Product Pathways - Ca / cAMP / Lipid Signaling
Calreticulin Antibody #2891
|W||H M R Mk||Endogenous||55||Rabbit|
Reactivity Key: H=Human M=Mouse R=Rat Mk=Monkey
Species cross-reactivity is determined by western blot. Species enclosed in parentheses are predicted to react based on 100% sequence homology.
Specificity / Sensitivity
Calreticulin Antibody detects endogenous levels of total calreticulin protein.
Source / Purification
Polyclonal antibodies are produced by immunizing animals with a synthetic peptide surrounding Gln65 of human calreticulin. Antibodies are purified by peptide affinity chromatography.
Calcium is a universal signaling molecule involved in many cellular functions such as cell motility, metabolism, protein modification, protein folding, and apoptosis. Calcium is stored in the endoplasmic reticulum (ER), where it is buffered by calcium binding chaperones such as calnexin and calreticulin, and is released via the IP3 Receptor channel (1). Calreticulin also functions as an ER chaperone that ensures proper folding and quality control of newly synthesized glycoproteins. As such, calreticulin presumably does not alter protein folding but regulates proper timing for efficient folding and subunit assembly. Furthermore, calreticulin retains proteins in non-native conformation within the ER and targets them for degradation (2,3).
- Groenendyk, J. et al. (2004) Mol Cells 17, 383-9.
- Nauseef, W.M. et al. (1995) J Biol Chem 270, 4741-7.
- Williams, D.B. (2006) J Cell Sci 119, 615-23.
- Ma, L. et al. (2012) J Biol Chem 287, 1290-305. Applications: Western Blotting
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