messenger RNA-containing ribonucleoprotein from mitochondrial polyribosomes of rat liver

✍ Scribed by O. I. Kisselev; B. S. Gaitskhoki; N. A. Klimov

• Publisher: Springer
• Year: 1975
• Tongue: English
• Weight: 305 KB
• Volume: 2
• Category: Article
• ISSN: 0301-4851
• DOI: 10.1007/bf00357545

✦ Synopsis

A ribonucleoprotein was released from carefully purified rat liver mitochondrial polyribosomes after dissociation with 1 M potassium chloridepuromycin. This ribonucleoprotein was characterized by a sedimentation coefficient ranging from 10-14 S and buoyant density of 1.48g cm -a in cesium chloride equilibirum centrifugation differing in these parameters from the subunits of mitochondrial ribosomes. Poly(A)-containing RNA constituted more than 30% of the total RNA content in this non-ribosomal ribonucleoprotein.