The Association of Methyl Acceptor Ribonucleic Acid with Ribosomes

Species Specificity of Amino Acid Acceptor Ribonucleic Acid and Aminoacyl Soluble Ribonucleic Acid Synthetases.

Several investigators have reported that the activation of amino acids for protein synthesis, i.e. the incorporation of amino acids into soluble ribonucleic acids, is dependent upon the source of both the aminoacyl S-RNA’ synthetases and the S-RNA itself. For example, Rendi and Ochoa (1) reported that aminoacyl S-RNA synthetases from Escherichia coli could not incorporate leucine into yeast or ...

the study of aaag repeat polymorphism in promoter of errg gene and its association with the risk of breast cancer in isfahan region

چکیده: سرطان پستان دومین عامل مرگ مرتبط با سرطان در خانم ها است. از آنجا که سرطان پستان یک تومور وابسته به هورمون است، می تواند توسط وضعیت هورمون های استروئیدی شامل استروژن و پروژسترون تنظیم شود. استروژن نقش مهمی در توسعه و پیشرفت سرطان پستان ایفا می کند و تاثیر خود را روی بیان ژن های هدف از طریق گیرنده های استروژن اعمال می کند. اما گروه دیگری از گیرنده های هسته ای به نام گیرنده های مرتبط به ا...

EORMllTION OF THE 3’-HY DROXYL TERMlNAL TltINUCLEOTIDE SEQUENCE OF AMINO ACID-ACCEPTOR RIBONUCLEIC ACID

The previous papers (1-3) and reports from numerous laboratories (4-9) have demonstrated the enzymic synthesis of amino acyl ribonucleic acid derivatives. Studies by Zachau et al. (IO), IIecht et al. (ll), and ourselves (3) have established that each amino acid is linked to a specific polynucleotide chain through an ester linkage with either the 2’or 3’-hydrosyl group of the terminal nucleotide...

The enzymic synthesis of amino acyl derivatives of ribonucleic acid. IV. The formation of the 3'-hydroxyl terminal trinucleotide sequence of amino acid-acceptor ribonucleic acid.

Synthesis of cyclohexylpuromycin and its reaction with N-acetylphenylalanyl-transfer ribonucleic acid on rat liver ribosomes.

1. Cyclohexylpuromycin, an anlogue of puromycin in which a cyclohexane ring replaces the aromatic benzene ring of the L-phenylalanyl moeity of the nucleoside., has been synthesized and examined for its ability to release N-acetylphenylalanine from tRNA attached to rat liver ribosomes. 2.dl-Cyclohexylpuromycin was active in reacting with N-[3H]acetylphenylalanyl-tRNA on rat liver ribosomes to fo...