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Designing proteins to crystallize through beta-strand pairing

Wingren, Christer LU ; Edmundson, AB and Borrebaeck, Carl LU (2003) In Protein Engineering 16(4). p.255-264
Abstract
Inherent difficulties in growing protein crystals are major concerns within structural biology and particularly in structural proteomics. Here, we describe a novel approach of engineering target proteins by surface mutagenesis to increase the odds of crystallizing the molecules. To this end, we have exploited our recent triad-hypothesis using proteins with crystallographically defined beta-structures as the principal models. Crystal packing analyses of 182 protein structures belonging to 21 different superfamilies implied that the propensities to crystallize could be engineered into target proteins by replacing short segments, 5-6 residues, of their beta-strands with 'cassettes' of suitable packing motifs. These packing motifs will... (More)
Inherent difficulties in growing protein crystals are major concerns within structural biology and particularly in structural proteomics. Here, we describe a novel approach of engineering target proteins by surface mutagenesis to increase the odds of crystallizing the molecules. To this end, we have exploited our recent triad-hypothesis using proteins with crystallographically defined beta-structures as the principal models. Crystal packing analyses of 182 protein structures belonging to 21 different superfamilies implied that the propensities to crystallize could be engineered into target proteins by replacing short segments, 5-6 residues, of their beta-strands with 'cassettes' of suitable packing motifs. These packing motifs will generate specific crystal packing interactions that promote crystallization. Key features of the primary and tertiary structures of such packing motifs have been identified for immunoglobulins. Further, packing motifs have been engineered successfully into six model antibodies without disturbing their capabilities to be produced, their immunoreactivity and their overall structure. Preliminary crystallization analyses have also been performed. Taken together, the procedures outline a rational protocol for crystallizing proteins by surface mutagenesis. The importance of these findings is discussed in relation to the crystallization of proteins in general. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
structural proteomics, protein crystallization, crystal engineering, directed crystallization, triad-hypothesis
in
Protein Engineering
volume
16
issue
4
pages
255 - 264
publisher
Oxford University Press
external identifiers
  • wos:000182742900003
  • pmid:12736368
ISSN
1460-213X
DOI
10.1093/proeng/gzg038
language
English
LU publication?
yes
id
023980a7-972c-4e3a-b0e8-a11efd5b09a7 (old id 311090)
alternative location
http://peds.oxfordjournals.org/cgi/content/abstract/16/4/255
date added to LUP
2007-09-24 08:57:26
date last changed
2017-12-04 15:45:55
@article{023980a7-972c-4e3a-b0e8-a11efd5b09a7,
  abstract     = {Inherent difficulties in growing protein crystals are major concerns within structural biology and particularly in structural proteomics. Here, we describe a novel approach of engineering target proteins by surface mutagenesis to increase the odds of crystallizing the molecules. To this end, we have exploited our recent triad-hypothesis using proteins with crystallographically defined beta-structures as the principal models. Crystal packing analyses of 182 protein structures belonging to 21 different superfamilies implied that the propensities to crystallize could be engineered into target proteins by replacing short segments, 5-6 residues, of their beta-strands with 'cassettes' of suitable packing motifs. These packing motifs will generate specific crystal packing interactions that promote crystallization. Key features of the primary and tertiary structures of such packing motifs have been identified for immunoglobulins. Further, packing motifs have been engineered successfully into six model antibodies without disturbing their capabilities to be produced, their immunoreactivity and their overall structure. Preliminary crystallization analyses have also been performed. Taken together, the procedures outline a rational protocol for crystallizing proteins by surface mutagenesis. The importance of these findings is discussed in relation to the crystallization of proteins in general.},
  author       = {Wingren, Christer and Edmundson, AB and Borrebaeck, Carl},
  issn         = {1460-213X},
  keyword      = {structural proteomics,protein crystallization,crystal engineering,directed crystallization,triad-hypothesis},
  language     = {eng},
  number       = {4},
  pages        = {255--264},
  publisher    = {Oxford University Press},
  series       = {Protein Engineering},
  title        = {Designing proteins to crystallize through beta-strand pairing},
  url          = {http://dx.doi.org/10.1093/proeng/gzg038},
  volume       = {16},
  year         = {2003},
}