RNA in protein synthesis

Discussion of all aspects of biological molecules, biochemical processes and laboratory procedures in the field.

Moderators: honeev, Leonid, amiradm, BioTeam

Post Reply
bionut720
Garter
Garter
Posts: 21
Joined: Sat Apr 07, 2007 3:21 am

RNA in protein synthesis

Post by bionut720 » Mon Apr 23, 2007 4:30 am

could protein synthesis occur without the RNA molecules???

soso
Garter
Garter
Posts: 12
Joined: Tue Mar 27, 2007 3:32 pm

Post by soso » Mon Apr 23, 2007 12:37 pm

Inside the nucleus
...no way

bionut720
Garter
Garter
Posts: 21
Joined: Sat Apr 07, 2007 3:21 am

Post by bionut720 » Mon Apr 23, 2007 2:20 pm

im still a little confused?

User avatar
kotoreru
Coral
Coral
Posts: 400
Joined: Thu Apr 12, 2007 9:25 pm
Location: London

Post by kotoreru » Mon Apr 23, 2007 2:33 pm

Well, protein synthesis involves the process of transcription and translation (by and large), yes? These processes require several different forms of RNA.

I'm still pondering your question as I think I may have read something somewhere once upon a time which leads me to think that the answer is not so simple...

I'll get back to you if I can.
"What are humans if they don't learn at University? Animals, yes."

^^One of my ex-girlfriends said that. I stress the ex part.

blcr11
Viper
Viper
Posts: 672
Joined: Fri Mar 30, 2007 4:23 am

Post by blcr11 » Mon Apr 23, 2007 3:06 pm

It’s kind of a broadly worded question, don’t you think? Peptide chemists make “proteins” all the time—from C to N termini (the reverse order compared to synthesis on the ribosome) using sequential de-blocking, activation, condensation reactions with nary a nucleotide in sight. But I suspect you’re asking about primordial conditions. There the answer is less (much less, in my opinion) clear. There was a thought that some clays might act as catalysts for the condensation of amino acids into peptides. Any specialist in primordial chemistry can correct me if I’m way off, but the thinking seems to be that some form of RNA-based life preceded any form of protein or protein-nucleic acid systems. My guess, for what it is worth, is that there were parallel, independent systems of nucleic acid self-replication and some regions of local peptide pot-boiling that somehow merged fortuitously. I’ve always wanted a time-machine so that I could watch how it all started, and see what really happened to the dinosaurs, etc. Kirk, where are you when I need you? Priceline doesn’t cover this sort of thing.

User avatar
kotoreru
Coral
Coral
Posts: 400
Joined: Thu Apr 12, 2007 9:25 pm
Location: London

Post by kotoreru » Mon Apr 23, 2007 4:45 pm

Hmm interesting stuff about the clay. My garden may not be so useless after all... :P

I think you are nearly there regarding what I was thinking of, blcr11. I seem to recall the good old Creationists having an argument along the lines of "how can proteins be made if you require DNA/RNA which in turn require proteins to be made???".

Clearly God must have made one before the other. Like an obscene chicken and egg question...
"What are humans if they don't learn at University? Animals, yes."

^^One of my ex-girlfriends said that. I stress the ex part.

roniadam
Death Adder
Death Adder
Posts: 81
Joined: Wed Apr 25, 2007 3:43 pm

Post by roniadam » Wed Apr 25, 2007 4:09 pm

My openion is NO
because no translation ocuur without mRNA

david23
Coral
Coral
Posts: 430
Joined: Thu May 03, 2007 8:15 am

Post by david23 » Sat May 05, 2007 1:42 am

errr your question is too broad as mentioned already. Proteins can be made in the lab pretty simple, but in natural systems u need mRNA, because thats how things have been for billions of years. I hope u got it.

Post Reply

Who is online

Users browsing this forum: Bing [Bot] and 2 guests