Table 1

Sequence divergence between homologous X- and Y-linked genes.

Gene pairKSKAKS/KADNA divergence (%) Protein divergence (%) Sequence compared (nucleotides)
Group 4
GYG2/GYG2P * 0.110.06 1.8 7 12 525
ARSD/ARSDP * 0.09 0.07 1.3 7 13 846
ARSE/ARSEP * 0.05 0.04 1.2 4 9615
PRKX/Y 0.07 0.03 2.3 5 81020
STS/STSP * 0.12 0.10 1.2 1118 852
KAL1/KALP * 0.07 0.06 1.26 12 1302
AMELX/Y 0.07 0.07 1.07 12 576
Group 3
TB4X/Y 0.29 0.04 7.3 7 7 135
EIF1AX/Y 0.32 0.01 32 9 2 432
ZFX/Y 0.23 0.04 5.8 7 7 2394
DFFRX/Y 0.33 0.05 6.6 11 9 7671
DBX/Y 0.36 0.04 9.0 12 9 1932
CASK/CASKP * 0.24 0.22 1.1 15 32156
UTX/Y 0.26 0.08 3.3 12 154068
Group 2
UBE1X/Y 0.580.07 8.3 16 13 693
SMCX/Y 0.520.08 6.5 17 15 4623
Group 1
RPS4X/Y 0.97 0.05 19 18 18 792
RBMX/Y 0.94 0.25 3.8 29 38 1188
SOX3/SRY 1.25 0.19 6.6 28 29264
  • * Y copy is pseudogene. DNA and protein divergence refer to uncorrected nucleotide (coding region) and amino acid divergence (nonidentity).