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TT5 Chalcone-flavanone isomerase family protein [ Arabidopsis thaliana (thale cress) ]

Gene ID: 824678, updated on 4-Feb-2026
Official Symbol
TT5
Official Full Name
Chalcone-flavanone isomerase family protein
Primary source
TAIR:AT3G55120
Locus tag
AT3G55120
See related
Araport:AT3G55120
Gene type
protein coding
RefSeq status
REVIEWED
Organism
Arabidopsis thaliana (ecotype: Columbia)
Lineage
Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta; Spermatophyta; Magnoliopsida; eudicotyledons; Gunneridae; Pentapetalae; rosids; malvids; Brassicales; Brassicaceae; Camelineae; Arabidopsis
Also known as
A11; AtCHI; CFI; CHALCONE FLAVANONE ISOMERASE; chalcone isomerase; CHI; TRANSPARENT TESTA 5
Summary
Catalyzes the conversion of chalcones into flavanones. Required for the accumulation of purple anthocyanins in leaves and stems. Co-expressed with CHS.
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Location:
chromosome: 3
Exon count:
4
Sequence:
Chromosome: 3; NC_003074.8 (20430059..20431597, complement)

Chromosome 3 - NC_003074.8Genomic Context describing neighboring genes Neighboring gene ABC-2 type transporter family protein Neighboring gene ABC-2 type transporter family protein Neighboring gene white-brown complex homolog 19 Neighboring gene Pectin lyase-like superfamily protein

Genomic Sequence:
NC_003074.8

GeneRIFs: Gene References Into Functions

What's a GeneRIF?
Products Interactant Other Gene Complex Source Pubs Description
Preferred Names
Chalcone-flavanone isomerase family protein
NP_191072.1
  • TRANSPARENT TESTA 5 (TT5); FUNCTIONS IN: chalcone isomerase activity; INVOLVED IN: response to UV, response to UV-B, response to karrikin, response to sucrose stimulus, flavonoid biosynthetic process; LOCATED IN: plant-type vacuole membrane, endoplasmic reticulum, extrinsic to endoplasmic reticulum membrane, nucleus; EXPRESSED IN: 24 plant structures; EXPRESSED DURING: 14 growth stages; CONTAINS InterPro DOMAIN/s: Chalcone isomerase, subgroup (InterPro:IPR003466), Chalcone isomerase, 3-layer sandwich (InterPro:IPR016088), Chalcone isomerase (InterPro:IPR016087); BEST Arabidopsis thaliana protein match is: Chalcone-flavanone isomerase family protein (TAIR:AT5G66230.2); Has 391 Blast hits to 390 proteins in 83 species: Archae - 0; Bacteria - 0; Metazoa - 0; Fungi - 0; Plants - 390; Viruses - 0; Other Eukaryotes - 1 (source: NCBI BLink).

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Genome Annotation

The following sections contain reference sequences that belong to a specific genome build. Explain

Reference assembly

Genomic

  1. NC_003074.8 Reference assembly

    Range
    20430059..20431597 complement
    Download
    GenBank, FASTA, Sequence Viewer (Graphics)

mRNA and Protein(s)

  1. NM_115370.4NP_191072.1  Chalcone-flavanone isomerase family protein [Arabidopsis thaliana]

    See identical proteins and their annotated locations for NP_191072.1

    Status: REVIEWED

    UniProtKB/Swiss-Prot
    P41088, Q8W532, Q9LE13, Q9LF74, Q9LF75
    UniProtKB/TrEMBL
    A0A178VIW7, A0A5S9XKY6, A0A654FGW6, A0A7G2EV89
    Conserved Domains (1) summary
    PLN02559
    Location:13242
    PLN02559; chalcone--flavonone isomerase