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:  Presently , we made chain pair switch , chimeric , and site mutant gamma delta TCRs and transfected them into TCR - mutant Jurkat T cells to examine the effects of changing the TCR gamma junctional region sequences on reactivity to prenyl pyrophosphate Ags .
Example Output: prenyl pyrophosphate Ags

Example Input:  These results induce that the putative TATA box and initiator are not involved in the promoter activity , and that the vitronectin promoter lacks the TATA box , initiator and GC box .
Example Output: vitronectin promoter

Example Input:  Coimmunoprecipitation analysis suggests that these residues likely contribute to the multimerization function required for homomeric complex formation or heteromeric complex formation with p50 in that no association of p65 delta with itself or with p50 was evident .
Example Output:
p65 delta