There is a small but significant typo in the summary info on the HLA Completion tool. Where it states:
"For example, an allele may be identified as A6801/6802 or simply
This should actually be A28, as A*6801 and A*6802 are both alleles of A28 not A02 (even though A02 is closely related in sequence and reactivity).
HLA Bioinformatics Specialist
National Blood Service, England