Figure 2
MEN2 mutations in the RET receptor tyrosine kinase. Schematic diagram showing locations of the common RET mutations identified
in MEN2 patients. The two mutations associated with MEN2B are indicated in red. Two sequence variants suggested to act as
modifiers, either affecting severity of other RET mutations or as risk-associated alleles in other cancers, are indicted in
blue. RET protein domains indicated are CLD, cadherin-like domains; CRD, cysteine-rich domain; KD, kinase domain; TM, transmembrane
domain.