Table 2.

Summary of the RMSD comparison for the two sides of each palindrome. See text for more details.

	Total number of analyzed palindromes	No. of palindromes with P < 0.05	No. of palindromes with P < 0.01	Average RMSD of palindrome sides (Å)	Ratio of random fragments with smaller RMSD values
Structural alignment of the two sides (backbone atoms)	352	9	0	1.995	0.532
Structural alignment of one side with the mirror image of the two sides (backbone atoms)	352	14	4	2.123	0.527
Structural alignment of the two sides (Cα only)	561	10	0	0.964	0.487
Structural alignment of one side with the mirror image of the two sides (Cα only)	561	13	2	0.967	0.487