"The process of introducing a phosphate group onto a serine residue at position 2 within the heptapeptide repeat (YSPTSPS) of the C-terminal domain of RNA polymerase II. Typically, phosphorylation of serine 2 (Ser2) occurs subsequent to phosphorylation of serine 5 and is thus seen in the middle and 3' ends of genes. In vivo, Ser2 phosphorylation is primarily performed by CTDK-I in S. cerevisiae or CDK9 in metazoans." [GOC:krc, PMID:17079683]
There are 31 sequences with this label.
| Name | Species | % in cluster | p-value | corrected p-value | action |
|---|---|---|---|---|---|
| Cluster_261 | Solanum tuberosum Agria | 1.67 % | 0.001535 | 0.028925 |