ERp29 is a ubiquitously expressed endoplasmic reticulum protein found in mammals. ERp29 is comprised of two domains. This domain, the C-terminal domain, has an all helical fold [1]. ERp29 is thought to form part of the thyroglobulin folding complex [2].

1: Thioredoxin fold as homodimerization module in the putative chaperone ERp29: NMR structures of the domains and experimental model of the 51 kDa dimer. Liepinsh E, Baryshev M, Sharipo A, Ingelman-Sundberg M, Otting G, Mkrtchian S; Structure (Camb) 2001;9:457-471. PMID:11435111

2: Identification of ERp29, an endoplasmic reticulum lumenal protein, as a new member of the thyroglobulin folding complex. Sargsyan E, Baryshev M, Szekely L, Sharipo A, Mkrtchian S; J Biol Chem 2002;277:17009-17015. PMID:11884402