Voltage-dependent anion channels (VDAC) on human sperm membrane / 中华男科学杂志

ABSTRACT

<p><b>OBJECTIVE</b>To further study gene expression and characterization of voltage-dependent anion channels (VDACs) on human spermatozoa.</p><p><b>METHODS</b>VDACs were cloned by PCR from the testis cDNA library. Recombinant human sperm VDACs were produced in E. coli system by molecular cloning technology. Sperm membrane protein was extracted by 1% Triton X-100 and separated by chloroform/methanol.</p><p><b>RESULTS</b>The gene expression of VDACs was found in the human testis cDNA library and VDAC protein was detected located on the sperm membrane by alpha-helix.</p><p><b>CONCLUSION</b>VDAC proteins, abundant on the human sperm membrane and responsible for anion transportation, play an important role in sperm signaling transduction and fertility.</p>