Results 91 to 100 of about 852,815 (296)

Calpain small subunit homodimerization is robust and calcium‐independent

FEBS Letters, EarlyView.
Calpains dimerize via penta‐EF‐hand (PEF) domains. Using single‐molecule force spectroscopy, we measured the strength and kinetics of PEF–PEF homodimer binding. The interaction is robust, shows a transient conformational step before dissociation, and remains largely insensitive to Ca2+.
Nesha May O. Andoy, Trina Dykstra‐MacPherson, Mathias A. Bell, Peter L. Davies, Ruby May A. Sullan   +4 more
wiley   +1 more source

Structural basis of template-boundary definition in Tetrahymena telomerase. [PDF]

, 2015
Telomerase is required to maintain repetitive G-rich telomeric DNA sequences at chromosome ends. To do so, the telomerase reverse transcriptase (TERT) subunit reiteratively uses a small region of the integral telomerase RNA (TER) as a template.
Akiyama, Ben M, Jansson, Linnea I, Lu, Cheng, Ooms, Alexandra, Rubin, Seth M, Stone, Michael D   +5 more
core   +2 more sources

Structural insights into an engineered feruloyl esterase with improved MHET degrading properties

FEBS Letters, EarlyView.
A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa, Konstantinos Makryniotis, Theofani‐Iosifina Sousani, Evangelos Topakas, Vangelis Daskalakis, Maria Dimarogona   +5 more
wiley   +1 more source

Genetic Fusion of an Anti-BclA Single-Domain Antibody with Beta Galactosidase

Antibodies, 2018
The Bacillus collagen-like protein of anthracis (BclA), found in Bacillus anthracis spores, is an attractive target for immunoassays. Previously, using phage display we had selected llama-derived single-domain antibodies that bound to B.
George P. Anderson, Lisa C. Shriver-Lake, Scott A. Walper, Lauryn Ashford, Dan Zabetakis, Jinny L. Liu, Joyce C. Breger, P. Audrey Brozozog Lee, Ellen R. Goldman   +8 more
doaj   +1 more source

A methionine‐lined active site governs carbocation stabilization and product specificity in a bacterial terpene synthase

FEBS Letters, EarlyView.
This study reveals a unique active site enriched in methionine residues and demonstrates that these residues play a critical role by stabilizing carbocation intermediates through novel sulfur–cation interactions. Structure‐guided mutagenesis further revealed variants with significantly altered product profiles, enhancing pseudopterosin formation. These
Marion Ringel, Carl P. O. Helmer, Shani Zev, Ronja Driller, Emily Buhr, Markus Reinbold, Renana Schwartz, Gabriel Foley, Mikael Boden, Daniel Garbe, Gerhard Schenk, Dan Thomas Major, Bernhard Loll, Thomas Brück   +13 more
wiley   +1 more source

The Versatile Molecular Complex Component LC8 Promotes Several Distinct Steps of Flagellar Assembly [PDF]

, 2012
LC8 is present in various molecular complexes. However, its role in these complexes remains unclear. We discovered that although LC8 is a subunit of the radial spoke (RS) complex in Chlamydomonas flagella, it was undetectable in the RS precursor that is ...
Anjali Gupta, Barbar, Bergen, Bloch, Dennis R. Diener, DiBella, Diener, Diener, Dymek, Dymek, Espindola, Fejtova, Gaillard, Hall, Harris, Heuser, Huang, Jaffrey, Jivan, Joel L. Rosenbaum, Johnson, Kamiya, Kindle, King, LeDizet, Liang, Lightcap, Lin, Lo, Lo, Luo, Naisbitt, Navarro-Lérida, Nicastro, Patel-King, Pazour, Pazour, Pfister, Pigino, Pinfen Yang, Piperno, Piperno, Porter, Priyanka Sivadas, Puthalakath, Qin, Rodríguez-Crespo, Rompolas, Sakato, Segal, Stelter, Summers, Tan, Warner, Wei, Williams, Wirschell, Yang, Yang, Yang, Yang, Yang   +61 more
core   +2 more sources

The ubiquitin ligase RNF115 is required for the clearance of damaged lysosomes

FEBS Letters, EarlyView.
Upon lysosomal rupture, an E3 ubiquitin ligase RNF115 translocates from the cytosol to the damaged lysosomal membrane. Moreover, RNF115 depletion impairs the clearance of damaged lysosomes, identifying it as a key regulator of lysosomal quality control.
Sae Nakanaga, Toshiki Takahashi, Akiko Kuma, Hiroyuki Kawahara   +3 more
wiley   +1 more source

Structural Insights into Rational Design of Single-Domain Antibody-Based Antitoxins against Botulinum Neurotoxins. [PDF]

, 2020
Botulinum neurotoxin (BoNT) is one of the most acutely lethal toxins known to humans, and effective treatment for BoNT intoxication is urgently needed. Single-domain antibodies (VHH) have been examined as a countermeasure for BoNT because of their high ...
Jin, Rongsheng, Lam, Kwok-Ho, McNutt, Patrick M, Ondeck, Celinia, Perry, Kay, Shoemaker, Charles B, Tremblay, Jacqueline M, Vazquez-Cintron, Edwin, Webb, Robert P   +8 more
core  

A general strategy for discovery of inhibitors and activators of RING and U-box E3 ligases with ubiquitin variants [PDF]

, 2017
RING and U-box E3 ubiquitin ligases regulate diverse eukaryotic processes and have been implicated in numerous diseases, but targeting these enzymes remains a major challenge.
Ahmed, Syed Feroj, Buetow, Lori, Gabrielsen, Mads, Huang, Danny T., Nakasone, Mark A., Sibbet, Gary J., Sidhu, Sachdev S., Smith, Brian O., Zhang, Wei   +8 more
core   +3 more sources

Organizing the interface—Plasma membrane architecture and receptor dynamics in virus‐cell interactions

FEBS Letters, EarlyView.
Plasma membranes contain dynamic nanoscale domains that organize lipids and receptors. Because viruses operate at similar scales, this architecture shapes early infection steps, including attachment, receptor engagement, and entry. Using influenza A virus and HIV‐1 as examples, we highlight how receptor nanoclusters, multivalent glycan interactions ...
Jan Schlegel, Christian Sieben
wiley   +1 more source