Abundance of perfect and imperfect trinucleotide repeats in chimpanzee chromosome 21

ALLCODINGINTRONINTERGENIC
perfectimperfectperfectimperfectperfectimperfectperfectimperfect
TLTNLPMbNPMbTLTNLPMbNPMbTLTNLPMbNPMbTLTNLPMbNPMbTLTNLPMbNPMbTLTNLPMbNPMbTLTNLPMbNPMbTLTNLPMbNPMb
aac 6240 406175.0211.39 9512 396266.8011.11 0 00.000.00 0 00.000.00 1557 99173.3811.02 2411 97268.4910.80 4395 288166.9710.94 6727 281255.5710.68
aag 1797 12650.403.53 4038 113113.263.17 12 134.152.85 12 134.152.85 345 2638.422.90 591 2665.812.90 1404 9653.343.65 3360 83127.653.15
aat 8097 542227.1115.20 12359 526346.6514.75 0 00.000.00 0 00.000.00 1809 117201.4513.03 2558 115284.8612.81 5886 397223.6215.08 9195 384349.3314.59
acc 1344 9437.702.64 2152 8560.362.38 75 4213.4411.38 105 4298.8111.38 360 2840.093.12 558 2762.143.01 888 6133.742.32 1468 5355.772.01
acg000.000.00000.000.00000.000.00000.000.00000.000.00000.000.00000.000.00000.000.00
act 300 228.410.62 763 2221.400.62 0 00.000.00 0 00.000.00 12 11.340.11 12 11.340.11 264 1910.030.72 680 1925.830.72
agc 1323 10237.112.86 1689 10247.372.86 147 11418.3431.30 305 11867.9831.30 321 2535.752.78 399 2544.432.78 828 6431.462.43 958 6436.402.43
agg 1839 14151.583.96 4422 131124.033.67 27 276.845.69 63 2179.295.69 570 4463.474.90 1036 40115.374.45 1146 8843.543.34 3198 82121.503.12
atc 1158 8332.482.33 1735 7848.662.19 12 134.152.85 12 134.152.85 264 1829.402.00 410 1645.661.78 819 5931.112.24 1223 5646.462.13
ccg 393 2811.020.79 928 2726.030.76 63 5179.2914.23 145 4412.6511.38 90 710.020.78 229 725.500.78 195 147.410.53 485 1418.430.53
TL: total length of repeats in class; TN: total number of repeats in class;
LPMb: length per megabase of repeats in class; NPMb: number of repeats in class per megabase

Statistical analysis (contingency test results)

Data points with the smallest value were exluded iteratively until all remaining data contributes more than 5% of the total. Data sets were normalized to 100%

FeatureProbabilityChiSquareDegrees of freedomused / all data pointsExcluded repeats
All sequences
length per megabase0.9171.47056 / 9 act, agc, ccg
number per megabase1.0000.04767 / 9 act, ccg
Coding regions
length per megabase0.6521.63434 / 9 aac, aag, aat, act, atc
number per megabase0.9380.41034 / 9 aac, aag, aat, act, atc
Introns
length per megabase0.9980.44767 / 9 act, ccg
number per megabase1.0000.03756 / 9 act, atc, ccg
Intergenic regions
length per megabase0.6872.26445 / 9 act, agc, atc, ccg
number per megabase1.0000.08667 / 9 act, ccg