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:  Pancreatic expression of the glucagon gene depends on multiple transcription factors interacting with at least three DNA control elements : G1 , the upstream promoter element , and G2 and G3 , two enhancer - like sequences .

Output: glucagon gene


Input: Consider Input:  Sequence and deletion analysis of the recombination enhancement gene ( ref ) of bacteriophage P1 : evidence for promoter - operator and attenuator - antiterminator control .

Output: recombination enhancement gene


Input: Consider Input:  The three OAS genes are flanked by markers WI - 10614 ( cen ) and D12S2293 ( tel ) and are contained within three sets of overlapping cosmid clones .


Output: OAS genes