MeSH definition : A multifunctional protein that is found primarily within membrane-bound organelles.
In the ENDOPLASMIC RETICULUM it binds to specific N-linked oligosaccharides found
on newly-synthesized proteins and functions as a MOLECULAR CHAPERONE that may play
a role in PROTEIN FOLDING or retention and degradation of misfolded proteins. In addition
calreticulin is a major storage form for CALCIUM and functions as a calcium-signaling
molecule that can regulate intracellular calcium HOMEOSTASIS.;
A multifunctional protein that is found primarily within membrane-bound organelles.
In the ENDOPLASMIC RETICULUM it binds to specific N-linked oligosaccharides found
on newly-synthesized proteins and functions as a MOLECULAR CHAPERONE that may play
a role in PROTEIN FOLDING or retention and degradation of misfolded proteins. In addition
calreticulin is a major storage form for CALCIUM and functions as a calcium-signaling
molecule that can regulate intracellular calcium HOMEOSTASIS.