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PMID: 7082286 Published · ppublish English Journal Article

Identification of a specific olfactory receptor for 2-isobutyl-3-methoxypyrazine.

The Biochemical journal ·Vol. 201 ·No. 1 ·1982-01-01 ·Pages 245-8

Pelosi P, Baldaccini NE, Pisanelli AM

Abstract

2-Isobutyl-3-methoxypyrazine, a potent bell-pepper odorant, binds to cow olfactory mucosa homogenate. The receptor is saturable in the micromolar range and is competitively inhibited by other bell-pepper odourants, but not by other pyrazines of different odours. Other tissues do not bind 2-isobutyl-3-methoxypyrazine at a significant extent. We suggest that this receptor is involved in odour discrimination.

MeSH Terms
Animals Binding, Competitive Cattle Female Ligands Olfactory Mucosa/metabolism Pyrazines/metabolism Rabbits Rats Sensory Receptor Cells/metabolism Species Specificity
Chemicals
Ligands Pyrazines 2-isobutyl-3-methoxypyrazine
Authors & Affiliations
3 authors, click to expand affiliations / ORCID
Pelosi P
Baldaccini N E
Pisanelli A M
References (5)
5 references, click to expand
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  2. Biochemical studies of olfaction: binding specificity of radioactively labeled stimuli to an isolated olfactory preparation from rainbow trout (Salmo gairdneri).
    Proc Natl Acad Sci U S A. 1978 Oct;75(10):4679-83 PMID: 283385
  3. Molecular mechanisms of olfactory reception. IV. Some biochemical characteristics of the camphor receptor from rat olfactory epithelium.
    Biochim Biophys Acta. 1979 Oct 18;587(3):424-32 PMID: 45003
  4. Biochemical studies of olfaction: isolation, characterization, and odorant binding activity of cilia from rainbow trout olfactory rosettes.
    Proc Natl Acad Sci U S A. 1980 Aug;77(8):4412-6 PMID: 6449006
  5. Protein measurement with the Folin phenol reagent.
    J Biol Chem. 1951 Nov;193(1):265-75 PMID: 14907713
Article Info
Journal
The Biochemical journal
Abbr.
Biochem J
ISSN
0264-6021
Published
1982-01-01
Pages
245-8
Language
English
Region
England
NLM ID
2984726R
PMCID
PMC1163633
Subset
IM
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