We were not able to parse, find, or, register allele using XP_011509920.1:p.[Asn850_Leu858del;Val861_Val872delinsSerArg;Met874_Lys879delinsSerArg] HGVS expression or CA Identifier.

The following information might be helpful to understand the reason.

Type of the error: ProteinVariantTooLong

Explanation: ProteinVariantTooLong