Words similar to opossum
Example sentences for: opossum
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The opossum alpha-2C adrenergic receptor has a EESSTSE acidic serine/threonine motif in the third intracellular loop (Figures 1and 2), which could be a substrate for GRK based on the EESSSSD motif of the alpha-2A subtype.
Similarly, mutation of only two serine residues in the human alpha-2A receptor resulted in a loss of desensitization [ 12 ] . Because the EESSSSE motif in the human alpha-2A receptor is a known GRK substrate, and because eliminating two potential phosphorylation sites prevents down-reguation, phosphorylation of the opossum alpha-2C receptor may be important in the mechanism of down-regulation of this receptor.
The gray short-tailed opossum ( Monodelphis domestica ), a small (60-150 g) marsupial native to scrub forests of southeastern Brazil, provides new opportunities for study of olfactory communication and pheromonal activation of reproduction.
Estradiol concentrations in plasma were measured with a RIA validated for female opossum plasma in our laboratory [ 19 ] . The antiserum, a gift from R.L.
Sixty grams is confirmed as a critical body mass for induction of estrus in juvenile female opossums as identified in our previous study [ 7 ] . Somatic growth and attainment of a threshold body mass or energy reserves are known requisites for puberty in many mammals including the tammar wallaby [ 26 ] , sheep [ 27 28 ] , and several species of rodents [ 1 ] , but these factors seldom act independently of environmental factors such as photoperiod [ 26 27 ] or social cues [ 3 29 ] . The opossum is unusual in this regard, because social cues in the form of male pheromone appear to stimulate both somatic growth and ovarian activation.
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