A vertebrate globin expressed in the brain
A vertebrate globin expressed in the brain
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DOI:
10.1038/35035093
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发表时间:
2000-09-28
期刊:
影响因子:
64.8
通讯作者:
Hankeln, T
中科院分区:
文献类型:
--
作者:
Burmester, T;Weich, B;Hankeln, T
Haemoglobins and myoglobins constitute related protein families that function in oxygen transport and storage in humans and other vertebrates(1,2). 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, P(50) approximate to 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.