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]: Molecular recognition of histidine tRNA by histidyl-tRNA synthetase from hyperthermophilic archaeon, Aeropyrum pernix K1.
[A]: histidyl-tRNA synthetase


[Q]: Hypermethylation of P15, P16, and E-cadherin genes in ovarian cancer.
[A]: E-cadherin


[Q]: Aspirin and sodium salicylate inhibit endothelin ETA receptors by an allosteric type of mechanism.
[A]:
ETA receptors