Table 2. Perturbations induced by glutaraldehyde.

Molecules	First residue	Second residue†	Cα—Cα distances‡	N∊—Cζ distances‡
A–A*	LysA19	ArgA59* [3 0 0 0]	13.13/12.49	7.01/3.65
B–B*	LysB19	ArgB59* [2 1 1 −1]	12.67/12.01	8.86/2.84
C–C*	LysC19	ArgC59* [2 0 1 −1]	12.38/12.00	9.49/3.34

^†The operators of the symmetry-related monomers are given in square brackets and follow the usual notation of the P3₂ space group: the symmetry number (1, x, y, z; 2, −y, x − y, 2/3 + z; 3, −x + y, −x, 1/3 + z) is followed by the three translations.

^‡The first value corresponds to native barnase and the second to the cross-linked structure.