The polymeric immunoglobulin receptor is the major calmodulin‐binding protein in an endosome fraction from rat liver enriched in recycling receptors
C Enrich, S Jäckle, R J Havel – 1 July 1996 – Rat liver endosomes contain one major high‐affinity calmodulin‐binding protein (CaMBP) that now has been identified as the polymeric immunoglobulin receptor (pIgR). In isolated endosomes pIgR was enriched in the receptor‐recycling compartment (RRC); lesser enrichment was found in ‘early’ endosome (CURL) and much less in ‘late’ endosome fractions (multivesicular bodies, MVB).