You can use normal fresh tonsil for G,A, and M, Placenta for 
Fibrinogen,, and for C3 and C1q, we use postive samples.

Luke A Perkocha wrote:

>   Hello,
>   I  am trying to develop a protocol for doing direct immunofluorescence
>   testing  on  skin  for  bullous  disease.  I  have  a couple of sample
>   protocols  but  none  say  anything about positive control tissue. I'm
>   uncomfortable running the test on clinical specimens and reporting out
>   a  negative,  without  good  positive  controls. Does anyone know of a
>   commercial  source  for  positive  control tissue, or does anyone have
>   some  they  would  be  willing  to  share  for  development? Help much
>   appreciated.
>   Thanks,
>   Luke
>_______________________________________________
>Histonet mailing list
>Histonet@lists.utsouthwestern.edu
>http://lists.utsouthwestern.edu/mailman/listinfo/histonet
>  
>

_______________________________________________
Histonet mailing list
Histonet@lists.utsouthwestern.edu
http://lists.utsouthwestern.edu/mailman/listinfo/histonet