ID M4ULZ5_9GAMM Unreviewed; 491 AA.
AC M4ULZ5;
DT 29-MAY-2013, integrated into UniProtKB/TrEMBL.
DT 29-MAY-2013, sequence version 1.
DT 24-JAN-2024, entry version 67.
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=PCNPT3_07660 {ECO:0000313|EMBL:AGH81470.1};
OS Psychromonas sp. CNPT3.
OC Bacteria; Pseudomonadota; Gammaproteobacteria; Alteromonadales;
OC Psychromonadaceae; Psychromonas.
OX NCBI_TaxID=314282 {ECO:0000313|EMBL:AGH81470.1, ECO:0000313|Proteomes:UP000010320};
RN [1] {ECO:0000313|EMBL:AGH81470.1, ECO:0000313|Proteomes:UP000010320}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=CNPT3 {ECO:0000313|EMBL:AGH81470.1,
RC ECO:0000313|Proteomes:UP000010320};
RA Lauro F.M., Chastain R.A., Stratton T.K., Ferriera S., Johnson J.,
RA Yayanos A.A., Bartlett D.H.;
RT "The complete genome sequence of the deep-sea bacterium Psychromonas
RT CNPT2.";
RL Submitted (MAR-2013) 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|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}.
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DR EMBL; CP004404; AGH81470.1; -; Genomic_DNA.
DR RefSeq; WP_015465349.1; NC_020802.1.
DR AlphaFoldDB; M4ULZ5; -.
DR STRING; 314282.PCNPT3_07660; -.
DR KEGG; psy:PCNPT3_07660; -.
DR eggNOG; COG0059; Bacteria.
DR HOGENOM; CLU_551905_0_0_6; -.
DR OrthoDB; 9804088at2; -.
DR UniPathway; UPA00047; UER00056.
DR UniPathway; UPA00049; UER00060.
DR Proteomes; UP000010320; Chromosome.
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:AGH81470.1};
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}; Reference proteome {ECO:0000313|Proteomes:UP000010320}.
FT DOMAIN 17..208
FT /note="KARI N-terminal Rossmann"
FT /evidence="ECO:0000259|PROSITE:PS51850"
FT DOMAIN 209..353
FT /note="KARI C-terminal knotted"
FT /evidence="ECO:0000259|PROSITE:PS51851"
FT DOMAIN 354..486
FT /note="KARI C-terminal knotted"
FT /evidence="ECO:0000259|PROSITE:PS51851"
FT BINDING 217
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /ligand_label="2"
FT /evidence="ECO:0000256|PROSITE-ProRule:PRU01198"
FT BINDING 217
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /ligand_label="1"
FT /evidence="ECO:0000256|PROSITE-ProRule:PRU01198"
FT BINDING 221
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /ligand_label="1"
FT /evidence="ECO:0000256|PROSITE-ProRule:PRU01198"
FT BINDING 278
FT /ligand="substrate"
FT /evidence="ECO:0000256|PROSITE-ProRule:PRU01198"
FT BINDING 389
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /ligand_label="2"
FT /evidence="ECO:0000256|PROSITE-ProRule:PRU01198"
FT BINDING 393
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /ligand_label="2"
FT /evidence="ECO:0000256|PROSITE-ProRule:PRU01198"
FT BINDING 414
FT /ligand="substrate"
FT /evidence="ECO:0000256|PROSITE-ProRule:PRU01198"
SQ SEQUENCE 491 AA; 54792 MW; C745D08A186C9C65 CRC64;
MRNYFNSLNL RQQLTQLAQC RFMHSDEFSG TCDLIKDWNI VILGCGSQGL NQGLNMRDSG
LNISYALRPE AISEKRASYL SAKSHGFCVD SIENLVPKAD MVLNLTPDKQ HTHVLNQIMR
LMKQGATLSY SHGFNIVEEG MQVRPDITVI MVAPKCPGTE VREEYKRGFG VPTLIAVHPE
NDPKQQGFDV AKAYACATGG HRAGVLHSSF IAEVKSDLMG EQTILCGMLQ TGAILGYEKM
IAQGVEPNYA SKLIQQGWES ISEALKHGGI THMMDRLSNP DKIKAYDMAQ ELKEILRPLF
EKHMDDIISG EFSKNMMLDW KNDDVNLLKW REDTKQSAFE KAPQSDALID EQEYFDQGVF
LVAMLKAGVE LAFDTMLLAG IGEASAYYES LHETPLIANT IARKRLYEMN KVISDTAEYG
CYLFNHAALP LLSPYVKALP KQVLGGASTT GSNAVDNLRL IEVNRLIRSS KVEKIGAELR
FHMRAMKAIV E
//
