1n9j

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Template:STRUCTURE 1n9j

Contents

Solution Structure of the 3D domain swapped dimer of Stefin A

Template:ABSTRACT PUBMED 11532941

Disease

[CYTA_HUMAN] Defects in CSTA are the cause of ichthyosis exfoliative autosomal recessive ichthyosis bullosa of Siemens-like (AREI) [MIM:607936]. A form of congenital exfoliative ichthyosis, sharing some features with ichthyosis bullosa of Siemens and annular epidermolytic ichthyosis. AREI presents shortly after birth as dry, scaly skin over most of the body with coarse peeling of non-erythematous skin on the palms and soles, which is exacerbated by excessive moisture and minor trauma. Electron microscopy analysis of skin biopsies, reveals mostly normal-appearing upper layers of the epidermis, but prominent intercellular edema of the basal and suprabasal cell layers with aggregates of tonofilaments in the basal keratinocytes.[1]

Function

[CYTA_HUMAN] This is an intracellular thiol proteinase inhibitor. Has an important role in desmosome-mediated cell-cell adhesion in the lower levels of the epidermis.[2]

About this Structure

1n9j is a 2 chain structure with sequence from Homo sapiens. Full experimental information is available from OCA.

Reference

  • Staniforth RA, Giannini S, Higgins LD, Conroy MJ, Hounslow AM, Jerala R, Craven CJ, Waltho JP. Three-dimensional domain swapping in the folded and molten-globule states of cystatins, an amyloid-forming structural superfamily. EMBO J. 2001 Sep 3;20(17):4774-81. PMID:11532941 doi:http://dx.doi.org/10.1093/emboj/20.17.4774
  1. Blaydon DC, Nitoiu D, Eckl KM, Cabral RM, Bland P, Hausser I, van Heel DA, Rajpopat S, Fischer J, Oji V, Zvulunov A, Traupe H, Hennies HC, Kelsell DP. Mutations in CSTA, encoding Cystatin A, underlie exfoliative ichthyosis and reveal a role for this protease inhibitor in cell-cell adhesion. Am J Hum Genet. 2011 Oct 7;89(4):564-71. doi: 10.1016/j.ajhg.2011.09.001. Epub, 2011 Sep 22. PMID:21944047 doi:10.1016/j.ajhg.2011.09.001
  2. Blaydon DC, Nitoiu D, Eckl KM, Cabral RM, Bland P, Hausser I, van Heel DA, Rajpopat S, Fischer J, Oji V, Zvulunov A, Traupe H, Hennies HC, Kelsell DP. Mutations in CSTA, encoding Cystatin A, underlie exfoliative ichthyosis and reveal a role for this protease inhibitor in cell-cell adhesion. Am J Hum Genet. 2011 Oct 7;89(4):564-71. doi: 10.1016/j.ajhg.2011.09.001. Epub, 2011 Sep 22. PMID:21944047 doi:10.1016/j.ajhg.2011.09.001

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