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Posted by Nrg2Nfinit on Nov-07-2005 23:29:

If anyone knows the difference between..

transcription in protein synthesis and in DNA replicatin please answer..

i need to know if helicase is involved in protein sythesis for the unwinding of DNA.



Posted by yujie__ on Nov-07-2005 23:55:

is it?



Posted by Nrg2Nfinit on Nov-08-2005 00:02:

no but i wouldnt mind some cocaine to help me study right now lol


Posted by yujie__ on Nov-08-2005 00:22:

what are u planning to study/create in you mad scientist lab there?? when do you plan to create clones to take over evily evil empires?


Posted by EriK_V on Nov-08-2005 01:13:

i know for a fact that helicase is needed in DNA replicaiton. i'm not sure if it's used in splitting protein synthesis.


Posted by Estella on Nov-08-2005 01:15:

Re: If anyone knows the difference between..

quote:
Originally posted by Nrg2Nfinit
transcription in protein synthesis and in DNA replicatin please answer..

i need to know if helicase is involved in protein sythesis for the unwinding of DNA.




The helicase (sort of DNA repair mechanism) attacks the H Bond enzymes, breaking them down to repair or totally eliminating abnormal sections to add new normal sections of DNA. The DNA ligase is the sort of Scotch adhesive tape, while the gyrase gives the helix shape.

As far as transcription in replication, all I know is DNA is transcripted (copied) to the mRNA (messenger) There is a transcriptional control present in replication that may or may not be so in protein synthesis?

JESUSS. I need a drink.


Posted by Estella on Nov-08-2005 01:26:

Oops. Ok. I'm looking in notes now. I have helicase under Protein Synthesis, just merely as breaking down H Bonds. Is this what you mean by "unwinding?" I guess this is for example breaking down:

A - - -- T
G ---- --C

from the helix form to replicate and in turn becoming:

-T A- (replicates down to form the strand)
-A
-C
-G
-T


Posted by Nrg2Nfinit on Nov-08-2005 01:54:

your good estella sort of answers my question.. you went into alot of detail with hellicase..

I know it is used to unwind the DNA so replication can occur

durin RNA transcription however RNA poylmerase has its own function of helicase and its not a seperate unit (as in DNA)


http://en.wikipedia.org/wiki/Helicase

but i really appreciate that lookthrough estella


Posted by Nrg2Nfinit on Nov-08-2005 01:55:

quote:
Originally posted by Estella
Oops. Ok. I'm looking in notes now. I have helicase under Protein Synthesis, just merely as breaking down H Bonds. Is this what you mean by "unwinding?" I guess this is for example breaking down:

A - - -- T
G ---- --C

from the helix form to replicate and in turn becoming:

-T A- (replicates down to form the strand)
-A
-C
-G
-T


this is replication.. not translation into proteins.. in translation Uracil is replaced by the Thymines (U -->T ) and U binds with A (adenine)


Posted by Flyboy217 on Nov-08-2005 02:02:

Re: If anyone knows the difference between..

quote:
Originally posted by Nrg2Nfinit
transcription in protein synthesis and in DNA replicatin please answer..

i need to know if helicase is involved in protein sythesis for the unwinding of DNA.



During transcription, an RNA polymerase is used to generate the mRNA. In replication, a DNA polymerase is used.

The major difference is that RNA polymerase acts as its own helicase, while DNA polymerase requires a separate helicase enzyme.

Another point to note is that DNA polymerase has a better proofreading mechanism than RNA polymerase.


Edit: I see you have answered your own question.


Posted by wizniz on Nov-08-2005 02:05:

be cafe


Posted by Estella on Nov-08-2005 02:06:

quote:
Originally posted by Nrg2Nfinit
this is replication.. not translation into proteins.. in translation Uracil is replaced by the Thymines (U -->T ) and U binds with A (adenine)


You're right. Thanks. Should I be writing that down? We've only done A & G Purines/T & C Pyrimidines as far as base pairs. OK so yes, helicase is used to unwind as pretext for DNA replication. If I miss that on the test Monday I'm degutting you. Or me.


Posted by Nrg2Nfinit on Nov-08-2005 02:37:

quote:
Originally posted by Estella
You're right. Thanks. Should I be writing that down? We've only done A & G Purines/T & C Pyrimidines as far as base pairs. OK so yes, helicase is used to unwind as pretext for DNA replication. If I miss that on the test Monday I'm degutting you. Or me.


what are you taking highschool biology or med school


Posted by Nrg2Nfinit on Nov-08-2005 02:43:

Re: Re: If anyone knows the difference between..

quote:
Originally posted by Flyboy217

Another point to note is that DNA polymerase has a better proofreading mechanism than RNA polymerase.




of course since its basically doing replication and helicase is acting as a seperate unit, less complex activity involved. i think that makes sense?


Posted by StereoPrincess on Nov-08-2005 02:46:

quote:
Originally posted by Nrg2Nfinit
urin RNA transcription however RNA poylmerase has its own function of helicase and its not a seperate unit (as in DNA)


bingo, my nerdy friend.


Posted by Nrg2Nfinit on Nov-08-2005 02:49:


Posted by StereoPrincess on Nov-08-2005 02:56:

are you studying for the second year biochem course?


Posted by Nrg2Nfinit on Nov-08-2005 03:00:

lol no first year biology .... i know i know


Posted by UWM on Nov-08-2005 03:03:

If you have any questions at all on this topic direct them all to me


Posted by Estella on Nov-08-2005 03:08:

quote:
Originally posted by Nrg2Nfinit
what are you taking highschool biology or med school


hahhhh !! No way. This is a Biology 101 college course that's required for pre-req's. Please. Sir. No. Do you know how many mind games I have to play just to merely help me pronounce these terms?! I hate Science. And even if sometimes I do find myself in awe, I deter that by cursing those trying to play GOD.


Posted by Estella on Nov-08-2005 03:09:

quote:
Originally posted by UWM
If you have any questions at all on this topic direct them all to me


What's your major?


Posted by UWM on Nov-08-2005 03:10:

Biochemistry and Molecular Biology


Posted by wizniz on Nov-08-2005 03:10:

LAMEST THREAD OVER AND IT ENDS....










































nnnnn


















nnnnnnnnnoooo





















NOW.


Posted by Allied Nations on Nov-08-2005 03:14:

Awww... thread over?


I musta missed teh memo.


Posted by Estella on Nov-08-2005 03:17:

quote:
Originally posted by UWM
Biochemistry and Molecular Biology


My brain just short circuited.


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