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A vertebrate globin expressed in the brain
Naturevolume 407, pages520–523 (2000)Cite this article
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Abstract
Haemoglobins and myoglobins constitute related protein families that function in oxygen transport and storage in humans and other vertebrates1,2. Here we report the identification of a third globin type in man and mouse. This protein is predominantly expressed in the brain, and therefore we have called it neuroglobin. Mouse neuroglobin is a monomer with a high oxygen affinity (half saturation pressure,P50 ≈ 2 torr). Analogous to myoglobin, neuroglobin may increase the availability of oxygen to brain tissue. The human neuroglobin gene (NGB), located on chromosome 14q24, has a unique exon–intron structure. Neuroglobin represents a distinct protein family that diverged early in metazoan evolution, probably before the Protostomia/Deuterostomia split.
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Acknowledgements
We wish to thank R. Gebhardt and N. Hellmann for their help with the oxygen-binding studies; G. Ungerechts for his assistance in the cloning; E. Jaenicke for running the FPLC; L. Moens and S. Dewilde for sharing experimental protocols and for discussions; and H. Decker, E. R. Schmidt and J. Markl for excellent working facilities, continuous support and valuable suggestions. This work is supported by the Deutsche Forschungsgemeinschaft (DFG) and the Naturwissenschaftlich-Medizinisches Forschungszentrum (NMFZ) Mainz.
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Thorsten Burmester, Sigrid Reinhardt and Thomas Hankeln: These authors contributed equally to this work
Authors and Affiliations
Institutes of Zoology,,
Thorsten Burmester
Molecular Genetics, Biosafety Research and Consulting,
Bettina Weich & Thomas Hankeln
Physiological Chemistry, Johannes Gutenberg University Mainz, Mainz, D-55099, Germany
Sigrid Reinhardt
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Burmester, T., Weich, B., Reinhardt, S.et al. A vertebrate globin expressed in the brain.Nature407, 520–523 (2000). https://doi.org/10.1038/35035093
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