Results 1 to 10 of about 230,876 (232)

Low-Barrier Hydrogen Bond in Fujikurin A-D: A Computational Study. [PDF]

open access: goldACS Omega, 2022
The compounds Fujikurin A, B, and D, recently isolated from Fusarium fujikuroi, possess intramolecular low-barrier hydrogen bonds (LBHBs), which are hydrogen bonds with a very low-energy barrier for proton transfer. The isolated compounds have a hydrogen-
Tanaka H   +3 more
europepmc   +5 more sources

Direct evidence of a low barrier hydrogen bond in the catalytic triad of a Serine protease. [PDF]

open access: goldSci Rep, 2018
Serine proteases are one of the largest groups of enzymes, found in both eukaryotes and prokaryotes, and are responsible for many different functions. The detailed information about the hydrogen-bonds in the catalytic triad (Asp…His…Ser) of these enzymes
Agback P, Agback T.
europepmc   +6 more sources

Vibrational analysis on the revised potential energy curve of the low-barrier hydrogen bond in photoactive yellow protein [PDF]

open access: goldComputational and Structural Biotechnology Journal, 2016
Photoactive yellow protein (PYP) has a characteristic hydrogen bond (H bond) between p-coumaric acid chromophore and Glu46, whose OH bond length has been observed to be 1.21 Å by the neutron diffraction technique [Proc. Natl. Acad. Sci.
Yusuke Kanematsu   +3 more
doaj   +5 more sources

Contribution of a low-barrier hydrogen bond to catalysis is not significant in ketosteroid isomerase. [PDF]

open access: bronzeMol Cells, 2015
Low-barrier hydrogen bonds (LBHBs) have been proposed to have important influences on the enormous reaction rate increases achieved by many enzymes.
Jang DS   +7 more
europepmc   +9 more sources

A low-barrier hydrogen bond mediates antibiotic resistance in a noncanonical catalytic triad. [PDF]

open access: goldSci Adv, 2018
Substrate participation in forming a catalytic triad aids in antibiotic resistance by aminoglycoside N3-acetyltransferases. One group of enzymes that confer resistance to aminoglycoside antibiotics through covalent modification belongs to the GCN5 ...
Kumar P, Serpersu EH, Cuneo MJ.
europepmc   +7 more sources

An N⋯H⋯N low-barrier hydrogen bond preorganizes the catalytic site of aspartate aminotransferase to facilitate the second half-reaction. [PDF]

open access: diamondChem Sci, 2022
Pyridoxal 5′-phosphate (PLP)-dependent enzymes have been extensively studied for their ability to fine-tune PLP cofactor electronics to promote a wide array of chemistries.
Drago VN   +9 more
europepmc   +4 more sources

Distinction between low-barrier hydrogen bond and ordinary hydrogen bond: a case study of varying nature of charge assisted hydrogen bonds of diglycine perchlorate crystal [PDF]

open access: goldMaterials Research Express, 2023
Hydrogen bonding is a complex phenomenon that is a resultant of many energy components like the electrostatic, dispersive, covalent, charge cloud overlap repulsion etc, nature of hydrogen bond (H-bond) depends on which of these components play a dominant
Rajul Ranjan Choudhury   +2 more
doaj   +3 more sources

Ligand-Induced Proton Transfer and Low-Barrier Hydrogen Bond Revealed by X-ray Crystallography. [PDF]

open access: greenJ Am Chem Soc, 2015
Nichols DA   +10 more
europepmc   +4 more sources

A new role of low barrier hydrogen bond in mediating protein stability by small molecules [PDF]

open access: greenbioRxiv, 2021
Low barrier hydrogen bond (LBHB) is a special type of hydrogen bond which occurs where two heteroatoms with similar pKa values share a single proton resulting in an unusually strong and short hydrogen bond. LBHBs in protein play important roles in enzyme
Jianhong Yang   +14 more
openalex   +2 more sources

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