LGALS4 and cardiomyopathy: To determine if these specific TER94 mutations affect myofibrillar structure in cardiomyocytes and/or lead to cardiomyopathy, Drosophila containing a UAS-controlled wildtype TER94 (UAS-TER94WT) transgene, or a transgene with the MSP-causing mutations TER94 R152H (UAS-TER94R152H), R188Q (UAS-TER94R188Q), or A229E (UAS-TER94A229E) were crossed with flies harboring the Hand4.2-GAL4 driver.