passages.id: split_8_test_696_passage
passages.type: progene_text
passages.text: Increasing cytosolic Ca(2+) with ionomycin stimulated HEF1 phosphorylation and preventing any calcitonin - induced change in cytosolic calcium by a combination of BAPTA and extracellular EGTA completely blocked the calcitonin - induced tyrosine phosphorylation of HEF1 .