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.

 Unestablished quail myoblasts were infected with a retroviral vector encoding the oncogenic form of H - Ras in order to investigate the mechanism by which this oncoprotein interferes with terminal differentiation .
H - Ras

 PtdIns ( 4 , 5 ) P2 synthesis , on the other hand , is only moderately affected even in fab1Delta mutants .
fab1Delta mutants

 Treatment of excessive bleeding after cardiopulmonary bypass was based on an algorithm using point - of - care testing with whole blood prothrombin time , activated partial thromboplastin time , heparinase activated clotting time , and platelet count .

blood prothrombin