FABH_NEIG2
ID FABH_NEIG2 Reviewed; 320 AA.
AC B4RJI1;
DT 28-JUL-2009, integrated into UniProtKB/Swiss-Prot.
DT 23-SEP-2008, sequence version 1.
DT 25-MAY-2022, entry version 75.
DE RecName: Full=3-oxoacyl-[acyl-carrier-protein] synthase 3 {ECO:0000255|HAMAP-Rule:MF_01815};
DE EC=2.3.1.180 {ECO:0000255|HAMAP-Rule:MF_01815};
DE AltName: Full=3-oxoacyl-[acyl-carrier-protein] synthase III {ECO:0000255|HAMAP-Rule:MF_01815};
DE AltName: Full=Beta-ketoacyl-ACP synthase III {ECO:0000255|HAMAP-Rule:MF_01815};
DE Short=KAS III {ECO:0000255|HAMAP-Rule:MF_01815};
GN Name=fabH {ECO:0000255|HAMAP-Rule:MF_01815}; OrderedLocusNames=NGK_2647;
OS Neisseria gonorrhoeae (strain NCCP11945).
OC Bacteria; Proteobacteria; Betaproteobacteria; Neisseriales; Neisseriaceae;
OC Neisseria.
OX NCBI_TaxID=521006;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=NCCP11945;
RX PubMed=18586945; DOI=10.1128/jb.00566-08;
RA Chung G.T., Yoo J.S., Oh H.B., Lee Y.S., Cha S.H., Kim S.J., Yoo C.K.;
RT "Complete genome sequence of Neisseria gonorrhoeae NCCP11945.";
RL J. Bacteriol. 190:6035-6036(2008).
CC -!- FUNCTION: Catalyzes the condensation reaction of fatty acid synthesis
CC by the addition to an acyl acceptor of two carbons from malonyl-ACP.
CC Catalyzes the first condensation reaction which initiates fatty acid
CC synthesis and may therefore play a role in governing the total rate of
CC fatty acid production. Possesses both acetoacetyl-ACP synthase and
CC acetyl transacylase activities. Its substrate specificity determines
CC the biosynthesis of branched-chain and/or straight-chain of fatty
CC acids. {ECO:0000255|HAMAP-Rule:MF_01815}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=acetyl-CoA + H(+) + malonyl-[ACP] = 3-oxobutanoyl-[ACP] + CO2
CC + CoA; Xref=Rhea:RHEA:12080, Rhea:RHEA-COMP:9623, Rhea:RHEA-
CC COMP:9625, ChEBI:CHEBI:15378, ChEBI:CHEBI:16526, ChEBI:CHEBI:57287,
CC ChEBI:CHEBI:57288, ChEBI:CHEBI:78449, ChEBI:CHEBI:78450;
CC EC=2.3.1.180; Evidence={ECO:0000255|HAMAP-Rule:MF_01815};
CC -!- PATHWAY: Lipid metabolism; fatty acid biosynthesis. {ECO:0000255|HAMAP-
CC Rule:MF_01815}.
CC -!- SUBUNIT: Homodimer. {ECO:0000255|HAMAP-Rule:MF_01815}.
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_01815}.
CC -!- DOMAIN: The last Arg residue of the ACP-binding site is essential for
CC the weak association between ACP/AcpP and FabH. {ECO:0000255|HAMAP-
CC Rule:MF_01815}.
CC -!- SIMILARITY: Belongs to the thiolase-like superfamily. FabH family.
CC {ECO:0000255|HAMAP-Rule:MF_01815}.
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DR EMBL; CP001050; ACF31246.1; -; Genomic_DNA.
DR RefSeq; WP_003687179.1; NC_011035.1.
DR AlphaFoldDB; B4RJI1; -.
DR SMR; B4RJI1; -.
DR EnsemblBacteria; ACF31246; ACF31246; NGK_2647.
DR GeneID; 66754496; -.
DR KEGG; ngk:NGK_2647; -.
DR HOGENOM; CLU_039592_4_1_4; -.
DR OMA; WGSEGDK; -.
DR OrthoDB; 872193at2; -.
DR UniPathway; UPA00094; -.
DR Proteomes; UP000002564; Chromosome.
DR GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR GO; GO:0004315; F:3-oxoacyl-[acyl-carrier-protein] synthase activity; IEA:InterPro.
DR GO; GO:0033818; F:beta-ketoacyl-acyl-carrier-protein synthase III activity; IEA:UniProtKB-UniRule.
DR GO; GO:0006633; P:fatty acid biosynthetic process; IEA:UniProtKB-UniRule.
DR Gene3D; 3.40.47.10; -; 1.
DR HAMAP; MF_01815; FabH; 1.
DR InterPro; IPR013751; ACP_syn_III.
DR InterPro; IPR013747; ACP_syn_III_C.
DR InterPro; IPR004655; FabH_synth.
DR InterPro; IPR016039; Thiolase-like.
DR Pfam; PF08545; ACP_syn_III; 1.
DR Pfam; PF08541; ACP_syn_III_C; 1.
DR SUPFAM; SSF53901; SSF53901; 1.
DR TIGRFAMs; TIGR00747; fabH; 1.
PE 3: Inferred from homology;
KW Acyltransferase; Cytoplasm; Fatty acid biosynthesis; Fatty acid metabolism;
KW Lipid biosynthesis; Lipid metabolism; Multifunctional enzyme; Transferase.
FT CHAIN 1..320
FT /note="3-oxoacyl-[acyl-carrier-protein] synthase 3"
FT /id="PRO_1000187882"
FT REGION 248..252
FT /note="ACP-binding"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01815"
FT ACT_SITE 114
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01815"
FT ACT_SITE 247
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01815"
FT ACT_SITE 277
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01815"
SQ SEQUENCE 320 AA; 34002 MW; 000E4939D5ECD119 CRC64;
MQYAKISGTG SYLPANRVSN DDLAQKVDTS DEWITARTGI KFRHIAAENE KTSDLAAEAA
RRALADAKLN INDIDLIIVA TATPDMQFPS TATIVQQKLG ITNGCPAFDV QAVCAGFMYA
LTTANAYIKS GMAKNALVIG AETFSRIVDW NDRTTCVLFG DGAGAVVLSA SDKPGIIHSK
LKADGNYLKL LNVPGQIACG KVSGSPYISM DGPGVFKFAV KMLSKIADDV IEEAGYTAEQ
IDWIVPHQAN RRIIESTAKH LGLSMDKVVL TVQDHGNTSA ASIPLALDAG IRSGQIKRGQ
NLLLEGIGGG FAWGAVLLQY
