ID A0A0K8MAM3_9PROT Unreviewed; 421 AA.
AC A0A0K8MAM3;
DT 11-NOV-2015, integrated into UniProtKB/TrEMBL.
DT 11-NOV-2015, sequence version 1.
DT 13-SEP-2023, entry version 35.
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:GAO97546.1};
GN ORFNames=Cva_00182 {ECO:0000313|EMBL:GAO97546.1};
OS Caedimonas varicaedens.
OC Bacteria; Pseudomonadota; Alphaproteobacteria; Holosporales;
OC Caedimonadaceae; Caedimonas.
OX NCBI_TaxID=1629334 {ECO:0000313|EMBL:GAO97546.1, ECO:0000313|Proteomes:UP000036771};
RN [1] {ECO:0000313|EMBL:GAO97546.1, ECO:0000313|Proteomes:UP000036771}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RA Suzuki H., Dapper A.L., Gibson A.K., Jackson C., Lee H., Pejaver V.R.,
RA Doak T., Lynch M.;
RT "Caedibacter varicaedens, whole genome shotgun sequence.";
RL Submitted (MAR-2015) to the EMBL/GenBank/DDBJ databases.
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}.
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:GAO97546.1}.
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DR EMBL; BBVC01000008; GAO97546.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A0K8MAM3; -.
DR STRING; 1629334.Cva_00182; -.
DR OrthoDB; 9808669at2; -.
DR UniPathway; UPA00094; -.
DR Proteomes; UP000036771; Unassembled WGS sequence.
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; 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; 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 Reference proteome {ECO:0000313|Proteomes:UP000036771};
KW Transferase {ECO:0000256|PIRNR:PIRNR000447, ECO:0000256|RuleBase:RU003694}.
FT DOMAIN 1..419
FT /note="Ketosynthase family 3 (KS3)"
FT /evidence="ECO:0000259|PROSITE:PS52004"
FT ACT_SITE 170
FT /note="For beta-ketoacyl synthase activity"
FT /evidence="ECO:0000256|PIRSR:PIRSR000447-1"
SQ SEQUENCE 421 AA; 44431 MW; 6A4690C92F05458F CRC64;
MRRVVVTGLG LVTPLGGNTQ TTWDNLIAGK SGVRKIERFD VSDLPAKIAG LIPVGDSSQG
CYNPDDWLDP KEQRKVDTFI AYGVAAACQA FQDSGWEAKS DEDQFRAGVM IGSGIGGLQK
IYEASIALEK GGPKRVSPFF IPSALINEIS GNVSIKFGLK GPNHANVTAC STGAHAIGDA
ARLIQIGDAD VMAAGGAESA VTRLGIAGFA SMKALSTEYN ETPEKASRPW DRDRDGFVMG
EGAGVVILEE LEHAKKRGAR IYAEVIGYGL SGDAYHIAAP APDGSGVLRC MQNTLNRAEI
NADQIDYINA HATSTPAGDE LELMAIQRLM GARARDISVS STKSSIGHLL GAAGGVEAIF
AILSIRYKII PPTLNLDNPS DSAREMDLVP HTAKEKKVKI ALSNSFGFGG TNASLAFREL
A
//