Translate alternative start to M, also in variant
In case of an alternative start codon, the variant CDS was not
translated to a protein starting with M. This caused the protein
description machinery to conclude a variant affecting the start
codon, hence reporting p.?
.
We fix this by always translating the start codon to M (except when the variant actually affects it).
Example: NM_024426.4:c.1107A>G
(a synomymous mutation) should
yield NM_024426.4(WT1_i001):p.(=)
, not p.?
. The start codon
for that protein is CTG
.