Università della Svizzera italiana

Malectin participates in a backup glycoprotein quality control pathway in the mammalian ER

Galli, Carmela ; Bernasconi, Riccardo ; Soldà, Tatiana ; Calanca, Verena ; Molinari, Maurizio

In: Plos one, 2011, vol. 6, no. 1, p. e16304

Malectin is a conserved, endoplasmic reticulum (ER)-resident lectin that recognizes high mannose oligosaccharides displaying terminal glucose residues. Here we show that Malectin is an ER stress-induced protein that selectively associates with glycopolypeptides without affecting their entry and their retention in the Calnexin chaperone system. Analysis of the obligate Calnexin client...

Università della Svizzera italiana

Cyclosporine A-sensitive, cyclophilin B-dependent endoplasmic reticulum-associated degradation

Bernasconi, Riccardo ; Soldà, Tatiana ; Galli, Carmela ; Pertel, Thomas ; Luban, Jeremy ; Molinari, Maurizio

In: Plos one, 2010, vol. 5, no. 9, p. e13008

Peptidyl-prolyl cis/trans isomerases (PPIs) catalyze cis/trans isomerization of peptide bonds preceding proline residues. The involvement of PPI family members in protein refolding has been established in test tube experiments. Surprisingly, however, no data is available on the involvement of endoplasmic reticulum (ER)-resident members of the PPI family in protein folding, quality control or...