loeys-dietz syndrome (type 2b) is a human genetic disorder associated with mutations in the lds2b gene. researchers have proposed that the lds2b gene produces a growth factor receptor protein that regulates cell signaling pathways. the predicted product of the gene is 565-amino acid protein with structural regions that bind to signaling molecules, span the plasma membrane, and has protein kinase activity. protein kinases are cellular enzymes that transfer phosphate groups from atp to target proteins. calucate the minimum number of nucleotides required in the coding region of the lds2b mrna molecule to produce and terminate the 565-amino acid polypeptide. explain how you arrived at your answer