. Author manuscript; available in PMC: 2009 Feb 5.

Published in final edited form as: J Mol Biol. 2008 Jun 24;382(1):56–73. doi: 10.1016/j.jmb.2008.06.047

Table 4.

Interhelical angles and distances

	Interhelical angle (°)								Interhelical distance (Å)
	I to II	I to III	I to IV	II to III	II to IV	III to IV	I to I′	IV to IV′	I to I′	IV to IV′
Ca²⁺-S100B^a,^b	140	−121	125	99	−32	110	−152	150	13.7	10.0
Zn²⁺,Ca²⁺-S100B^a	142	−120	126	97	−32	110	−151	148	13.7	10.2
Pnt-Ca²⁺-S100B^a	139	−121	125	99	−32	109	−152	146	13.6	10.1
Pnt-Zn²⁺,Ca²⁺-S100B^a	139	−122	125	98	−32	109	−151	146	13.6	10.0

Interhelical angles were calculated using INTERHLX software (K. Yap, University of Toronto) except for I to I′ and IV to IV′ where the interhelical angles and distances were determined using IHA v1.4 (S.M. Gagne, SMG Software Inc.).

The residues defining each helix of S100B were as follows: helix I, residues 2–18; helix II, residues 29–40; helix III, residues 50–62; and helix IV, residues 70–82.

Calculated using PDB entry 1MHO.