FABH_PARP8
ID FABH_PARP8 Reviewed; 329 AA.
AC B2JFI9;
DT 28-JUL-2009, integrated into UniProtKB/Swiss-Prot.
DT 10-JUN-2008, sequence version 1.
DT 25-MAY-2022, entry version 71.
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=Bphy_0828;
OS Paraburkholderia phymatum (strain DSM 17167 / CIP 108236 / LMG 21445 /
OS STM815) (Burkholderia phymatum).
OC Bacteria; Proteobacteria; Betaproteobacteria; Burkholderiales;
OC Burkholderiaceae; Paraburkholderia.
OX NCBI_TaxID=391038;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=DSM 17167 / CIP 108236 / LMG 21445 / STM815;
RX PubMed=25197461; DOI=10.4056/sigs.4861021;
RA Moulin L., Klonowska A., Caroline B., Booth K., Vriezen J.A., Melkonian R.,
RA James E.K., Young J.P., Bena G., Hauser L., Land M., Kyrpides N., Bruce D.,
RA Chain P., Copeland A., Pitluck S., Woyke T., Lizotte-Waniewski M.,
RA Bristow J., Riley M.;
RT "Complete genome sequence of Burkholderia phymatum STM815(T), a broad host
RT range and efficient nitrogen-fixing symbiont of Mimosa species.";
RL Stand. Genomic Sci. 9:763-774(2014).
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; CP001043; ACC70017.1; -; Genomic_DNA.
DR RefSeq; WP_012400237.1; NZ_CADFGH010000007.1.
DR AlphaFoldDB; B2JFI9; -.
DR SMR; B2JFI9; -.
DR STRING; 391038.Bphy_0828; -.
DR EnsemblBacteria; ACC70017; ACC70017; Bphy_0828.
DR KEGG; bph:Bphy_0828; -.
DR eggNOG; COG0332; Bacteria.
DR HOGENOM; CLU_039592_3_1_4; -.
DR OMA; WGSEGDK; -.
DR OrthoDB; 872193at2; -.
DR UniPathway; UPA00094; -.
DR Proteomes; UP000001192; Chromosome 1.
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; -; 2.
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;
KW Reference proteome; Transferase.
FT CHAIN 1..329
FT /note="3-oxoacyl-[acyl-carrier-protein] synthase 3"
FT /id="PRO_1000187854"
FT REGION 257..261
FT /note="ACP-binding"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01815"
FT ACT_SITE 123
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01815"
FT ACT_SITE 256
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01815"
FT ACT_SITE 286
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01815"
SQ SEQUENCE 329 AA; 34905 MW; EAF271C5D81885F8 CRC64;
MAQSTTYSRV LGTGSYLPPN RVSNQDLAAR LAKQGIETSD EWIVARTGIH ARHFAEPDVT
TSDLALIASQ RAIEAADVDP QAIDLIIVAT STPDFVFPST ACLLQNKLGI KNNGAAFDVQ
AVCSGFAYAV ATADSFIRSG QHRTALVVGA ETFSRILDFN DRTTCVLFGD GAGAVVLQAS
DEPGVLASAL HADGSHSNIL CTPGNVNGGI VQGSAFLHMD GQAVFKLAVN VLEKVAVEAL
QKADLQPEQI DWLIPHQANI RIMQSTCRKL GLPQERMVVT VHEHGNTSAA SIPLALDVAV
RDGRIQRGHN VLIEGVGGGF TWGASVIRY
