Skip to main content
. Author manuscript; available in PMC: 2011 Sep 1.
Published in final edited form as: J Mol Cell Cardiol. 2010 May 23;49(3):449–458. doi: 10.1016/j.yjmcc.2010.05.006

Table 1.

Mean ± SEM of passive and active tension (T) in WT and N2B KO myocardium (n=8 per genotype).

SL
(µm)		 passive T
(mN/mm2)		 max act. T
(mN/mm2)		 Δmax T
(%)		 nH pCa50 SL range
(µm)		 ΔpCa50
WT 1.95 ------- 42±2 ------ 2.7±0.06 5.71±0.02 1.95–2.1 0.09±0.01
WT 2.1 0.6±0.1 53±2 125±2 2.9±0.08 5.80±0.01 2.1–2.3 0.06±0.01
WT 2.3 3.5±0.4 60±3 142±3 2.6±0.09 5.86±0.01 1.95–2.3 0.15±0.01
KO 1.95 ------- 44±3 ------ 2.7±0.05 5.76±0.01* 1.95–2.1 0.09±0.01
KO 2.1 1.1±0.02*** 56±4 127±3 2.8±0.07 5.84±0.01* 2.1–2.3 0.10±0.01**
KO 2.3 10.7±0.4*** 63±4 144±5 2.1±0.09** 5.94±0.010*** 1.95–2.3 0.19±0.01***

Asterisks: comparison between KO and corresponding WT data (t-test); ΔMax T: maximal active tension difference from value at SL 1.95 µm; ΔpCa50 values apply to the SL range in the preceding column.