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Crystallization and preliminary crystallographic studies of human kallikrein 7, a serine protease of the multigene kallikrein family

Journal Article · · Acta Crystallographica. Section F
 [1];  [1];  [2]; ;  [1]
  1. Departamento de Ciencia de Proteínas, Centro de Investigaciones Biológicas-CSIC, Ramiro de Maeztu 9, 28040 Madrid (Spain)
  2. Hannover Medical School, Center of Pharmacology, 30625 Hannover (Germany)
The cloning, expression, purification and crystallization of recombinant human kallikrein 7, directly synthesized in the active form in E. coli, is described. Diffraction data were collected to 2.8 Å resolution from native crystals. Human kallikreins are a group of serine proteases of high sequence homology whose genes are grouped as a single cluster at chromosome 19. Although the physiological roles of kallikreins are generally still unknown, members of the kallikrein family have been clearly implicated in pathological situations such as cancer and psoriasis. Human kallikrein 7 (hK7) has been shown to be involved in pathological keratinization, psoriasis and ovarian cancer. In order to gain insight into the molecular structure of this protein, hK7 was crystallized after recombinant production in its folded and active form using a periplasmic secretion vector in Escherichia coli. The crystals belonged to the rhombohedral space group H32 and diffracted to 2.8 Å. The phase problem was solved by molecular replacement using the mouse kallikrein-related protein neuropsin. Completion of the model and structure refinement are under way.
OSTI ID:
22360380
Journal Information:
Acta Crystallographica. Section F, Journal Name: Acta Crystallographica. Section F Journal Issue: Pt 8 Vol. 63; ISSN ACSFCL; ISSN 1744-3091
Country of Publication:
United Kingdom
Language:
English

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