Yes, Arg has 3 potential Hbond donor/acceptors and Glu 2. Also a single atom can have multiple interactions. Look in coot at the structures and which atom has which interaction with which partner atom.
Best, Herman -----Ursprüngliche Nachricht----- Von: CCP4 bulletin board [mailto:CCP4BB@JISCMAIL.AC.UK] Im Auftrag von Mohamed Noor Gesendet: Freitag, 20. Januar 2017 11:45 An: CCP4BB@JISCMAIL.AC.UK Betreff: [ccp4bb] Salt bridge-hydrogen bonds Dear all Is it possible for two residues to form a salt bridge between them, and at the same time**, each of them form a hydrogen bond with another residue? In other words: Arg1 - Glu10 (salt bridge) Arg1 - Tyr600 (H bond) Glu10 - Thr590 (H bond) ** I understand proteins are not static structures, so I am referring to an exact time and space here and not something formed and broken throughout a sampled period of time.
