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| 001 | 943341 | ||
| 005 | 20230228121554.0 | ||
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| 100 | 1 | _ | |a Lazaratos, Michalis |0 P:(DE-HGF)0 |b 0 |
| 245 | _ | _ | |a Conserved hydrogen-bond motifs of membrane transporters and receptors |
| 260 | _ | _ | |a Amsterdam |c 2022 |b Elsevier |
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| 520 | _ | _ | |a Membrane transporters and receptors often rely on conserved hydrogen bonds to assemble transient paths for ion transfer or long-distance conformational couplings. For transporters and receptors that use proton binding and proton transfer for function, inter-helical hydrogen bonds of titratable protein sidechains that could change protonation are of central interest to formulate hypotheses about reaction mechanisms. Knowledge of hydrogen bonds common at sites of potential interest for proton binding could thus inform and guide studies on functional mechanisms of protonation-coupled membrane proteins. Here we apply graph-theory approaches to identify hydrogen-bond motifs of carboxylate and histidine sidechains in a large data set of static membrane protein structures. We find that carboxylate-hydroxyl hydrogen bonds are present in numerous structures of the dataset, and can be part of more extended H-bond clusters that could be relevant to conformational coupling. Carboxylate-carboxyamide and imidazole-imidazole hydrogen bonds are represented in comparably fewer protein structures of the dataset. Atomistic simulations on two membrane transporters in lipid membranes suggest that many of the hydrogen bond motifs present in static protein structures tend to be robust, and can be part of larger hydrogen-bond clusters that recruit additional hydrogen bonds. |
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| 700 | 1 | _ | |a Siemers, Malte |0 P:(DE-HGF)0 |b 1 |
| 700 | 1 | _ | |a Brown, Leonid S. |0 P:(DE-HGF)0 |b 2 |
| 700 | 1 | _ | |a Bondar, Ana-Nicoleta |0 P:(DE-Juel1)187548 |b 3 |e Corresponding author |u fzj |
| 773 | _ | _ | |a 10.1016/j.bbamem.2022.183896 |g Vol. 1864, no. 6, p. 183896 - |0 PERI:(DE-600)2209384-9 |n 6 |p 183896 - |t Biochimica et biophysica acta / Biomembranes |v 1864 |y 2022 |x 0005-2728 |
| 856 | 4 | _ | |u https://juser.fz-juelich.de/record/943341/files/Manuscript_Lazaratos_BBA2022.docx |y Published on 2022-02-23. Available in OpenAccess from 2023-02-23. |
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