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
Messages
2
Reaction score
0
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:
 
Biology news on Phys.org
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.
 
I've been reading a bunch of articles in this month's Scientific American on Alzheimer's and ran across this article in a web feed that I subscribe to. The SA articles that I've read so far have touched on issues with the blood-brain barrier but this appears to be a novel approach to the problem - fix the exit ramp and the brain clears out the plaques. https://www.sciencealert.com/new-alzheimers-treatment-clears-plaques-from-brains-of-mice-within-hours The original paper: Rapid amyloid-β...
https://www.discovermagazine.com/the-deadliest-spider-in-the-world-ends-lives-in-hours-but-its-venom-may-inspire-medical-miracles-48107 https://en.wikipedia.org/wiki/Versutoxin#Mechanism_behind_Neurotoxic_Properties https://www.sciencedirect.com/science/article/abs/pii/S0028390817301557 (subscription or purchase requred) The structure of versutoxin (δ-atracotoxin-Hv1) provides insights into the binding of site 3 neurotoxins to the voltage-gated sodium channel...
Back
Top