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29-11-2019
Biology

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"The RNA polymerase II C-terminal domain (CTD) consists of multiple repeats of the heptapeptide sequence YSPTSPS, with the number of repeats varying among organisms. Hyperphosphorylation of the CTD is a key step in the transition of the enzyme complex from the initiation to the elongation stage. What does the term "hyperphosphorylation" mean in this context?

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waqaskhan15836 waqaskhan15836

29-11-2019

Answer:

Multiple copies of the heptapeptide repeat are phosphorylated on some combination of serine, threonine, and tyrosine residues.

Explanation:

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