Figure 7
Ropporin can be co-immunoprecipitated with CABYR. 2-D silver stained gels after immunoprecipitating mouse sperm protein extracts with guinea pig anti-CABYR-A polyclonal antibody (A) or pre-immune serum (B) to identify possible CABYR binding partners. A silver stained spot present in A but absent in B was cored from gels and microsequenced by mass spectrometry, yielding peptides from mouse ropporin (accession number NP_109669).