ISDA: 6JP1

Deposition Date 2019-03-25

Release Date 2019-05-29

Last Version Date 2023-11-22

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 (Taxon ID: 9755)

Host Organism:

Escherichia coli

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

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Macromolecular Entities

Structures with similar UniProt ID

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Myoglobin
Gene (Uniprot):MB
Mutagens: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.

Liu, C, Yuan, H, Liao, F, Wei, C.W, Du, K.J, Gao, S.Q, Tan, X, Lin, Y.W.Show

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