ID M2W6Q5_GALSU Unreviewed; 482 AA.
AC M2W6Q5;
DT 01-MAY-2013, integrated into UniProtKB/TrEMBL.
DT 01-MAY-2013, sequence version 1.
DT 27-MAR-2024, entry version 44.
DE RecName: Full=beta-ketoacyl-[acyl-carrier-protein] synthase I {ECO:0000256|ARBA:ARBA00013191};
DE EC=2.3.1.41 {ECO:0000256|ARBA:ARBA00013191};
DE AltName: Full=Beta-ketoacyl-ACP synthase {ECO:0000256|ARBA:ARBA00044350};
GN ORFNames=Gasu_14230 {ECO:0000313|EMBL:EME31466.1};
OS Galdieria sulphuraria (Red alga).
OC Eukaryota; Rhodophyta; Bangiophyceae; Galdieriales; Galdieriaceae;
OC Galdieria.
OX NCBI_TaxID=130081 {ECO:0000313|EMBL:EME31466.1, ECO:0000313|Proteomes:UP000030680};
RN [1] {ECO:0000313|Proteomes:UP000030680}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=074W {ECO:0000313|Proteomes:UP000030680};
RX PubMed=23471408; DOI=10.1126/science.1231707;
RA Schonknecht G., Chen W.H., Ternes C.M., Barbier G.G., Shrestha R.P.,
RA Stanke M., Brautigam A., Baker B.J., Banfield J.F., Garavito R.M., Carr K.,
RA Wilkerson C., Rensing S.A., Gagneul D., Dickenson N.E., Oesterhelt C.,
RA Lercher M.J., Weber A.P.;
RT "Gene transfer from bacteria and archaea facilitated evolution of an
RT extremophilic eukaryote.";
RL Science 339:1207-1210(2013).
CC -!- CATALYTIC ACTIVITY:
CC Reaction=H(+) + hexanoyl-[ACP] + malonyl-[ACP] = 3-oxooctanoyl-[ACP] +
CC CO2 + holo-[ACP]; Xref=Rhea:RHEA:41836, Rhea:RHEA-COMP:9623,
CC Rhea:RHEA-COMP:9632, Rhea:RHEA-COMP:9633, Rhea:RHEA-COMP:9685,
CC ChEBI:CHEBI:15378, ChEBI:CHEBI:16526, ChEBI:CHEBI:64479,
CC ChEBI:CHEBI:78449, ChEBI:CHEBI:78459, ChEBI:CHEBI:78460;
CC Evidence={ECO:0000256|ARBA:ARBA00023361};
CC PhysiologicalDirection=left-to-right; Xref=Rhea:RHEA:41837;
CC Evidence={ECO:0000256|ARBA:ARBA00023361};
CC -!- CATALYTIC ACTIVITY:
CC Reaction=H(+) + malonyl-[ACP] + octanoyl-[ACP] = 3-oxodecanoyl-[ACP] +
CC CO2 + holo-[ACP]; Xref=Rhea:RHEA:41852, Rhea:RHEA-COMP:9623,
CC Rhea:RHEA-COMP:9636, Rhea:RHEA-COMP:9637, Rhea:RHEA-COMP:9685,
CC ChEBI:CHEBI:15378, ChEBI:CHEBI:16526, ChEBI:CHEBI:64479,
CC ChEBI:CHEBI:78449, ChEBI:CHEBI:78463, ChEBI:CHEBI:78464;
CC Evidence={ECO:0000256|ARBA:ARBA00023414};
CC PhysiologicalDirection=left-to-right; Xref=Rhea:RHEA:41853;
CC Evidence={ECO:0000256|ARBA:ARBA00023414};
CC -!- CATALYTIC ACTIVITY:
CC Reaction=H(+) + malonyl-[ACP] + tetradecanoyl-[ACP] = 3-
CC oxohexadecanoyl-[ACP] + CO2 + holo-[ACP]; Xref=Rhea:RHEA:41900,
CC Rhea:RHEA-COMP:9623, Rhea:RHEA-COMP:9648, Rhea:RHEA-COMP:9649,
CC Rhea:RHEA-COMP:9685, ChEBI:CHEBI:15378, ChEBI:CHEBI:16526,
CC ChEBI:CHEBI:64479, ChEBI:CHEBI:78449, ChEBI:CHEBI:78477,
CC ChEBI:CHEBI:78478; Evidence={ECO:0000256|ARBA:ARBA00023341};
CC PhysiologicalDirection=left-to-right; Xref=Rhea:RHEA:41901;
CC Evidence={ECO:0000256|ARBA:ARBA00023341};
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 EC=2.3.1.41; Evidence={ECO:0000256|ARBA:ARBA00023389};
CC PhysiologicalDirection=left-to-right; Xref=Rhea:RHEA:22837;
CC Evidence={ECO:0000256|ARBA:ARBA00023389};
CC -!- CATALYTIC ACTIVITY:
CC Reaction=butanoyl-[ACP] + H(+) + malonyl-[ACP] = 3-oxohexanoyl-[ACP] +
CC CO2 + holo-[ACP]; Xref=Rhea:RHEA:41820, Rhea:RHEA-COMP:9623,
CC Rhea:RHEA-COMP:9628, Rhea:RHEA-COMP:9629, Rhea:RHEA-COMP:9685,
CC ChEBI:CHEBI:15378, ChEBI:CHEBI:16526, ChEBI:CHEBI:64479,
CC ChEBI:CHEBI:78449, ChEBI:CHEBI:78454, ChEBI:CHEBI:78456;
CC Evidence={ECO:0000256|ARBA:ARBA00023403};
CC PhysiologicalDirection=left-to-right; Xref=Rhea:RHEA:41821;
CC Evidence={ECO:0000256|ARBA:ARBA00023403};
CC -!- CATALYTIC ACTIVITY:
CC Reaction=decanoyl-[ACP] + H(+) + malonyl-[ACP] = 3-oxododecanoyl-[ACP]
CC + CO2 + holo-[ACP]; Xref=Rhea:RHEA:41868, Rhea:RHEA-COMP:9623,
CC Rhea:RHEA-COMP:9640, Rhea:RHEA-COMP:9641, Rhea:RHEA-COMP:9685,
CC ChEBI:CHEBI:15378, ChEBI:CHEBI:16526, ChEBI:CHEBI:64479,
CC ChEBI:CHEBI:78449, ChEBI:CHEBI:78468, ChEBI:CHEBI:78469;
CC Evidence={ECO:0000256|ARBA:ARBA00023396};
CC PhysiologicalDirection=left-to-right; Xref=Rhea:RHEA:41869;
CC Evidence={ECO:0000256|ARBA:ARBA00023396};
CC -!- CATALYTIC ACTIVITY:
CC Reaction=dodecanoyl-[ACP] + H(+) + malonyl-[ACP] = 3-oxotetradecanoyl-
CC [ACP] + CO2 + holo-[ACP]; Xref=Rhea:RHEA:41884, Rhea:RHEA-COMP:9623,
CC Rhea:RHEA-COMP:9644, Rhea:RHEA-COMP:9645, Rhea:RHEA-COMP:9685,
CC ChEBI:CHEBI:15378, ChEBI:CHEBI:16526, ChEBI:CHEBI:64479,
CC ChEBI:CHEBI:65264, ChEBI:CHEBI:78449, ChEBI:CHEBI:78473;
CC Evidence={ECO:0000256|ARBA:ARBA00023348};
CC PhysiologicalDirection=left-to-right; Xref=Rhea:RHEA:41885;
CC Evidence={ECO:0000256|ARBA:ARBA00023348};
CC -!- PATHWAY: Lipid metabolism; fatty acid biosynthesis.
CC {ECO:0000256|ARBA:ARBA00005194}.
CC -!- SIMILARITY: Belongs to the thiolase-like superfamily. Beta-ketoacyl-ACP
CC synthases family. {ECO:0000256|ARBA:ARBA00008467,
CC ECO:0000256|RuleBase:RU003694}.
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DR EMBL; KB454492; EME31466.1; -; Genomic_DNA.
DR RefSeq; XP_005707986.1; XM_005707929.1.
DR AlphaFoldDB; M2W6Q5; -.
DR STRING; 130081.M2W6Q5; -.
DR EnsemblPlants; EME31466; EME31466; Gasu_14230.
DR GeneID; 17090107; -.
DR Gramene; EME31466; EME31466; Gasu_14230.
DR KEGG; gsl:Gasu_14230; -.
DR eggNOG; KOG1394; Eukaryota.
DR OMA; PDPNSAC; -.
DR OrthoDB; 546841at2759; -.
DR Proteomes; UP000030680; Unassembled WGS sequence.
DR GO; GO:0004315; F:3-oxoacyl-[acyl-carrier-protein] synthase activity; IEA:UniProtKB-EC.
DR GO; GO:0010020; P:chloroplast fission; IEA:EnsemblPlants.
DR GO; GO:0006633; P:fatty acid biosynthetic process; IEA:UniProtKB-KW.
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 InterPro; IPR020615; Thiolase_acyl_enz_int_AS.
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 SMART; SM00825; PKS_KS; 1.
DR SUPFAM; SSF53901; Thiolase-like; 2.
DR PROSITE; PS00606; KS3_1; 1.
DR PROSITE; PS52004; KS3_2; 1.
DR PROSITE; PS00098; THIOLASE_1; 1.
PE 3: Inferred from homology;
KW Acyltransferase {ECO:0000256|ARBA:ARBA00023315,
KW ECO:0000313|EMBL:EME31466.1};
KW Fatty acid biosynthesis {ECO:0000256|ARBA:ARBA00023160};
KW Fatty acid metabolism {ECO:0000256|ARBA:ARBA00022832};
KW Lipid biosynthesis {ECO:0000256|ARBA:ARBA00022516};
KW Lipid metabolism {ECO:0000256|ARBA:ARBA00023098};
KW Reference proteome {ECO:0000313|Proteomes:UP000030680};
KW Transferase {ECO:0000256|RuleBase:RU003694, ECO:0000313|EMBL:EME31466.1}.
FT DOMAIN 64..479
FT /note="Ketosynthase family 3 (KS3)"
FT /evidence="ECO:0000259|PROSITE:PS52004"
SQ SEQUENCE 482 AA; 52219 MW; 2DB13BE606F828E7 CRC64;
MIDSSCTWKT NYLAAFQIQV TFSKQSRTLQ RKYGLRIGNL RCRKNFAGLK MQTYYRDNGK
DGPRKRVVVT GMGVVSCFGT DVDLFYDNLL AGKSGIKRIE KFPVDEYSTK IGGEITPENF
QANKYLSPKL ARRMDPVICY SVAASKLALD HAGVAIGSES FSKLRKERCG VIIGSGMGGL
ISFTDGVGKL LADEFDRISP FFIPNSICNL GSAMVAIETG FMGPNYSISS ACATSNHAIN
NAAMHIQRGE AEMIVTGGSE AALTPIGLTG FIACRALSKR NEDPTKACRP WDTERDGFVM
GEGCGVLVLE SLEHALRREA PILCEYLGGA HTCDAYHITE PHPEGHGVIK CMELAVQDSG
INIADVDYIN AHATSTPLGD IAEFRAIRSI FKDYKDRVKL NSTKSLIGHG LGAAGALEAI
ATVKAIQTGK LHPTLNVEKL DPEVDMDVVP NVAKEHRVRV AMSNSFGFGG HNSVVVFGAY
DQ
//
