FABH_CROS8
ID FABH_CROS8 Reviewed; 317 AA.
AC A7MFQ4;
DT 15-JAN-2008, integrated into UniProtKB/Swiss-Prot.
DT 02-OCT-2007, sequence version 1.
DT 03-AUG-2022, entry version 76.
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=ESA_02254;
OS Cronobacter sakazakii (strain ATCC BAA-894) (Enterobacter sakazakii).
OC Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC Enterobacteriaceae; Cronobacter.
OX NCBI_TaxID=290339;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC BAA-894;
RX PubMed=20221447; DOI=10.1371/journal.pone.0009556;
RA Kucerova E., Clifton S.W., Xia X.Q., Long F., Porwollik S., Fulton L.,
RA Fronick C., Minx P., Kyung K., Warren W., Fulton R., Feng D., Wollam A.,
RA Shah N., Bhonagiri V., Nash W.E., Hallsworth-Pepin K., Wilson R.K.,
RA McClelland M., Forsythe S.J.;
RT "Genome sequence of Cronobacter sakazakii BAA-894 and comparative genomic
RT hybridization analysis with other Cronobacter species.";
RL PLoS ONE 5:E9556-E9556(2010).
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; CP000783; ABU77503.1; -; Genomic_DNA.
DR RefSeq; WP_012125080.1; NC_009778.1.
DR AlphaFoldDB; A7MFQ4; -.
DR SMR; A7MFQ4; -.
DR EnsemblBacteria; ABU77503; ABU77503; ESA_02254.
DR KEGG; esa:ESA_02254; -.
DR PATRIC; fig|290339.8.peg.2014; -.
DR HOGENOM; CLU_039592_4_1_6; -.
DR OMA; WGSEGDK; -.
DR OrthoDB; 872193at2; -.
DR UniPathway; UPA00094; -.
DR Proteomes; UP000000260; 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..317
FT /note="3-oxoacyl-[acyl-carrier-protein] synthase 3"
FT /id="PRO_1000056361"
FT REGION 245..249
FT /note="ACP-binding"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01815"
FT ACT_SITE 112
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01815"
FT ACT_SITE 244
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01815"
FT ACT_SITE 274
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01815"
SQ SEQUENCE 317 AA; 33539 MW; C005F77BFCA15914 CRC64;
MYTKIIGTGS YLPEHVRTNA DLEKMVETSD EWIVTRTGIR ERRIAAPGET VATMGYEAAL
RAIDMAGIDK GQIGLIIVAT TSATHAFPSA ACQVQGMLGI KGCPAFDVAA ACAGFTYALS
IADQYVKSGA VNNALVIGSD VLARTLDPED RGTIILFGDG AGAVVLGASE EPGILSTHLH
ADGSYGELLT LPNQDRVNPD SPTFLTMAGN EVFKVAVTEL AHIVDETLEA NKLDRADLDW
LVPHQANLRI ISATAKKLGM SMDNVVVTLD RHGNTSAASV PCALDEAVRD GRIQRGQLVL
LEAFGGGFTW GSALVRF
