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The aim of our study was to annotate sequences for 35 putative globins from the nematode Caenorhabditis elegans. All these proteins are expressed, but seven of these differ from the gene predictions in Wormbase. The entire polypeptide sequences for 31 genes and the core globin domain of four...
Hemoglobin and related heme proteins, generally referred to as 'globins', reversibly bind gaseous diatomic ligands (O2, NO, and CO) to a penta‐coordinate heme iron atom, the ligand filling the sixth coordination site. Over the last decade, several new globins have been reported to display a...
Neuroglobin, cytoglobin, and hemoglobins from Drosophila melanogaster and Arabidopsis thaliana were studied for their ligand binding properties versus temperature. These globins have a common feature of being hexacoordinated (via the distal histidine) under deoxy conditions, displaying an...
The physiological role of neuroglobin and cytoglobin, two vertebrate globins discovered in the last 5 years, is not yet clearly understood. In this work, we review the structural information on these globins and its implication on the possible protein functions, obtained by electron paramagnetic...
Neuroglobin and cytoglobin are recently discovered respiratory proteins of vertebrates with yet ill‐defined physiological functions. Neuroglobin is widely expressed in neurons, but not glia, in the vertebrate central and peripheral nervous systems. Other major expression sites are the retina...
In analogy to hemoglobin (Hb) and myoglobin (Mb), neuroglobin (Ngb) and cytoglobin (Cygb) are supposed to be involved in oxygen (O2) storage and delivery. The Cygb gene harbours both conserved HREs and mRNA stabilization sites, strongly suggestive of an oxygen‐dependent regulation. We examined...
Hemoglobin and myoglobin are oxygen transport and storage proteins of most vertebrates. Neuroglobin (Ngb) and cytoglobin (Cygb) ‐ two recent additions to the vertebrate globin superfamily ‐ have still disputed functions. Combining the data from all available resources, we investigate the...
Neuroglobin and cytoglobin are two recently discovered vertebrate globins, which are expressed at low levels in neuronal tissues and in all tissues investigated so far, respectively. Based on their amino acid sequences, these globins appear to be phylogenetically ancient and to have mutated less...
The expression of nerve hemoglobins in invertebrates is a well‐established fact, but this occurrence is uncommon. In the species where nerve globins occur, they probably function as an oxygen store for sustaining activity of the nerves during anoxic conditions. Although invertebrate nerve...
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