Arthrogryposis, Distal, Type 2b2, also known as da2b2, is related to nemaline myopathy 5a and cardiomyopathy, dilated, 1ff. An important gene associated with Arthrogryposis, Distal, Type 2b2 is TNNT3 (Troponin T3, Fast Skeletal Type), and among its related pathways/superpathways are Cardiac conduction and Striated muscle contraction pathway. Affiliated tissues include skeletal muscle, and related phenotypes are talipes equinovarus and narrow mouth