154G→A Ts Exon 1 52 GAG E E52K
A study of 103 patients with VHL retinal manifestations and 108 patients without VHL retinal manifestations extracted from the French VHL database revealed that the number of hemangioblastomas appeared higher in patients who had a substitution when compared with patients with a truncated protein. Detected by PCR and SSCP, the missense mutation (E52K (c.154G>A)) was found in a single patient with no VHL retinal manifestation.