Human leukocyte antigen - Classification - Variability - Common, well-documented and rare alleles

While the current CWD and rare/very rare designations were developed using different datasets and different versions of the IMGT/HLA Database,[17][19] the approximate fraction of alleles at each HLA locus in each category is shown below.

Reference 1: # Common Alleles[19], % Common Alleles[19], # Well-Documented Alleles[19], % Well-Documented Alleles[19], # Rare Alleles[17], % Rare Alleles[17], # Very Rare Alleles[17], % Very Rare Alleles[17] and % Alleles Categorized.

Reference 2: A, B, C, DRB1, DRB3, DRB4, DRB5, DQA1, DQB1, DPA1, DPB1 and All Loci.

Source: http://en.wikipedia.org/wiki/Human_leukocyte_antigen