ID A0A099D1S5_9ACTN Unreviewed; 415 AA.
AC A0A099D1S5;
DT 07-JAN-2015, integrated into UniProtKB/TrEMBL.
DT 07-JAN-2015, sequence version 1.
DT 27-MAR-2024, entry version 44.
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 ORFNames=CDG81_06440 {ECO:0000313|EMBL:ASU78007.1}, IL38_21475
GN {ECO:0000313|EMBL:KGI79772.1};
OS Actinopolyspora erythraea.
OC Bacteria; Actinomycetota; Actinomycetes; Actinopolysporales;
OC Actinopolysporaceae; Actinopolyspora.
OX NCBI_TaxID=414996 {ECO:0000313|EMBL:ASU78007.1, ECO:0000313|Proteomes:UP000215043};
RN [1] {ECO:0000313|EMBL:KGI79772.1, ECO:0000313|Proteomes:UP000029737}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=YIM90600 {ECO:0000313|EMBL:KGI79772.1,
RC ECO:0000313|Proteomes:UP000029737};
RX PubMed=25250723;
RA Chen D., Feng J., Huang L., Zhang Q., Wu J., Zhu X., Duan Y., Xu Z.;
RT "Identification and Characterization of a New Erythromycin Biosynthetic
RT Gene Cluster in Actinopolyspora erythraea YIM90600, a Novel Erythronolide-
RT Producing Halophilic Actinomycete Isolated from Salt Field.";
RL PLoS ONE 9:E108129-E108129(2014).
RN [2] {ECO:0000313|EMBL:ASU78007.1, ECO:0000313|Proteomes:UP000215043}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=YIM 90600 {ECO:0000313|EMBL:ASU78007.1,
RC ECO:0000313|Proteomes:UP000215043};
RA Yin M., Tang S.;
RT "The complete genome sequence of moderately halophilic actinomycete
RT Actinopolyspora erythraea YIM 90600, the producer of novel erythromycin,
RT novel actinopolysporins A-C and tubercidin.";
RL Submitted (AUG-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: 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; CP022752; ASU78007.1; -; Genomic_DNA.
DR EMBL; JPMV01000039; KGI79772.1; -; Genomic_DNA.
DR RefSeq; WP_043577421.1; NZ_KN214179.1.
DR AlphaFoldDB; A0A099D1S5; -.
DR KEGG; aey:CDG81_06440; -.
DR eggNOG; COG0304; Bacteria.
DR HOGENOM; CLU_000022_69_2_11; -.
DR OrthoDB; 9808669at2; -.
DR UniPathway; UPA00094; -.
DR Proteomes; UP000029737; Unassembled WGS sequence.
DR Proteomes; UP000215043; Chromosome.
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; -; 2.
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 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 Transferase {ECO:0000256|PIRNR:PIRNR000447, ECO:0000256|RuleBase:RU003694}.
FT DOMAIN 3..414
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 415 AA; 42593 MW; 1D53225C6443F038 CRC64;
MTTKDVVITG MGATTPLGGD VASTWDGLLN GASGSRTIDA DWVDTYELPS RIAAPLAVEP
SEVLPRVRLR RMDRCEQIAL IAAHQAWNDA GFELPSEEEQ SVDPDRLGVS IGTGIGGPTT
LLDQHDTLKS QGLRKVSPLT VPMLMPNGPA AHVSLELKAR AGVHSPAAAC ASGAEGLATG
MDMIRSGRAD VVIAGGAEAC IHPITVAGFA QSRTLSTRND EPERASRPFD VDRDGFVMGE
GAGVVVLESA EYAAARGARV YGRLAGAGIT ADAYHITGFH PDGLGQINAI NAAIGTAGLS
TKDIGHVNAH ATSTVVGDVG EAAAIRKALG DDVVLTAPKG ALGHLVGGAG AVESIVTVLS
LYHGVVPPTC NLENPDPKVE LEVVGGEPRE MSSTAAVNDA FGFGGHNVAL AFTRD
//
