
CC   -!- PATHWAY: Amino-acid biosynthesis; L-valine biosynthesis; L-valine
CC       from pyruvate: step 2/4.
CC   -!- SIMILARITY: Belongs to the ketol-acid reductoisomerase family.
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DR   EMBL; CP000828; ABW30509.1; -; Genomic_DNA.
DR   RefSeq; YP_001519828.1; -.
DR   GeneID; 5684346; -.
DR   GenomeReviews; CP000828_GR; AM1_5555.
DR   KEGG; amr:AM1_5555; -.
DR   OMA; B0CE35; AHGFNIR.
DR   GO; GO:0005488; F:binding; IEA:InterPro.
DR   GO; GO:0004455; F:ketol-acid reductoisomerase activity; IEA:HAMAP.
DR   GO; GO:0009097; P:isoleucine biosynthetic process; IEA:HAMAP.
DR   GO; GO:0055114; P:oxidation reduction; IEA:UniProtKB-KW.
DR   GO; GO:0009099; P:valine biosynthetic process; IEA:HAMAP.
DR   HAMAP; MF_00435; -; 1.
DR   InterPro; IPR013023; AcH_isomrdctse.
DR   InterPro; IPR000506; AcH_isomrdctse_C.
DR   InterPro; IPR013116; IlvN.
DR   InterPro; IPR016040; NAD(P)-bd_dom.
DR   Gene3D; G3DSA:3.40.50.720; NAD(P)-bd; 1.
DR   PANTHER; PTHR21371; AcH_isomrdctse; 1.
DR   Pfam; PF01450; IlvC; 1.
DR   Pfam; PF07991; IlvN; 1.
DR   TIGRFAMs; TIGR00465; ilvC; 1.
PE   3: Inferred from homology;
KW   Amino-acid biosynthesis; Branched-chain amino acid biosynthesis;
KW   Complete proteome; NADP; Oxidoreductase.
FT   CHAIN         1    331       Ketol-acid reductoisomerase.
FT                                /FTId=PRO_1000080616.
FT   ACT_SITE    108    108       Potential.
SQ   SEQUENCE   331 AA;  35989 MW;  645122FA66F8F805 CRC64;
     MARLYYDADA NLDLLANKTV AIIGYGSQGH AHALNLKDSG VQVIVGLYEG SKSAAKAQEA
     GLTVKSAADA AKAADLIMIL LPDEVQRTVY TQDIQPHLSA DKVLAFAHGF NIHFAQVVPP
     SDVDVVMVAP KGPGHLVRRT YTQGQGVPCL FAVYQDASGQ ARDRAMAYAK GIGGTRAGIL
     ETTFREETET DLFGEQAVLC GGLTALIKAG FETLVEAGYQ PELAYFECMH EVKLIVDLIV
     EGGLAKMRDS ISNTAEYGDY TRGPRIVDDR TKAEMRRVLH EIQTGQFAKE FVLENMSGKA
     GFTATRRRES EHAIEEVGKD LRAMFSWTDK A
//