ID   FABG_CHLMU              Reviewed;         248 AA.
AC   Q9PKF7;
DT   27-APR-2001, integrated into UniProtKB/Swiss-Prot.
DT   01-OCT-2000, sequence version 1.
DT   27-MAR-2024, entry version 132.
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=TC_0508;
OS   Chlamydia muridarum (strain MoPn / Nigg).
OC   Bacteria; Chlamydiota; Chlamydiia; Chlamydiales; Chlamydiaceae;
OC   Chlamydia/Chlamydophila group; Chlamydia.
OX   NCBI_TaxID=243161;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=MoPn / Nigg;
RX   PubMed=10684935; DOI=10.1093/nar/28.6.1397;
RA   Read T.D., Brunham R.C., Shen C., Gill S.R., Heidelberg J.F., White O.,
RA   Hickey E.K., Peterson J.D., Utterback T.R., Berry K.J., Bass S.,
RA   Linher K.D., Weidman J.F., Khouri H.M., Craven B., Bowman C., Dodson R.J.,
RA   Gwinn M.L., Nelson W.C., DeBoy R.T., Kolonay J.F., McClarty G.,
RA   Salzberg S.L., Eisen J.A., Fraser C.M.;
RT   "Genome sequences of Chlamydia trachomatis MoPn and Chlamydia pneumoniae
RT   AR39.";
RL   Nucleic Acids Res. 28:1397-1406(2000).
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; AE002160; AAF39350.1; -; Genomic_DNA.
DR   PIR; E81695; E81695.
DR   RefSeq; WP_010230638.1; NZ_CP063055.1.
DR   AlphaFoldDB; Q9PKF7; -.
DR   SMR; Q9PKF7; -.
DR   GeneID; 1245868; -.
DR   KEGG; cmu:TC_0508; -.
DR   eggNOG; COG1028; Bacteria.
DR   HOGENOM; CLU_010194_1_3_0; -.
DR   OrthoDB; 9803333at2; -.
DR   UniPathway; UPA00094; -.
DR   Proteomes; UP000000800; Chromosome.
DR   GO; GO:0004316; F:3-oxoacyl-[acyl-carrier-protein] reductase (NADPH) activity; IEA:UniProtKB-EC.
DR   GO; GO:0051287; F:NAD binding; IEA:InterPro.
DR   GO; GO:0006633; P:fatty acid biosynthetic process; IEA:UniProtKB-UniPathway.
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..248
FT                   /note="3-oxoacyl-[acyl-carrier-protein] reductase FabG"
FT                   /id="PRO_0000054669"
FT   ACT_SITE        157
FT                   /note="Proton acceptor"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU10001"
FT   BINDING         14..17
FT                   /ligand="NADP(+)"
FT                   /ligand_id="ChEBI:CHEBI:58349"
FT                   /evidence="ECO:0000250"
FT   BINDING         65..66
FT                   /ligand="NADP(+)"
FT                   /ligand_id="ChEBI:CHEBI:58349"
FT                   /evidence="ECO:0000250"
FT   BINDING         92
FT                   /ligand="NADP(+)"
FT                   /ligand_id="ChEBI:CHEBI:58349"
FT                   /evidence="ECO:0000250"
FT   BINDING         144
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000250"
FT   BINDING         157..161
FT                   /ligand="NADP(+)"
FT                   /ligand_id="ChEBI:CHEBI:58349"
FT                   /evidence="ECO:0000250"
FT   BINDING         190
FT                   /ligand="NADP(+)"
FT                   /ligand_id="ChEBI:CHEBI:58349"
FT                   /evidence="ECO:0000250"
SQ   SEQUENCE   248 AA;  25977 MW;  1F5C8968CB05FF58 CRC64;
     MNSLLVNKAA IVTGGSRGIG FGIAKLFAEH GANVQIWGIN EEAGKSAAQD LSDKTGSKVS
     FALVDVSKND MVSAQVQKFL AEYGTIDVVV NNAGITRDSL LMRMSEEEWS SVIDTNLGSI
     YNVCSAVIRP MIKARSGAIV NISSIVGLRG SPGQTNYAAA KAGIIGFSKA LSKEVGSKNI
     RVNCIAPGFI DTDMTKGLSD NLKNEWLKGV PLGRVGTPEE IAMAALFLAS NQSSYITGQV
     LSVDGGMA
//