Literature summary for 1.14.20.4 extracted from

Kim, E.; Kim, C.; Kim, S.
Identification of two novel mutant ANS alleles responsible for inactivation of anthocyanidin synthase and failure of anthocyanin production in onion (Allium cepa L.) (2016), Euphytica, 212, 427-437 .

No PubMed abstract available

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Protein Variants

Protein Variants	Comment	Organism
G229R	inactive mutant enzyme	Allium cepa
S188L	inactive mutant enzyme	Allium cepa

Organism

Organism	UniProt	Comment	Textmining
Allium cepa	A2ICD1	-	-

General Information

General Information	Comment	Organism
malfunction	two inactive alleles are reported: a mutant anthocyanidin synthase allele containing a 4-bp insertion at the end of exon1 is identified from yellow bulbs of the F2 population in which the DFR-A (dihydroflavonol 4-reductase) genotype is homozygous for an active allele. The 4-bp insertion causes a frame-shift mutation and results in creation of a premature stop codon at the start of exon2. This mutant anthocyanidin synthase allele is designated ANSPS allele. RT-PCR results show that transcripts of the ANSPS allele are almost undetectable in yellow F2 bulbs, implying the involvement of nonsense-mediated mRNA decay. Another inactive anthocyanidin synthase allele is identified from the light-red F1 populations showing complementation between DFR-A (dihydroflavonol 4-reductase) and anthocyanidin synthase genes. A critical amino acid change of the strictly conserved serine residue into leucine is found in this mutant allele designated ANSS188L	Allium cepa

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Release 2023.1 (January 2023)