Figure 4. Sequence analysis of codon 209 of GNAQ. Heterozygous somatic mutations of Q209L and Q209P were identified in MEL20–06–039 and MEL20–06–045 cell lines, respectively. The MEL20–07–070 cell line was wild-type as were blood samples from the patients MEL20–06–039 and MEL20–07–070. No blood sample was available from patient MEL20–06–045.