2019
DOI: 10.1111/cbdd.13641
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Abstract: The cover image is based on the Research Article Interdomain twists of human thymidine phosphorylase and its active–inactive conformations: Binding of 5‐FU and its analogues to human thymidine phosphorylase versus dihydropyrimidine dehydrogenase by Tiffany Tozer et al., DOI https://doi.org/10.1111/cbdd.13596. Cover image design © Kali. A Heale and Tiffany M Tozer

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Cited by 2 publications
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“…Thirdly, an examination of the distances between the domains responsible for active site closure indicated markedly reduced molecular motion of the enzyme‐ 1 a* complex compared to the enzyme‐ 1 a complex (Figures 2F–H and S19). While Gt PyNP with bound 1 a exhibited oscillatory opening and closing motions on a timescale of around 11 ns (similar dynamics are known for the closely related thymidine phosphorylases), [64–70] binding of 1 a* largely arrested this process. Specifically, binding of 1 a* locks the enzyme in an open conformation by displacing a catalytically essential arginine residue, which reversibly adopts an inward position.…”
Section: Methodsmentioning
confidence: 64%
“…Thirdly, an examination of the distances between the domains responsible for active site closure indicated markedly reduced molecular motion of the enzyme‐ 1 a* complex compared to the enzyme‐ 1 a complex (Figures 2F–H and S19). While Gt PyNP with bound 1 a exhibited oscillatory opening and closing motions on a timescale of around 11 ns (similar dynamics are known for the closely related thymidine phosphorylases), [64–70] binding of 1 a* largely arrested this process. Specifically, binding of 1 a* locks the enzyme in an open conformation by displacing a catalytically essential arginine residue, which reversibly adopts an inward position.…”
Section: Methodsmentioning
confidence: 64%
“…Drittens zeigte eine Untersuchung der Abstände zwischen den Domänen, die für den Verschluss der Substratbindetasche verantwortlich sind, eine deutlich geringere Beweglichkeit im Enzym‐ 1 a* ‐Komplex verglichen mit dem Enzym‐ 1 a ‐Komplex (Abbildung 2F–H und S19). Während Gt PyNP mit gebundenem 1 a oszillatorische Öffnungs‐ und Schließbewegungen auf einer Zeitskala von etwa 11 ns zeigte (ähnliche Dynamiken sind für die eng verwandten Thymidinphosphorylasen bekannt), [64–70] stoppte die Bindung von 1 a* diesen Prozess weitgehend. Unsere Simulationen zeigten, dass dieser Effekt wohl auf ein katalytisch essentielles Arginin zurückgeht, das durch Bindung von 1 a* eine reversible, nach innen gewandte Position einnimmt.…”
Section: Methodsunclassified