KDELR1

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 (KDEL) in animal cells, and his-asp-glu-leu (HDEL) in S. cerevisiae. This process is mediated by a receptor that recognizes, and binds the tetrapeptide-containing protein, and returns it to the ER. In yeast, the sorting receptor encoded by a single gene, ERD2, which is a seven-transmembrane protein. Unlike yeast, several human homologs of the ERD2 gene, constituting the KDEL receptor gene family, have been described. The protein encoded by this gene was the first member of the family to be identified, and it encodes a protein structurally and functionally similar to the yeast ERD2 gene product. [provided by RefSeq, Jul 2008]

Description

KDEL endoplasmic reticulum protein retention receptor 1

Tissue specificity

Low tissue specificity

Subcell location

Golgi apparatus, Vesicles, Cytosol

Predicted location

Membrane

Protein family

Mapped to neXtProt
Mapped to UniProt SWISS-PROT
Predicted membrane proteins
Protein evidence (Ezkurdia et al 2014)
Protein evidence (Kim et al 2014)
Transporters

Chromosome

19 (48382575 - 48391551)

Ensembl ID

ENSG00000105438  (ver. 103.38)

Orthologs

Mouse Kdelr1: ENSMUSG00000002778

UniProt

P24390

neXtProt

NX_P24390

Human splice variants
Mouse splice variants

Protein structure