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A preliminary neutron crystallographic study of proteinase K at pD 6.5.

ABSTRACT: A preliminary neutron crystallographic study of the proteolytic enzyme proteinase K is presented. Large hydrogenated crystals were prepared in deuterated crystallization buffer using the vapor-diffusion method. Data were collected to a resolution of 2.3 A on the LADI-III diffractometer at the Institut Laue-Langevin (ILL) in 2.5 d. The results demonstrate the feasibility of a full neutron crystallographic analysis of this structure with the aim of providing relevant information on the location of H atoms, particularly at the active site. This information will contribute to further understanding of the molecular mechanisms underlying the catalytic activity of proteinase K and to an enriched understanding of the subtilisin clan of serine proteases.

SUBMITTER: Gardberg AS

PROVIDER: S-EPMC2635872 | biostudies-literature | 2009 Feb

REPOSITORIES: biostudies-literature

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A preliminary neutron crystallographic study of proteinase K at pD 6.5.

Gardberg Anna S AS Blakeley Matthew P MP Myles Dean A A DA

Acta crystallographica. Section F, Structural biology and crystallization communications 20090131 Pt 2

A preliminary neutron crystallographic study of the proteolytic enzyme proteinase K is presented. Large hydrogenated crystals were prepared in deuterated crystallization buffer using the vapor-diffusion method. Data were collected to a resolution of 2.3 A on the LADI-III diffractometer at the Institut Laue-Langevin (ILL) in 2.5 d. The results demonstrate the feasibility of a full neutron crystallographic analysis of this structure with the aim of providing relevant information on the location of ...[more]

PMID: 19194016

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