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:  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 .

A: glucagon gene
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Q:  Our results are consistent with TCOF1 mutations leading to the Treacher Collins syndrome phenotype .

A: TCOF1 mutations
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Q:  Thus , an unmodified threonine at position 169 in Cdc28 is important for interaction with G1 cyclins .

A:
G1 cyclins
****