Instructions: 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: In contrast to the restricted tissue expression of gonadotropin and TSH receptors in gonads and thyroid , respectively , LGR4 is expressed in diverse tissues including ovary , testis , adrenal , placenta , thymus , spinal cord , and thyroid , whereas LGR5 is found in muscle , placenta , spinal cord , and brain .
Output:
TSH receptors