I have made several attempts here to estimate the number of somatic mutations: 3,93 mutations / Mb(2007), the long fuse (2007), about the cancer the legacy (2010) or 1/day in the life of a mutation (2010) but the best summary now comes from the 1000 genomes
From the two trios, we directly estimate the rate of de novo germline base substitution mutations to be approximately 10^-8 per base pair per generation.
along with the fact that
on average, each person is found to carry approximately 250 to 300 loss-of-function variants in annotated genes and 50 to 100 variants previously implicated in inherited disorders.
which raises some doubts that these 50 to 100 have only been implicated but not proven…