Abundance of perfect and imperfect trinucleotide repeats in human chromosome 3

ALLCODINGINTRONINTERGENIC
perfectimperfectperfectimperfectperfectimperfectperfectimperfect
TLTNLPMbNPMbTLTNLPMbNPMbTLTNLPMbNPMbTLTNLPMbNPMbTLTNLPMbNPMbTLTNLPMbNPMbTLTNLPMbNPMbTLTNLPMbNPMb
aac 37413 2434191.7912.48 56154 2381287.8612.21 24 212.521.04 42 221.901.04 12663 827188.3112.30 19134 804284.5511.96 21234 1376168.6410.93 31705 1351251.8010.73
aag 11403 72558.453.72 25198 628129.173.22 351 27183.0614.08 448 27233.6514.08 3174 20947.203.11 5593 19083.172.83 7035 43455.873.45 17202 365136.622.90
aat 58914 3798302.0119.47 87059 3700446.2918.97 12 16.260.52 12 16.260.52 19971 1287296.9919.14 29389 1259437.0518.72 33918 2193269.3817.42 50267 2133399.2216.94
acc 9519 70448.803.61 23492 625120.433.20 225 18117.349.39 310 18161.689.39 4005 28959.564.30 11440 249170.133.70 4392 33034.882.62 8817 30170.032.39
acg 42 30.210.01 57 30.290.01 30 215.651.04 30 215.651.04 12 10.180.01 27 10.400.01 0 00.000.00 0 00.000.00
act 2268 16711.630.86 3818 15119.570.77 12 16.260.52 12 16.260.52 885 6313.160.94 1687 5425.090.80 1224 929.720.73 1918 8515.230.68
agc 7611 55639.022.85 10678 55254.742.83 732 51381.7626.60 1739 49906.9425.55 2481 17836.902.65 3271 17748.642.63 3540 26328.112.09 4408 26235.012.08
agg 12225 91562.674.69 27935 795143.204.08 759 55395.8428.68 1565 51816.2026.60 4308 32764.064.86 9435 283140.314.21 5742 43045.603.42 13721 371108.972.95
atc 8277 55642.432.85 13475 52969.082.71 192 15100.137.82 345 15179.937.82 3201 21147.603.14 4917 20273.123.00 4143 28132.902.23 7074 26556.182.10
ccg 2850 19914.611.02 7565 18238.780.93 474 33247.2117.21 1257 30655.5715.65 453 326.740.48 1334 3119.840.46 1191 829.460.65 3283 7126.070.56
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 megabase0.8571.94456 / 10 acg, act, agc, ccg
number per megabase1.0000.11267 / 10 acg, act, ccg
Coding regions
length per megabase0.7532.65756 / 10 aac, aat, acg, act
number per megabase1.0000.06556 / 10 aac, aat, acg, act
Introns
length per megabase0.7892.41756 / 10 acg, act, agc, ccg
number per megabase1.0000.11567 / 10 acg, act, ccg
Intergenic regions
length per megabase0.8581.93756 / 10 acg, act, agc, ccg
number per megabase1.0000.13056 / 10 acg, act, agc, ccg