Here is a good site for information about antibodies to be used on mouse tissue: NCI-Frederick, Laboratory Animal Sciences Program http://web.ncifcrf.gov/rtp/lasp/phl/immuno/ <http://web.ncifcrf.gov/rtp/lasp/phl/immuno/> Tim Morken Lab Vision / NeoMarkers email: tpmorken <@t> labvision.com www.labvision.com