Proton transfer in histidine-tryptophan heterodimers embedded in helium droplets
Journal Article
·
· Journal of Chemical Physics
- Department of Physics and Astronomy, University of Southern California, Los Angeles, California 90089-0484 (United States)
We used cold helium droplets as nano-scale reactors to form and ionize, by electron bombardment and charge transfer, aromatic amino acid heterodimers of histidine with tryptophan, methyl-tryptophan, and indole. The molecular interaction occurring through an N–H ⋅ ⋅ ⋅ N hydrogen bond leads to a proton transfer from the indole group of tryptophan to the imidazole group of histidine in a radical cationic environment.
- OSTI ID:
- 22415535
- Journal Information:
- Journal of Chemical Physics, Journal Name: Journal of Chemical Physics Journal Issue: 11 Vol. 142; ISSN JCPSA6; ISSN 0021-9606
- Country of Publication:
- United States
- Language:
- English
Similar Records
Proton affinity of the histidine-tryptophan cluster motif from the influenza A virus from ab initio molecular dynamics
Electron spin resonance investigation of charge transfer in aromatic peptide. pi. -cation radicals
Reaction of 3-diazonium-1,2,4-triazole with tryptophan at acid pH: a scintillation method for tryptophan determination in proteins
Journal Article
·
Thu Aug 01 00:00:00 EDT 2013
· Chemical Physics
·
OSTI ID:1564958
Electron spin resonance investigation of charge transfer in aromatic peptide. pi. -cation radicals
Journal Article
·
Wed Feb 08 23:00:00 EST 1978
· J. Phys. Chem.; (United States)
·
OSTI ID:5120033
Reaction of 3-diazonium-1,2,4-triazole with tryptophan at acid pH: a scintillation method for tryptophan determination in proteins
Journal Article
·
Wed Oct 31 23:00:00 EST 1979
· Anal. Biochem.; (United States)
·
OSTI ID:5410256