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Table 3 GC and AT-skew indices

From: Next generation sequencing and comparative analyses of Xenopus mitogenomes

 

Mean A + T

AT

Mean C + G

GC

 

(%)

skew

(%)

skew

XL

62.4

−0.01

37.6

−0.32

ST

56.2

0.01

43.8

−0.37

XB

62.7

−0.06

37.3

−0.25

XV

61.3

−0.02

38.7

−0.35

ALL

60.7

−0.02

39.3

−0.32

SD

3.4

−0.3

3.6

−0.6

  1. Percentage mean ± standard deviation (SD) base-pairs in xenopus H-strand protein-coding genes. Skew (or “asymmetry”) between base-pairs was calculated as follows: GC skew = (G – C)/total(GC) and AT skew = (A – T)/total(AT).