Myofibrillar protein abundance is similar in control and PH mice.

<p><i>A</i>) Images show protein bands corresponding to myosin heavy chain (∼220 kDa) in examples of control and PH mice. MHC data were normalized for total protein measured as optical density of entire lane. Molecular weights were determined from protein standards (not shown). <i>B and C</i>) Images are examples of lanes from membranes probed for sarcomeric actin (<i>B</i>) and troponin T (<i>C</i>) in whole-muscle homogenates. Optical density of actin and troponin T were normalized to α-tubulin in the respective membranes. All bar graphs show mean ± SE of results expressed relative to mean of control (N = 4/group).