Protein Variants | Comment | Organism |
---|---|---|
additional information | naturally occuring low-caffeine fruits contain an extra transcript of the caffeine synthase gene containing only part of exon 1 and all of exon 3. The sequence of the mutant caffeine synthase gene shows a substitution I266V in the enzyme active site that probably interferes with enzymatic activity. The absence of caffeine in these mutants probably results from a combination of transcriptional regulation and the presence of mutations | Coffea arabica |
Organism | UniProt | Comment | Textmining |
---|---|---|---|
Coffea arabica | Q8H0D3 | CCS1 | - |
Organism | Comment | Expression |
---|---|---|
Coffea arabica | naturally occuring low-caffeine fruits have a lower expression of the theobromine synthase and caffeine synthase genes and also contain an extra transcript of the caffeine synthase gene encoding a mutant form. The absence of caffeine in these mutants probably results from a combination of transcriptional regulation and the presence of mutations | additional information |