ISDA: 4FWZ

Deposition Date 2012-07-02

Release Date 2012-07-18

Last Version Date 2024-02-28

Entry Detail

PDB ID:

4FWZ

Keywords:

TRANSPORT PROTEIN

Title:

Aquoferric CuB myoglobin (L29H F43H sperm whale myoglobin)

Biological Source:

Source Organism:

Physeter catodon (Taxon ID: 9755)

Host Organism:

Escherichia coli

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

1.90 Å

R-Value Observed:

0.20

Space Group:

P 21 21 21

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Macromolecular Entities

Structures with similar UniProt ID

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Myoglobin
Gene (Uniprot):MB
Mutagens:L29H, F43H
Chain IDs:A
Chain Length:153
Number of Molecules:1
Biological Source:Physeter catodon

UniProt ID:P02185 Pfam ID:PF00042

Ligand Molecules

HEM

Primary Citation

A Designed Functional Metalloenzyme that Reduces O(2) to H(2) O with Over One Thousand Turnovers.

Miner, K.D, Mukherjee, A, Gao, Y.G, Null, E.L, Petrik, I.D, Zhao, X, Yeung, N, Robinson, H, Lu, Y.Show

Angew.Chem.Int.Ed.Engl. 51 5589 5592 (2012)

PMID: 22539151 DOI: 10.1002/anie.201201981

Abstact

[Image: see text] Rational design of functional enzymes with high turnovers is a significant challenge, especially those with complex active site and difficult reactions, such as in respiratory oxidases. Introducing 2 His and 1 Tyr into myoglobin resulted in designed enzymes that reduce O2 to H2O with > 1000 turnovers and minimal release of reactive oxygen species. This also showed that presence and positioning of Tyr, not Cu, are critical for activity.

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