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Immunofluorescence detection of pCABS1 protein in cauda epididymal sperm. (A–C) The localization of pCABS1 in the cauda epididymal sperm was detected in the sperm tail and acrosome as indicated by arrows. (D–F) negative control obtained with neutralized anti-pCABS1 antiserum. Nuclear stainings by Hoechst are shown as blue (B and E). Scale bars: 5 µm.
