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Protein

Chalcone synthase A

Gene

CHSA

Organism
Ipomoea trifida (Morning glory)
Status
Reviewed-Annotation score: Annotation score: 2 out of 5-Protein inferred from homologyi

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

Pathwayi

Sites

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Active sitei168 – 1681PROSITE-ProRule annotation

GO - Molecular functioni

  1. naringenin-chalcone synthase activity Source: UniProtKB-EC

GO - Biological processi

  1. flavonoid biosynthetic process Source: UniProtKB-UniPathway
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 A (EC:2.3.1.74)
Alternative name(s):
Naringenin-chalcone synthase A
Short name:
CHS-A
Gene namesi
Name:CHSA
OrganismiIpomoea trifida (Morning glory)
Taxonomic identifieri35884 [NCBI]
Taxonomic lineageiEukaryotaViridiplantaeStreptophytaEmbryophytaTracheophytaSpermatophytaMagnoliophytaeudicotyledonsGunneridaePentapetalaeasteridslamiidsSolanalesConvolvulaceaeIpomoeeaeIpomoea

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Chaini1 – ›362›362Chalcone synthase APRO_0000215997Add
BLAST

Structurei

3D structure databases

ProteinModelPortaliP48401.
SMRiP48401. Positions 14-360.
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: Fragment.

P48401-1 [UniParc]FASTAAdd to Basket

« Hide

        10         20         30         40         50
MSPTATVQLT DDTAKRFEGH AKLLAIGTAT PTNWVDQATY PDFYFRITNS
60 70 80 90 100
EHLLEHKEKF RRICNKSKIR KRHLVLTKEL LKKNPNLCTY NDASLNTRQD
110 120 130 140 150
ILVSEVPKLG KEAAMKAIKE WGRPISEITH LVFCTTSGVD MPGADFQLTK
160 170 180 190 200
LLGLNSSVKR LMMYQQGCNA GAAMLRLVKD LAENNKGARV LVVCSEITIN
210 220 230 240 250
IFRGPSLEQD DNLLAQCLFG DGSAAMIVGK DPRPGLETPL FELVSSAQTI
260 270 280 290 300
VPNTDSHLKL HLREMGLTFH CSRAVPSVLA ENVEDCLVKA FEPYGISDWN
310 320 330 340 350
SIFWVFHPGG NAIVDRVEER LGLGPERLRA SRDVLSEYGN LTSACVLFIL
360
DEMRKKSKKD EQ
Length:362
Mass (Da):40,419
Last modified:February 1, 1996 - v1
Checksum:i10E9C8136FB640B8
GO

Experimental Info

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Non-terminal residuei362 – 3621

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
U15950 Genomic DNA. Translation: AAC49032.1.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
U15950 Genomic DNA. Translation: AAC49032.1.

3D structure databases

ProteinModelPortaliP48401.
SMRiP48401. Positions 14-360.
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. "Evolution of the chalcone synthase gene family in the genus Ipomoea."
    Durbin M.L., Learn G.H., Huttley G.A., Clegg M.T.
    Proc. Natl. Acad. Sci. U.S.A. 92:3338-3342(1995) [PubMed] [Europe PMC] [Abstract]
    Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA].

Entry informationi

Entry nameiCHSA_IPOTF
AccessioniPrimary (citable) accession number: P48401
Entry historyi
Integrated into UniProtKB/Swiss-Prot: February 1, 1996
Last sequence update: February 1, 1996
Last modified: October 1, 2014
This is version 67 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.