Table 1.

Compositional properties of genes in different genomic regions and on different strands

Position	Strand	Genes	Mean CAI (Range)	Mean % T* (Range)
Entire	Both	34	0.355	0.484
genome	A	20	0.358	0.518
	B	14	0.352	0.435
0–70 kb	Both	23	0.351	0.475
	A (G+T-rich)	17	0.363	0.555
			(0.242–0.436)	(0.383–0.696)
	B (A+C-rich)	6	0.316	0.248
			(0.246–0.380)	(0.147–0.312)
70–143 kb	Both	11	0.365	0.503
	A (A+C-rich)	2	0.300	0.322
			(0.295–0.305)	(0.281–0.361)
	B (G+T-rich)	9	0.379	0.543
			(0.310–0.509)	(0.458–0.667)

^*T composition at fourfold-degenerate sites.