ISDA

Entry Detail

PDB ID:

5AVD

Keywords:

ISOMERASE

Title:

The 0.86 angstrom structure of elastase crystallized in high-strength agarose hydrogel

Biological Source:

Source Organism:

Sus scrofa

Host Organism:

Escherichia coli

PDB Version:

Deposition Date:

2015-06-15

Release Date:

2015-07-08

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

0.86 Å

R-Value Free:

0.13

R-Value Work:

0.12

R-Value Observed:

0.12

Space Group:

P 21 21 21

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Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Description:Chymotrypsin-like elastase family member 1
Chain IDs:A
Chain Length:240
Number of Molecules:1
Biological Source:Sus scrofa

UniProt ID:P00772 Pfam ID:PF00089 EC:3.4.21.36

Ligand Molecules

SO4

Primary Citation

Growth of protein crystals in hydrogels prevents osmotic shock

Sugiyama, S, Maruyama, M, Sazaki, G, Hirose, M, Adachi, H, Takano, K, Murakami, S, Inoue, T, Mori, Y, Matsumura, H.Show

J.Am.Chem.Soc. 134 5786 5789 (2012)

PMID: 22435400 DOI: 10.1021/ja301584y

Abstact

High-throughput protein X-ray crystallography offers a significant opportunity to facilitate drug discovery. The most reliable approach is to determine the three-dimensional structure of the protein-ligand complex by soaking the ligand in apo crystals. However, protein apo crystals produced by conventional crystallization in a solution are fatally damaged by osmotic shock during soaking. To overcome this difficulty, we present a novel technique for growing protein crystals in a high-concentration hydrogel that is completely gellified and exhibits high strength. This technique allowed us essentially to increase the mechanical stability of the crystals, preventing serious damage to the crystals caused by osmotic shock. Thus, this method may accelerate structure-based drug discoveries.

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