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Ribonuclease H2 non-catalytic subunit (Ylr154p-like). This entry represents the non-catalytic subunit of RNase H2, which in S. cerevisiae is Ylr154p/Rnh203p. Whereas bacterial and archaeal RNases H2 are active as single polypeptides, the Saccharomyces cerevisiae homologue, Rnh2Ap, when expressed in Escherichia coli, fails to produce an active RNase H2. For RNase H2 activity three proteins are required [Rnh2Ap (Rnh201p), Ydr279p (Rnh202p) and Ylr154p (Rnh203p)]. Deletion of any one of the proteins or mutations in the catalytic site in Rnh2A leads to loss of RNase H2 activity. RNase H2 ia an endonuclease that specifically degrades the RNA of RNA:DNA hybrids. It participates in DNA replication, possibly by mediating the removal of lagging-strand Okazaki fragment RNA primers during DNA replication.
No pairwise interactions found for the domain RNase_H2_suC
Tips:  If you've navigated here from a protein, hovering over a position on the weblogo will display the corresponding protein position for that domain position. The histograms below the weblogo indicate mutations found on the domain. Red is for disease (OMIM) and blue is for SNPs. Functional Features are displayed as orange boxes under the histograms. You can choose which features are displayed in the box below. Range on the Protein: Protein ID Protein Position Domain Position:  No Conserved Features/Sites Found for RNase_H2_suC
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