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:  A protein which promotes DNA strand transfer between linear double - stranded M13mp19 DNA and single - stranded viral M13mp19 DNA has been isolated from recA - E . coli .

Output: recA -


Input: Consider Input:  Cloning of the GATA - binding protein that regulates endothelin - 1 gene expression in endothelial cells .

Output: endothelin - 1


Input: Consider Input:  The CydDC system appears to be the first prokaryotic example of a heterodimeric ABC transport system in which each polypeptide contains both hydrophobic and ATP - binding domains .


Output: CydDC system