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.

 This study investigated expression of the SART3 antigen in breast cancer to explore an appropriate molecule for use in specific immunotherapy of breast cancer patients .
SART3 antigen

 In 6 cases only there was a strong infiltration of mononuclear cells positive for acid phosphatase .
acid phosphatase

 Forced expression of LKLF was associated with markedly decreased c - Myc expression .

c - Myc