ID A2QU08_ASPNC Unreviewed; 401 AA.
AC A2QU08;
DT 06-MAR-2007, integrated into UniProtKB/TrEMBL.
DT 06-MAR-2007, sequence version 1.
DT 27-MAR-2024, entry version 103.
DE RecName: Full=Ketol-acid reductoisomerase, mitochondrial {ECO:0000256|PIRNR:PIRNR000119};
DE EC=1.1.1.86 {ECO:0000256|PIRNR:PIRNR000119};
DE AltName: Full=Acetohydroxy-acid reductoisomerase {ECO:0000256|PIRNR:PIRNR000119};
DE AltName: Full=Alpha-keto-beta-hydroxylacyl reductoisomerase {ECO:0000256|PIRNR:PIRNR000119};
GN ORFNames=An09g03940 {ECO:0000313|EMBL:CAK96836.1};
OS Aspergillus niger (strain ATCC MYA-4892 / CBS 513.88 / FGSC A1513).
OC Eukaryota; Fungi; Dikarya; Ascomycota; Pezizomycotina; Eurotiomycetes;
OC Eurotiomycetidae; Eurotiales; Aspergillaceae; Aspergillus;
OC Aspergillus subgen. Circumdati.
OX NCBI_TaxID=425011 {ECO:0000313|EMBL:CAK96836.1, ECO:0000313|Proteomes:UP000006706};
RN [1] {ECO:0000313|EMBL:CAK96836.1, ECO:0000313|Proteomes:UP000006706}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=CBS 513.88 / FGSC A1513 / ATCC MYA-4892
RC {ECO:0000313|Proteomes:UP000006706};
RX PubMed=17259976; DOI=10.1038/nbt1282;
RA Pel H.J., de Winde J.H., Archer D.B., Dyer P.S., Hofmann G., Schaap P.J.,
RA Turner G., de Vries R.P., Albang R., Albermann K., Andersen M.R.,
RA Bendtsen J.D., Benen J.A., van den Berg M., Breestraat S., Caddick M.X.,
RA Contreras R., Cornell M., Coutinho P.M., Danchin E.G., Debets A.J.,
RA Dekker P., van Dijck P.W., van Dijk A., Dijkhuizen L., Driessen A.J.,
RA d'Enfert C., Geysens S., Goosen C., Groot G.S., de Groot P.W.,
RA Guillemette T., Henrissat B., Herweijer M., van den Hombergh J.P.,
RA van den Hondel C.A., van der Heijden R.T., van der Kaaij R.M., Klis F.M.,
RA Kools H.J., Kubicek C.P., van Kuyk P.A., Lauber J., Lu X.,
RA van der Maarel M.J., Meulenberg R., Menke H., Mortimer M.A., Nielsen J.,
RA Oliver S.G., Olsthoorn M., Pal K., van Peij N.N., Ram A.F., Rinas U.,
RA Roubos J.A., Sagt C.M., Schmoll M., Sun J., Ussery D., Varga J.,
RA Vervecken W., van de Vondervoort P.J., Wedler H., Wosten H.A., Zeng A.P.,
RA van Ooyen A.J., Visser J., Stam H.;
RT "Genome sequencing and analysis of the versatile cell factory Aspergillus
RT niger CBS 513.88.";
RL Nat. Biotechnol. 25:221-231(2007).
CC -!- CATALYTIC ACTIVITY:
CC Reaction=(2R)-2,3-dihydroxy-3-methylbutanoate + NADP(+) = (2S)-2-
CC acetolactate + H(+) + NADPH; Xref=Rhea:RHEA:22068, ChEBI:CHEBI:15378,
CC ChEBI:CHEBI:49072, ChEBI:CHEBI:57783, ChEBI:CHEBI:58349,
CC ChEBI:CHEBI:58476; EC=1.1.1.86;
CC Evidence={ECO:0000256|PIRNR:PIRNR000119};
CC -!- CATALYTIC ACTIVITY:
CC Reaction=(2R,3R)-2,3-dihydroxy-3-methylpentanoate + NADP(+) = (S)-2-
CC ethyl-2-hydroxy-3-oxobutanoate + H(+) + NADPH; Xref=Rhea:RHEA:13493,
CC ChEBI:CHEBI:15378, ChEBI:CHEBI:49256, ChEBI:CHEBI:49258,
CC ChEBI:CHEBI:57783, ChEBI:CHEBI:58349; EC=1.1.1.86;
CC Evidence={ECO:0000256|PIRNR:PIRNR000119};
CC -!- COFACTOR:
CC Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC Evidence={ECO:0000256|PIRNR:PIRNR000119};
CC Note=Binds 2 magnesium ions per subunit.
CC {ECO:0000256|PIRNR:PIRNR000119};
CC -!- PATHWAY: Amino-acid biosynthesis; L-isoleucine biosynthesis; L-
CC isoleucine from 2-oxobutanoate: step 2/4.
CC {ECO:0000256|ARBA:ARBA00004885}.
CC -!- PATHWAY: Amino-acid biosynthesis; L-valine biosynthesis; L-valine from
CC pyruvate: step 2/4. {ECO:0000256|ARBA:ARBA00004864}.
CC -!- SUBCELLULAR LOCATION: Mitochondrion {ECO:0000256|PIRNR:PIRNR000119}.
CC -!- SIMILARITY: Belongs to the ketol-acid reductoisomerase family.
CC {ECO:0000256|ARBA:ARBA00010318, ECO:0000256|PIRNR:PIRNR000119,
CC ECO:0000256|PROSITE-ProRule:PRU01198}.
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DR EMBL; AM270199; CAK96836.1; -; Genomic_DNA.
DR RefSeq; XP_001393710.1; XM_001393673.2.
DR AlphaFoldDB; A2QU08; -.
DR EnsemblFungi; CAK96836; CAK96836; An09g03940.
DR GeneID; 4983929; -.
DR KEGG; ang:An09g03940; -.
DR VEuPathDB; FungiDB:An09g03940; -.
DR HOGENOM; CLU_033821_1_2_1; -.
DR OrthoDB; 1090117at2759; -.
DR UniPathway; UPA00047; UER00056.
DR UniPathway; UPA00049; UER00060.
DR Proteomes; UP000006706; Chromosome 1L.
DR GO; GO:0042645; C:mitochondrial nucleoid; IEA:EnsemblFungi.
DR GO; GO:0003690; F:double-stranded DNA binding; IEA:EnsemblFungi.
DR GO; GO:0004455; F:ketol-acid reductoisomerase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-UniRule.
DR GO; GO:0009097; P:isoleucine biosynthetic process; IEA:UniProtKB-UniRule.
DR GO; GO:0000002; P:mitochondrial genome maintenance; IEA:EnsemblFungi.
DR GO; GO:0009099; P:valine biosynthetic process; IEA:UniProtKB-UniRule.
DR Gene3D; 3.40.50.720; NAD(P)-binding Rossmann-like Domain; 1.
DR InterPro; IPR008927; 6-PGluconate_DH-like_C_sf.
DR InterPro; IPR013328; 6PGD_dom2.
DR InterPro; IPR013023; KARI.
DR InterPro; IPR000506; KARI_C.
DR InterPro; IPR013116; KARI_N.
DR InterPro; IPR016207; KetolA_reductoisomerase_fun.
DR InterPro; IPR036291; NAD(P)-bd_dom_sf.
DR NCBIfam; TIGR00465; ilvC; 1.
DR PANTHER; PTHR21371; KETOL-ACID REDUCTOISOMERASE, MITOCHONDRIAL; 1.
DR PANTHER; PTHR21371:SF1; KETOL-ACID REDUCTOISOMERASE, MITOCHONDRIAL; 1.
DR Pfam; PF01450; IlvC; 1.
DR Pfam; PF07991; IlvN; 1.
DR PIRSF; PIRSF000119; Ilv5_fungal; 1.
DR SUPFAM; SSF48179; 6-phosphogluconate dehydrogenase C-terminal domain-like; 1.
DR SUPFAM; SSF51735; NAD(P)-binding Rossmann-fold domains; 1.
DR PROSITE; PS51851; KARI_C; 1.
DR PROSITE; PS51850; KARI_N; 1.
PE 3: Inferred from homology;
KW Amino-acid biosynthesis {ECO:0000256|ARBA:ARBA00022605,
KW ECO:0000256|PIRNR:PIRNR000119};
KW Branched-chain amino acid biosynthesis {ECO:0000256|ARBA:ARBA00023304,
KW ECO:0000256|PIRNR:PIRNR000119};
KW Magnesium {ECO:0000256|ARBA:ARBA00022842, ECO:0000256|PIRNR:PIRNR000119};
KW Metal-binding {ECO:0000256|ARBA:ARBA00022723,
KW ECO:0000256|PIRNR:PIRNR000119};
KW Mitochondrion {ECO:0000256|PIRNR:PIRNR000119};
KW NADP {ECO:0000256|PIRNR:PIRNR000119};
KW Oxidoreductase {ECO:0000256|ARBA:ARBA00023002,
KW ECO:0000256|PIRNR:PIRNR000119};
KW Reference proteome {ECO:0000313|Proteomes:UP000006706}.
FT DOMAIN 62..251
FT /note="KARI N-terminal Rossmann"
FT /evidence="ECO:0000259|PROSITE:PS51850"
FT DOMAIN 252..399
FT /note="KARI C-terminal knotted"
FT /evidence="ECO:0000259|PROSITE:PS51851"
FT BINDING 260
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /ligand_label="1"
FT /evidence="ECO:0000256|PROSITE-ProRule:PRU01198"
FT BINDING 260
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /ligand_label="2"
FT /evidence="ECO:0000256|PROSITE-ProRule:PRU01198"
FT BINDING 264
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /ligand_label="1"
FT /evidence="ECO:0000256|PROSITE-ProRule:PRU01198"
FT BINDING 296
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /ligand_label="2"
FT /evidence="ECO:0000256|PROSITE-ProRule:PRU01198"
FT BINDING 300
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /ligand_label="2"
FT /evidence="ECO:0000256|PROSITE-ProRule:PRU01198"
FT BINDING 322
FT /ligand="substrate"
FT /evidence="ECO:0000256|PROSITE-ProRule:PRU01198"
SQ SEQUENCE 401 AA; 44559 MW; F5117B8667EB0E11 CRC64;
MASRGLPRAL RLARVAAPRS VVTAALPRPS LAKAASAALP RVTATPVVPS RGVKTITFAD
DKETVYERED WPREKLQEYF KNDTLALIGY GSQGHGQGLN LRDQGLNVIV GVRKDGASWK
EAIQDGWVPG KNLFDVTEAV KKGTIIMNLL SDAAQSETWP TLKPLITKGK TLYFSHGFSP
VFKDLTKVDV PTDVDVILVA PKGSGRTVRT LFREGRGINS SVAVFQDVTG NAKERAIAMG
VAVGSGYLYE TTFEKEVYSD LYGERGCLMG GIHGMFLAQY EVLRERGHSP SEAFNETVEE
ATQSLYPLIG ANGMDWMYAA CSTTARRGAL DWSNRFKDNL KPLFNELYDS VRDGSETKRS
LEYNSQKDYR EKYEKEMQDI RDLEIWRAGK AVRSLRPENQ K
//
