What is self-catalytic rnas, Biology

Assignment Help:

Q. What is self-catalytic RNAs?

Ribozymes -Term 'ribozyme' was initially suggested by Thomas R. Cech, Nobel Prize winning biochemist, who discovered this class of RNA molecules. A ribozyme is an RNA molecule which may catalyze a biochemical reaction. Before discovery of ribozymes, it was generally presumed that protein enzymes were only class of biological catalysts. Cech's discovery was truly revolutionary in upsetting this dogma. First ribozymes discovered were introns which could catalyze their own splicing, that is a special type of intron within a pre-RNA molecule was found to catalyze all steps required for intron removal and joining of exons together at the biologically correct site.

Ribozymes with other kinds of biological activity have since been discovered. One intriguing potential ribozyme is peptidyl transferase activity of ribosome. Many believe that peptide bond formation is catalyzed by23S ribosomal RNA, a potential ribozyme, instead of ribosomal proteins.


Related Discussions:- What is self-catalytic rnas

Explain prevention of endocarditis, Explain prevention of endocarditis ...

Explain prevention of endocarditis Many physicians believe that antimicrobial prophylaxis before process that may cause transient bacteremia can stop endocarditis and prostheti

How the respiratory system in aquatic molluscs characterized, Q. How is the...

Q. How is the respiratory system in aquatic molluscs characterized? What adaptive respiratory structure do terrestrial molluscs present? In terrestrial molluscs the rich vascul

Phylum annelida, what so special for phylum annelida

what so special for phylum annelida

Hormonal control by insulin, Insulin  is  released  into  the  bloodstream ...

Insulin  is  released  into  the  bloodstream by  the  β  cells  of  the  pancreas  when blood glucose stages are high after feeding and stimulates glycogen synthesis to kept exces

Rotential complications of post removal, Rotential complications of post re...

Rotential complications of post removal -Fracture of the tooth , -leaving the tooth unrestorable , or restored with fair prognosis -root perforation , -post breakage, and -

Ribosome in the translation of one mrna molecule, Q. How many of the same p...

Q. How many of the same proteins are made at the same time by each ribosome in the translation of one mRNA molecule? How does successive protein production occur in translation?

Cellular respiration, Cellular respiration Cellular respiration is mor...

Cellular respiration Cellular respiration is more or less a reverse process of photosynthesis. During cellular respiration complex carbon compounds, especially the carbohydrat

Transport of small molecules, The internal composition of the cell is maint...

The internal composition of the cell is maintained because the plasma membrane is selectively permeable to small molecules. A lot of biological molecules are unable to distribute b

Explain the importance of biochemical tests, Explain the Importance of Bioc...

Explain the Importance of Biochemical Tests? Specific series of biochemical tests have been developed for fast identification of microorganisms in laboratories. These biochemic

Explain the transcription and the replication processes, What are similarit...

What are similarities and differences among the transcription process and the replication processes? A DNA polynucleotide chain serves as a template in replication (DNA duplica

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd