3lr7

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Ferric horse heart myoglobin, nitrite adduct

Structural highlights

3lr7 is a 1 chain structure with sequence from Equus caballus. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:X-ray diffraction, Resolution 1.6Å
Ligands:HEM, NO2, SO4
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

MYG_HORSE Serves as a reserve supply of oxygen and facilitates the movement of oxygen within muscles.

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 PubMed

Exposure of a single crystal of the nitrite adduct of ferric myoglobin (Mb) at 100 K to high-intensity synchrotron X-ray radiation resulted in changes in the UV-vis spectrum that can be attributed to reduction of the ferric compound to the ferrous derivative. We employed correlated single-crystal spectroscopy with crystallography to further characterize this photoproduct. The 1.55 A resolution crystal structure of the photoproduct reveals retention of the O-binding mode for binding of nitrite to the iron center. The data are consistent with cryogenic generation and trapping, at 100 K, of a ferrous d(6) Mb(II)(ONO)* complex by photoreduction of the ferric precursor crystals using high-intensity X-ray radiation.

Synchrotron X-ray-Induced Photoreduction of Ferric Myoglobin Nitrite Crystals Gives the Ferrous Derivative with Retention of the O-Bonded Nitrite Ligand.,Yi J, Orville AM, Skinner JM, Skinner MJ, Richter-Addo GB Biochemistry. 2010 Jun 28. PMID:20568729[1]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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Citations
1 reviews cite this structure
Nitrite and nitrite reductases: from molecular mechanisms to significance in human health and disease.
Castiglione et al. (2012)
0 more
23 other articles
No citations found

See Also

References

  1. ↑ Yi J, Orville AM, Skinner JM, Skinner MJ, Richter-Addo GB. Synchrotron X-ray-Induced Photoreduction of Ferric Myoglobin Nitrite Crystals Gives the Ferrous Derivative with Retention of the O-Bonded Nitrite Ligand. Biochemistry. 2010 Jun 28. PMID:20568729 doi:10.1021/bi100801g

Contents


PDB ID 3lr7

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