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In previous studies, we have compared the immunochemical properties, the in vivo pharmacokinetics, and the tumor penetrance of a radioiodinated single-chain Fv (sFv) in comparison with other immunoglobulin (Ig) forms (intact IgG, F(ab')2, and Fab') (Cancer Res., 51: 6363-6371, 1991). Biodistribution studies demonstrated a higher percent injected dose/g in(More)
Signaling levels within sensory neurons must be tightly regulated to allow cells to integrate information from multiple signaling inputs and to respond to new stimuli. Herein we report a new role for the cGMP-dependent protein kinase EGL-4 in the negative regulation of G protein-coupled nociceptive chemosensory signaling. C. elegans lacking EGL-4 function(More)
G protein-coupled receptor kinases (GRKs) are key regulators of signal transduction that specifically phosphorylate activated G protein-coupled receptors (GPCRs) to terminate signaling. Biochemical and crystallographic studies have provided great insight into mammalian GRK2/3 interactions and structure. However, despite extensive in vitro characterization,(More)
All animals rely on their ability to sense and respond to their environment to survive. However, the suitability of a behavioral response is context-dependent, and must reflect both an animal's life history and its present internal state. Based on the integration of these variables, an animal's needs can be prioritized to optimize survival strategies.(More)
" blue-fluorescent antibody " EP2-19G2 should really be called a " blue-emissive " or " blue-luminescent " antibody. Because roughly 3 eV of photon energy is stored in the charge-transfer excited state, it is predicted to be both a powerful reductant and oxidant. We examined the redox activity of the charge-transfer state in experiments in which irradiation(More)
Behavioral differences between sexes are evident across many species. The underlying mechanisms surrounding such differences are not fully elucidated, however, due to the complexities of animal behavior. The nematode Caenorhabditis elegans (C. elegans) is a well-characterized, genetically amenable species with two sexes, hermaphrodites (XX) and males (XO).(More)
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