ID   CHSC_IPOPU              Reviewed;         352 AA.
AC   P48399;
DT   01-FEB-1996, integrated into UniProtKB/Swiss-Prot.
DT   01-FEB-1996, sequence version 1.
DT   25-MAY-2022, entry version 86.
DE   RecName: Full=Chalcone synthase C;
DE            EC=2.3.1.74;
DE   AltName: Full=Naringenin-chalcone synthase C;
DE            Short=CHS-C;
DE   Flags: Fragment;
GN   Name=CHSC;
OS   Ipomoea purpurea (Common morning glory) (Pharbitis purpurea).
OC   Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC   Spermatophyta; Magnoliopsida; eudicotyledons; Gunneridae; Pentapetalae;
OC   asterids; lamiids; Solanales; Convolvulaceae; Ipomoeeae; Ipomoea.
OX   NCBI_TaxID=4121;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RX   PubMed=7724563; DOI=10.1073/pnas.92.8.3338;
RA   Durbin M.L., Learn G.H., Huttley G.A., Clegg M.T.;
RT   "Evolution of the chalcone synthase gene family in the genus Ipomoea.";
RL   Proc. Natl. Acad. Sci. U.S.A. 92:3338-3342(1995).
CC   -!- FUNCTION: The primary product of this enzyme is 4,2',4',6'-
CC       tetrahydroxychalcone (also termed naringenin-chalcone or chalcone)
CC       which can under specific conditions spontaneously isomerize into
CC       naringenin.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=4-coumaroyl-CoA + 2 H(+) + 3 malonyl-CoA = 2',4,4',6'-
CC         tetrahydroxychalcone + 3 CO2 + 4 CoA; Xref=Rhea:RHEA:11128,
CC         ChEBI:CHEBI:15378, ChEBI:CHEBI:16526, ChEBI:CHEBI:57287,
CC         ChEBI:CHEBI:57355, ChEBI:CHEBI:57384, ChEBI:CHEBI:77645; EC=2.3.1.74;
CC         Evidence={ECO:0000255|PROSITE-ProRule:PRU10023};
CC   -!- PATHWAY: Secondary metabolite biosynthesis; flavonoid biosynthesis.
CC   -!- SIMILARITY: Belongs to the thiolase-like superfamily. Chalcone/stilbene
CC       synthases family. {ECO:0000305}.
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DR   EMBL; U15949; AAC49031.1; -; Genomic_DNA.
DR   PIR; T10956; T10956.
DR   AlphaFoldDB; P48399; -.
DR   SMR; P48399; -.
DR   UniPathway; UPA00154; -.
DR   GO; GO:0102128; F:chalcone synthase activity; IEA:UniProtKB-EC.
DR   GO; GO:0016210; F:naringenin-chalcone synthase activity; IEA:UniProtKB-EC.
DR   GO; GO:0009813; P:flavonoid biosynthetic process; IEA:UniProtKB-UniPathway.
DR   Gene3D; 3.40.47.10; -; 2.
DR   InterPro; IPR012328; Chalcone/stilbene_synt_C.
DR   InterPro; IPR001099; Chalcone/stilbene_synt_N.
DR   InterPro; IPR018088; Chalcone/stilbene_synthase_AS.
DR   InterPro; IPR011141; Polyketide_synthase_type-III.
DR   InterPro; IPR016039; Thiolase-like.
DR   PANTHER; PTHR11877; PTHR11877; 1.
DR   Pfam; PF02797; Chal_sti_synt_C; 1.
DR   Pfam; PF00195; Chal_sti_synt_N; 1.
DR   PIRSF; PIRSF000451; PKS_III; 1.
DR   SUPFAM; SSF53901; SSF53901; 2.
DR   PROSITE; PS00441; CHALCONE_SYNTH; 1.
PE   3: Inferred from homology;
KW   Acyltransferase; Flavonoid biosynthesis; Transferase.
FT   CHAIN           1..>352
FT                   /note="Chalcone synthase C"
FT                   /id="PRO_0000215994"
FT   ACT_SITE        170
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU10023"
FT   NON_TER         352
SQ   SEQUENCE   352 AA;  39140 MW;  16075E94B3FD614A CRC64;
     MSTAVTILTD TWTRREKRFD GHAKILAIGT AIPANWVDQT TYPDFYFRIT NSEHLLEYKE
     KFRRICNKSK IRKRHLVITE ELLKKNPNLC TYNDASLNTR QDILVSEVPK LGKEAAMKAI
     KEWGRPISEI THLVFCTSSG VDMPGADFQL AKLLGLSSSV NRLMMYQQGC NAGAVMLRLA
     KDLAENNKGG RVLVVCSEVM LSVFRGPSLQ QEDNLLAQCL FGDGSAAVIV GTEPRPGLET
     PLFELVSAAQ TTIPDTDSYL KLQLREMGLT FHCSKAVPSL ITQNIEDCLV KAFEPFGISD
     WNSIFWILHP GGNAILDGVE EKLGLEPEKL RASRDVLSQY GNLTSACVLF KP