ID A4N0I5_HAEIF Unreviewed; 450 AA.
AC A4N0I5;
DT 15-MAY-2007, integrated into UniProtKB/TrEMBL.
DT 15-MAY-2007, sequence version 1.
DT 24-JAN-2024, entry version 89.
DE RecName: Full=Ketol-acid reductoisomerase (NADP(+)) {ECO:0000256|ARBA:ARBA00015731};
DE EC=1.1.1.86 {ECO:0000256|ARBA:ARBA00013102};
DE AltName: Full=Acetohydroxy-acid isomeroreductase {ECO:0000256|ARBA:ARBA00032744};
GN ORFNames=CGSHi22121_01217 {ECO:0000313|EMBL:EDJ87908.1};
OS Haemophilus influenzae 22.1-21.
OC Bacteria; Pseudomonadota; Gammaproteobacteria; Pasteurellales;
OC Pasteurellaceae; Haemophilus.
OX NCBI_TaxID=374927 {ECO:0000313|EMBL:EDJ87908.1, ECO:0000313|Proteomes:UP000004131};
RN [1] {ECO:0000313|EMBL:EDJ87908.1, ECO:0000313|Proteomes:UP000004131}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=22.1-21 {ECO:0000313|EMBL:EDJ87908.1,
RC ECO:0000313|Proteomes:UP000004131};
RX PubMed=17550610; DOI=10.1186/gb-2007-8-6-r103;
RA Hogg J.S., Hu F.Z., Janto B., Boissy R., Hayes J., Keefe R., Post J.C.,
RA Ehrlich G.D.;
RT "Characterization and modeling of the Haemophilus influenzae core and
RT supragenomes based on the complete genomic sequences of Rd and 12 clinical
RT nontypeable strains.";
RL Genome Biol. 8:R103.1-R103.18(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|ARBA:ARBA00000507};
CC -!- COFACTOR:
CC Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC Evidence={ECO:0000256|ARBA:ARBA00001946};
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 -!- SIMILARITY: Belongs to the ketol-acid reductoisomerase family.
CC {ECO:0000256|ARBA:ARBA00010318, ECO:0000256|PROSITE-ProRule:PRU01198}.
CC -!- CAUTION: Lacks conserved residue(s) required for the propagation of
CC feature annotation. {ECO:0000256|PROSITE-ProRule:PRU01198}.
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; AAZD01000005; EDJ87908.1; -; Genomic_DNA.
DR AlphaFoldDB; A4N0I5; -.
DR UniPathway; UPA00047; UER00056.
DR UniPathway; UPA00049; UER00060.
DR Proteomes; UP000004131; Unassembled WGS sequence.
DR GO; GO:0016853; F:isomerase activity; IEA:UniProtKB-KW.
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; 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; 2.
DR Pfam; PF07991; IlvN; 1.
DR SUPFAM; SSF48179; 6-phosphogluconate dehydrogenase C-terminal domain-like; 2.
DR SUPFAM; SSF51735; NAD(P)-binding Rossmann-fold domains; 1.
DR PROSITE; PS51851; KARI_C; 2.
DR PROSITE; PS51850; KARI_N; 1.
PE 3: Inferred from homology;
KW Amino-acid biosynthesis {ECO:0000256|ARBA:ARBA00022605,
KW ECO:0000256|PROSITE-ProRule:PRU01198};
KW Branched-chain amino acid biosynthesis {ECO:0000256|ARBA:ARBA00023304,
KW ECO:0000256|PROSITE-ProRule:PRU01198};
KW Isomerase {ECO:0000313|EMBL:EDJ87908.1};
KW Magnesium {ECO:0000256|ARBA:ARBA00022842, ECO:0000256|PROSITE-
KW ProRule:PRU01198};
KW Metal-binding {ECO:0000256|ARBA:ARBA00022723, ECO:0000256|PROSITE-
KW ProRule:PRU01198};
KW Oxidoreductase {ECO:0000256|ARBA:ARBA00023002, ECO:0000256|PROSITE-
KW ProRule:PRU01198}.
FT DOMAIN 1..166
FT /note="KARI N-terminal Rossmann"
FT /evidence="ECO:0000259|PROSITE:PS51850"
FT DOMAIN 167..302
FT /note="KARI C-terminal knotted"
FT /evidence="ECO:0000259|PROSITE:PS51851"
FT DOMAIN 303..443
FT /note="KARI C-terminal knotted"
FT /evidence="ECO:0000259|PROSITE:PS51851"
FT BINDING 175
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /ligand_label="1"
FT /evidence="ECO:0000256|PROSITE-ProRule:PRU01198"
FT BINDING 175
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /ligand_label="2"
FT /evidence="ECO:0000256|PROSITE-ProRule:PRU01198"
FT BINDING 179
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /ligand_label="1"
FT /evidence="ECO:0000256|PROSITE-ProRule:PRU01198"
FT BINDING 236
FT /ligand="substrate"
FT /evidence="ECO:0000256|PROSITE-ProRule:PRU01198"
FT BINDING 347
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /ligand_label="2"
FT /evidence="ECO:0000256|PROSITE-ProRule:PRU01198"
FT BINDING 351
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /ligand_label="2"
FT /evidence="ECO:0000256|PROSITE-ProRule:PRU01198"
FT BINDING 372
FT /ligand="substrate"
FT /evidence="ECO:0000256|PROSITE-ProRule:PRU01198"
SQ SEQUENCE 450 AA; 49265 MW; 1F105B1DFD2D5877 CRC64;
MGCGAQGLNQ GLNMRDSGLD ISYALRPEAI AEKRASFQRA TENGFKVGTY EELIPTADLV
VNLTPDKQHS KVVADVMPLM KKDSAFGYSH GFNIVEVGEE IRKDITVVMV APKCPGTEVR
EEYKRGFGVP TLIAVHPEND PKGEGMAIAK AWAAATGGHK AGVLESSFVA EVKSDLMGEQ
TILCGMLQAG SIVCYDKLVA DGKDPAYAGK LIQYGWETIT EALKQGGITL MMDRLSNSAK
LRAFELAEQI KESLGFLYYK HMDDIISGHF SATMMADWAN GDKDLFAWRE ATGKTAFENA
PKYDGKISEQ EYFDNGVLMI AMVKAGVELA FEAMVASGIY EESAYYESLH ELPLIANTIA
RKRLYEMNVV ISDTAEYGNY LFSNVATPIL AKEIIPNLQK GDLGEPTPAV EVDNITLRDV
NDAIRNHPVE LIGQELRGYM TDMKRIAVAG
//
