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Protein

Chalcone synthase

Gene

CHS

Organism
Equisetum arvense (Field horsetail) (Common horsetail)
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:iflavonoid 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 sitei170 – 1701PROSITE-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
OrganismiEquisetum arvense (Field horsetail) (Common horsetail)
Taxonomic identifieri3258 [NCBI]
Taxonomic lineageiEukaryotaViridiplantaeStreptophytaEmbryophytaTracheophytaMoniliformopsesEquisetidaeEquisetalesEquisetaceaeEquisetum

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Chaini1 – 405405Chalcone synthasePRO_0000215975Add
BLAST

Structurei

3D structure databases

ProteinModelPortaliQ9MBB1.
SMRiQ9MBB1. Positions 11-403.
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.
[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.

Q9MBB1-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MTVLEESADA SSRRLAQRAN GPATVLAIGT ANPANVFEQS SYPDFYFDIT
60 70 80 90 100
NSQHMTELKL KFSRMCQKSG IKKRYMHLNS EILKANPSLC AYWEKSLDVR
110 120 130 140 150
QDIAVVEVPK LGKEASLKAI KEWGQPKSKI THLVFCTTSG VDMPGADWAL
160 170 180 190 200
TKLLGLRPSV KRLMMYQQGC FAGGTVLRVA KDVAENNKGA RVLVVCSEIT
210 220 230 240 250
CVTFRGPSET HLDSLVGQAL FGDGAAAVIL GSDPLPEENP CFELHWSGSN
260 270 280 290 300
ILPDSDGAID GHLREVGLTF HLMKDVPGII SKNIGKVLND AFRSAFDESG
310 320 330 340 350
NAEDRPASVN DIFWIAHPGG PAILDQVEEK MKLAPEKMRA TRDVLSEYGN
360 370 380 390 400
MSSACVLFIM DHMRRMSAQN KLQTTGEGLD WGVLLGFGPG LTVETVLLKS

IRLAC
Length:405
Mass (Da):44,216
Last modified:October 1, 2000 - v1
Checksum:iF20F5701381813A5
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AB030004 mRNA. Translation: BAA89501.1.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AB030004 mRNA. Translation: BAA89501.1.

3D structure databases

ProteinModelPortaliQ9MBB1.
SMRiQ9MBB1. Positions 11-403.
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.
[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. Yamazaki Y., Sankawa U.
    Submitted (JUL-1999) to the EMBL/GenBank/DDBJ databases
    Cited for: NUCLEOTIDE SEQUENCE [MRNA].

Entry informationi

Entry nameiCHSY_EQUAR
AccessioniPrimary (citable) accession number: Q9MBB1
Entry historyi
Integrated into UniProtKB/Swiss-Prot: December 8, 2000
Last sequence update: October 1, 2000
Last modified: July 22, 2015
This is version 57 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.