Two olfactory marker proteins in Xenopus laevis.

  title={Two olfactory marker proteins in Xenopus laevis.},
  author={Patricia Roessler and Mario Mezler and Heinz Breer},
  journal={The Journal of comparative neurology},
  volume={395 3},
Mature olfactory receptor neurons of mammals are characterized by the expression of the highly conserved olfactory marker protein (OMP) encoded by single copy genes. In Xenopus laevis, two homologous genes encoding olfactory marker proteins have been identified that share a sequence identity with mammalian OMPs of about 50%. Sequence comparison revealed significant variability in the N-terminus and C-terminus regions; in contrast, two internal domains were highly conserved between amphibian and… 
The Endocannabinoid 2-Arachidonoyl-Glycerol Controls Odor Sensitivity in Larvae of Xenopus laevis
The endocannabinoid 2-arachidonoyl-glycerol (2-AG) is synthesized in both olfactory receptor neurons and glia-like sustentacular cells in larval Xenopus laevis and substantially influence food-seeking behavior.
Xath5 regulates neurogenesis in the Xenopus olfactory placode
  • Carole J. Burns, M. Vetter
  • Biology
    Developmental dynamics : an official publication of the American Association of Anatomists
  • 2002
It is argued that HLH genes are expressed in a cascade during olfactory placode development and that the activity of an atonal homologue, Xath5, can promote ORN fate but only in the appropriate developmental context.
Selective targeting of zebrafish olfactory receptor neurons by the endogenous OMP promoter
The olfactory nervous system of fish, in particular zebrafish, has become a valid model for that of higher vertebrates. However, no genetic markers for olfactory specific cell types, e.g. the
Regulation by Protein Kinase A Switching of Axonal Pathfinding of Zebrafish Olfactory Sensory Neurons through the Olfactory Placode–Olfactory Bulb Boundary
It is proposed that the regulation of PKA signaling plays a key role in the long-distance axonal pathfinding through intermediate guideposts in neural network formation through intermediate guidesposts.
Ultrastructural and immunohistochemical characteristics of the olfactory organ cardinal tetra, Paracheirodon axelrodi (Characiformes: Characidae)
Based on the histological, immunohistochemical, and ultrastructural descriptions, all characteristic sensory and nonsensory cell types of the olfactory epithelium of teleost fish were identified and three types of olfatory receptor neurons were identified: ciliated, microvilli, and crypt cells.
Olfactory marker protein regulates refinement of the olfactory glomerular map
Functional heterogeneity in sensory input within individual glomeruli is documented and its anatomical correlate is uncovered, revealing an unexpected role for OMP in the formation and refinement of the glomerular olfactory map.
Intranasal Location and Immunohistochemical Characterization of the Equine Olfactory Epithelium
Analysis of the complete noses of five adult horses revealed that in the equine OE two epithelial subtypes with distinct marker expression exist, designated as types a and b which resemble those previously described in dogs, and protein expression profile was comparable to canine and rodent OE.
Serotonergic Modulation of the Olfactory Bulb
It is shown that the serotonergic system plays a role in olfactory bulb coding on fast time scales (hundreds of milliseconds to seconds), and the raphe nuclei are also involved in fast sub-second top-down modulation, similar to cortical feedback.
2 . 17 Evolution of Vertebrate Olfactory Subsystems
Exotic Models May Offer Unique Opportunities to Decipher Specific Scientific Question: The Case of Xenopus Olfactory System
The idea that biological diversity should be taken advantage of to address specific scientific questions is illustrated and it is shown that the Xenopus olfactory system is a very good model to investigate: first, olfaction in aerial versus aquatic conditions and second, mechanisms underlying postnatal reorganization of the olf factory system especially those controlled by tyroxine hormone.