RNase H digests the RNA strand of an RNA/DNA hybrid. Important enzyme in retroviral replication cycle, and often found as a domain associated with reverse transcriptases. Structure is a mixed alpha+beta fold with three a/b/a layers.
DNA (5'-R(*(OMC)P*(N7X)P*(T39)P*(C5L)P*(A2M))-D(P*(SC)P*(PST)P*(SC)P*AP*(SC)P*(SC)P*(RC)P*(AS)P*(SC)P*(PST))-R(P*(6OO)P*(RFJ)P*(6OO)P*(6OO)P*(6NW))-3')