Results 21 to 30 of about 103,093 (251)

Small-angle neutron scattering studies suggest the mechanism of BinAB protein internalization

open access: yesIUCrJ, 2020
Small-angle neutron scattering (SANS) is one of the most widely used neutron-based approaches to study the solution structure of biological macromolecular systems.
Mahima Sharma   +3 more
doaj   +1 more source

Study of the Interaction of Sorption and Catalytic Centers in Carboxypeptidase T by X-ray Analysis

open access: yesCrystals, 2021
Carboxypeptidase T (CPT; EC 3.4.17.18) from Thermoactinomyces vulgaris is a distant homolog of the highly specific pancreatic carboxypeptidase B; but has a broad substrate specificity; the source of which remains unclear.
Valerij Akparov   +3 more
doaj   +1 more source

Macromolecular neutron crystallography at the Protein Crystallography Station (PCS) [PDF]

open access: yesActa Crystallographica Section D Biological Crystallography, 2010
The Protein Crystallography Station (PCS) at Los Alamos Neutron Science Center is a high-performance beamline that forms the core of a capability for neutron macromolecular structure and function determination. Neutron diffraction is a powerful technique for locating H atoms and can therefore provide unique information about how biological ...
Andrey, Kovalevsky   +5 more
openaire   +2 more sources

Structural and Functional Investigation and Pharmacological Mechanism of Trichosanthin, a Type 1 Ribosome-Inactivating Protein

open access: yesToxins, 2018
Trichosanthin (TCS) is an RNA N-glycosidase that depurinates adenine-4324 in the conserved α-sarcin/ricin loop (α-SRL) of rat 28 S ribosomal RNA (rRNA).
Wei-Wei Shi, Kam-Bo Wong, Pang-Chui Shaw
doaj   +1 more source

The PinX1/NPM interaction associates with hTERT in early-S phase and facilitates telomerase activation

open access: yesCell & Bioscience, 2019
Background Telomere maintenance is an important factor in tumorigenesis. PinX1 is a potent telomerase regulator which also involves in telomerase loading to telomeres.
Sai-Tim Ho   +4 more
doaj   +1 more source

Protein Crystallography: Achievements and Challenges

open access: yesCrystals, 2023
Proteins are the most important biological macromolecules, and are involved in almost all aspects of life. Therefore, the study of the structure of proteins is of great practical and fundamental importance.
Vladimir Timofeev, Valeriya Samygina
doaj   +1 more source

Structural and functional insights into Ubl domain-mediated regulation of SARS-CoV-2 PLpro

open access: yesBiology Direct
Background SARS-CoV-2 papain-like protease (PLpro) is essential for viral replication and immune evasion. It contains an N-terminal ubiquitin-like (Ubl) domain, whose involvement in enzymatic function remains poorly understood.
Rimanshee Arya   +3 more
doaj   +1 more source

Disordered but rhythmic—the role of intrinsic protein disorder in eukaryotic circadian timing

open access: yesFEBS Letters, EarlyView.
Unstructured domains known as intrinsically disordered regions (IDRs) are present in nearly every part of the eukaryotic core circadian oscillator. IDRs enable many diverse inter‐ and intramolecular interactions that support clock function. IDR conformations are highly tunable by post‐translational modifications and environmental conditions, which ...
Emery T. Usher, Jacqueline F. Pelham
wiley   +1 more source

Conserved structural motifs in PAS, LOV, and CRY proteins regulate circadian rhythms and are therapeutic targets

open access: yesFEBS Letters, EarlyView.
Cryptochrome and PAS/LOV proteins play intricate roles in circadian clocks where they act as both sensors and mediators of protein–protein interactions. Their ubiquitous presence in signaling networks has positioned them as targets for small‐molecule therapeutics. This review provides a structural introduction to these protein families.
Eric D. Brinckman   +2 more
wiley   +1 more source

Severe deviation in protein fold prediction by advanced AI: a case study

open access: yesScientific Reports
Artificial intelligence (AI) and deep learning are making groundbreaking strides in protein structure prediction. AlphaFold is remarkable in this arena for its outstanding accuracy in modelling proteins fold based solely on their amino acid sequences. In
Jacinto López-Sagaseta   +1 more
doaj   +1 more source

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