2dc3
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Crystal structure of human cytoglobin at 1.68 angstroms resolution
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Structural highlights
FunctionCYGB_HUMAN May have a protective function during conditions of oxidative stress. May be involved in intracellular oxygen storage or transfer. Evolutionary Conservation![]() Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf. Publication Abstract from PubMedCytoglobin (Cgb) is a recently discovered member of the vertebrate haem-containing globin family. The structure of a new crystal form of wild-type human Cgb (space group C2) was determined at a resolution of 1.68 Angstrom. The results show the presence of an additional helix in the N-terminal residues (4-20) prior to the A helix and an ordered loop structure in the C-terminal region (168-188), while these extended peptides were invisible owing to disorder in the previously reported structures using a P3(2)21 crystal at a resolution of 2.4 Angstrom. A detailed comparison of the two crystal structures shows differences in the conformation of the residues (i.e. Arg84) in the haem environment owing to a different dimeric arrangement. High-resolution structure of human cytoglobin: identification of extra N- and C-termini and a new dimerization mode.,Makino M, Sugimoto H, Sawai H, Kawada N, Yoshizato K, Shiro Y Acta Crystallogr D Biol Crystallogr. 2006 Jun;62(Pt 6):671-7. Epub 2006, May 12. PMID:16699195[1] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. References
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