[gmx-users] protein molecular weight?

[Chih-Ying Lin]

Hi

>From the following website=> it lists
Properties
grade	for molecular biology
form	lyophilized powder
mol wt	single-chain mol wt 14.7 kDa
composition	protein, ≥90%
storage temp.	-20°C

How to get the molecular weight from the above protein properties?

L7651 Lysozyme from chicken egg white lyophilized powder, protein ...
http://www.sigmaaldrich.com/catalog/ProductDetail.do?N4=L7651%7CSIGMA&N5=SEARCH_CONCAT_PNO%7CBRAND_KEY&F=SPEC



Thank you
Lin





Chih-Ying Lin wrote:
> Hi :
> Would anyone explain how to get the protein molecular weight from the
> following note from the catalog?
> mol wt        single-chain mol wt 14.7 kDa
>
>

Where did this come from?  Is this in the manual somewhere?

In any case it's probably just an example of expected output from some utility.

> What does it mean single-chain?

Probably pertains to a single polypeptide in a larger complex, but without
proper context, that's just a guess.

> Is it correct =>
> 1 kDa = 1000 Da = MW 1000.  So MW 240 = 0.24 kDa.
>

Yes.

-Justin

>
> Thank you
> Lin