Table 1. Natural variation at position 45 in KIR.
| KIR lineage | KIR | Pos. 45 | ||
|---|---|---|---|---|
| KIR3DL | Hominoids | LIII | Common; all species | F |
| LIII | 2DS2 | Y | ||
| LIII | Pt-2DL9 | C | ||
| LIII | Gg-2DLe | V | ||
| LII/IIIa | Pt-3DL1/2b, Pp-3DLa, Gg-3DLa | V | ||
| LII | Human, chimpanzeeb, bonobob, orangutan, gibbons | S | ||
| LV | Human, chimpanzee, gorilla, orangutan, gibbons | T | ||
|
| ||||
| Old World monkeys | LII, LIII | Macaque, Sabeus | F | |
| LII | Cs-3DL3, Cs-3DS4c | L | ||
| LIII | Cs-1Dd | L | ||
| LV | T | |||
|
| ||||
| New World monkeys | S, T, A, D, N | |||
|
| ||||
| Horse | M | |||
| Mouse, rat | I, L | |||
|
| ||||
| KIR3DX | Human, chimpanzee | I | ||
| Macaque, cattle | T | |||
a
lineage II and III recombinant sequences
b
except recombinant sequences
c
originally named Cs-3DH4
d
some alleles have F