Fig. 1.

Tssk6-null sperm have morphological defects. (A) DIC-microscopy images of Tssk6-null cauda epididymal sperm. The images show morphological defects that include neck defects that cause sperm heads to point in the wrong direction (Neck), detached heads (Heads), annular hairpins (Hairpin) and a combination of reversed heads and hairpins (Hairpin+Neck). A total of 13% of the sperm have normal morphology (Normal). (B) Quantification of morphological anomalies of Tssk6-null mice sperm. (C) Quantification of control WT sperm morphology, expressed as percentage of the average ± s.d. (200 sperm were counted per experiment; n=6).