AW: [Histonet] synonym of Factor VIII?

Gudrun Lang gu.lang <@t> gmx.at
Sun Oct 26 02:55:36 CDT 2008


Many thanks to all that answered my question, but I am still in doubt.

 

This is from Wikipedia:

"Von Willebrand factor is not an enzyme and therefore has no catalytic
activity. Its primary function is binding to other proteins, particularly
Factor VIII and it is important in platelet adhesion to wound sites".

"Factor VIII is bound to vWF while inactive in circulation; Factor VIII
degrades rapidly when not bound to vWF. Factor VIII is released from vWF by
the action of thrombin."

 

Could it be possible, that in our technical manner the two proteins are seen
as one, because Factor VIII alone can hardly be detected?

 

Gudrun Lang

 

  _____  

Von: renafail <@t> bellsouth.net [mailto:renafail <@t> bellsouth.net] 
Gesendet: Sonntag, 26. Oktober 2008 00:20
An: gu.lang <@t> gmx.at; histonet <@t> lists.utsouthwestern.edu
Cc: Gudrun Lang
Betreff: Re: [Histonet] synonym of Factor VIII?

 

 Factor VIII is also known as vonWillebrand factor. I don't recall a Factor
VIIIa.though there may very be one. There is a however a Factor XIIIa not
the same at all. 
Rena  

-------------- Original message from "Gudrun Lang" <gu.lang <@t> gmx.at>:
-------------- 


> Hi all, 
> 
> I need some help to find the right antibody for IHC. My pathologists told
me 
> to find a Factor VIIIa - antibody. It should be a good marker for 
> angioendothels. 
> 
> When I search, always the "vonWillebrand Factor" appears. And I don't
know, 
> if that are synonyms for the same antigen. 
> 
> And if there even exists an VIII a, with stress on "a". 
> 
> 
> 
> Can anyone help me? Or even recommend an antibody (Ventana Benchmark XT)? 
> 
> Bye 
> 
> Gudrun Lang 
> 
> 
> 
> Histolabor, Akh Linz, Austria 
> 
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