出典:Wikipedia
出典:『Wikipedia』 (2011/05/01 13:54 UTC 版)
HSURs (Herpesvirus saimiri U RNAs) are viral small regulatory RNAs. They are found in Herpesvirus saimiri which is responsible for aggressive T-cell leukemias in primates. They are nuclear RNAs which bind host proteins to form small nuclear ribonucleoproteins (snRNPs). The RNAs are 114-143 nucleotides in length and the HSUR family has been subdivided into HSURs numbered 1 to 7. The function of HSURs has not yet been identified; they do not affect transcription so are thought to act post-transciptionally, potentially influencing the stability of host mRNAs.