Detailed Instructions: In this task, you are given a sentence. You are expected to recognize the name of gene or protein. Although there might be several correct answers, you need to write one of them.
Problem: Extracellular protein kinase A as a cancer biomarker : its expression by tumor cells and reversal by a myristate - lacking Calpha and RIIbeta subunit overexpression .
Solution:
protein kinase A