| Field | Specification |
|---|---|
| Mfr No | |
| Alternative Names | KDEL, K-D-E-L, Lys-Asp-Glu-Leu, Lys-Asp-Glu-Leu (KDEL), Lysine-aspartic acid-glutamate-leucine |
| Clonality | |
| Concentration | |
| Host | |
| Immunogen | KDEL peptide (C-AVKDEL -COOH) conjugated at the N-terminal to Bovine Serum Albumin (BSA) |
| Isotype | |
| Product Type | |
| Reactivity | |
| Shipping | |
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| Target |
The endoplasmic reticulum (ER) plays a central role in protein folding, quality control, and trafficking within eukaryotic cells. A key mechanism for retaining essential chaperones and folding enzymes within the ER involves the C-terminal KDEL sequence (Lys-Asp-Glu-Leu), a highly conserved ER retention motif.
Proteins such as GRP78, GRP94, and protein disulfide isomerase (PDI)—critical for maintaining proteostasis—contain the KDEL motif, which ensures their retrieval from the Golgi apparatus back to the ER. This retention system is vital for sustaining ER function under both physiological and stress conditions.
In the context of neurodegenerative diseases, such as Alzheimer’s, Parkinson’s, and ALS, chronic ER stress and impaired protein homeostasis are hallmark features. The KDEL retrieval system is increasingly recognized as a key modulator of the unfolded protein response (UPR), a cellular defense mechanism activated by misfolded proteins. Dysregulation of KDEL-containing chaperones can exacerbate protein aggregation, neuronal dysfunction, and cell death.
Moreover, experimental evidence suggests that enhancing KDEL-mediated retention can reduce aberrant protein secretion and improve ER stress resilience, offering potential therapeutic avenues. As such, the KDEL motif and its associated retrieval machinery are emerging as critical components in the study of neurodegeneration and cellular stress adaptation.
A 1:1000 dilution of SMC-540 was sufficient for detection of KDEL in 10 µg of HeLa cell lysates by ECL immunoblot analysis using goat anti-mouse IgG:HRP as the secondary antibody.
Cite this product varies by variant:
- SMC-540D — Size: 100 ug: KDEL Antibody (StressMarq Biosciences | Victoria, BC CANADA, Catalog# SMC-540D, RRID: AB_2728849)
- SMC-540D-A390 — Size: 100 ug: KDEL Antibody: ATTO 390 (StressMarq Biosciences | Victoria, BC CANADA, Catalog# SMC-540D-A390, RRID: AB_2729120)
- SMC-540D-A488 — Size: 100 ug: KDEL Antibody: ATTO 488 (StressMarq Biosciences | Victoria, BC CANADA, Catalog# SMC-540D-A488, RRID: AB_2729121)
- SMC-540D-A594 — Size: 100 ug: KDEL Antibody: ATTO 594 (StressMarq Biosciences | Victoria, BC CANADA, Catalog# SMC-540D-A594, RRID: AB_2729123)
- SMC-540D-APC — Size: 100 ug: KDEL Antibody: APC (StressMarq Biosciences | Victoria, BC CANADA, Catalog# SMC-540D-APC, RRID: AB_2729129)
- SMC-540D-BI — Size: 100 ug: KDEL Antibody: Biotin (StressMarq Biosciences | Victoria, BC CANADA, Catalog# SMC-540D-BI, RRID: AB_2729130)
- SMC-540D-FITC — Size: 100 ug: KDEL Antibody: FITC (StressMarq Biosciences | Victoria, BC CANADA, Catalog# SMC-540D-FITC, RRID: AB_2729131)
- SMC-540D-HRP — Size: 100 ug: KDEL Antibody: HRP (StressMarq Biosciences | Victoria, BC CANADA, Catalog# SMC-540D-HRP, RRID: AB_2729132)
- SMC-540D-PCP — Size: 100 ug: KDEL Antibody: PerCP (StressMarq Biosciences | Victoria, BC CANADA, Catalog# SMC-540D-PCP, RRID: AB_2729134)
- SMC-540D-RPE — Size: 100 ug: KDEL Antibody: RPE (StressMarq Biosciences | Victoria, BC CANADA, Catalog# SMC-540D-RPE, RRID: AB_2729135)
- SMC-540S — Size: 12 ug: KDEL Antibody (StressMarq Biosciences | Victoria, BC CANADA, Catalog# SMC-540S, RRID: AB_2728849)
Customization & Add-ons: Can’t find the antibody you need—or require a custom format for your assay? We can help you source the best match or support custom antibody solutions for diverse research needs, including species and isotype selection, conjugations and labeling (e.g., HRP/AP, biotin, fluorophores), purification grade options (Protein A/G, affinity purified), formulation preferences (buffer selection, carrier-free, glycerol-free), custom concentrations and aliquoting, low-endotoxin options for cell-based work, and application-focused QC/validation support (project dependent). Click Talk to a Scientist to submit a request, email us at support@biohippo.com, or explore our Research Services for additional support—our team will follow up with feasibility details and next steps.
2. Austin R.C., et al. (2003) J Biol Chem. 278: 17438.