methylated cap

methylated cap

[¦meth·ə‚lād·əd ′kap]
(cell and molecular biology)
A modified guanine nucleotide that terminates a messenger ribonucleic acid molecule.
References in periodicals archive ?
Most lower eukaryotes, including yeast, fungi and amebas, were found to contain the less methylated Cap 0 ([m.
In many lower eukaryotes, including yeast, mRNAs contain mainly Cap 0, and higher organisms usually have more extensively methylated caps.