Identification of Chemosensory Receptor Genes from Vertebrate Genomes

  • Yoshihito Niimura
Part of the Methods in Molecular Biology book series (MIMB, volume 1068)


Chemical senses are essential for the survival of animals. In vertebrates, mainly three different types of receptors, olfactory receptors (ORs), vomeronasal receptors type 1 (V1Rs), and vomeronasal receptors type 2 (V2Rs), are responsible for the detection of chemicals in the environment. Mouse or rat genomes contain >1,000 OR genes, forming the largest multigene family in vertebrates, and have >100 V1R and V2R genes as well. Recent advancement in genome sequencing enabled us to computationally identify nearly complete repertories of OR, V1R, and V2R genes from various organisms, revealing that the numbers of these genes are highly variable among different organisms depending on each species’ living environment. Here I would explain bioinformatic methods to identify the entire repertoires of OR, V1R, and V2R genes from vertebrate genome sequences.

Key words

Olfactory receptor Vomeronasal receptor Multigene family Bioinformatics Vertebrate G protein-coupled receptor 



This work was supported by grant (20770192 and 23770271) from the Ministry of Education, Culture, Sports, Science, and Technology, Japan.


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Copyright information

© Springer Science+Business Media, LLC 2013

Authors and Affiliations

  • Yoshihito Niimura
    • 1
  1. 1.Department of BioinformaticsMedical Research Institute, Tokyo Medical and Dental UniversityTokyoJapan

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