ID G0VKQ6_NAUCC Unreviewed; 395 AA.
AC G0VKQ6;
DT 19-OCT-2011, integrated into UniProtKB/TrEMBL.
DT 19-OCT-2011, sequence version 1.
DT 24-JAN-2024, entry version 53.
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 Name=NCAS0J01150 {ECO:0000313|EMBL:CCC72094.1};
GN OrderedLocusNames=NCAS_0J01150 {ECO:0000313|EMBL:CCC72094.1};
OS Naumovozyma castellii (strain ATCC 76901 / BCRC 22586 / CBS 4309 / NBRC
OS 1992 / NRRL Y-12630) (Yeast) (Saccharomyces castellii).
OC Eukaryota; Fungi; Dikarya; Ascomycota; Saccharomycotina; Saccharomycetes;
OC Saccharomycetales; Saccharomycetaceae; Naumovozyma.
OX NCBI_TaxID=1064592 {ECO:0000313|EMBL:CCC72094.1, ECO:0000313|Proteomes:UP000001640};
RN [1] {ECO:0000313|EMBL:CCC72094.1, ECO:0000313|Proteomes:UP000001640}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 76901 / BCRC 22586 / CBS 4309 / NBRC 1992 / NRRL Y-12630
RC {ECO:0000313|Proteomes:UP000001640};
RX PubMed=22123960; DOI=10.1073/pnas.1112808108;
RA Gordon J.L., Armisen D., Proux-Wera E., OhEigeartaigh S.S., Byrne K.P.,
RA Wolfe K.H.;
RT "Evolutionary erosion of yeast sex chromosomes by mating-type switching
RT accidents.";
RL Proc. Natl. Acad. Sci. U.S.A. 108:20024-20029(2011).
RN [2]
RP NUCLEOTIDE SEQUENCE.
RC STRAIN=Type strain:CBS 4309;
RA Gordon J.L., Armisen D., Proux-Wera E., OhEigeartaigh S.S., Byrne K.P.,
RA Wolfe K.H.;
RT "Genome sequence of Naumovozyma castellii.";
RL Submitted (AUG-2011) to the EMBL/GenBank/DDBJ databases.
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; HE576761; CCC72094.1; -; Genomic_DNA.
DR RefSeq; XP_003678432.1; XM_003678384.1.
DR AlphaFoldDB; G0VKQ6; -.
DR STRING; 1064592.G0VKQ6; -.
DR GeneID; 11525814; -.
DR KEGG; ncs:NCAS_0J01150; -.
DR eggNOG; ENOG502QQBF; Eukaryota.
DR HOGENOM; CLU_033821_1_2_1; -.
DR InParanoid; G0VKQ6; -.
DR OMA; RAMFSWL; -.
DR OrthoDB; 1090117at2759; -.
DR UniPathway; UPA00047; UER00056.
DR UniPathway; UPA00049; UER00060.
DR Proteomes; UP000001640; Chromosome 10.
DR GO; GO:0005739; C:mitochondrion; IEA:UniProtKB-SubCell.
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: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:UP000001640}.
FT DOMAIN 57..246
FT /note="KARI N-terminal Rossmann"
FT /evidence="ECO:0000259|PROSITE:PS51850"
FT DOMAIN 247..394
FT /note="KARI C-terminal knotted"
FT /evidence="ECO:0000259|PROSITE:PS51851"
FT BINDING 255
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /ligand_label="2"
FT /evidence="ECO:0000256|PROSITE-ProRule:PRU01198"
FT BINDING 255
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /ligand_label="1"
FT /evidence="ECO:0000256|PROSITE-ProRule:PRU01198"
FT BINDING 259
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /ligand_label="1"
FT /evidence="ECO:0000256|PROSITE-ProRule:PRU01198"
FT BINDING 291
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /ligand_label="2"
FT /evidence="ECO:0000256|PROSITE-ProRule:PRU01198"
FT BINDING 295
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /ligand_label="2"
FT /evidence="ECO:0000256|PROSITE-ProRule:PRU01198"
FT BINDING 317
FT /ligand="substrate"
FT /evidence="ECO:0000256|PROSITE-ProRule:PRU01198"
SQ SEQUENCE 395 AA; 44326 MW; 27262808C59D8787 CRC64;
MLRSQATRLV CNSRVITAKR TFALASRAAV NMRPAARFVK PMITTRGLKQ INFGGTVETV
YERADWPREK LLNYFKNDTF ALIGYGSQGY GQGLNLRDNG LNVVIGVRKN GASWKAAIED
GWVPGENLFE VEEAIKKGTY VMNLLSDAAQ SETWNTIKPL LTKGKTLYFS HGFSPVFKDL
THVEPPKDLD VILVAPKGSG RTVRSLFKEG RGINSSYAVW NDVSGKAHEK AQALAVAIGS
GYVYQTTFER EVNSDLYGER GCLMGGIHGM FLAQYEVLRE NGHTPSEAFN ETVEEATQSL
YPLIGKYGMD YMYDACSTTA RRGALDWYPI FKDALKPVFQ DLYESTKNGT ETKRSLEFNS
QPDYREKLEA ELQTIRDMEI WGVGKEVRKL RPENN
//
