Unraveling chemosensory diversity

Article Abstract:

The ability to recognize and differentiate chemicals in the atmosphere occurs through complex processes in animals. The responses in lower organisms follow a standard pattern. There are some similarities as well as marked differences in the responses between the vertebrates and invertebrates. The chemosensory perception in Caenorhabditis elegans is similar to the mechanism in vertebrates. In mammals, the olfactory stimuli are detected by the olfactory epithelium (OE) and vomeronasal organ. The OE can be recognized by 1000 different G-protein-coupled odorant receptors.

Observations, Caenorhabditis elegans, Mammals

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An mRNA cap binding protein, ABH1, modulates early abscisic acid signal transduction in Arabidopsis

Article Abstract:

A recessive abscisic acid hypersensitive Arabidopsis mutant, termed abh1, encodes the homolog of a nuclear mRNA cap binding protein and binds the mRnA cap structure. Data indicate that abh1 exhibits abscisic acid hypersensitivity in early abscisic acid signaling and establishes a link between mRNA processing and early abscisic acid signal transduction.

Plant hormones, Arabidopsis, Abscisic acid

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Covalent modification regulates ligand binding to receptor complexes in the chemosensory system of Escherichia coli

Article Abstract:

Results show that covalent modification of the ternary complex between chemosensory system and two other cytoplasmic protein components influences ligand binding to receptors in Escherichia coli. Data point out that complex formation is essential for modification to take place.

Analysis, Usage, Escherichia coli, Ligand binding (Biochemistry)

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