ID B6EJ01_ALISL Unreviewed; 413 AA.
AC B6EJ01;
DT 25-NOV-2008, integrated into UniProtKB/TrEMBL.
DT 25-NOV-2008, sequence version 1.
DT 24-JAN-2024, entry version 86.
DE RecName: Full=3-oxoacyl-[acyl-carrier-protein] synthase 2 {ECO:0000256|ARBA:ARBA00014657, ECO:0000256|PIRNR:PIRNR000447};
DE EC=2.3.1.179 {ECO:0000256|ARBA:ARBA00012356, ECO:0000256|PIRNR:PIRNR000447};
GN Name=fabF {ECO:0000313|EMBL:CAQ79926.1};
GN OrderedLocusNames=VSAL_I2242 {ECO:0000313|EMBL:CAQ79926.1};
OS Aliivibrio salmonicida (strain LFI1238) (Vibrio salmonicida (strain
OS LFI1238)).
OC Bacteria; Pseudomonadota; Gammaproteobacteria; Vibrionales; Vibrionaceae;
OC Aliivibrio.
OX NCBI_TaxID=316275 {ECO:0000313|EMBL:CAQ79926.1, ECO:0000313|Proteomes:UP000001730};
RN [1] {ECO:0000313|EMBL:CAQ79926.1, ECO:0000313|Proteomes:UP000001730}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=LFI1238 {ECO:0000313|EMBL:CAQ79926.1,
RC ECO:0000313|Proteomes:UP000001730};
RX PubMed=19099551; DOI=10.1186/1471-2164-9-616;
RA Hjerde E., Lorentzen M.S., Holden M.T., Seeger K., Paulsen S., Bason N.,
RA Churcher C., Harris D., Norbertczak H., Quail M.A., Sanders S.,
RA Thurston S., Parkhill J., Willassen N.P., Thomson N.R.;
RT "The genome sequence of the fish pathogen Aliivibrio salmonicida strain
RT LFI1238 shows extensive evidence of gene decay.";
RL BMC Genomics 9:616-616(2008).
CC -!- FUNCTION: Involved in the type II fatty acid elongation cycle.
CC Catalyzes the elongation of a wide range of acyl-ACP by the addition of
CC two carbons from malonyl-ACP to an acyl acceptor. Can efficiently
CC catalyze the conversion of palmitoleoyl-ACP (cis-hexadec-9-enoyl-ACP)
CC to cis-vaccenoyl-ACP (cis-octadec-11-enoyl-ACP), an essential step in
CC the thermal regulation of fatty acid composition.
CC {ECO:0000256|PIRNR:PIRNR000447}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=(9Z)-hexadecenoyl-[ACP] + H(+) + malonyl-[ACP] = 3-oxo-(11Z)-
CC octadecenoyl-[ACP] + CO2 + holo-[ACP]; Xref=Rhea:RHEA:55040,
CC Rhea:RHEA-COMP:9623, Rhea:RHEA-COMP:9685, Rhea:RHEA-COMP:10800,
CC Rhea:RHEA-COMP:14074, ChEBI:CHEBI:15378, ChEBI:CHEBI:16526,
CC ChEBI:CHEBI:64479, ChEBI:CHEBI:78449, ChEBI:CHEBI:83989,
CC ChEBI:CHEBI:138538; EC=2.3.1.179;
CC Evidence={ECO:0000256|PIRNR:PIRNR000447};
CC -!- CATALYTIC ACTIVITY:
CC Reaction=a fatty acyl-[ACP] + H(+) + malonyl-[ACP] = a 3-oxoacyl-[ACP]
CC + CO2 + holo-[ACP]; Xref=Rhea:RHEA:22836, Rhea:RHEA-COMP:9623,
CC Rhea:RHEA-COMP:9685, Rhea:RHEA-COMP:9916, Rhea:RHEA-COMP:14125,
CC ChEBI:CHEBI:15378, ChEBI:CHEBI:16526, ChEBI:CHEBI:64479,
CC ChEBI:CHEBI:78449, ChEBI:CHEBI:78776, ChEBI:CHEBI:138651;
CC Evidence={ECO:0000256|PIRNR:PIRNR000447};
CC -!- PATHWAY: Lipid metabolism; fatty acid biosynthesis.
CC {ECO:0000256|ARBA:ARBA00005194, ECO:0000256|PIRNR:PIRNR000447}.
CC -!- SIMILARITY: Belongs to the thiolase-like superfamily. Beta-ketoacyl-ACP
CC synthases family. {ECO:0000256|ARBA:ARBA00008467,
CC ECO:0000256|PIRNR:PIRNR000447, ECO:0000256|RuleBase:RU003694}.
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DR EMBL; FM178379; CAQ79926.1; -; Genomic_DNA.
DR RefSeq; WP_012550756.1; NC_011312.1.
DR AlphaFoldDB; B6EJ01; -.
DR KEGG; vsa:VSAL_I2242; -.
DR eggNOG; COG0304; Bacteria.
DR HOGENOM; CLU_000022_69_2_6; -.
DR OMA; QIGHCLG; -.
DR UniPathway; UPA00094; -.
DR Proteomes; UP000001730; Chromosome 1.
DR GO; GO:0004315; F:3-oxoacyl-[acyl-carrier-protein] synthase activity; IEA:UniProtKB-EC.
DR GO; GO:0006633; P:fatty acid biosynthetic process; IEA:UniProtKB-UniPathway.
DR CDD; cd00834; KAS_I_II; 1.
DR Gene3D; 3.40.47.10; -; 1.
DR InterPro; IPR017568; 3-oxoacyl-ACP_synth-2.
DR InterPro; IPR000794; Beta-ketoacyl_synthase.
DR InterPro; IPR018201; Ketoacyl_synth_AS.
DR InterPro; IPR014031; Ketoacyl_synth_C.
DR InterPro; IPR014030; Ketoacyl_synth_N.
DR InterPro; IPR020841; PKS_Beta-ketoAc_synthase_dom.
DR InterPro; IPR016039; Thiolase-like.
DR NCBIfam; TIGR03150; fabF; 1.
DR PANTHER; PTHR11712:SF336; 3-OXOACYL-[ACYL-CARRIER-PROTEIN] SYNTHASE, MITOCHONDRIAL; 1.
DR PANTHER; PTHR11712; POLYKETIDE SYNTHASE-RELATED; 1.
DR Pfam; PF00109; ketoacyl-synt; 1.
DR Pfam; PF02801; Ketoacyl-synt_C; 1.
DR PIRSF; PIRSF000447; KAS_II; 1.
DR SMART; SM00825; PKS_KS; 1.
DR SUPFAM; SSF53901; Thiolase-like; 2.
DR PROSITE; PS00606; KS3_1; 1.
DR PROSITE; PS52004; KS3_2; 1.
PE 3: Inferred from homology;
KW Acyltransferase {ECO:0000256|ARBA:ARBA00023315,
KW ECO:0000256|PIRNR:PIRNR000447};
KW Fatty acid biosynthesis {ECO:0000256|ARBA:ARBA00023160,
KW ECO:0000256|PIRNR:PIRNR000447};
KW Fatty acid metabolism {ECO:0000256|ARBA:ARBA00022832};
KW Lipid biosynthesis {ECO:0000256|ARBA:ARBA00022516,
KW ECO:0000256|PIRNR:PIRNR000447};
KW Lipid metabolism {ECO:0000256|ARBA:ARBA00023098};
KW Transferase {ECO:0000256|PIRNR:PIRNR000447, ECO:0000256|RuleBase:RU003694}.
FT DOMAIN 3..412
FT /note="Ketosynthase family 3 (KS3)"
FT /evidence="ECO:0000259|PROSITE:PS52004"
FT ACT_SITE 164
FT /note="For beta-ketoacyl synthase activity"
FT /evidence="ECO:0000256|PIRSR:PIRSR000447-1"
SQ SEQUENCE 413 AA; 43192 MW; 2C49F9F5DBDEE3B6 CRC64;
MSKRRVVVTG MGMLTPVGNT VEAAWKALLA GQSGIVNIEH FDTTEFTTRF AGLVKDFNAE
EYMSKKDARK MDLFIQYGVA AGIQALDDSG FKVTEENAHR IGAAIGSGIG GLGLIEAGHK
AFTAKGPRKI SPFFVPSTIV NMISGHMSIM RGLRGPNIAI STACTTGLHN IGHAARMIAY
GDADAMLAGG AEKASTELGM GGFGAAKALS TNNENPQAAS RPWDKNRDGF VLGDGAGMMV
LEEYEHAKAR GAKIYAELVG FGMSGDAYHM TSPTPDGSGG ALAMEAAMRD ANVTGEQIGY
VNAHGTSTPA GDVAEIKGIK RALGEEGSKK VLVSSTKSMT GHLLGAAGSV EAIITVMSLI
DQIAPPTINL DDPEEGLDID LVPHTARKVE MEYAICNSFG FGGTNGTLIF KKM
//