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Article

Detection of near-atmospheric concentrations of CO2 by an olfactory subsystem in the mouse.

Science (New York, N.Y.) - 17 Aug 2007

Hu Ji, Zhong Chun, Ding Cheng, Chi Qiuyi, Walz Andreas, Mombaerts Peter, Matsunami Hiroaki, Luo Minmin

Abstract excerpt

Carbon dioxide (CO2) is an important environmental cue for many organisms but is odorless to humans. It remains unclear whether the mammalian olfactory system can detect CO2 at concentrations around the average atmospheric level (0.038%). We demonstrated the expression of carbonic anhydrase type II (CAII), an enzyme that catabolizes CO2, in a subset of mouse olfactory neurons that express guanylyl cyclase D...

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PMID: 17702944
DOI: 10.1126/science.1144233

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PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 7 Sept 2026. Manifest publication-graph-cohort-2026-09-07.1.

Source receipt: pubmed, retrieved 7 Sept 2026.

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