Results 51 to 60 of about 291,286 (348)

Substrate-Assisted Catalysis Unifies Two Families of Chitinolytic Enzymes [PDF]

, 1997
Hen egg-white lysozyme has long been the paradigm for enzymatic glycosyl hydrolysis with retention of configuration, with a protonated carboxylic acid and a deprotonated carboxylate participating in general acid-base catalysis.
Blake C. C. F., C−, Davies G. J., Ford L. O., Henrissat B., Iseli B., Johnson L. N., Jones T. A., Kirby A., Knapp S., Kobayashi S., Koshland D. E., Perrakis A., Phillips D. C., Piszkiewicz D., Rao V. H., Rozeboom H. J., Sinnot M. L., Strynadka N. C. J., Sulzenbacher G., Terwisscha van Scheltinga A. C., Terwisscha van Scheltinga A. C., Terwisscha van Scheltinga A. C., Tews I., Thunnissen A. M. W. H., Tronrud D. E., van Roey P., Vårum K. M., Weaver L. H.   +28 more
core   +3 more sources

Purkinje Cell Loss in Essential Tremor: Collective Data From 215 Brains Over a 21‐Year Period

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Essential tremor is a highly prevalent movement disorder. Pathological changes observed in essential tremor cerebella center around Purkinje cells and neighboring neuronal populations. Postmortem studies have variably, but not always, shown reduced Purkinje cell counts in essential tremor compared to controls.
Chloë A. Kerridge, Roberto S. Hernandez, Nora C. Hernandez, Phyllis L. Faust, Elan D. Louis   +4 more
wiley   +1 more source

Nitrogen isotopes provide clues to amino acid metabolism in human colorectal cancer cells

Scientific Reports, 2017
Glutamic acid and alanine make up more than 60 per cent of the total amino acids in the human body. Glutamine is a significant source of energy for cells and also a prime donor of nitrogen in the biosynthesis of many amino acids.
R. V. Krishnamurthy, Yogesh R. Suryawanshi, Karim Essani   +2 more
doaj   +1 more source

Quantification of Glutamate and Aspartate by Ultra-High Performance Liquid Chromatography

Molecules, 2018
Glutamic and aspartic acid fulfil numerous functions in organisms. They are proteinogenic amino acids, they function as neurotransmitters, and glutamic acid links the citrate cycle with amino acid metabolism. In addition, glutamic acid is a precursor for
Carlos Agius, Sabine von Tucher, Brigitte Poppenberger, Wilfried Rozhon   +3 more
doaj   +1 more source

Ostracode-based aminostratigraphy and aminochronology of a tufa system in central Spain [PDF]

, 2005
In the Priego area, central Spain, extensive tufa deposits are located in three small tributaries located at the head of the 1000 kmlong Tagus River. The deposits are originated after karst-origin running waters emerged from the confines of the canyons ...
Andrews, Andrews, Arenas, Baker, Blum, Blum, Brook, Buccino, Bull, Cadot, Chafetz, Durán, Emeis, Evans, Ford, Geurts, Golubić, Golubić, Goodfriend, Goodfriend, Hennig, Jacobson, Julià, Kaufman, Kaufman, Knox, Leslie, López Vera, López Vera, Madurga, McCoy, Murray-Wallace, Oviatt, Pedley, Pentecost, Pentecost, Pentecost, Riding, Shackleton, Sohn, Stumm, Symoens, Torres, Torres, Torres, Tzedakis, Virgili   +46 more
core   +2 more sources

Bi-allelic GAD1 variants cause a neonatal onset syndromic developmental and epileptic encephalopathy. [PDF]

, 2020
Developmental and epileptic encephalopathies are a heterogeneous group of early-onset epilepsy syndromes dramatically impairing neurodevelopment. Modern genomic technologies have revealed a number of monogenic origins and opened the door to therapeutic ...
Alix, E, Alkaya, DU, Ashrafzadeh, F, Becker, F, Bilguvar, K, Chatron, N, de Bellescize, J, EuroEpinomics-RES consortium AR working group, Gunes, N, Hardies, K, Hussien, H, Karimiani, EG, Kok, F, Labalme, A, Lerche, H, Lesca, G, Maroofian, R, May, P, Morsy, H, Moslemi, A-R, Nabil, A, Najafi, M, Omar, T, Poulat, A-L, Ramos, L, Roselli, S, Sanlaville, D, Schmidts, M, Tajsharghi, H, Tuysuz, B, Weckhuysen, S   +30 more
core   +2 more sources

Insights Into the Antigenic Repertoire of Unclassified Synaptic Antibodies

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective We sought to characterize the sixth most common finding in our neuroimmunological laboratory practice (tissue assay‐observed unclassified neural antibodies [UNAs]), combining protein microarray and phage immunoprecipitation sequencing (PhIP‐Seq). Methods Patient specimens (258; 133 serums; 125 CSF) meeting UNA criteria were profiled;
Michael Gilligan, John R. Mills, Paulina Vargas, Naveen K. Paramasivan, Connie E. Lesnick, Eati Basal, Surendra Dasari, James P. Fryer, Shannon R. Hinson, Joseph Laporta, Amy Espinal, Dennis Fitzgerald, Carolina Garcia, Anna E. Morenkova, Paola Pergami, Anna Shah, Andrew Knight, Reghann LaFrance Corey, Vanda A. Lennon, Anastasia Zekeridou, Sean J. Pittock, Divyanshu Dubey, Andrew McKeon   +22 more
wiley   +1 more source

Calcium Imparts Advanced Functionalities to Silk Hydrogels for Biofabrication and Biomedical Innovation

Advanced Functional Materials, EarlyView.
The addition of calcium ions to silk fibroin enhances the hydrogel properties and, when combined with visible light crosslinking, enables compatibility with advanced light‐based fabrication techniques. Calcium ions extend the shelf‐life of silk and facilitate the fabrication of multizonal, multilayered constructs for advanced stimuli‐responsive ...
Hien A. Tran, Anton Maraldo, Chi Cong Nguyen, Trinh Thi‐Phuong Ho, Lauryn Srethbhakdi, Habib Joukhdar, Quinn van Hilst, Syamak Farajikhah, Fariba Dehghani, Thanh Nho Do, Khoon S. Lim, Jelena Rnjak‐Kovacina   +11 more
wiley   +1 more source

Nerve Agent Hydrolysis Activity Designed into a Human Drug Metabolism Enzyme [PDF]

, 2010
Organophosphorus (OP) nerve agents are potent suicide inhibitors of the essential neurotransmitter-regulating enzyme acetylcholinesterase. Due to their acute toxicity, there is significant interest in developing effective countermeasures to OP ...
Andrew C. Hemmert, C. Linn Cadieux, Carol C. Edwards, Douglas M. Cerasoli, Fernando Rodrigues-Lima, John R. Cashman, Jonathan S. Edwards, Lyudmila Tsurkan, Matthew R. Redinbo, Monika Wierdl, Philip M. Potter, Roberto A. Chica, Shane A. Kasten, Stephen L. Mayo, Steven M. Lewis, Tamara C. Otto   +15 more
core   +12 more sources

The Assimilation of Glutamic Acid by Yeast [PDF]

Journal of General Microbiology, 1949
SUMMARY: Using the corresponding amino-acid decarboxylases, the six amino-acids arginine, glutamic acid, histidine, lysine, ornithine and tyrosine were found to be free inside the cells of yeast. They are present when growth takes place in the absence of amino-acids, but their concentration may be increased by growing the organisms in media rich in ...
openaire   +2 more sources