Results 81 to 90 of about 83,988 (248)

Visual and Plasmon Resonance Absorption Sensor for Adenosine Triphosphate Based on the High Affinity between Phosphate and Zr(IV)

open access: yesSensors, 2016
Zr(IV) can form phosphate and Zr(IV) (–PO32−–Zr4+–) complex owing to the high affinity between Zr(IV) with phosphate. Zr(IV) can induce the aggregation of gold nanoparticles (AuNPs), while adenosine triphosphate(ATP) can prevent Zr(IV)-induced ...
Wenjing Qi   +4 more
doaj   +1 more source

NF-KB protein purification from bovine spleen: Nucleotide stimulation and binding site specificity [PDF]

open access: yes, 1988
The activity of the enhancer for the κ immunoglobulin light chain gene critically depends on the presence in the nucleus of the NF-κB protein. We purified NF-κB over 50,000-fold and identified two protein species, 42 and 44 kDa, that could be eluted and ...
Baltimore, David   +3 more
core  

IgM Antibodies Can Access Cryptic Antigens Denied to IgG: Hypothesis on Novel Binding Mechanism

open access: yesFrontiers in Immunology, 2019
Antibodies are well-known protein mediators of immunity. IgM is the primordial member and the neglected sibling of the later-evolved and more proficient IgG in regard to their therapeutic and diagnostic use.
Eric Chun Yiu Law   +7 more
doaj   +1 more source

Controlled Delivery and Light‐Induced Release of Magic Spot Nucleotides in Escherichia coli

open access: yesAngewandte Chemie International Edition, EarlyView.
We synthesized photocaged, clickable and isotope‐labeled “magic spot” Nucleotides and delivered them into Escherichia coli comparing different approaches. Light‐controlled release inside living cells enabled tracking of their conversion from pppGpp to ppGpp by capillary electrophoresis mass spectrometry and revealed their impact on the growth rate of a
Christoph Popp   +12 more
wiley   +1 more source

Pyruvate kinase directly generates GTP in glycolysis, supporting growth and contributing to guanosine toxicity

open access: yesmBio
Guanosine triphosphate (GTP) is essential for macromolecular biosynthesis, and its intracellular levels are tightly regulated in bacteria. Loss of the alarmone (p)ppGpp disrupts GTP regulation in Bacillus subtilis, causing cell death in the presence of ...
Fukang She   +9 more
doaj   +1 more source

A Long Overdue Targeted Treatment for KRAS Mutations in NSCLC: Spotlight on Adagrasib

open access: yesLung Cancer: Targets and Therapy, 2022
Danielle Brazel,1 Zhaohui Arter,1 Misako Nagasaka1– 3 1Department of Medicine, University of California Irvine School of Medicine, Orange, CA, USA; 2Chao Family Comprehensive Cancer Center, Orange, CA, USA; 3St.
Brazel D, Arter Z, Nagasaka M
doaj  

Determination of total potentially available nucleosides in bovine milk [PDF]

open access: yes, 2010
Bovine colostrum and milk samples were collected from two herds over the course of the first month post-partum, pooled for each herd by stage of lactation and total potentially available nucleosides were determined.
Gill, Brendon D.   +2 more
core   +2 more sources

Reprogramming tumor immune microenvironment by ultrasound‐responsive nanoplatforms for enhanced cancer immunotherapy

open access: yesBMEMat, EarlyView.
Ultrasound‐responsive nanoplatforms reprogram the tumor immune microenvironment by targeting tumor cells, immune cells, and non‐immune stromal cells to enhance the efficacy of cancer immunotherapy. Abstract Cancer immunotherapy represents a significant advancement in cancer treatment by enhancing the specific recognition and elimination of cancer cells.
Shilong Zhao   +4 more
wiley   +1 more source

ProTides for Antiviral Activity Beyond Liver Cells

open access: yesChemistry – A European Journal, EarlyView.
A strategy for obtaining prodrugs of antiviral nucleotides with broad tissue activity is presented that relies on cycloalkyl or cycloalkylalkyl esters, improving uptake and esterase cleavage, and producing nanomolar inhibitors in kidney, colon, and lung cells.
Felix Goebel   +5 more
wiley   +1 more source

Roles of transcriptional and translational control mechanisms in regulation of ribosomal protein synthesis in Escherichia coli [PDF]

open access: yes, 2017
Bacterial ribosome biogenesis is tightly regulated to match nutritional conditions and to prevent formation of defective ribosomal particles. InEscherichia coli, most ribosomal protein (r-protein) synthesis is coordinated with rRNA synthesis by a ...
Burgos, Hector L   +3 more
core   +3 more sources

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