Variants Table
VID : variant ID.
Chrom : chromosome name.
Pos : the 1-based position of the variation on the given sequence..
Alleles : REF(reference base or bases in the case of an indel) - ALT(alternative alleles).
Gene : gene symbol.
ncell_cover :number of cells with read count at this position.
ncell_alt: number of cells with variant read count only.
ncell_ref: number of cells with reference read count only.
ncell_ref_and_alt: number of cells with both variant and reference read count.
mRNA : A standard nomenclature is used in specifying the sequence changes.
Protein : A standard nomenclature is used in specifying the sequence changes.
COSMIC : COSMIC annotation.