MET and head and neck squamous cell carcinoma: In a study that examined protein activity patterns of malignant and healthy HNSCC tissues, the stimulatory tyrosines Y1235, Y1234, Y1230, and Y1003 of p-Met were found in 66% of malignant tumors, consistent with total c-Met transcription in 79% of malignant tumors (Faiella et al., 2022).