Journal: eLife
Article Title: A titin missense variant drives atrial electrical remodeling and is associated with atrial fibrillation
doi: 10.7554/eLife.104719
Figure Lengend Snippet: ( A ) Co-immunoprecipitation revealed increased interaction between FHL2 and KCNQ1-KCNE1 (MinK) complex. (IP: KCNE1). Immunoblotting (IB) was performed with antibodies against FHL2 (32 kDa) and MinK (32 kDa) (n=3) ( B ) qPCR data showing the inhibition of FHL2 gene by the siRNA in the WT and TTN -T32756I iPSC-aCMs (n=7). ( C ) I-V curves showing the rescue of the I ks TTN -T32756I iPSC-aCMs by the suppression of FHL2 (n=4–8). ( D ) Comparison of I ks current density at 50 mV (mean ± SEM). ( E ) Schematic showing the TTN -T32756I results in increased FHL2 binding with the KNCQ1-KCNE1 complex and enhanced I ks activity. n.s. p>0.05; *p<0.05; ***p<0.001. Figure 5—source data 1. Source data contains raw images of the immunoblot presented at . Figure 5—source data 2. Source data contains raw images of the immunoblot presented at .
Article Snippet: For the co-localization experiment, anti-FHL2 antibody (Abcam, #ab202584) and anti-KCNE1 antibody (Alomone Labs, #APC-163) were used and the subsequent captured images were analyzed using ImageJ software with the Coloc2 plugin.
Techniques: Immunoprecipitation, Western Blot, Inhibition, Comparison, Binding Assay, Activity Assay