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.

Q: Identification of cDNAs encoding two human alpha class glutathione transferases (GSTA3 and GSTA4) and the heterologous expression of GSTA4-4.

A: human alpha class glutathione transferases
****
Q: Crystal structure of pyridoxal kinase in complex with roscovitine and derivatives.

A: pyridoxal kinase
****
Q: Bioimaging real-time PXR-dependent mdr1a gene regulation in mdr1a.fLUC reporter mice.

A:
mdr1a
****