Table 2.

Correlation ( r ) between nine gene compositional features and gene body-methylation

Variable	Short name	R
GC3	GC3	−0.673
Gene expression: mean (μ)	GE_MEAN	0.255
Standard deviation (σ)	GE_STDEV	0.084
CV of expression ($\frac{\sigma }{\mu }$)	GE_CV	−0.217
Genome signature (ρ= $\frac{f_{\mathit{CG}}}{f_C{f}_G}$)	GEN_SIG	−0.697
CDS length	l	0.286
Change in CG3 from the left to the middle of the gene	GRADLM	0.269
Change in CG3 from the middle to the of the right gene	GRADMR	−0.289
CG3 in the left third of the coding sequence (CDS)	GCL	−0.364
CG3 in the middle third of CDS	GCM	−0.545
CG3 in the right third of CDS	GCR	−0.343