Results 91 to 100 of about 1,046,387 (249)
Advanced Science, EarlyView.A tumor‐state‐gated metallo‐DNAzyme framework integrates miR‐21/APE1‐responsive GLUT1 silencing with Ca/Cu‐partitioned metal–nucleic acid assembly and cystine loading. The framework first weakens glucose‐dependent metabolic buffering and then amplifies copper‐ and disulfide‐associated stress, converting tumor metabolic adaptation into programmable ...
Xiaodong Ma +8 more
wiley +1 more source
Advanced Science, EarlyView.This study reveals that during skeletal aging, bone marrow adipocyte‐derived sDPP4 primes STING signaling in macrophages. In combination with mitochondrial DNA, this signaling activates CD38 and depletes local NAD+/NMN, thereby impairing osteogenesis.
Zhichao Li +12 more
wiley +1 more source
TASK Quarterly, 2014 We examined the effect of like-charged residues on the conformation of an original nine amino-acid-residue fragment of the human Pin1 WW domain (hPin1) with the following sequence: Ac-Arg-Met-Ser-Arg-Ser-Ser-Gly-Arg-Val-NH2 (U9). This was facilitated by
JOANNA MAKOWSKA +3 more
doaj +1 more source
, 2016 We examine the relationship between covalent structure and conformational propensity among a series of β-amino acid tetramers. These experiments focus on the hairpin folding motif.
Yong Jun Chung (3005409) +6 more
core +1 more source
Advanced Science, EarlyView.TGFBI deficiency elevates O‐GlcNAcylation, promoting the transcriptional activation of ADAMTS16 and OGT‐mediated post‐translational modification of ADAMTS16 at Ser1170. This leads to its stabilization and accumulation, driving chondrocyte metabolic disorders and senescent phenotypes, ultimately resulting in fibrocartilage dysfunction and TMJOA ...
Xin Liu +12 more
wiley +1 more source
Reversible fold-switching controls the functional cycle of the antitermination factor RfaH
Nature Communications, 2019 The antitermination factor RfaH adopts two functional states where its C-terminal domain is folded either as an α-helical hairpin or β-barrel. Here the authors employ solution state NMR measurements to show that the C-terminal domain transforms into the ...
Philipp Konrad Zuber +4 more
doaj +1 more source
Advanced Science, EarlyView.This study characterizes MfAgo, an enzyme exhibiting highly efficient DNA‐guided DNA and RNA cleavage capability. Precise RNA cleavage strictly requires dimerization to stabilize the PIWI‐loop region, while its robust DNA cleavage functions in a dimerization‐independent manner.
Fuyong Huang +9 more
wiley +1 more source
Light-triggered β-hairpin folding and unfolding [PDF]
, 2007 A light-switchable peptide is transformed with ultrashort pulses from a β-hairpin to an unfolded hydrophobic cluster and vice versa. The structural changes are monitored by mid-IR probing.
Zinth, Wolfgang +11 more
core +1 more source
Advanced Science, EarlyView.We use lysine‐to‐glutamine mutations to study the effect of electrostatics on the kinetics and thermodynamics of alpha‐synuclein amyloid fibril formation. We find that mutational effects map on their structural context within fibrils and identify residues that modulate the energy landscape of alpha‐synuclein self‐assembly. Our work outlines a scalable,
Antonin Kunka +10 more
wiley +1 more source
Molecular Dynamics Folding Simulation of β-hairpin Protein (1E0Q)
, 2014 The structure and trajectories of the mutant peptide of ubiquitin (PDB ID: 1E0Q) has been studied using Molecular Dynamics (MD) simulation. The simulation was performed using AMBER 11 utilizing force field 99 for 50 ns at constant temperature 325 K.
Nurul Bahiyah Ahmad Khairudin +1 more
core +1 more source