FABG_THEMA
ID FABG_THEMA Reviewed; 246 AA.
AC Q9X248;
DT 30-MAY-2000, integrated into UniProtKB/Swiss-Prot.
DT 01-NOV-1999, sequence version 1.
DT 03-AUG-2022, entry version 133.
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=TM_1724;
OS Thermotoga maritima (strain ATCC 43589 / DSM 3109 / JCM 10099 / NBRC 100826
OS / MSB8).
OC Bacteria; Thermotogae; Thermotogales; Thermotogaceae; Thermotoga.
OX NCBI_TaxID=243274;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 43589 / DSM 3109 / JCM 10099 / NBRC 100826 / MSB8;
RX PubMed=10360571; DOI=10.1038/20601;
RA Nelson K.E., Clayton R.A., Gill S.R., Gwinn M.L., Dodson R.J., Haft D.H.,
RA Hickey E.K., Peterson J.D., Nelson W.C., Ketchum K.A., McDonald L.A.,
RA Utterback T.R., Malek J.A., Linher K.D., Garrett M.M., Stewart A.M.,
RA Cotton M.D., Pratt M.S., Phillips C.A., Richardson D.L., Heidelberg J.F.,
RA Sutton G.G., Fleischmann R.D., Eisen J.A., White O., Salzberg S.L.,
RA Smith H.O., Venter J.C., Fraser C.M.;
RT "Evidence for lateral gene transfer between Archaea and Bacteria from
RT genome sequence of Thermotoga maritima.";
RL Nature 399:323-329(1999).
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; AE000512; AAD36790.1; -; Genomic_DNA.
DR PIR; H72219; H72219.
DR RefSeq; NP_229523.1; NC_000853.1.
DR RefSeq; WP_004082240.1; NZ_CP011107.1.
DR AlphaFoldDB; Q9X248; -.
DR SMR; Q9X248; -.
DR STRING; 243274.THEMA_05620; -.
DR EnsemblBacteria; AAD36790; AAD36790; TM_1724.
DR KEGG; tma:TM1724; -.
DR eggNOG; COG1028; Bacteria.
DR InParanoid; Q9X248; -.
DR OMA; KGAFYCA; -.
DR OrthoDB; 1601931at2; -.
DR UniPathway; UPA00094; -.
DR Proteomes; UP000008183; 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 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 PRINTS; PR00081; GDHRDH.
DR PRINTS; PR00080; SDRFAMILY.
DR SUPFAM; SSF51735; SSF51735; 1.
DR TIGRFAMs; TIGR01830; 3oxo_ACP_reduc; 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; Reference proteome.
FT CHAIN 1..246
FT /note="3-oxoacyl-[acyl-carrier-protein] reductase FabG"
FT /id="PRO_0000054693"
FT ACT_SITE 154
FT /note="Proton acceptor"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU10001"
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; 26402 MW; 8C08904D28099142 CRC64;
MRLEGKVCLI TGAASGIGKA TTLLFAQEGA TVIAGDISKE NLDSLVKEAE GLPGKVDPYV
LNVTDRDQIK EVVEKVVQKY GRIDVLVNNA GITRDALLVR MKEEDWDAVI NVNLKGVFNV
TQMVVPYMIK QRNGSIVNVS SVVGIYGNPG QTNYAASKAG VIGMTKTWAK ELAGRNIRVN
AVAPGFIETP MTEKLPEKAR ETALSRIPLG RFGKPEEVAQ VILFLASDES SYVTGQVIGI
DGGLVI
