The inhibitor ribonucleoprotein of poly(A)-containing non-polysomal messenger ribonucleoprotein of A. salina cryptobiotic embryos

Autor: Herman Slegers, Etienne Piot, H Backhovens
Rok vydání: 1984
Předmět:
Zdroj: FEBS Letters. 175:16-20
ISSN: 0014-5793
DOI: 10.1016/0014-5793(84)80560-8
Popis: The inhibitor present in poly(A)-containing non-polysomal mRNP preparations of A. salina cryptobiotic embryos has been purified by sucrose density gradient centrifugation, gel filtration on Sephacryl S200 and ion-exchange chromatography on DEAE-cellulose. The inhibitor is a ribonucleoprotein sedimenting at 5–6 S with a M r , of ~ 84 000 ± 6000. The particle is composed of a protein with M r of 64 000 and an RNA with a length of 85 ± 2 nucleotides and is a very potent inhibitor of the translation of mRNA. The inhibition is a property of the RNA but the inhibitor ribonucleoprotein is more efficient in the inhibition of poly(A) containing mRNA than its extracted RNA.
Databáze: OpenAIRE