We detected area N on the two contaminated cells and non-infected neighboring cells24. N, like all N proteins, is highly positively charged, and binding of endogenous N and cell-derived or recombinant N to cells involves heparan sulfate/heparin (highly negatively charged proteoglycan), as proven by the abrogation of binding by enzymatic https://emilioqronl.blazingblog.com/29708693/how-much-you-need-to-expect-you-ll-pay-for-a-good-magnetic-beads-for-dna-purification