Results 111 to 120 of about 665,888 (285)

Synthetic molecular evolution of hybrid cell penetrating peptides

Nature Communications, 2018
Therapeutic peptide nucleic acids can be delivered into cells by conjugation to cell penetrating peptides (CPPs), but efficiency is usually low. Here the authors use synthetic molecular evolution and a luciferase-based library screen to generate new CPPs
W. Berkeley Kauffman, Shantanu Guha, William C. Wimley   +2 more
doaj   +1 more source

Lifetime positron annihilation spectroscopy and photo-inactivated bacteria [PDF]

arXiv, 2009
Combined positron and visible light irradiations in the photodynamical therapy (PDT) applications are analyzed. Objectives and goals of PDT are killing or irreversible oxidative damage of pathogenic cells, or rather their cell walls, cell membranes, peptides, and nucleic acids by photo-activated oxygen of photosentizer injected into the target cell ...
arxiv  

Between good and evil:Complexation of the human cathelicidin LL-37 with nucleic acids [PDF]

The innate immune system provides a crucial first line of defense against invading pathogens attacking the body. As the only member of the human cathelicidin family, the antimicrobial peptide LL-37 has been shown to have antiviral, antifungal, and ...
Barron, Annelise E., Lin, Jennifer S., Nielsen, Josefine Eilsø, Zielke, Claudia   +3 more
core   +1 more source

Structure of an archaeal PCNA1-PCNA2-FEN1 complex: elucidating PCNA subunit and client enzyme specificity. [PDF]

, 2006
The archaeal/eukaryotic proliferating cell nuclear antigen (PCNA) toroidal clamp interacts with a host of DNA modifying enzymes, providing a stable anchorage and enhancing their respective processivities.
Andrew S. Doré, Antony W. Oliver, Brunger, Bunting, CCP4, Chang, Chapados, Dalrymple, DeLano, Dianova, Dionne, Dionne, Emsley, Friedrich-Heineken, Gulbis, Helt, Hingorani, Hosfield, Kelman, Kong, Kontopidis, Krishna, Krokan, Laurence H. Pearl, Leslie, Mairi L. Kilkenny, Matsumiya, Matsumoto, Murante, Murshudov, Oyama, Parker, Parrilla-Castellar, Pearl, Roberts, S. Mark Roe, Sakurai, Sarah A. Jones, Shamoo, Shen, Smirnova, Stephen D. Bell, Storoni, Tom, Toueille, Tsuchimoto, Venclovas, Volkmer, Wang   +48 more
core   +4 more sources

Cyclopentane-peptide nucleic acids for qualitative, quantitative, and repetitive detection of nucleic acids.

Analytical Chemistry, 2013
We report the development of chemically modified peptide nucleic acids (PNAs) as probes for qualitative and quantitative detection of DNA. The remarkable stability of PNAs toward enzymatic degradation makes this class of molecules ideal to develop as ...
Christopher M. Micklitsch, B. Y. Oquare, Chao Zhao, D. Appella   +3 more
semanticscholar   +1 more source

Investigation of synthesis of cytosine-containing monomer for negatively charged peptide nucleic acids.

Тонкие химические технологии, 2007
A cytosine-containing monomer for negatively charged peptide nucleic acids has been prepared for the first time, and the ways of its synthesis have been optimized.
A. V. Baranov, N. S. Tsvid, V. I. Lukyanchenko, D. I. Prokhorov, Yu. G. Kirillova, V. I. Shvets   +5 more
doaj  

Complexation of fungal extracellular nucleic acids by host LL-37 peptide shapes neutrophil response to Candida albicans biofilm

Frontiers in Immunology
Candida albicans remains the predominant cause of fungal infections, where adhered microbial cells form biofilms - densely packed communities. The central feature of C.
Magdalena Juszczak, Magdalena Juszczak, Marcin Zawrotniak, Maria Rapala-Kozik   +3 more
doaj   +1 more source

Autocatalytic sets in a partitioned biochemical network [PDF]

arXiv, 2013
In previous work, RAF theory has been developed as a tool for making theoretical progress on the origin of life question, providing insight into the structure and occurrence of self-sustaining and collectively autocatalytic sets within catalytic polymer networks.
arxiv  

Fluorogenic PNA probes

Beilstein Journal of Organic Chemistry, 2018
Fluorogenic oligonucleotide probes that can produce a change in fluorescence signal upon binding to specific biomolecular targets, including nucleic acids as well as non-nucleic acid targets, such as proteins and small molecules, have applications in ...
Tirayut Vilaivan
doaj   +1 more source

A Self-Replicating Peptide Nucleic Acid [PDF]

arXiv, 2011
We report on a case of autocatalytic feedback in a template directed synthesis of a self-complementary hexa-PNA from two trimeric building blocks. The course of the reaction was monitored in the presence of increasing initial concentrations of product by means of RP-HPLC.
arxiv