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Protein

Chalcone synthase 2

Gene

CHS2

Organism
Citrus sinensis (Sweet orange) (Citrus aurantium var. sinensis)
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

Pathwayi: 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)DescriptionActionsGraphical viewLength
Active sitei164PROSITE-ProRule annotation1

GO - Molecular functioni

GO - Biological processi

Keywordsi

Molecular functionAcyltransferase, Transferase
Biological processFlavonoid biosynthesis

Enzyme and pathway databases

UniPathwayiUPA00154.

Names & Taxonomyi

Protein namesi
Recommended name:
Chalcone synthase 2 (EC:2.3.1.74)
Alternative name(s):
Naringenin-chalcone synthase 2
Gene namesi
Name:CHS2
OrganismiCitrus sinensis (Sweet orange) (Citrus aurantium var. sinensis)
Taxonomic identifieri2711 [NCBI]
Taxonomic lineageiEukaryotaViridiplantaeStreptophytaEmbryophytaTracheophytaSpermatophytaMagnoliophytaeudicotyledonsGunneridaePentapetalaerosidsmalvidsSapindalesRutaceaeAurantioideaeCitrus

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_00002159691 – 391Chalcone synthase 2Add BLAST391

Proteomic databases

PRIDEiQ9XJ57.

Structurei

3D structure databases

ProteinModelPortaliQ9XJ57.
SMRiQ9XJ57.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Sequence similaritiesi

Belongs to the chalcone/stilbene synthases family.Curated

Phylogenomic databases

KOiK00660.

Family and domain databases

Gene3Di3.40.47.10. 2 hits.
InterProiView protein in InterPro
IPR012328. Chalcone/stilbene_synth_C.
IPR018088. Chalcone/stilbene_synthase_AS.
IPR001099. Chalcone/stilbene_synthase_N.
IPR011141. Polyketide_synthase_type-III.
IPR016039. Thiolase-like.
PfamiView protein in Pfam
PF02797. Chal_sti_synt_C. 1 hit.
PF00195. Chal_sti_synt_N. 1 hit.
PIRSFiPIRSF000451. PKS_III. 1 hit.
SUPFAMiSSF53901. SSF53901. 2 hits.
PROSITEiView protein in PROSITE
PS00441. CHALCONE_SYNTH. 1 hit.

Sequencei

Sequence statusi: Complete.

Q9XJ57-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MATVQEIRNA QRADGPATVL AIGTATPAHS VNQADYPDYY FRITKSEHMT
60 70 80 90 100
ELKEKFKRMC DKSMIKKRYM YLTEEILKEN PNMCAYMAPS LDARQDIVVV
110 120 130 140 150
EVPKLGKEAA TKAIKEWGQP KSKITHLIFC TTSGVDMPGA DYQLTKLIGL
160 170 180 190 200
RPSVKRFMMY QQGCFAGGTV LRLAKDLAEN NKGARVLVVC SEITAVTFRG
210 220 230 240 250
PADTHLDSLV GQALFGDGAA AVIVGADPDT SVERPLYQLV STSQTILPDS
260 270 280 290 300
DGAIDGHLRE VGLTFHLLKD VPGLISKNIE KSLSEAFAPL GISDWNSIFW
310 320 330 340 350
IAHPGGPAIL DQVESKLGLK GEKLKATRQV LSEYGNMSSA CVLFILDEMR
360 370 380 390
KKSVEEAKAT TGEGLDWGVL FGFGPGLTVE TVVLHSVPIK A
Length:391
Mass (Da):42,592
Last modified:November 1, 1999 - v1
Checksum:iF59029AC36890C54
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AB009351 mRNA. Translation: BAA81664.1.
RefSeqiNP_001306986.1. NM_001320057.1.
UniGeneiCsi.4022.

Genome annotation databases

GeneIDi102607309.
KEGGicit:102607309.

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 one 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.

Entry informationi

Entry nameiCHS2_CITSI
AccessioniPrimary (citable) accession number: Q9XJ57
Entry historyiIntegrated into UniProtKB/Swiss-Prot: December 8, 2000
Last sequence update: November 1, 1999
Last modified: March 15, 2017
This is version 74 of the entry and version 1 of the sequence. See 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