referenceBases

Term	Description	Type	Properties	Example	Enum
referenceBases	Reference bases for this variant (starting from start). * Accepted values: IUPAC codes for nucleotides (e.g. https://www.bioinformatics.org/sms/iupac.html). * N is a wildcard, that denotes the position of any base, and can be used as a standalone base of any type or within a partially known sequence. an empty value* is used in the case of insertions with the maximally trimmed, inserted sequence being indicated in AlternateBases.	string	NA	A, T, N, , ACG	NA