Table II.

Comparison of Dm-NCP147 and Xla-NCP147 Structures

	RMSD (Å)a			Seq. identity (%)b
	All structured residues	Excluding terminic	Terminal res. excludedd	Overall/structured
H2A	0.36 (0.65)	0.33 (0.64)	118–119	88.7/91.6
H2A′	0.67 (1.18)	0.35 (0.84)	12–13
H2B	0.48 (1.02)	0.28 (0.88)	28–29	82.7/93.6
H2B′	0.49 (0.77)	0.33 (0.68)	29–29
H3	0.15 (0.64)	0.15 (0.64)	––	99.2/99.0
H3′	0.26 (0.65)	0.17 (0.58)	135
H4	0.78 (0.95)	0.15 (0.43)	23–24, 102	99.0/100
H4′	0.93 (1.72)	0.18 (0.57)	15–19
Histone octamer	0.58 (1.00)	0.30 (0.70)	All above
DNA	0.37 (0.34)
NCP	0.54 (0.83)	0.32 (0.59)	All above

^aRMSD values for the backbone Cα and DNA phosphate atoms; values in parentheses are for all atoms including side chains.

^bPercent sequence identity between Drosophila and Xenopus histones for all residues, and for residues present in the crystallographic model.

^cRMSD values in which structurally most divergent N- and/or C-terminal residues are excluded from the alignment.

^dN- and/or C-terminal residues excluded from the alignment.