ISDA

Deposition Date 2011-11-14

Release Date 2011-11-30

Last Version Date 2024-10-23

Entry Detail

PDB ID:

4A7D

Keywords:

HYDROLASE

Title:

X-ray crystal structure of HEWL flash-cooled at high pressure

Biological Source:

Source Organism:

GALLUS GALLUS (Taxon ID: 9031)

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

1.50 Å

R-Value Free:

0.20

R-Value Work:

0.17

R-Value Observed:

0.17

Space Group:

P 43 21 2

Download Validation Report

Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Molecule:LYSOZYME C
Gene (Uniprot):LYZ
Chain IDs:A
Chain Length:129
Number of Molecules:1
Biological Source:GALLUS GALLUS

UniProt ID:P00698 Pfam ID:PF00062 EC:3.2.1.17

Ligand Molecules

Primary Citation

Fast High-Pressure Freezing of Protein Crystals in Their Mother Liquor

Burkhardt, A, Warmer, M, Pannerselvam, S, Wagner, A, Zouni, A, Reimer, R, Hohenberg, H, Meents, A.Show

Acta Crystallogr.,Sect.F 68 495 ? (2012)

PMID: 22505429 DOI: 10.1107/S1744309112009670

Abstact

High-pressure freezing (HPF) is a method which allows sample vitrification without cryoprotectants. In the present work, protein crystals were cooled to cryogenic temperatures at a pressure of 210 MPa. In contrast to other HPF methods published to date in the field of cryocrystallography, this protocol involves rapid sample cooling using a standard HPF device. The fast cooling rates allow HPF of protein crystals directly in their mother liquor without the need for cryoprotectants or external reagents. HPF was first attempted with hen egg-white lysozyme and cubic insulin crystals, yielding good to excellent diffraction quality. Non-cryoprotected crystals of the membrane protein photosystem II have been successfully cryocooled for the first time. This indicates that the presented HPF method is well suited to the vitrification of challenging systems with large unit cells and weak crystal contacts.

Legend

Protein

Chemical

Disease

Primary Citation of related structures