Table 2.

RMSD values of the histones in the NCP

	Chain ID	RMSD of the histones in the NCP
H2A	Chain C*	1.95
	Chain G	1.80
H2B	Chain D*	1.73
	Chain H	1.91
H3	Chain A	1.58
	Chain E*	1.55
H4	Chain B	1.59
	Chain F*	1.35

The RMSD values were calculated from the distances between the α-carbons of the G. lamblia histones and the corresponding α-carbons of the human histones (PDB ID: 6R93) between the aligned G. lamblia and human NCPs, using the PyMOL software. Chains A–H correspond to the chains in the NCP structures deposited in the PDB (PDB IDs: 7D69 and 6R93). *The histone structures in the NCPs are shown in Figure 2.