C
C. Sayer
Researcher at University of Exeter
Publications - 20
Citations - 551
C. Sayer is an academic researcher from University of Exeter. The author has contributed to research in topics: Active site & Hydrolase. The author has an hindex of 14, co-authored 20 publications receiving 467 citations.
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Journal ArticleDOI
Discovery and Characterization of a Thermostable and Highly Halotolerant GH5 Cellulase from an Icelandic Hot Spring Isolate
Dimitra Zarafeta,Dimitrios Kissas,C. Sayer,Soley Gudbergsdottir,Efthymios Ladoukakis,Michail N. Isupov,Aristotelis Chatziioannou,Xu Peng,Jennifer A. Littlechild,Georgios Skretas,Fragiskos N. Kolisis +10 more
TL;DR: X-ray crystallography of the new enzyme showed that CelDZ1 is the first reported cellulase structure that lacks the defined sugar-binding 2 subsite and revealed structural features which provide potential explanations of its biochemical characteristics.
Journal ArticleDOI
The substrate specificity, enantioselectivity and structure of the (R)-selective amine : pyruvate transaminase from Nectria haematococca
C. Sayer,Ruben J. Martinez-Torres,Nina Richter,Michail N. Isupov,Helen C. Hailes,Jennifer A. Littlechild,John M. Ward +6 more
TL;DR: The crystal structures of the holoenzyme and the complex with an inhibitor gabaculine offer the first detailed insight into the structural basis for substrate specificity and enantioselectivity of the industrially important class of (R)‐selective amine : pyruvate transaminases.
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Structural studies of Pseudomonas and Chromobacterium ω-aminotransferases provide insights into their differing substrate specificity
TL;DR: The X-ray structures of two ω-aminotransferases from P. aeruginosa and C. violaceum in complex with an inhibitor offer the first detailed insight into the structural basis of the substrate specificity of these industrially important enzymes.
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The structure of a tetrameric α-carbonic anhydrase from Thermovibrio ammonificans reveals a core formed around intermolecular disulfides that contribute to its thermostability
Paul James,Michail N. Isupov,C. Sayer,Vahid Saneei,Svein Berg,Maria G. Lioliou,Hans Kristian Kotlar,Jennifer A. Littlechild +7 more
TL;DR: When oxidized to mimic the environment of the periplasmic space, TaCA has increased thermostability, retaining 90% activity after incubation at 70°C for 1 h, making it a good candidate for industrial carbon-dioxide capture.
Journal ArticleDOI
Discovery and characterization of thermophilic limonene‐1,2‐epoxide hydrolases from hot spring metagenomic libraries
Erica Elisa Ferrandi,C. Sayer,Michail N. Isupov,Celeste Annovazzi,Carlotta Marchesi,Gianluca Iacobone,Xu Peng,Elizaveta A. Bonch-Osmolovskaya,Roland Wohlgemuth,Jennifer A. Littlechild,Daniela Monti +10 more
TL;DR: The structural analysis has provided insights into the LEH mechanism, substrate specificity and stereoselectivity of these new LEH enzymes, which has been supported by mutagenesis studies.