| Description |
MuRF1 (Muscle-specific RING-finger protein 1) is a RING-finger E3 ligase found in striated muscle (heart and skeletal) and iris tissues. The protein contains both RING and B-box zinc fingers, and a coiled-coil tripartite fold known as TRIM. MuRF1 ligase activity regulates the proteasomal degradation of cardiac troponin 1 and other sarcomeric-associated proteins. This kit is designed for in vitro MuRF1-mediated ubiquitination of user-supplied substrates such as cardiac troponin 1, MYH7, or muscle creatine kinase. Ubiquitinated proteins can be used in downstream applications, or analyzed by Western blot using antibodies specific for the target protein. A control substrate, S5a (SP-400) and detection antibody (AF5540) are included in the kit.
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