Transition-metal coordination modulates predicted DNA groove recognition and nucleobase contacts in oligohistidine complexes.
Histidine-rich peptides are widely used in affinity-based purification because imidazole donors can coordinate transition-metal ions. To examine how fixed metal-coordination models may alter the predicted DNA-contacting behavior of a histidine hexamer, a fully in silico comparison was performed using metal-free His6 an...