N-terminal Sel1-like repeats found in the wolframin protein. This region has been linked to calmodulin-binding, suggesting these repeats may mediate a protein interaction.

1: Functional Innovation in the Evolution of the Calcium-Dependent System of the Eukaryotic Endoplasmic Reticulum. Schaffer DE, Iyer LM, Burroughs AM, Aravind L; Front Genet. 2020;11:34. PMID:32117448

2: Identification and characterization of wolframin, the product of the wolfram syndrome gene (WFS1), as a novel calmodulin-binding protein. Yurimoto S, Hatano N, Tsuchiya M, Kato K, Fujimoto T, Masaki T, Kobayashi R, Tokumitsu H; Biochemistry. 2009;48:3946-3955. PMID:19292454