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Licht O, Barreiro-Lage D, Rousseau P, Giuliani A, Milosavljević AR, Isaak A, Mastai Y, Albeck A, Singh R, Nguyen VTT, Nahon L, Martínez-Fernández L, Díaz-Tendero S, Toker Y. Peptide Bond Formation in the Protonated Serine Dimer Following Vacuum UV Photon-Induced Excitation. Angew Chem Int Ed Engl 2023; 62:e202218770. [PMID: 36789791 DOI: 10.1002/anie.202218770] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Revised: 02/14/2023] [Accepted: 02/14/2023] [Indexed: 02/16/2023]
Abstract
Possible routes for intra-cluster bond formation (ICBF) in protonated serine dimers have been studied. We found no evidence of ICBF following low energy collision-induced dissociation (in correspondence with previous works), however, we do observe clear evidence for ICBF following photon absorption in the 4.6-14 eV range. Moreover, the comparison of photon-induced dissociation measurements of the protonated serine dimer to those of a protonated serine dipeptide provides evidence that ICBF, in this case, involves peptide bond formation (PBF). The experimental results are supported by ab initio molecular dynamics and exploration of several excited state potential energy surfaces, unraveling a pathway for PBF following photon absorption. The combination of experiments and theory provides insight into the PBF mechanisms in clusters of amino acids, and reveals the importance of electronic excited states reached upon UV/VUV light excitation.
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Affiliation(s)
- Ori Licht
- Physics Department and Institute for Nanotehcnology and Advanced Materials, Bar-Ilan University, Ramat-Gan, 5290002, Israel
| | - Darío Barreiro-Lage
- Departamento de Química, Universidad Autónoma de Madrid, 28049, Madrid, Spain
| | - Patrick Rousseau
- Normandie Univ, ENSICAEN, UNICAEN, CEA, CNRS, CIMAP, 14000, Caen, France
| | - Alexandre Giuliani
- Synchrotron SOLEIL L'Orme des Merisiers Départementale 128, 91190, Saint-Aubin, France.,INRAE, UAR1008, Transform Department, Rue de la Géraudière BP 71627, 44316, Nantes, France
| | | | - Avinoam Isaak
- Chemistry Department and Institute for Nanotehcnology and Advanced Materials, Bar-Ilan University, Ramat-Gan, 5290002, Israel
| | - Yitzhak Mastai
- Chemistry Department and Institute for Nanotehcnology and Advanced Materials, Bar-Ilan University, Ramat-Gan, 5290002, Israel
| | - Amnon Albeck
- Chemistry Department and Institute for Nanotehcnology and Advanced Materials, Bar-Ilan University, Ramat-Gan, 5290002, Israel
| | - Raj Singh
- Normandie Univ, ENSICAEN, UNICAEN, CEA, CNRS, CIMAP, 14000, Caen, France
| | - Vy T T Nguyen
- Normandie Univ, ENSICAEN, UNICAEN, CEA, CNRS, CIMAP, 14000, Caen, France
| | - Laurent Nahon
- Synchrotron SOLEIL L'Orme des Merisiers Départementale 128, 91190, Saint-Aubin, France
| | - Lara Martínez-Fernández
- Departamento de Química, Universidad Autónoma de Madrid, 28049, Madrid, Spain.,Institute for Advanced Research in Chemistry (IAdChem), Universidad Autónoma de Madrid, 28049, Madrid, Spain
| | - Sergio Díaz-Tendero
- Departamento de Química, Universidad Autónoma de Madrid, 28049, Madrid, Spain.,Institute for Advanced Research in Chemistry (IAdChem), Universidad Autónoma de Madrid, 28049, Madrid, Spain.,Condensed Matter Physics Center (IFIMAC), Universidad Autónoma de Madrid, 28049, Madrid, Spain
| | - Yoni Toker
- Physics Department and Institute for Nanotehcnology and Advanced Materials, Bar-Ilan University, Ramat-Gan, 5290002, Israel
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