title: Specific purine N7-nitrogens are critical for high affinity binding by the Trp repressor.
authors.forename: S A
authors.initials: SA
authors.lastname: Smith
authors.forename: S B
authors.initials: SB
authors.lastname: Rajur
authors.forename: L W
authors.initials: LW
authors.lastname: McLaughlin
mesh_terms: D001426:Bacterial Proteins; D001483:Base Sequence; D001665:Binding Sites; D008969:Molecular Sequence Data; D009584:Nitrogen / Q000737:chemistry; D009875:Operator Regions, Genetic; D011687:Purines / Q000737:chemistry; D012097:Repressor Proteins / Q000378:metabolism*; D029968:Escherichia coli Proteins
chemical_list: D001426:Bacterial Proteins; D009584:Nitrogen; D011687:Purines; D012097:Repressor Proteins; C027190:TRPR protein, E coli; D029968:Escherichia coli Proteins