. 2012 Mar 21;102(6):1418–1426. doi: 10.1016/j.bpj.2012.02.010

Table 2.

Orientation of BR probes on the D and E helices of smRLC and skRLC

	Relaxed		Active		Rigor
	θ_ME	σ_ME	θ_ME	σ_ME	θ_ME	σ_ME
smRLC-D	59.6 ± 0.2	22.0 ± 0.4	59.0 ± 0.5	21.4 ± 0.6	60.6 ± 0.2	18.9 ± 0.3
skRLC-D	57.0 ± 0.1^∗	20.9 ± 0.1^†	56.6 ± 0.2^∗	20.9 ± 0.1^†	59.0 ± 0.1^∗	18.8 ± 0.2^†
smRLC-E	59.4 ± 0.2	19.6 ± 0.2	57.9 ± 0.1	20.5 ± 0.4	62.3 ± 0.3	18.0 ± 0.3
skRLC-E	59.0 ± 0.2^†	22.1 ± 0.2^∗	57.1 ± 0.2^∗	22.9 ± 0.2^∗	66.6 ± 0.6^∗	18.8 ± 0.4^†

θ_ME and σ_ME are the mean and standard deviation of a one-dimensional ME distribution calculated from the 〈P₂〉 and 〈P₄〉 values for each probe. Data are means (± SE) in degrees for; 10 fibers, BR-smRLC-D; 4–5 fibers, BR-skRLC-D; 7 fibers, BR-smRLC-E; and 4 fibers, BR-skRLC-E. Statistical significance of differences between values for skRLC and smRLC was assessed using the t-test: ^∗P < 0.05; ^†P > 0.05.