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.

Example Input:  ( 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 .
Example Output: serum ferritin

Example Input:  The present study also emphasizes the need of establishing dose - response curves to correctly assess the relative contribution of the different regions of steroid hormone receptors in activation of transcription .
Example Output: steroid hormone receptors

Example Input:  Having demonstrated proper localization of GFP - calmodulin in budding yeast , we examined the localization of a fusion between GFP and calmodulin ( GFP - Camlp ) in fission yeast , where calmodulin had not been localized by any method .
Example Output:
GFP - Camlp