ID   CHS4_TRISU              Reviewed;         311 AA.
AC   P51086;
DT   01-OCT-1996, integrated into UniProtKB/Swiss-Prot.
DT   01-OCT-1996, sequence version 1.
DT   25-MAY-2022, entry version 79.
DE   RecName: Full=Chalcone synthase 4;
DE            EC=2.3.1.74;
DE   AltName: Full=Naringenin-chalcone synthase 4;
DE   Flags: Fragment;
GN   Name=CHS4;
OS   Trifolium subterraneum (Subterranean clover).
OC   Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC   Spermatophyta; Magnoliopsida; eudicotyledons; Gunneridae; Pentapetalae;
OC   rosids; fabids; Fabales; Fabaceae; Papilionoideae; 50 kb inversion clade;
OC   NPAAA clade; Hologalegina; IRL clade; Trifolieae; Trifolium.
OX   NCBI_TaxID=3900;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RC   STRAIN=cv. Karridale; TISSUE=Leaf, and Stem;
RX   PubMed=7716240; DOI=10.1104/pp.107.3.1035;
RA   Howles P.A., Arioli T., Weinman J.J.;
RT   "Nucleotide sequence of additional members of the gene family encoding
RT   chalcone synthase in Trifolium subterraneum.";
RL   Plant Physiol. 107:1035-1036(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   -!- DEVELOPMENTAL STAGE: Expressed during development.
CC   -!- SIMILARITY: Belongs to the thiolase-like superfamily. Chalcone/stilbene
CC       synthases family. {ECO:0000305}.
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DR   EMBL; L24516; AAA73938.1; -; Genomic_DNA.
DR   AlphaFoldDB; P51086; -.
DR   SMR; P51086; -.
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   SUPFAM; SSF53901; SSF53901; 2.
DR   PROSITE; PS00441; CHALCONE_SYNTH; 1.
PE   2: Evidence at transcript level;
KW   Acyltransferase; Flavonoid biosynthesis; Transferase.
FT   CHAIN           1..>311
FT                   /note="Chalcone synthase 4"
FT                   /id="PRO_0000216071"
FT   ACT_SITE        164
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU10023"
FT   NON_TER         311
SQ   SEQUENCE   311 AA;  34136 MW;  D6869344C8967645 CRC64;
     MVSVSEIRKA QRAEGPATIL AIGTANPANK VEQATYPDFY FKITNSEHKV ELKEKFQRMC
     DKSMIKSRYM YLTEEILKEN PSVCEYMAPS LDARQDMVVV EVPRLGKEAA VKAIKEWGQP
     KSKITHLIFC TTSGVDMPGA DYQLTKLLGL RPYVKRYMMY QQGCFAGGTV LRLAKDLAEN
     NKGARVLVVC SEVTAVTFRG PSDTHLDSLV GQALFGDGAA ALIVGSDPVP EIEKPIFEMV
     WTAQTIAPDS EGAIDGHLRE AGLTFHLLKD VPGIVSKNID KALVEAFQPL GISDYNSIFW
     IAHPGGPAIL D