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• (author = "Hans, G" AND subject = "Biological Sciences")
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author = "Hans, G" > : "Biological Sciences" (x)
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Found 6 documents, displaying page 1 of 1

A model for individual and collective cell movement in Dictyostelium discoideum

Author(s) : Palsson, Eirikur , Othmer, Hans G.
Description : The cellular slime mold Dictyostelium discoideum is a widely used model system for studying a variety of basic processes in development, including cell–cell signaling, signal transduction, pattern formation, cell motility, and the movement of tissue-like aggregates of cells. Many aspects of cell mot...
Repository : Europe PubMed Central
Language(s) : English

A model of excitation and adaptation in bacterial chemotaxis

Author(s) : Spiro, Peter A. , Parkinson, John S. , Othmer, Hans G.
Description : Bacterial chemotaxis is widely studied because of its accessibility and because it incorporates processes that are important in a number of sensory systems: signal transduction, excitation, adaptation, and a change in behavior, all in response to stimuli. Quantitative data on the change in behav...
Repository : Europe PubMed Central
Language(s) : English

Robust, bistable patterning of the dorsal surface of the Drosophila embryo

Author(s) : Umulis, David M. , Serpe, Mihaela , O’Connor, Michael B. , Othmer, Hans G.
Description : In many developing systems, the fate of a cell is determined by its position in a time-independent spatial distribution of a morphogen. However, during dorsal–ventral patterning in the Drosophila embryo, an initial low-level signal refines to a narrow, high-intensity band. This refinement suggests t...
Repository : Europe PubMed Central
Language(s) : English

Peptide nucleic acid–DNA duplexes: Long range hole migration from an internally linked anthraquinone

Author(s) : Armitage, Bruce , Ly, Danith , Koch, Troels , Frydenlund, Henrik , Ørum, Henrik , Batz, Hans G. , Schuster, Gary B.
Description : The discovery that peptide nucleic acids (PNA) mimic DNA and RNA by forming complementary duplex structures following Watson–Crick base pairing rules opens fields in biochemistry, diagnostics, and medicine for exploration. Progress requires the development of modified PNA duplexes having unique and ...
Repository : Europe PubMed Central
Language(s) : English

Regulation of thylakoid protein phosphorylation at the substrate level: Reversible light-induced conformational changes expose the phosphorylation site of the light-harvesting complex II

Author(s) : Zer, Hagit , Vink, Martin , Keren, Nir , Dilly-Hartwig, Hans G. , Paulsen, Harald , Herrmann, Reinhold G. , Andersson, Bertil
Description : Light-dependent activation of thylakoid protein phosphorylation regulates the energy distribution between photosystems I and II of oxygen-evolving photosynthetic eukaryotes as well as the turnover of photosystem II proteins. So far the only known effect of light on the phosphorylation process is the...
Repository : Europe PubMed Central
Language(s) : English

Endogenous expression of HrasG12V induces developmental defects and neoplasms with copy number imbalances of the oncogene

Author(s) : Chen, Xu , Mitsutake, Norisato , LaPerle, Krista , Akeno, Nagako , Zanzonico, Pat , Longo, Valerie A. , Mitsutake, Shin
Description : We developed mice with germline endogenous expression of oncogenic Hras to study effects on development and mechanisms of tumor initiation. They had high perinatal mortality, abnormal cranial dimensions, defective dental ameloblasts, and nasal septal deviation, consistent with some of the features o...
Repository : Europe PubMed Central
Language(s) : English
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Found 6 documents, displaying page 1 of 1