physiological function |
interaction of myosin phosphatase target subunit (MYPT1) and myosin phosphatase-RhoA interacting protein (MRIP) causes colocalization of myosin phosphatase and RhoA to actomyosin. The residues 724-837 of MRIP are sufficient for the MYPT1/MRIP interaction. MRIP binds to MYPT1 as either a monomer or a dimer. The leucine repeat region of MYPT1, LR (residues 991-1030) is sufficient to account for the MYPT1/MRIP interaction. Point mutations that replace glutamic acids 998-1000 within LR reduce the binding affinity toward MRIP |
Homo sapiens |