Fig. 5From: Odorant Receptors and Desensitization Proteins Colocalize in Mammalian SpermIndirect immunofluorescent staining of mature rat sperm with GRK3 and β-arrestin2 antibodiesAntibodies to β-arrestin2 (1:50) (A) and GRK3 (1:50) (B) stain the midpiece (MP) of cauda sperm. Staining with both antibodies is most intense at the proximal midpiece (arrowheads); 1000×.Back to article page