Calr - calreticulin

Enables calcium ion binding activity; carbohydrate binding activity; and mRNA binding activity. Involved in several processes, including cellular senescence; peptide antigen assembly with MHC class I protein complex; and protein stabilization. Acts upstream of or within cortical actin cytoskeleton organization; positive regulation of NIK/NF-kappaB signaling; and regulation of meiotic nuclear division. Located in endoplasmic reticulum; external side of plasma membrane; and extracellular space. Part of MHC class I peptide loading complex. Is expressed in several structures, including central nervous system; extraembryonic component; gut; placenta; and spleen. Used to study congestive heart failure. Human ortholog(s) of this gene implicated in essential thrombocythemia; myelofibrosis; pancreatic ductal adenocarcinoma; sideroblastic anemia; and thrombocytosis. Orthologous to human CALR (calreticulin). [provided by Alliance of Genome Resources, Apr 2022]