ID A4FH77_SACEN Unreviewed; 413 AA.
AC A4FH77;
DT 17-APR-2007, integrated into UniProtKB/TrEMBL.
DT 17-APR-2007, sequence version 1.
DT 27-MAR-2024, entry version 100.
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 OrderedLocusNames=SACE_4133 {ECO:0000313|EMBL:CAM03402.1};
GN ORFNames=A8924_4521 {ECO:0000313|EMBL:PFG97102.1};
OS Saccharopolyspora erythraea (strain ATCC 11635 / DSM 40517 / JCM 4748 /
OS NBRC 13426 / NCIMB 8594 / NRRL 2338).
OC Bacteria; Actinomycetota; Actinomycetes; Pseudonocardiales;
OC Pseudonocardiaceae; Saccharopolyspora.
OX NCBI_TaxID=405948 {ECO:0000313|EMBL:CAM03402.1, ECO:0000313|Proteomes:UP000006728};
RN [1] {ECO:0000313|EMBL:CAM03402.1, ECO:0000313|Proteomes:UP000006728}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 11635 / DSM 40517 / JCM 4748 / NBRC 13426 / NCIMB 8594 /
RC NRRL 2338 {ECO:0000313|Proteomes:UP000006728}, and NRRL 2338
RC {ECO:0000313|EMBL:CAM03402.1};
RX PubMed=17369815; DOI=10.1038/nbt1297;
RA Oliynyk M., Samborskyy M., Lester J.B., Mironenko T., Scott N., Dickens S.,
RA Haydock S.F., Leadlay P.F.;
RT "Complete genome sequence of the erythromycin-producing bacterium
RT Saccharopolyspora erythraea NRRL23338.";
RL Nat. Biotechnol. 25:447-453(2007).
RN [2] {ECO:0000313|EMBL:PFG97102.1, ECO:0000313|Proteomes:UP000225825}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=DSM 40517 {ECO:0000313|EMBL:PFG97102.1,
RC ECO:0000313|Proteomes:UP000225825};
RA Klenk H.-P.;
RT "Sequencing the genomes of 1000 actinobacteria strains.";
RL Submitted (SEP-2017) 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: Antibiotic biosynthesis. {ECO:0000256|ARBA:ARBA00004792}.
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; AM420293; CAM03402.1; -; Genomic_DNA.
DR EMBL; PDBV01000001; PFG97102.1; -; Genomic_DNA.
DR AlphaFoldDB; A4FH77; -.
DR STRING; 405948.SACE_4133; -.
DR KEGG; sen:SACE_4133; -.
DR eggNOG; COG0304; Bacteria.
DR HOGENOM; CLU_000022_69_2_11; -.
DR OrthoDB; 9808669at2; -.
DR UniPathway; UPA00094; -.
DR Proteomes; UP000006728; Chromosome.
DR Proteomes; UP000225825; Unassembled WGS sequence.
DR GO; GO:0004315; F:3-oxoacyl-[acyl-carrier-protein] synthase activity; IEA:UniProtKB-EC.
DR GO; GO:0017000; P:antibiotic biosynthetic process; IEA:UniProtKB-KW.
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; -; 2.
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 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 Antibiotic biosynthesis {ECO:0000256|ARBA:ARBA00023194};
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:UP000006728};
KW Transferase {ECO:0000256|PIRNR:PIRNR000447, ECO:0000256|RuleBase:RU003694}.
FT DOMAIN 4..411
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; 42380 MW; 15E1763C35706BB9 CRC64;
MTGLHEVVVT GMGVVSPLGV GTEQFHANQQ LGRSAVRRVT AYDPGDDPVR IAAEVDLPEQ
FQFTRRDQLR TDRCTQLAIV AARLGVEEAK LDLAASDTSR IGVVIGSGMG GVGTWERNCL
ALHESGVRAM RTKTVPMSMI NDPSASIAIR YGTTGPCTTV TTACASGADA LVAAAQMIRL
GEADVVLAGG AEAPLSRSVL AGFARLGALS EDNDAPESAC RPFSADRTGF VMGEGAAVLV
LESAEHATAR GAQVRARMAG YGRSADAYHV TMPHPEAAGA RAAIVAALRD AGAQPSDVDF
VNAHGTGTAL NDHAEALAMR AVFGTGVERI PVTATKSLTG HSLGAAGAVE AVATVQAVSS
GVIPPTANLR VPDPELGIDV VHGGPREARI NLALSNSFAF GGHNVVLAFA PPL
//
