From: The mammary gland-specific marsupial ELP and eutherian CTI share a common ancestral gene
ELP/CTI protein-coding region | dN | SE | dS | SE | dN/dS Ratio | (a) Neutral selection test (dN ≠ dS)+* | (b) Purifying selection test (dN < dS)+* | (c) Positive selection test (dN > dS)+* | |
---|---|---|---|---|---|---|---|---|---|
Precursor protein | Marsupials | 0.145 | 0.022 | 0.190 | 0.033 | 0.763 | 0.256 (NS‡) | 0.117 (NS) | 1.000 (NS) |
 | Eutherians | 0.194 | 0.026 | 0.225 | 0.033 | 0.862 | 0.232 (NS) | 0.472 (NS) | 1.000 (NS) |
Mature protein | Marsupials | 0.166 | 0.026 | 0.185 | 0.036 | 0.897 | 0.653 (NS) | 0.334 (NS) | 1.000 (NS) |
 | Eutherians | 0.186 | 0.028 | 0.242 | 0.039 | 0.786 | 0.273 (NS) | 0.130 (NS) | 1.000 (NS) |
Signal peptide | Marsupials | 0.071 | 0.029 | 0.226 | 0.094 | 0.314 | 0.133 (NS) | 0.064 (NS) | 1.000 (NS) |
 | Eutherians | 0.225 | 0.072 | 0.165 | 0.069 | 1.36 | 0.451 (NS) | 1.000 (NS) | 0.224 (NS) |
N-terminus | Marsupials | 0.240 | 0.064 | 0.116 | 0.048 | 2.07 | 0.064 (NS) | 1.000 (NS) | 0.041* |
 | Eutherians | 0.242 | 0.050 | 0.224 | 0.065 | 1.08 | 0.842 (NS) | 1.000 (NS) | 0.424 (NS) |
BTPI KUNITZ 2 # | Marsupials | 0.146 | 0.031 | 0.224 | 0.052 | 0.651 | 0.215 (NS) | 0.101 (NS) | 1.000 (NS) |
 | Eutherians | 0.162 | 0.035 | 0.243 | 0.054 | 0.667 | 0.200 (NS) | 0.105 (NS) | 1.000 (NS) |
BPTI KUNITZ 1 ~ | Marsupials | 0.095 | 0.030 | 0.223 | 0.098 | 0.426 | 0.212 (NS) | 0.103 (NS) | 1.000 (NS) |
 | Eutherians | 0.066 | 0.026 | 0.264 | 0.110 | 0.250 | 0.122 (NS) | 0.046* | 1.000 (NS) |
Trypsin interaction site ^ | Marsupials | 0.230 | 0.136 | 0.323 | 0.181 | 0.712 | 0.740 (NS) | 0.363 (NS) | 1.000 (NS) |
 | Eutherians | 0.175 | 0.093 | 0.228 | 0.131 | 0.768 | 0.689 (NS) | 0.345 (NS) | 1.000 (NS) |