ID E7GII9_CLOSY Unreviewed; 320 AA.
AC E7GII9;
DT 05-APR-2011, integrated into UniProtKB/TrEMBL.
DT 05-APR-2011, sequence version 1.
DT 27-MAR-2024, entry version 60.
DE RecName: Full=Beta-ketoacyl-[acyl-carrier-protein] synthase III {ECO:0000256|ARBA:ARBA00012333, ECO:0000256|HAMAP-Rule:MF_01815};
DE Short=Beta-ketoacyl-ACP synthase III {ECO:0000256|HAMAP-Rule:MF_01815};
DE Short=KAS III {ECO:0000256|HAMAP-Rule:MF_01815};
DE EC=2.3.1.180 {ECO:0000256|ARBA:ARBA00012333, ECO:0000256|HAMAP-Rule:MF_01815};
DE AltName: Full=3-oxoacyl-[acyl-carrier-protein] synthase 3 {ECO:0000256|HAMAP-Rule:MF_01815};
DE AltName: Full=3-oxoacyl-[acyl-carrier-protein] synthase III {ECO:0000256|HAMAP-Rule:MF_01815};
GN Name=fabH {ECO:0000256|HAMAP-Rule:MF_01815};
GN ORFNames=HMPREF9474_00732 {ECO:0000313|EMBL:EGA95467.1};
OS [Clostridium] symbiosum WAL-14163.
OC Bacteria; Bacillota; Clostridia; Eubacteriales; Lachnospiraceae.
OX NCBI_TaxID=742740 {ECO:0000313|EMBL:EGA95467.1, ECO:0000313|Proteomes:UP000002970};
RN [1] {ECO:0000313|EMBL:EGA95467.1, ECO:0000313|Proteomes:UP000002970}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=WAL-14163 {ECO:0000313|EMBL:EGA95467.1,
RC ECO:0000313|Proteomes:UP000002970};
RA Earl A., Ward D., Feldgarden M., Gevers D., Finegold S.M., Summanen P.H.,
RA Molitoris D.R., Vaisanen M.L., Daigneault M., Young S.K., Zeng Q.,
RA Gargeya S., Fitzgerald M., Haas B., Abouelleil A., Alvarado L.,
RA Arachchi H.M., Berlin A., Brown A., Chapman S.B., Chen Z., Dunbar C.,
RA Freedman E., Gearin G., Gellesch M., Goldberg J., Griggs A., Gujja S.,
RA Heilman E., Heiman D., Howarth C., Larson L., Lui A., MacDonald P.J.P.,
RA Mehta T., Montmayeur A., Murphy C., Neiman D., Pearson M., Priest M.,
RA Roberts A., Saif S., Shea T., Shenoy N., Sisk P., Stolte C., Sykes S.,
RA White J., Yandava C., Nusbaum C., Birren B.;
RT "The Genome Sequence of Clostridium symbiosum strain WAL-14163.";
RL Submitted (DEC-2010) to the EMBL/GenBank/DDBJ databases.
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:0000256|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:0000256|ARBA:ARBA00043707};
CC PhysiologicalDirection=left-to-right; Xref=Rhea:RHEA:12081;
CC Evidence={ECO:0000256|ARBA:ARBA00043707};
CC -!- PATHWAY: Lipid metabolism; fatty acid biosynthesis.
CC {ECO:0000256|ARBA:ARBA00005194, ECO:0000256|HAMAP-Rule:MF_01815}.
CC -!- SUBUNIT: Homodimer. {ECO:0000256|HAMAP-Rule:MF_01815}.
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000256|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:0000256|HAMAP-
CC Rule:MF_01815}.
CC -!- SIMILARITY: Belongs to the thiolase-like superfamily. FabH family.
CC {ECO:0000256|ARBA:ARBA00008642, ECO:0000256|HAMAP-Rule:MF_01815}.
CC -!- CAUTION: The sequence shown here is derived from an EMBL/GenBank/DDBJ
CC whole genome shotgun (WGS) entry which is preliminary data.
CC {ECO:0000313|EMBL:EGA95467.1}.
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DR EMBL; ADLQ01000017; EGA95467.1; -; Genomic_DNA.
DR RefSeq; WP_003498436.1; NZ_GL834305.1.
DR AlphaFoldDB; E7GII9; -.
DR STRING; 1512.GCA_900049235_00806; -.
DR GeneID; 57968383; -.
DR eggNOG; COG0332; Bacteria.
DR HOGENOM; CLU_039592_3_1_9; -.
DR UniPathway; UPA00094; -.
DR Proteomes; UP000002970; Unassembled WGS sequence.
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 CDD; cd00830; KAS_III; 1.
DR Gene3D; 3.40.47.10; -; 1.
DR HAMAP; MF_01815; FabH; 1.
DR InterPro; IPR013747; ACP_syn_III_C.
DR InterPro; IPR013751; ACP_syn_III_N.
DR InterPro; IPR004655; FabH.
DR InterPro; IPR016039; Thiolase-like.
DR NCBIfam; TIGR00747; fabH; 1.
DR PANTHER; PTHR43091; 3-OXOACYL-[ACYL-CARRIER-PROTEIN] SYNTHASE; 1.
DR PANTHER; PTHR43091:SF1; 3-OXOACYL-[ACYL-CARRIER-PROTEIN] SYNTHASE III, CHLOROPLASTIC; 1.
DR Pfam; PF08545; ACP_syn_III; 1.
DR Pfam; PF08541; ACP_syn_III_C; 1.
DR SUPFAM; SSF53901; Thiolase-like; 1.
PE 3: Inferred from homology;
KW Acyltransferase {ECO:0000256|ARBA:ARBA00023315, ECO:0000256|HAMAP-
KW Rule:MF_01815}; Cytoplasm {ECO:0000256|HAMAP-Rule:MF_01815};
KW Fatty acid biosynthesis {ECO:0000256|ARBA:ARBA00023160, ECO:0000256|HAMAP-
KW Rule:MF_01815};
KW Fatty acid metabolism {ECO:0000256|ARBA:ARBA00022832, ECO:0000256|HAMAP-
KW Rule:MF_01815};
KW Lipid biosynthesis {ECO:0000256|ARBA:ARBA00022516, ECO:0000256|HAMAP-
KW Rule:MF_01815};
KW Lipid metabolism {ECO:0000256|ARBA:ARBA00023098, ECO:0000256|HAMAP-
KW Rule:MF_01815}; Multifunctional enzyme {ECO:0000256|HAMAP-Rule:MF_01815};
KW Reference proteome {ECO:0000313|Proteomes:UP000002970};
KW Transferase {ECO:0000256|ARBA:ARBA00022679, ECO:0000256|HAMAP-
KW Rule:MF_01815}.
FT DOMAIN 105..181
FT /note="Beta-ketoacyl-[acyl-carrier-protein] synthase III N-
FT terminal"
FT /evidence="ECO:0000259|Pfam:PF08545"
FT DOMAIN 231..320
FT /note="Beta-ketoacyl-[acyl-carrier-protein] synthase III C-
FT terminal"
FT /evidence="ECO:0000259|Pfam:PF08541"
FT REGION 248..252
FT /note="ACP-binding"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01815"
FT ACT_SITE 111
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01815"
FT ACT_SITE 247
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01815"
FT ACT_SITE 277
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01815"
SQ SEQUENCE 320 AA; 34782 MW; 66EBA4BEE86AB199 CRC64;
MTSRIIGIGS YLPENIVTNT DLTEFIDTSD EWIRERSGIC ARRISTEEGT SALAVKAAKR
AIEDAGIAPE EIEIIVLATS SPDRAFPSAA TDVQAAVGAL NAVAFDITAA CSGFIYGMHI
VQGFIKSGIY KTGLVIGAET LGKVLDWTDR GTCFLFGDGA GAAVVRADER GLIDTLVGSD
GRKGWVLDCQ ARSLGNCLTK TKPELGFMQM DGQEVFKFAV RKVPEITKKI MEDNGVSQED
IRYFVLHQAN YRILEAVSRR LNIPMEKIPV NLDQYGNTSA ASIPVLLDEM HRDGRLERGD
RIVLSGFGAG LTWGAMLLEW
//
