late endosomal markers?

[LUBYPHEL at UTSW.SWMED.EDU]

Does anybody out there have antibodies to rab7 that they would be willing
to share? Or to any other late endosomal marker. I am trying to distinguish
between late endosomes and lysosomes. Is it true that lamp-1 and cathepsin
D are found in late endosomes as well as lysosomes? Help!

Kate Luby-Phelps
UT Southwestern Medical School
Dallas, TX 75235-9040
214-648-2190