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.
--------
Question:  ( We observed a ferritin value as high as 47 mg / L in one patient . ) Results with all these kits did not inter - compare well for ferritin concentrations greater than 300 micrograms / L , a finding that casts further doubt on the controversial use of serum ferritin measurement in cases of iron overload .

Answer: serum ferritin


Question:  The effective use of superoxide dismutase from human erythrocytes in the late stages of experimental influenza infection

Answer: superoxide dismutase


Question:  The phosphoprotein pUL69 of human cytomegalovirus ( HCMV ) , which is a herpesvirus of considerable medical importance in immunosuppressed patients and newborns , has previously been identified as an early - late viral protein that can stimulate several viral and cellular promoters and thus exerts a rather broad activation pattern .

Answer:
phosphoprotein pUL69