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In mammals, olfaction is mediated by two distinct organs that are located in the nasal cavity: the main olfactory epithelium (MOE) that binds volatile odorants is responsible for the conscious perception of odors, and the vomeronasal organ (VNO) that binds pheromones is responsible for various behavioral and neuroendocrine responses between individuals of a same species. Odorants and pheromones bind...
Antimicrobial peptides provide a defense system against microorganisms. One class of these molecules binds lipophilic substrates and is therefore directed against gram-negative bacteria. This family includes proteins related to bactericidal/permeability-increasing protein (BPI). We characterized an ~100-kb cluster of three human genes named RYSR, RYA3, and RY2G5 that are related to the BPI family...
The gene encoding myosin light chain kinase (MYLK) is duplicated on human chromosome 3 (HSA3; 3p13;3q21) and on a chromosome with conserved synteny to HSA3 in most non-human primate species. In human, the functional copy resides on 3q21, whereas the 3p13 site contains a pseudogene. To trace the origin of the duplication, we characterized the mouse gene Mylk. A single sequence corresponding to the...
The olfactory receptor (OR) multigene family is widely distributed in the human genome. We characterize here a new cluster of four OR genes (HGMW-approved symbols OR7E20P, OR7E6P, OR7E21P, and OR7E22P) on human chromosome 3p13 that is contained in an ∼250-kb region. This region has been physically mapped, and a 106-kb portion containing the OR genes has been sequenced. All the OR sequences are disrupted...
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