Crystal structure of seleno-l-cystine dihydrochloride

Acta Crystallographica Section E: Crystallographic Communications. 2015;71(6):726-729 DOI 10.1107/S205698901501021X

 

Journal Homepage

Journal Title: Acta Crystallographica Section E: Crystallographic Communications

ISSN: 2056-9890 (Online)

Publisher: International Union of Crystallography

LCC Subject Category: Science: Chemistry

Country of publisher: United Kingdom

Language of fulltext: English

Full-text formats available: PDF, HTML

 

AUTHORS

Carl Henrik Görbitz (Department of Chemistry, University of Oslo, PO Box 1033 Blindern, N-0315 Oslo, Norway)
Vladimir Levchenko (Department of Chemistry, University of Oslo, PO Box 1033 Blindern, N-0315 Oslo, Norway)
Jevgenijs Semjonovs (Department of Chemistry, University of Oslo, PO Box 1033 Blindern, N-0315 Oslo, Norway)
Mohamed Yusuf Sharif (Department of Chemistry, University of Oslo, PO Box 1033 Blindern, N-0315 Oslo, Norway)

EDITORIAL INFORMATION

Blind peer review

Editorial Board

Instructions for authors

Time From Submission to Publication: 3 weeks

 

Abstract | Full Text

Numerous crystal structures are available for the dimeric amino acid cystine. In proteins it is formed by oxidation of the –SH thiol groups of two closely spaced cysteine residues, resulting in the formation of a familiar disulfide bridge. The title compound [systematic name: (R,R)-1,1′-dicarboxy-2,2′-(diselanediyl)diethanaminium dichloride], C6H14N2O4Se22+·2Cl−, is the first example of a small molecule structure of the biologically important analogue with a —CH2—Se—Se—CH2— bridging unit. Bond lengths and angles of seleno-l-cystine dihydrochloride and its isotypic sulfur analogue l-cystine dihydrochloride are compared.