Fig. 2. Cross-reactivity between polyclonal antibodies against acrosin I from turkey spermatozoa and purified preparation of acrosins I, II (AI, AII) and sperm protein extracted (Ex) without p-nitrophenyl-p’- guanidine benzoate (NPGB).
weights ranging from 30 to 41 kDa. However, this profile was not consistent. The differences concerned the number of observed bands and intensity of particular bands (esti- mated subjectively; Fig. 3).
Fig. 3. Different profile of sperm protein extracted without p-nitro- phenyl-p’-guanidine benzoate (NPGB) of six individual semen sam- ples after Western blot analysis using polyclonal antibodies against acrosin I from turkey sperm.
Fig. 4. Western blot analysis profiles of sperm extracts after extrac- tion in the presence or absence of inhibitors, p-nitrophenyl-p’- guanidine benzoate (NPGB)—extraction was performed in the pres- ence of NPGB; Before Ex—NPGB was added at the beginning of extraction and was present during all steps; After Ex—NPGB was added after extraction; Control— extraction without inhibitors; Ka- zal—extraction was performed in the presence of Kazal family in- hibitor from turkey seminal plasma