Crystallization and preliminary crystallographic studies of a new L-asparaginase encoded by the Escherichia coli genome

D. Borek, M. Jaskolski

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

A new Escherichia coli L-asparaginase belonging to the class of Ntn amidohydrolases has been crystallized using the vapour-diffusion method and PEG 4000 as the precipitant. The crystals belong to the orthorhombic space group P212121 (unit-cell parameters a = 50.3, b = 77.6, c = 148.2 Å) and diffract to 1.65 Å resolution. The structure has been solved by molecular replacement using aspartylglucosaminidase from Flavobacterium meningosepticum as the search model. The asymmetric unit contains four protein chains composed into a dimer of αβ heterodimers, where the subunits α and β are the product of autoproteolytic cleavage of the immature protein.

Original languageEnglish (US)
Pages (from-to)1505-1507
Number of pages3
JournalActa Crystallographica Section D: Biological Crystallography
Volume56
Issue number11
DOIs
StatePublished - 2000

Fingerprint

Asparaginase
genome
Escherichia
Crystallization
Escherichia coli
Aspartylglucosylaminase
Genes
Chryseobacterium
Amidohydrolases
Genome
crystallization
proteins
Dimers
Polyethylene glycols
cleavage
Proteins
Vapors
dimers
vapors
Crystals

ASJC Scopus subject areas

  • Clinical Biochemistry
  • Biochemistry, Genetics and Molecular Biology(all)
  • Biochemistry
  • Biophysics
  • Condensed Matter Physics
  • Structural Biology

Cite this

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title = "Crystallization and preliminary crystallographic studies of a new L-asparaginase encoded by the Escherichia coli genome",
abstract = "A new Escherichia coli L-asparaginase belonging to the class of Ntn amidohydrolases has been crystallized using the vapour-diffusion method and PEG 4000 as the precipitant. The crystals belong to the orthorhombic space group P212121 (unit-cell parameters a = 50.3, b = 77.6, c = 148.2 {\AA}) and diffract to 1.65 {\AA} resolution. The structure has been solved by molecular replacement using aspartylglucosaminidase from Flavobacterium meningosepticum as the search model. The asymmetric unit contains four protein chains composed into a dimer of αβ heterodimers, where the subunits α and β are the product of autoproteolytic cleavage of the immature protein.",
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T1 - Crystallization and preliminary crystallographic studies of a new L-asparaginase encoded by the Escherichia coli genome

AU - Borek, D.

AU - Jaskolski, M.

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N2 - A new Escherichia coli L-asparaginase belonging to the class of Ntn amidohydrolases has been crystallized using the vapour-diffusion method and PEG 4000 as the precipitant. The crystals belong to the orthorhombic space group P212121 (unit-cell parameters a = 50.3, b = 77.6, c = 148.2 Å) and diffract to 1.65 Å resolution. The structure has been solved by molecular replacement using aspartylglucosaminidase from Flavobacterium meningosepticum as the search model. The asymmetric unit contains four protein chains composed into a dimer of αβ heterodimers, where the subunits α and β are the product of autoproteolytic cleavage of the immature protein.

AB - A new Escherichia coli L-asparaginase belonging to the class of Ntn amidohydrolases has been crystallized using the vapour-diffusion method and PEG 4000 as the precipitant. The crystals belong to the orthorhombic space group P212121 (unit-cell parameters a = 50.3, b = 77.6, c = 148.2 Å) and diffract to 1.65 Å resolution. The structure has been solved by molecular replacement using aspartylglucosaminidase from Flavobacterium meningosepticum as the search model. The asymmetric unit contains four protein chains composed into a dimer of αβ heterodimers, where the subunits α and β are the product of autoproteolytic cleavage of the immature protein.

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