Table 4.

Interhelical Angles and Distances in S100A4^a

	interhelical angle (deg)								interhelical distance (Å)
	1–2	1–3	1–4	2–3	2–4	3–4	1–1′	4–4′	1–1′	4–4′
Ca2+-S100A4	139 ± 1	−118 ± 2	130 ± 2	102 ± 2	−32 ± 2	107 ± 2	−151 ± 1	145 ± 1	13.9 ± 0.5	10.1 ± 0.5
apo-S100A4b	119 ± 2	−55 ± 4	120 ± 2	151 ± 4f	−45 ± 3	162 ± 4	−152 ± 4	153 ± 4	n/a	n/a
Ca2+-S100A1c	132 ± 1	−102 ± 2	131 ± 2	125 ± 2	−29 ± 1	121 ± 2	−157 ± 3	152 ± 3	12.5 ± 0.2	11.1 ± 0.4
apo-S100A1d	120 ± 3	−45 ± 2	107 ± 2	148 ± 2	−46 ± 1	−150 ± 1	−165 ± 3	176 ± 2	n/a	n/a
calbindine	129 ± 1	−116 ± 2	123 ± 2	111 ± 2	−31 ± 1	118 ± 2	n/a	n/a	n/a	n/a

^aThe helices in S100A4 are defined as follows: helix 1, Pro4-Ser20; helix 2, Lys31-Glu41; helix 3, Glu52-Leu62; helix 4, Phe72-Glu88.

^bFrom ref 23.

^cFrom ref 35.

^dFrom ref 77.

^eFrom ref 108.

^fIn the orginal report (23), the interhelical angle for helices 2 and 3 in apo-S100A4 was mistakenly reported as a negative value.