has AA mutation has characteristic AA mutation An object property that defines a relation between a microbe variant and an AA mutation where the microbe (like SARS_CoV-2) variant has the AA mutation such that the microbe variant has an AA change that is used to identify a mircrobe variant. This is used over AA variant for deletions or nonsense mutations. An AA mutation represents the process of change from a previous AA to a new one. Therefore, instead of using 'has part', we generate this new property to represent the history of AA mutation. 'has AA mutation' is distinct from 'has AA variant' to account for mutations. is characteristic AA mutation of