Technique for High-Quality Protein Crystal Growth by Control of Subgrain Formation under an External Electric Field

X-ray diffraction (XRD) rocking-curves were measured for tetragonal hen egg white (HEW) lysozyme crystals grown with and without application of an external electric field, and the crystal quality was assessed according to the full width at half-maximums (FWHMs) of each rocking-curve profile. The ave...

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Main Authors: Haruhiko Koizumi, Satoshi Uda, Kozo Fujiwara, Masaru Tachibana, Kenichi Kojima, Jun Nozawa
Format: Article
Language:English
Published: MDPI AG 2016-08-01
Series:Crystals
Subjects:
Online Access:http://www.mdpi.com/2073-4352/6/8/95
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author Haruhiko Koizumi
Satoshi Uda
Kozo Fujiwara
Masaru Tachibana
Kenichi Kojima
Jun Nozawa
author_facet Haruhiko Koizumi
Satoshi Uda
Kozo Fujiwara
Masaru Tachibana
Kenichi Kojima
Jun Nozawa
author_sort Haruhiko Koizumi
collection DOAJ
description X-ray diffraction (XRD) rocking-curves were measured for tetragonal hen egg white (HEW) lysozyme crystals grown with and without application of an external electric field, and the crystal quality was assessed according to the full width at half-maximums (FWHMs) of each rocking-curve profile. The average FWHMs for tetragonal HEW lysozyme crystals grown with an external electric field at 1 MHz were smaller than those for crystals grown without, especially for the 12 12 0 reflection. The crystal homogeneity of the tetragonal HEW lysozyme crystals was also improved under application of an external electric field at 1 MHz, compared to that without. Improvement of the crystal quality of tetragonal HEW lysozyme crystals grown under an applied field is discussed with a focus on subgrain formation. In addition, the origin of subgrain misorientation is also discussed with respect to the incorporation of impurities into protein crystals.
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spelling doaj.art-61a3a6a9e12c481694292e2f4304062c2022-12-22T04:22:57ZengMDPI AGCrystals2073-43522016-08-01689510.3390/cryst6080095cryst6080095Technique for High-Quality Protein Crystal Growth by Control of Subgrain Formation under an External Electric FieldHaruhiko Koizumi0Satoshi Uda1Kozo Fujiwara2Masaru Tachibana3Kenichi Kojima4Jun Nozawa5Institute for Materials Research, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577, JapanInstitute for Materials Research, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577, JapanInstitute for Materials Research, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577, JapanGraduate School of Nanobioscience, Yokohama City University, 22-2 Seto, Kanazawa-ku, Yokohama 236-0027, JapanDepartment of Education, Yokohama Soei University, 1 Miho-tyou, Midori-ku, Yokohama 226-0015, JapanInstitute for Materials Research, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577, JapanX-ray diffraction (XRD) rocking-curves were measured for tetragonal hen egg white (HEW) lysozyme crystals grown with and without application of an external electric field, and the crystal quality was assessed according to the full width at half-maximums (FWHMs) of each rocking-curve profile. The average FWHMs for tetragonal HEW lysozyme crystals grown with an external electric field at 1 MHz were smaller than those for crystals grown without, especially for the 12 12 0 reflection. The crystal homogeneity of the tetragonal HEW lysozyme crystals was also improved under application of an external electric field at 1 MHz, compared to that without. Improvement of the crystal quality of tetragonal HEW lysozyme crystals grown under an applied field is discussed with a focus on subgrain formation. In addition, the origin of subgrain misorientation is also discussed with respect to the incorporation of impurities into protein crystals.http://www.mdpi.com/2073-4352/6/8/95protein crystalscrystal qualityelectric fieldrocking curve
spellingShingle Haruhiko Koizumi
Satoshi Uda
Kozo Fujiwara
Masaru Tachibana
Kenichi Kojima
Jun Nozawa
Technique for High-Quality Protein Crystal Growth by Control of Subgrain Formation under an External Electric Field
Crystals
protein crystals
crystal quality
electric field
rocking curve
title Technique for High-Quality Protein Crystal Growth by Control of Subgrain Formation under an External Electric Field
title_full Technique for High-Quality Protein Crystal Growth by Control of Subgrain Formation under an External Electric Field
title_fullStr Technique for High-Quality Protein Crystal Growth by Control of Subgrain Formation under an External Electric Field
title_full_unstemmed Technique for High-Quality Protein Crystal Growth by Control of Subgrain Formation under an External Electric Field
title_short Technique for High-Quality Protein Crystal Growth by Control of Subgrain Formation under an External Electric Field
title_sort technique for high quality protein crystal growth by control of subgrain formation under an external electric field
topic protein crystals
crystal quality
electric field
rocking curve
url http://www.mdpi.com/2073-4352/6/8/95
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