A synthetic peptide for use as a blocking control in assays to test for specificity of KDELR3 antibody, Alternative Names: KDELR3 control peptide, KDELR3 antibody Blocking Peptide, Anti-KDELR3 Blocking Peptide, Kdel Blocking Peptide, Lys-Asp-Glu-Leu Endoplasmic Reticulum Protein Retention Receptor 3 Blocking Peptide, ERD2L3 Blocking Peptide, KDELR3, KDELR-3, KDELR 3, KDELR-3 Blocking Peptide, KDELR 3 Blocking Peptide
Retention of resident soluble proteins in the lumen of the endoplasmic reticulum (ER) is achieved in both yeast and animal cells by their continual retrieval from the cis-Golgi, or a pre-Golgi compartment. Sorting of these proteins is dependent on a C-terminal tetrapeptide signal, usually lys-asp-glu-leu (kDaEL) in animal cells, and his-asp-glu-leu (HDEL) in S. cerevisiae. This process is mediated by a receptor that recognises, and binds the tetrapeptide-containing protein, and returns it to the ER. In yeast, the sorting receptor encoded by a single gene, ERD2, is a seven-transmembrane protein. Unlike yeast, several human homologs of the ERD2 gene, constituting the kDaEL receptor gene family, have been described. kDaELR3 was the third member of the family to be identified, and it encodes a protein highly homologous to kDaELR1 and kDaELR2 proteins.