Alu Ya5a2 (NF1)-Associated Human Genomic Diversity
| Ya5a2 elements | Accession no. (duplicates) | Position | Allele frequency[i] |
| Ya5NBC206 | AC004057 | 76767–77048 | fixed present |
| Ya5NBC207 | AL118555 (AL132992) | 9981–9700 (40728–41009) | fixed present |
| Ya5NBC208 | AL109919 | 70170–69889 | intermediate |
| Ya5NBC220 | AC007611 | 136715–136434 | intermediate |
| Ya5NBC240 | AC133410 (AL135841) | 34800–35081 (49829–49548) | intermediate |
| Ya5NBC241 | AC018924 | 144017–144298 | intermediate |
| Ya5NBC242 | AC009517 | 161301–161582 | intermediate |
| Ya5NBC7 | AC004848 | 24522–24241 | low |
| Ya5NBC205 | AL011328 | 204488–204207 | low |
| Ya5NBC209 | AC00808 | 147056–146775 | low |
| Ya5NBC239 | AL133284 | 115867–115586 | low |
| Ya5NBC244 | AC026839 | 64885–64604 | low |
| Ya5NBC243 | AJ011929 | 151192–151473 | low |
| Ya5NBC235[ii] | AQ748733 | 458–739 | fixed present |
| Ya5NBC237[iii] | AL031274 | 33175–33501 | intermediate |
[i] Allele frequency was classified as fixed present, fixed absent, low, intermediate, or high frequency insertion polymorphism. (Fixed present) every individual tested had the Alu element in both chromosomes; (low frequency insertion polymorphism) the absence of the element from all individuals tested, except for one or two homozygous or heterozygous individuals; (intermediate frequency insertion polymorphism) the Alu element is variable as to its presence or absence in at least one population; (high frequency insertion polymorphism) the element is present in all individuals in the populations tested, except for one or two heterozygous or absent individuals.
[ii] Several Ns.
[iii] Ya5NBC237 is the exact match to the FGFR2 Alu insertion.