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Immunolocalization of fertilin on epididymal spermatozoa. Sperm from caput (A, B and C) and cauda (D and E) epididymis were incubated with the anti-ADAM-1 C-terminal polyclonal antibody and its localization was revealed with a secondary fluorescent conjugated antibody. Sperm were from the same animal and the observations were done at × 630 (A and B) and at × 1000 (C, D and E).
