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.

Input: Consider Input: It is an untested argument that conventional beta - adrenoceptor antagonists possess unwanted metabolic effects that may counter some of their potential cardiac benefits .

Output: beta - adrenoceptor

Input: Consider Input: Whereas mutant 6C4 specified a wild - type - size Pol protein , we detected no full - length Pol protein in 7E4 - infected cell extracts .

Output: mutant 6C4

Input: Consider Input: A p53 cDNA deletion mutant ( delta pro AE ) , which lacks this entire proline - rich domain ( deleted for amino acids 62 - 91 ) , was created and characterized for a variety of p53 functions .
Output: p53 cDNA