Fig. 4.
Comparative levels of P2X1 receptor protein and CD61 protein in membranes from different blood cell fractions. Lanes were loaded with 25 μg of total membrane protein from (left to right): total blood leukocytes (total WC), mononuclear leukocytes, neutrophils, platelets. (A) Anti-P2X1 receptor immunoblot of membrane proteins prepared for electrophoresis under standard reducing conditions. (B) Anti-CD61 immunoblot of samples from the same membrane preparations processed under nonreducing conditions.