gnomAD: expanding multi-allelic variants in VCF (Part 2)

VCF Playground - Level 2 Following my previous post on GC elements' order, I'm now going to present an empirical proof of this convention! As a reminder, the inferred order of elements within a GC field is: GC=AA, AB,BB, AC,BC,CC, AD,BD,CD,DD, AE,BE,CE,DE,EE, ... (1) Notation used: Reference Allele: A Alternative Alleles: B, C, D, ... (in order of appearance in the VCF …

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gnomAD: expanding multi-allelic variants in VCF (Part 1)

VCF playground - Level 1 TLDR; Order of elements in GC field of gnomAD VCF for multi-allelic entries: GC = AA, AB, BB, AC, BC, CC, AD, BD, CD, DD, AE, BE, CE, DE, EE, ... Ref. allele: A Alt. alleles: B, C, D, ... Ever tried to make sense of the infamous VCF format? …