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Protein

Chalcone synthase

Gene

CHS

Organism
Onobrychis viciifolia (Common sainfoin)
Status
Reviewed-Annotation score: Annotation score: 2 out of 5-Experimental evidence at transcript leveli

Functioni

The primary product of this enzyme is 4,2',4',6'-tetrahydroxychalcone (also termed naringenin-chalcone or chalcone) which can under specific conditions spontaneously isomerize into naringenin.

Catalytic activityi

3 malonyl-CoA + 4-coumaroyl-CoA = 4 CoA + naringenin chalcone + 3 CO2.PROSITE-ProRule annotation

Pathway: flavonoid biosynthesis

This protein is involved in the pathway flavonoid biosynthesis, which is part of Secondary metabolite biosynthesis.
View all proteins of this organism that are known to be involved in the pathway flavonoid biosynthesis and in Secondary metabolite biosynthesis.

Sites

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Active sitei164 – 1641PROSITE-ProRule annotation

GO - Molecular functioni

GO - Biological processi

Complete GO annotation...

Keywords - Molecular functioni

Acyltransferase, Transferase

Keywords - Biological processi

Flavonoid biosynthesis

Enzyme and pathway databases

UniPathwayiUPA00154.

Names & Taxonomyi

Protein namesi
Recommended name:
Chalcone synthase (EC:2.3.1.74)
Alternative name(s):
Naringenin-chalcone synthase
Gene namesi
Name:CHS
OrganismiOnobrychis viciifolia (Common sainfoin)
Taxonomic identifieri3882 [NCBI]
Taxonomic lineageiEukaryotaViridiplantaeStreptophytaEmbryophytaTracheophytaSpermatophytaMagnoliophytaeudicotyledonsGunneridaePentapetalaerosidsfabidsFabalesFabaceaePapilionoideaeHedysareaeOnobrychis

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Chaini1 – 390390Chalcone synthasePRO_0000216016Add
BLAST

Structurei

3D structure databases

ProteinModelPortaliO22586.
SMRiO22586. Positions 4-390.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Sequence similaritiesi

Belongs to the chalcone/stilbene synthases family.Curated

Family and domain databases

Gene3Di3.40.47.10. 2 hits.
InterProiIPR012328. Chalcone/stilbene_synth_C.
IPR018088. Chalcone/stilbene_synthase_AS.
IPR001099. Chalcone/stilbene_synthase_N.
IPR011141. Polyketide_synthase_type-III.
IPR016039. Thiolase-like.
IPR016038. Thiolase-like_subgr.
[Graphical view]
PfamiPF02797. Chal_sti_synt_C. 1 hit.
PF00195. Chal_sti_synt_N. 1 hit.
[Graphical view]
PIRSFiPIRSF000451. PKS_III. 1 hit.
SUPFAMiSSF53901. SSF53901. 2 hits.
PROSITEiPS00441. CHALCONE_SYNTH. 1 hit.
[Graphical view]

Sequencei

Sequence statusi: Complete.

O22586-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MVDVAESRRT QRAEGPRTIF AIATANPPNC VEQSTYPDFY FKITNSEHKV
60 70 80 90 100
ELKEKFQRMD DKSMIKRRYM YLTEEILKEN PNVCEYMAPS LDARQDMFVV
110 120 130 140 150
EVPRLGKEAA VKAIKEWGQP KSKITHLIVC TTSGVDMPGA DYQLTKLLGL
160 170 180 190 200
RPHVKRYMMY QQGCFAGGTV LRLAKDLAEN NKGARVLVVC SEVTAVTFRG
210 220 230 240 250
PSDTHLDSLV GQALFGDGAA ALIVGSDPIP EIEKPLFELI WTAQTIAPDS
260 270 280 290 300
EGAIDGHLRE VGLTFHLLKD VPGIVSKNID KALVEAFQPL GISDYNSIFW
310 320 330 340 350
IAHPGGPAIL DQVEQKLAFK PEKMRATREV LSEYGNMSSA CVLFILDEMR
360 370 380 390
KKSAQNGLKT TGEGLEWGVL FGFGPGLTIE TVVLLRSVAI
Length:390
Mass (Da):43,152
Last modified:January 1, 1998 - v1
Checksum:iFA13E7541A745067
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AF026258 mRNA. Translation: AAB81987.1.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AF026258 mRNA. Translation: AAB81987.1.

3D structure databases

ProteinModelPortaliO22586.
SMRiO22586. Positions 4-390.
ModBaseiSearch...
MobiDBiSearch...

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Enzyme and pathway databases

UniPathwayiUPA00154.

Family and domain databases

Gene3Di3.40.47.10. 2 hits.
InterProiIPR012328. Chalcone/stilbene_synth_C.
IPR018088. Chalcone/stilbene_synthase_AS.
IPR001099. Chalcone/stilbene_synthase_N.
IPR011141. Polyketide_synthase_type-III.
IPR016039. Thiolase-like.
IPR016038. Thiolase-like_subgr.
[Graphical view]
PfamiPF02797. Chal_sti_synt_C. 1 hit.
PF00195. Chal_sti_synt_N. 1 hit.
[Graphical view]
PIRSFiPIRSF000451. PKS_III. 1 hit.
SUPFAMiSSF53901. SSF53901. 2 hits.
PROSITEiPS00441. CHALCONE_SYNTH. 1 hit.
[Graphical view]
ProtoNetiSearch...

Publicationsi

  1. "Proanthcyanidin synthesis in the forage legume Onobrychis viciifolia. A study of chalcone synthase, dihydroflavonol 4-reductase and leucoanthocyanidin 4-reductase in developing leaves."
    Joseph R.G., Tanner G., Larkin P.
    Submitted (SEP-1997) to the EMBL/GenBank/DDBJ databases
    Cited for: NUCLEOTIDE SEQUENCE [MRNA].
    Tissue: Leaf.

Entry informationi

Entry nameiCHSY_ONOVI
AccessioniPrimary (citable) accession number: O22586
Entry historyi
Integrated into UniProtKB/Swiss-Prot: July 15, 1999
Last sequence update: January 1, 1998
Last modified: October 1, 2014
This is version 66 of the entry and version 1 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programPlant Protein Annotation Program

Miscellaneousi

Documents

  1. PATHWAY comments
    Index of metabolic and biosynthesis pathways
  2. SIMILARITY comments
    Index of protein domains and families

External Data

Dasty 3

Similar proteinsi

Links to similar proteins from the UniProt Reference Clusters (UniRef) at 100%, 90% and 50% sequence identity:
100%UniRef100 combines identical sequences and sub-fragments with 11 or more residues from any organism into Uniref entry.
90%UniRef90 is built by clustering UniRef100 sequences that have at least 90% sequence identity to, and 80% overlap with, the longest sequence (a.k.a seed sequence).
50%UniRef50 is built by clustering UniRef90 seed sequences that have at least 50% sequence identity to, and 80% overlap with, the longest sequence in the cluster.