As spermatozoa progress through the epididymis they first acquire the capacity to phosphorylate tyrosine on targets on the principal piece, followed by the midpiece. 精子進(jìn)入附睪后，它首先獲得將精子主段以及中段上的目的蛋白的酪氨酸磷酸化的能力。
These observations suggest that the mutated tyrosine phosphatases are tumor suppressor genes, regulating cellular pathways that may be amenable to therapeutic intervention. 這些觀(guān)察提示突變的酪氨酸磷酸酶是腫瘤抑制基因，它調節的細胞通路可能會(huì )被利用到治療干預中去。
