protease treatment of either cd45-positive cells or purified cd45 molecules revealed that both conventional cd45 and 180-kda ( uchl1 epitope ) ag specificities are defined by epitopes present on a protease-resistant domain which is internal to the protease-sensitive epitopes defining both cd45r and 220/205/190-kda ag specificities .
C1514524
protease
C0030946
protease