Ethylene receptor protein quantification in Solanum lycopersicum

Ethylene receptor protein quantification is essential to study their functions, but is impaired by low resolutive tools such as antibodies that are mostly nonspecific. Here we report a proteomic method that enables the quantification of all tomato ethylene receptors, which can be applied to other organisms. Testing this method, we found that “Never-Ripe” tomatoes stay orange while a mutated receptor accumulated at ripening, further blocking the ethylene signal .