Biochem Help: Cell Cycle Protein Synthesis Q&A

AI Thread Summary
The discussion centers around a question regarding protein synthesis during the cell cycle, specifically which proteins are predominantly synthesized in the S phase. The options provided include cyclins, DNases, histones, RNA polymerases, snRNPs, and tubulins. The major event during the S phase is DNA replication, which leads to the conclusion that histones are the primary proteins synthesized during this phase, as they are essential for DNA stability. A reference to a relevant paper is provided to support this answer. The participant mentions their background in biochemistry and their intent to review material effectively.
Roxanita
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Biochem help :(??

Hi :smile:
I have seen great people on this forum, can anybody please help me with this question?

Q- The majority of cellular proteins and RNA are synthesized throughout the cell cycle and are only interrupted briefly during M phase. Synthesis of which of the following proteins occurs predominantly in S phase of the cell cycle?

A) Cyclins

B) DNases

C) Histones

D) RNA polymerases

E) snRNPs (small nuclear ribonucleoproteins)

F) Tubulins

thanks in advance :shy:
 
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Do you know what is the major evenet during the S-phase? This should eliminated four of the choice that do not have any related role with to this event. One choice has a direct role in contolling the S-phase events whereas the last remaining protein is an absolute require for DNA stability.

this paper gives the answer
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=325892
 
Thanks Ian

I read about it. Histones is the answer. Sorry I am studying Biochemistry at med school, but was trying to solve questions before doing a good review. Sorry.
Thanks again.
 

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