Results 121 to 130 of about 622,957 (315)

Single crystal x-ray diffraction studies on small, medium and large molecules [PDF]

, 1996
Chapter 1. Production of crystals for diffraction analysis would be assisted by the devising of a set of rules which, given molecular formula, could predict crystal formation conditions.
Butterworth, Susanna
core  

Nicotinamide: Seven New Polymorphic Structures Revealed by Melt Crystallization and Crystal Structure Prediction

, 2020
Here, we reported nicotinamide (NIC), a long-known vitamin, was revealed in fact to be a highly polymorphic compound with nine solved single-crystal structures by performing melt crystallization.
Baimei, Shi, Chao, Chang, Bing, Wang, Xiao, Ou, Haowei, Rong, Xizhen, Li, Lian, Yu, Bingquan, Wang, Ming, Lu   +8 more
core   +1 more source

The crystal structure of the Borrelia burgdorferi nicotinamidase BBE22 resolves a long‐standing annotation error

FEBS Open Bio, EarlyView.
The crystal structure of Borrelia burgdorferi nicotinamidase (PncA/BBE22) reveals the correct full‐length protein initiated from a non‐canonical AUU start codon. The structure validates previous biochemical findings and resolves a long‐standing annotation error, demonstrating that the truncated database sequence is structurally incompatible with the ...
Kalvis Brangulis
wiley   +1 more source

Bridging text and crystal structures: literature-driven contrastive learning for materials science

Machine Learning: Science and Technology
Understanding structure–property relationships is an essential yet challenging aspect of materials discovery and development. To facilitate this process, recent studies in materials informatics have sought latent embedding spaces of crystal structures to
Yuta Suzuki, Tatsunori Taniai, Ryo Igarashi, Kotaro Saito, Naoya Chiba, Yoshitaka Ushiku, Kanta Ono   +6 more
doaj   +1 more source

Crystal Structures of T. b. rhodesiense Adenosine Kinase Complexed with Inhibitor and Activator: Implications for Catalysis and Hyperactivation [PDF]

, 2011
Background: The essential purine salvage pathway of Trypanosoma brucei bears interesting catalytic enzymes for chemotherapeutic intervention of Human African Trypanosomiasis.
Jason Greenwald, Perozzo Remo, Greenwald Jason, Dirk Kostrewa, Leonardo Scapozza, Remo Perozzo, Kuettel Sabine, Perozzo, Remo, Shaheen Ahmed, Kostrewa Dirk, Scapozza Leonardo, Kuettel, Sabine, Greenwald, Jason, Scapozza, Leonardo, Ahmed Shaheen, Kostrewa, Dirk, Sabine Kuettel, Ahmed, Shaheen   +17 more
core   +1 more source

Guiding AlphaFold to predict how Munc13‐1 opens Syntaxin‐1

FEBS Open Bio, EarlyView.
The syntaxin‐1 Habc‐domain (orange), linker (pink) and SNARE motif (yellow) form a closed conformation that binds to Munc18‐1 (violet) and is opened by the Munc13‐1 MUN domain (cyan) to form the SNARE complex that triggers neurotransmitter release.
Madhurima Chattopadhyay, Junjie Xu, Josep Rizo   +2 more
wiley   +1 more source

Global Search for Structures of Carbon Crystal Under Ultrahigh Pressure

, 2020
In this study, a systematic search for structures of carbon crystal under ultrahigh pressure was performed by using the artificial force induced reaction method including periodic boundary conditions (PBC/SC-AFIR).
Makito, Takagi, Satoshi, Maeda
core   +1 more source

Crystal structure of the 25 kDa subunit of human cleavage factor Im [PDF]

, 2008
Cleavage factor I(m) is an essential component of the pre-messenger RNA 3'-end processing machinery in higher eukaryotes, participating in both the polyadenylation and cleavage steps. Cleavage factor I(m) is an oligomer composed of a small 25 kDa subunit
Martin., G., Coseno, M., Doublié, S., Molly Coseno, Sylvie Doublié, Georges Martin, Gilmartin, G., Keller, W., Gregory Gilmartin, Walter Keller, Christopher Berger, Berger, C.   +11 more
core   +1 more source

Hyperactive ice‐binding proteins stabilize cell membranes and improve resistance to dehydration stress in Caenorhabditis elegans

FEBS Open Bio, EarlyView.
TisIBP8, a fungal‐derived hyperactive ice‐binding protein, helps Caenorhabditis elegans survive dehydration. It localizes near cell membranes, reduces cell damage, and helps maintain membrane structure during drying. These results suggest that ice‐binding proteins can protect cells from dehydration stress as well as freezing stress.
Daiki Shimose, Kotaro Ozaki, Ryohei Kuriyama, Yuka Ikemoto, Kazuhiro Mio, Yuji C. Sasaki, Tatsuya Arai, Sakae Tsuda, Yoichi Shinkai, Masahiro Kuramochi   +9 more
wiley   +1 more source

Molecular characterization of covRS mutations in M1UK Streptococcus pyogenes

FEBS Open Bio, EarlyView.
Group A Streptococcus (GAS) acquires covRS mutations driving a hypervirulent bacterial state, frequently associated with invasive disease‐like necrotizing fasciitis. We demonstrate that the newly emerged M1UK GAS lineage can also acquire these mutations.
Jarrad Pritchard, Emma‐Jayne Proctor, Jiawa Wang, Nikolas P. Johnston, Andrew Hayes, Georgia McCorkell, Haibo Yu, Jai Tree, Mark R. Davies, Mark J. Walker, Ronald Sluyter, Stephan Brouwer, Martina L. Sanderson‐Smith   +12 more
wiley   +1 more source