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1BZR

ATOMIC RESOLUTION CRYSTAL STRUCTURE ANALYSIS OF NATIVE DEOXY AND CO MYOGLOBIN FROM SPERM WHALE AT ROOM TEMPERATURE

Summary for 1BZR
Entry DOI10.2210/pdb1bzr/pdb
DescriptorPROTEIN (MYOGLOBIN), SULFATE ION, PROTOPORPHYRIN IX CONTAINING FE, ... (5 entities in total)
Functional Keywordscarbonmonoxy myoglobin, atomic resolution, oxygen storage
Biological sourcePhyseter catodon (sperm whale)
Total number of polymer chains1
Total formula weight18071.57
Authors
Kachalova, G.S.,Popov, A.N.,Bartunik, H.D. (deposition date: 1998-11-03, release date: 1999-05-10, Last modification date: 2023-08-09)
Primary citationKachalova, G.S.,Popov, A.N.,Bartunik, H.D.
A steric mechanism for inhibition of CO binding to heme proteins.
Science, 284:473-476, 1999
Cited by
PubMed Abstract: The crystal structures of myoglobin in the deoxy- and carbon monoxide-ligated states at a resolution of 1.15 angstroms show that carbon monoxide binding at ambient temperatures requires concerted motions of the heme, the iron, and helices E and F for relief of steric inhibition. These steps constitute the main mechanism by which heme proteins lower the affinity of the heme group for the toxic ligand carbon monoxide.
PubMed: 10205052
DOI: 10.1126/science.284.5413.473
PDB entries with the same primary citation
Experimental method
X-RAY DIFFRACTION (1.15 Å)
Structure validation

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