We detected floor N on each contaminated cells and non-contaminated neighboring cells24. N, like all N proteins, is highly positively charged, and binding of endogenous N and cell-derived or recombinant N to cells necessitates heparan sulfate/heparin (very negatively charged proteoglycan), as demonstrated because of the abrogation of binding by enzymatic https://angelobeged.ja-blog.com/29686786/rapid-isolation-of-plasmid-dna-an-overview