ID FABG_STAAR Reviewed; 246 AA.
AC Q6GHK4;
DT 01-MAR-2005, integrated into UniProtKB/Swiss-Prot.
DT 19-JUL-2004, sequence version 1.
DT 27-MAR-2024, entry version 109.
DE RecName: Full=3-oxoacyl-[acyl-carrier-protein] reductase FabG;
DE EC=1.1.1.100;
DE AltName: Full=3-ketoacyl-acyl carrier protein reductase;
DE AltName: Full=Beta-Ketoacyl-acyl carrier protein reductase;
DE AltName: Full=Beta-ketoacyl-ACP reductase;
GN Name=fabG; OrderedLocusNames=SAR1207;
OS Staphylococcus aureus (strain MRSA252).
OC Bacteria; Bacillota; Bacilli; Bacillales; Staphylococcaceae;
OC Staphylococcus.
OX NCBI_TaxID=282458;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=MRSA252;
RX PubMed=15213324; DOI=10.1073/pnas.0402521101;
RA Holden M.T.G., Feil E.J., Lindsay J.A., Peacock S.J., Day N.P.J.,
RA Enright M.C., Foster T.J., Moore C.E., Hurst L., Atkin R., Barron A.,
RA Bason N., Bentley S.D., Chillingworth C., Chillingworth T., Churcher C.,
RA Clark L., Corton C., Cronin A., Doggett J., Dowd L., Feltwell T., Hance Z.,
RA Harris B., Hauser H., Holroyd S., Jagels K., James K.D., Lennard N.,
RA Line A., Mayes R., Moule S., Mungall K., Ormond D., Quail M.A.,
RA Rabbinowitsch E., Rutherford K.M., Sanders M., Sharp S., Simmonds M.,
RA Stevens K., Whitehead S., Barrell B.G., Spratt B.G., Parkhill J.;
RT "Complete genomes of two clinical Staphylococcus aureus strains: evidence
RT for the rapid evolution of virulence and drug resistance.";
RL Proc. Natl. Acad. Sci. U.S.A. 101:9786-9791(2004).
CC -!- FUNCTION: Catalyzes the NADPH-dependent reduction of beta-ketoacyl-ACP
CC substrates to beta-hydroxyacyl-ACP products, the first reductive step
CC in the elongation cycle of fatty acid biosynthesis. {ECO:0000250}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=a (3R)-hydroxyacyl-[ACP] + NADP(+) = a 3-oxoacyl-[ACP] + H(+)
CC + NADPH; Xref=Rhea:RHEA:17397, Rhea:RHEA-COMP:9916, Rhea:RHEA-
CC COMP:9945, ChEBI:CHEBI:15378, ChEBI:CHEBI:57783, ChEBI:CHEBI:58349,
CC ChEBI:CHEBI:78776, ChEBI:CHEBI:78827; EC=1.1.1.100;
CC -!- PATHWAY: Lipid metabolism; fatty acid biosynthesis.
CC -!- SUBUNIT: Homotetramer. {ECO:0000250}.
CC -!- SIMILARITY: Belongs to the short-chain dehydrogenases/reductases (SDR)
CC family. {ECO:0000305}.
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DR EMBL; BX571856; CAG40209.1; -; Genomic_DNA.
DR AlphaFoldDB; Q6GHK4; -.
DR SMR; Q6GHK4; -.
DR KEGG; sar:SAR1207; -.
DR HOGENOM; CLU_010194_1_3_9; -.
DR UniPathway; UPA00094; -.
DR Proteomes; UP000000596; Chromosome.
DR GO; GO:0004316; F:3-oxoacyl-[acyl-carrier-protein] reductase (NADPH) activity; ISS:UniProtKB.
DR GO; GO:0051287; F:NAD binding; IEA:InterPro.
DR GO; GO:0050661; F:NADP binding; ISS:UniProtKB.
DR GO; GO:0030497; P:fatty acid elongation; ISS:UniProtKB.
DR CDD; cd05333; BKR_SDR_c; 1.
DR Gene3D; 3.40.50.720; NAD(P)-binding Rossmann-like Domain; 1.
DR InterPro; IPR011284; 3oxo_ACP_reduc.
DR InterPro; IPR036291; NAD(P)-bd_dom_sf.
DR InterPro; IPR020904; Sc_DH/Rdtase_CS.
DR InterPro; IPR002347; SDR_fam.
DR NCBIfam; TIGR01830; 3oxo_ACP_reduc; 1.
DR PANTHER; PTHR42879; 3-OXOACYL-(ACYL-CARRIER-PROTEIN) REDUCTASE; 1.
DR PANTHER; PTHR42879:SF2; 3-OXOACYL-[ACYL-CARRIER-PROTEIN] REDUCTASE FABG; 1.
DR Pfam; PF13561; adh_short_C2; 1.
DR PRINTS; PR00081; GDHRDH.
DR PRINTS; PR00080; SDRFAMILY.
DR SMART; SM00822; PKS_KR; 1.
DR SUPFAM; SSF51735; NAD(P)-binding Rossmann-fold domains; 1.
DR PROSITE; PS00061; ADH_SHORT; 1.
PE 3: Inferred from homology;
KW Fatty acid biosynthesis; Fatty acid metabolism; Lipid biosynthesis;
KW Lipid metabolism; NADP; Oxidoreductase.
FT CHAIN 1..246
FT /note="3-oxoacyl-[acyl-carrier-protein] reductase FabG"
FT /id="PRO_0000054686"
FT ACT_SITE 154
FT /note="Proton acceptor"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU10001"
FT BINDING 11..14
FT /ligand="NADP(+)"
FT /ligand_id="ChEBI:CHEBI:58349"
FT /evidence="ECO:0000250"
FT BINDING 62..63
FT /ligand="NADP(+)"
FT /ligand_id="ChEBI:CHEBI:58349"
FT /evidence="ECO:0000250"
FT BINDING 89
FT /ligand="NADP(+)"
FT /ligand_id="ChEBI:CHEBI:58349"
FT /evidence="ECO:0000250"
FT BINDING 141
FT /ligand="substrate"
FT /evidence="ECO:0000250"
FT BINDING 154..158
FT /ligand="NADP(+)"
FT /ligand_id="ChEBI:CHEBI:58349"
FT /evidence="ECO:0000250"
FT BINDING 187
FT /ligand="NADP(+)"
FT /ligand_id="ChEBI:CHEBI:58349"
FT /evidence="ECO:0000250"
SQ SEQUENCE 246 AA; 26146 MW; 2BD7CA319D3A37C5 CRC64;
MKMTKSALVT GASRGIGRSI ALQLAEEGYN VAVNYAGSKE KAEAVVEEIK AKGVDSFAIQ
ANVADADEVK AMIKEVVSQF GSLDVLVNNA GITRDNLLMR MKEQEWDDVI DTNLKGVFNC
IQKATPQMLR QRSGAIINLS SVVGAVGNPG QANYVATKAG VIGLTKSAAR ELASRGITVN
AVAPGFIVSD MTDALSDELK EQMLTQIPLA RFGQDTDIAN TVAFLASDKA KYITGQTIHV
NGGMYM
//
