Characterization of the cDNA synthesized by avian retrovirus reverse transcriptase using 35 S avian myeloblastosis virus RNA and an exogenous bovine primer tRNA

FEBS Letters

Litvak, Simon¹  Sarih, Leila¹  Araya, Alejandro¹ 

[1] Institut de Biochimie Cellulaire et Neurochimie du CNRS, 1 rue Camille Saint Saens, 33077 Bordeaux cedex, France

关键词: Reverse transcriptase;    Avian myeloblastosis virus;    tRNATrp;    cDNA synthesis;   

DOI  :  10.1016/0014-5793(88)80642-2

学科分类：生物化学/生物物理

来源: John Wiley & Sons Ltd.

【 摘 要 】

Bovine tRNA^Trp can be partially hybridized to the avian myeloblastosis virus (AMV) 35 S RNA at 37°C, in the presence of AMV RNA-dependent DNA polymerase (reverse transcriptase). This template-primer complex is active in the synthesis of viral cDNA. The size of the cDNA products synthesized in the in vitro reconstituted AMV system was determined by urea-polyacrylamide gel electrophoresis using a tRNA labelled at the 3′-end by yeast tRNA nucleotidyl transferase. The synthesized cDNA has a size of about 100 nucleotides and was shown by Southern blotting to be complementary to a specific sequence of the 5′-end of the retroviral genome. These results indicate that reverse transcriptase is able to anneal the exogenous primer tRNA at the ‘primer-binding site’ near the 5′-end of the long terminal repeat (LTR) of AMV RNA.

【 授权许可】

Unknown