6JP1 image
Entry Detail
PDB ID:
6JP1
Keywords:
OXYGEN TRANSPORT
Title:
An X-ray structure of met sperm whale F43Y/T67R myoglobin with Tyr-heme double cross-links
Biological Source:
Source Organism:
Physeter catodon
Host Organism:
Escherichia coli
PDB Version:
Deposition Date:
2019-03-25
Release Date:
2019-05-29
Method Details:
Experimental Method:
X-RAY DIFFRACTION
Resolution:
1.99 Å
R-Value Free:
0.22
R-Value Work:
0.17
R-Value Observed:
0.17
Space Group:
P 1 21 1
6JP1 validation report
Macromolecular Entities
Protein Blast
Polymer Type:polypeptide(L)
Description:Myoglobin
Mutations:F43Y, T67R
Chain IDs:A, B
Chain Length:151
Number of Molecules:2
Biological Source:Physeter catodon
UniProt ID:P02185 Pfam ID:PF00042
Ligand Molecules
HEM
Primary Citation
Unique Tyr-heme double cross-links in F43Y/T67R myoglobin: an artificial enzyme with a peroxidase activity comparable to that of native peroxidases.
Chem.Commun.(Camb.) 55 6610 6613 (2019)
PMID: 31119219 DOI: 10.1039/c9cc02714a

Abstact

The X-ray crystal structure of F43Y/T67R myoglobin revealed unique Tyr-heme double cross-links between Tyr43 and the heme 4-vinyl group, which represents a novel post-translational modification of heme proteins. Moreover, with the feature of a distal His-Arg pair, the designed artificial enzyme exhibited a peroxidase activity comparable to that of native peroxidases, such as the most efficient horseradish peroxidase.

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Primary Citation of related structures
6JP1