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@INPROCEEDINGS{Schrader:860659,
author = {Schrader, Tobias Erich},
title = {{N}eutron protein crystallography: {N}ew developments and
recent application examples},
school = {Universität Wien},
reportid = {FZJ-2019-01327},
year = {2018},
abstract = {With the advent of new instruments (e. g. Imagine at HFIR,
MANDI at SNS and BIODIFF at FRMII) neutron protein
crystallography has seen a resurrection from the past
pioneering work by Goldstein et al. A growing user community
has greatly enhanced the outcome of the existing neutron
diffractometers specialized on protein crystallography.
Measurements at 100 K are now routinely possible at many
neutron diffractometers. Efforts to increase the flux at the
sample position and to reduce the background at the detector
push the limit of crystal volumes down to 0.1 mm3. The
neutron single crystal diffractometer BIODIFF at the
research reactor Heinz Maier-Leibnitz (FRM II) is is a joint
project of the Jülich Centre for Neutron Science (JCNS) and
the FRM II. BIODIFF is designed as a monochromatic
instrument with a narrow wavelength spread of less than 3
$\%$ where the central wavelength can be adapted between 2.7
and 5.6 Å. Some typical application examples to illustrate
the power of neutron protein crystallography will be given.
Time permitting I will report on two of my own research
projects. In one collaboration with the TUM engineering
department we try to optimize the crystallization of the
protein Alcoholdehydrogenase (ADH) by mutations on the
solvent exposed surface of the protein. The thermodynamic
effects on the crystal stability are simulated with all-atom
MD-simulations. The MD-results will be compared to the
actually observed crystallization behaviour of these
mutants. In a second project a crystallization apparatus is
developed which starts where the crystallization for x-ray
sized crystals ends: At a tiny crystal and known
crystallization conditions for it. The apparatus is intended
to be used to increase the size of this crystal by using it
as a seed crystal being put into a mother liquor containing
new supply of highly concentrated protein. Fine temperature
control and an optical control of the actual crystal size
will be provided with this apparatus. The idea behind this
apparatus is of course the growth of crystals which have a
sufficient volume for neutron protein crystallography.},
month = {Jun},
date = {2018-06-21},
organization = {Mondern Concepts Seminar, Universität
Wien, Wien (Austria), 21 Jun 2018 - 22
Jun 2018},
subtyp = {Invited},
cin = {JCNS-FRM-II / Neutronenstreuung ; JCNS-1},
cid = {I:(DE-Juel1)JCNS-FRM-II-20110218 /
I:(DE-Juel1)JCNS-1-20110106},
pnm = {6G15 - FRM II / MLZ (POF3-6G15) / 6G4 - Jülich Centre for
Neutron Research (JCNS) (POF3-623) / 6215 - Soft Matter,
Health and Life Sciences (POF3-621)},
pid = {G:(DE-HGF)POF3-6G15 / G:(DE-HGF)POF3-6G4 /
G:(DE-HGF)POF3-6215},
experiment = {EXP:(DE-MLZ)BIODIFF-20140101},
typ = {PUB:(DE-HGF)31},
url = {https://juser.fz-juelich.de/record/860659},
}