Methods and compositions relating to muscle selective calcineurin interacting protein (mcip)

Abstract From the Canadian patent

The present invention relates to the polypeptides known as muscle calcineurin interacting proteins (MCIPs). These molecules binding to calcineurin and in , so doing, modulate its functions, which includes phosphate removal as part of a pathway coupling Ca2+ to cellular responses in muscle. MCIPs form a physical complex with the catalytic subunit of calcineurin and increased levels of , MCIPs correspond to a reduced ability of calcineurin to stimulate transcription of certain target genes. Methods to exploit these observations are provided and include screening for modulators of MCIP expression and binding to calcineurin, methods of diagnosis of MCIP defects and methods for , treating …