Human NF-M has 13 of these KSP sites, while human NF-H is expressed from two alleles one of which produces 44 and the other 45 KSP repeats.
A NF-M humana ten 13 destes sitios KSP, e a NF-H humana exprésase a partir de dous alelos un dos cales produce 44 repeticións KSP e outro 45.