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.

 We have previously described the partial purification of Ap4A hydrolase from S . pombe [ Robinson , de la Pena and Barnes ( 1993 ) Biochim .
Ap4A hydrolase

 Protease digestion and alkaline extraction of microsomes containing labeled mutant proteins further showed that segment 3 was sufficient for stable membrane anchoring of the glycoproteins , indicating that this segment may specify the transmembrane domain of the gB glycoprotein .
gB glycoprotein

 Experimental studies and clinical application of plasma ACTH radioimmunoassay kit without extraction process

plasma ACTH