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RPE65 Antibody

Novus Biologicals, part of Bio-Techne | Catalog # NBP3-10292

Novus Biologicals, part of Bio-Techne
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NBP3-10292-100ul

Key Product Details

Species Reactivity

Validated:

Human

Applications

Western Blot

Label

Unconjugated

Antibody Source

Polyclonal Rabbit

Concentration

0.5 mg/ml

Product Summary for RPE65 Antibody

Immunogen

The immunogen is a synthetic peptide directed towards the middle region of Human RPE65. Peptide sequence LFKFLSSWSLWGANYMDCFESNETMGVWLHIADKKRKKYLNNKYRTSPFN

Clonality

Polyclonal

Host

Rabbit

Theoretical MW

58 kDa.
Disclaimer note: The observed molecular weight of the protein may vary from the listed predicted molecular weight due to post translational modifications, post translation cleavages, relative charges, and other experimental factors.

Scientific Data Images for RPE65 Antibody

Western Blot: RPE65 Antibody [NBP3-10292]

Western Blot: RPE65 Antibody [NBP3-10292]

Western Blot: RPE65 Antibody [NBP3-10292] - Western blot analysis of RPE65 in 293T Whole Cell lysates. Antibody dilution at 1.0ug/ml

Applications for RPE65 Antibody

Application
Recommended Usage

Western Blot

1.0 ug/ml
Please Note: Optimal dilutions of this antibody should be experimentally determined.

Formulation, Preparation, and Storage

Purification

Affinity purified

Formulation

PBS, 2% Sucrose

Preservative

0.09% Sodium Azide

Concentration

0.5 mg/ml

Shipping

The product is shipped with polar packs. Upon receipt, store it immediately at the temperature recommended below.

Stability & Storage

Store at 4C short term. Aliquot and store at -20C long term. Avoid freeze-thaw cycles.

Background: RPE65

RPE65 (retinal pigment epithelium-specific 65 kDa protein) was first described in 1991 and is a key isomerase in RPE that is largely localized to the smooth endoplasmic reticulum (1,2). The RPE65 gene is located on chromosome 1p31 and the protein is synthesized as 533 amino acids in length with a theoretical molecular weight of 61 kDa, although appearing near 65 kDa in SDS-PAGE (1,3). RPE65 serves an important enzymatic function in the visual cycle in converting all-trans-retinyl esters into 11-cis-retinal (1-6). In the visual cycle, light activates rhodopsin and other visual pigments in the photoreceptor cells (rods and cones), eventually generating all-trans-retinol which is transported to the RPE and converted to the vitamin A-derived chromophore 11-cis-rentinal via RPE65 and is then diffused back to the photoreceptor to continue the cycle (1-6). Although it is still unclear, some studies have suggested that S-palmitoylation post-translational modification of RPE65 is responsible for the stability and anchoring to the RPE membrane and therefore functioning enzymatic activity (1,2).

Given its essential role in the vision cycle, it is understandable that mutations in RPE65 are associated with a variety of inherited retinal dystrophies (1, 3-6). Leber Congenital Amaurosis (LCA) and retinitis pigmentosa (RP) are two of the most common retinal dystrophies associated with bi-allelic RPE65 gene mutations (5,6). In 2017 the FDA approved an in vivo gene therapy for treatment of RPE65-associated diseases (5,6). The drug Voretigene Neparvovec, also called Luxturna, is delivered sub-retinally and transduces RPE cells with cDNA encoding for normal RPE65 to help restore vision (5,6). There are several promising completed and ongoing clinical trials for treating RPE65-associated diseases using gene replacement therapy (5).

References

1. Kiser, P. D., & Palczewski, K. (2010). Membrane-binding and enzymatic properties of RPE65. Progress in retinal and eye research. https://doi.org/10.1016/j.preteyeres.2010.03.002

2. Uppal, S., Poliakov, E., Gentleman, S., & Redmond, T. M. (2019). RPE65 Palmitoylation: A Tale of Lipid Posttranslational Modification. Advances in experimental medicine and biology. https://doi.org/10.1007/978-3-030-27378-1_88

3. Redmond T. M. (2009). Focus on Molecules: RPE65, the visual cycle retinol isomerase. Experimental eye research. https://doi.org/10.1016/j.exer.2008.07.015

4. Saari J. C. (2016). Vitamin A and Vision. Sub-cellular biochemistry. https://doi.org/10.1007/978-94-024-0945-1_9

5. Miraldi Utz, V., Coussa, R. G., Antaki, F., & Traboulsi, E. I. (2018). Gene therapy for RPE65-related retinal disease. Ophthalmic genetics. https://doi.org/10.1080/13816810.2018.1533027

6. Apte R. S. (2018). Gene Therapy for Retinal Degeneration. Cell. https://doi.org/10.1016/j.cell.2018.03.021

Alternate Names

All-trans-retinyl-palmitate hydrolase, BCO family, member 3, BCO3, EC 3.1.1.64, EC:3.1.1.64, EC:5.3.3.22, LCA2, lutein isomerase, meso-zeaxanthin isomerase, mRPE65, p63, RBP-binding membrane protein, rd12, retinal pigment epithelium specific protein 65, Retinal pigment epithelium-specific 65 kDa protein, retinal pigment epithelium-specific protein 65kDa, retinitis pigmentosa 20 (autosomal recessive), retinoid isomerohydrolase, Retinol isomerase, RP20, RPE65, RPE65, retinoid isomerohydrolase, sRPE65

Gene Symbol

RPE65

Additional RPE65 Products

Product Documents for RPE65 Antibody

Certificate of Analysis

To download a Certificate of Analysis, please enter a lot number in the search box below.

Product Specific Notices for RPE65 Antibody

This product is for research use only and is not approved for use in humans or in clinical diagnosis. Primary Antibodies are guaranteed for 1 year from date of receipt.

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