Re: PepSyn; acetylation

From: Vladimir Titov (vmtitov@aha.ru)
Date: Thu Mar 02 2000 - 14:14:00 EST


Acetic anhydride in pyridine is quite a mild method; however if you do
not believe it, you can activate acetic acid like any amino acid (e.g.
with a carbodiimide).

Regards

Vladimir

On 02/03/2000, Michael Jobling wrote:

> Hi Everybody.

> I've got a peptide that I need to acetylate the n-terminus. It has been
> cleaved from the resin and is HPLC clean. It's sequence is:
> KTNMKHMAGAAAAGAVVGGLG. The c-terminus is already amidated. I'm concerned
> that any procedure will affect the side chain of either lysine or the
> histidine or maybe oxidise the methionines. Does anybody have any
> suggestions how I can selectively add this acetyl group?

> Thanks in advance

Vladimir Titov

Bokiron Ltd., Moscow, Russia

vmtitov@aha.ru



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