Abundance of perfect and imperfect trinucleotide repeats in human chromosome 2

ALLCODINGINTRONINTERGENIC
perfectimperfectperfectimperfectperfectimperfectperfectimperfect
TLTNLPMbNPMbTLTNLPMbNPMbTLTNLPMbNPMbTLTNLPMbNPMbTLTNLPMbNPMbTLTNLPMbNPMbTLTNLPMbNPMbTLTNLPMbNPMb
aac 45333 2938190.2012.33 67827 2871284.5712.04 60 523.982.00 66 526.372.00 14430 919190.8612.16 21442 898283.6111.88 27675 1808172.7111.28 41650 1765259.9211.02
aag 15234 92963.913.90 30638 791128.543.32 402 32160.6312.79 623 31248.9412.39 3963 24552.423.24 8033 202106.252.67 10191 61163.603.81 20838 519130.043.24
aat 68271 4438286.4318.62 100746 4325422.6818.15 12 14.790.40 12 14.790.40 21567 1365285.2618.05 31075 1324411.0317.51 42990 2835268.2817.69 64065 2769399.8017.28
acc 12207 83051.223.48 27155 704113.932.95 246 1898.307.19 463 16185.006.39 3738 26649.443.52 9424 230124.653.04 7539 49847.053.11 16200 420101.102.62
acg 105 60.440.03 132 60.550.03 39 215.580.80 45 217.980.80 66 40.870.05 87 41.150.05 0 00.000.00 0 00.000.00
act 2706 18711.350.79 5181 17521.740.73 0 00.000.00 0 00.000.00 1161 7815.361.03 2632 7134.810.94 1449 1019.040.63 2290 9814.290.61
agc 10596 76644.463.21 14168 75659.443.17 1143 81456.7132.37 2133 79852.2931.57 2958 21739.122.87 3666 21748.492.87 5472 39834.152.48 7036 39243.912.45
agg 17019 126371.405.30 36414 1105152.784.64 615 45245.7417.98 1429 42570.9916.78 4635 34561.314.56 8979 310118.764.10 10236 76963.884.80 22975 658143.384.11
atc 11895 74549.913.13 23721 67199.522.81 243 1997.107.59 459 19183.417.59 3636 22948.093.03 6386 21484.472.83 6846 42842.722.67 13864 38986.522.43
ccg 6078 37025.501.55 15629 29365.571.23 783 52312.8720.78 2350 42939.0016.78 570 387.540.50 1302 3417.220.45 2865 17317.881.08 7580 13747.300.85
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 megabase0.9241.40756 / 10 acg, act, agc, ccg
number per megabase1.0000.15467 / 10 acg, act, ccg
Coding regions
length per megabase0.7782.48756 / 10 aac, aat, acg, act
number per megabase0.9980.27256 / 10 aac, aat, acg, act
Introns
length per megabase0.9001.61356 / 10 acg, act, agc, ccg
number per megabase1.0000.13767 / 10 acg, act, ccg
Intergenic regions
length per megabase0.9191.45156 / 10 acg, act, agc, ccg
number per megabase1.0000.17867 / 10 acg, act, ccg