>Date: 10 Oct 2002 16:01:04 -0500
 >From: "Caldas, Hugo" 
 >Subject: CD31 (PECAM-1) antibody
 >Does anyone know of a commercial source of CD31 antibody (against mouse) to
 >would work on formalin-fixed paraffin embeded sections?
 >It seems most companies carry them for frozen sections only.
 >Thanks for your help
 >Hugo Caldas
 >Columbus Children's Hospital
 >Columbus, OH

Dear Hugo,
You may try the Chemicon antibody MAB1393. According to the data sheet that 
antibody is directed against an epitope resistant against methanol 
fixation. This gives you maximum chance for effective staining on FFPE 
sections.
Good luck!
Chris van der Loos
Academic Medical Center
Dept. Cardiovascular Pathology
Amsterdam, The Netherlands