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:  Unlike CSK , the SH3 domain of HYL was unique since the ALYDY motif was absent .

Output: SH3 domain


Input: Consider Input:  CAT assays demonstrated that overexpression of RXRalpha conferred the best RA response , consistent with our previous observation that 9 - cis - RA is more potent than all - trans - RA for inducing the expression of the AFP gene .

Output: AFP gene


Input: Consider Input:  Adhesion was inhibited by mAbs against the COOH - terminus and central cell binding domains of fibronectin , as well as by the corresponding CS1 and RGD peptides .


Output: RGD peptides