Abundance of perfect and imperfect trinucleotide repeats in human chromosome 7

ALLCODINGINTRONINTERGENIC
perfectimperfectperfectimperfectperfectimperfectperfectimperfect
TLTNLPMbNPMbTLTNLPMbNPMbTLTNLPMbNPMbTLTNLPMbNPMbTLTNLPMbNPMbTLTNLPMbNPMbTLTNLPMbNPMbTLTNLPMbNPMb
aac 30192 1938194.5912.49 43728 1893281.8312.20 24 214.591.22 27 216.411.22 11760 748203.2012.93 16759 727289.5812.56 16350 1061170.9511.09 23971 1037250.6410.84
aag 10305 63566.424.09 24999 505161.123.25 267 22162.2913.37 576 22350.1213.37 3321 20857.383.59 7964 170137.612.94 6117 36363.963.79 14841 274155.182.87
aat 47286 3004304.7619.36 68588 2918442.0518.81 36 221.881.22 39 223.711.22 16719 1067288.8918.44 23619 1038408.1117.94 27504 1747287.5818.27 40727 1693425.8317.70
acc 7755 55649.983.58 20890 461134.642.97 147 889.354.86 356 8216.394.86 2871 20449.613.52 8465 175146.273.02 4206 30843.983.22 10713 245112.012.56
acg 24 20.150.01 24 20.150.01 12 17.290.61 12 17.290.61 12 10.210.02 12 10.210.02 0 00.000.00 0 00.000.00
act 1479 989.530.63 2159 9413.910.61 0 00.000.00 0 00.000.00 771 5013.320.86 1113 4819.230.83 651 446.810.46 932 429.740.44
agc 6366 46741.033.01 8717 45256.182.91 804 57488.7134.65 1681 451021.7827.35 2289 17139.552.96 2850 16949.242.92 2625 19627.452.05 3266 19534.152.04
agg 14394 107292.776.91 37275 778240.245.01 510 36310.0021.88 1083 33658.2920.06 4953 37585.586.48 11977 304206.955.25 6615 48869.175.10 18579 363194.263.79
atc 7278 49646.913.20 20341 441131.102.84 141 1185.716.69 214 11130.086.69 2739 18247.333.15 7250 172125.272.97 3939 27141.192.83 11248 233117.612.44
ccg 3444 22522.201.45 9892 19863.751.28 714 51434.0031.00 2202 451338.4727.35 444 307.670.52 1379 2523.830.43 1521 9315.900.97 4670 7948.830.83
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 less than 5% of the total were excluded and all data sets were normalized to 100%

FeatureProbabilityChiSquareDegrees of freedomused / all data pointsExcluded repeats
All sequences
length per megabase0.5304.13656 / 10 acg, act, agc, ccg
number per megabase0.9970.54867 / 10 acg, act, ccg
Coding regions
length per megabase0.8211.53145 / 10 aac, aat, acg, act, atc
number per megabase0.9860.35945 / 10 aac, aat, acc, acg, act
Introns
length per megabase0.5094.28656 / 10 acg, act, agc, ccg
number per megabase1.0000.26267 / 10 acg, act, ccg
Intergenic regions
length per megabase0.5324.12256 / 10 acg, act, agc, ccg
number per megabase0.9890.57056 / 10 acg, act, agc, ccg