Polypoid melanoma: An aggressive variant of nodular melanoma

Journal
Biochemical genetics
ISSN
0006-2928
Date Issued
2018
Author(s)
Pérez-Wilson, Jaime
Arellano, Javier
Type
Resource Types::text::letter
URL
Abstract
Genetic evidence for a trimeric structure for purine nucleoside phosphorylase in the brook lamprey is presented. This enzyme is encoded by a single locus with two alleles segregating at frequencies of 0.98 and 0.02 in a Welsh population. It is suggested that this enzyme is likely to be a trimer in all classes of vertebrates.