Rat Cell Biology ELISA Kits 3
Rat Beta-arrestin-1 (Arrb1) ELISA Kit
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- SKU:
- RTEB1311
- Product Type:
- ELISA Kit
- Size:
- 96 Assays
- Uniprot:
- P29066
- ELISA Type:
- Sandwich
- Synonyms:
- Beta-arrestin-1, beta Arrestin-1, Arrestin beta-1, Arrb1
- Reactivity:
- Rat
Description
| Product Name: | Rat Beta-arrestin-1 (Arrb1) ELISA Kit |
| Product Code: | RTEB1311 |
| Alias: | Beta-arrestin-1, Arrestin beta-1, Arrb1 |
| Uniprot: | P29066 |
| Reactivity: | Rat |
| Range: | Please contact us for more information |
| Detection Method: | Sandwich |
| Size: | 96 Assay |
| Storage: | Please see kit components below for exact storage details |
| Note: | For research use only |
| UniProt Protein Function: | ARRB1: regulates G-protein coupled receptors (GPCR) signaling by mediating both receptor desensitization and resensitization processes. Binds to GRK-phosphorylated receptor and sterically preclude its coupling to the cognate G- protein; the binding appears to require receptor determinants exposed only in the active receptor conformation. Targets many receptors for internalization by acting as endocytic adapters (CLASPs, clathrin-associated sorting proteins). Internalized arrestin-receptor complexes traffic to intracellular endosomes, where they remain uncoupled from G-proteins. Two different modes of arrestin-mediated internalization occur. Beta-arrestins function as multivalent adapter proteins that can switch the GPCR from a G-protein signaling mode that transmits short-lived signals from the plasma membrane via small molecule second messengers and ion channels to a beta-arrestin signaling mode that transmits a distinct set of signals that are initiated as the receptor internalizes and transits the intracellular compartment. Also involved in regulation of receptors other than GPCRs. Involved in Toll-like receptor and IL-1 receptor signaling through the interaction with TRAF6 which prevents TRAF6 autoubiquitination and oligomerization required for activation of NF-kappa-B and JUN. Binds phosphoinositides. Binds inositolhexakisphosphate (InsP6). Involved in IL8-mediated granule release in neutrophils. Interacts with phosphorylated ADRB2 and CHRM2. Interacts with SRC (via the SH3 domain and the protein kinase domain); the interaction is independent of the phosphorylation state of SRC C-terminus. Interacts with RAF1, CHUK, IKBKB and Nik. Interacts with DVL1 and DVL2; the interaction is enhanced by DVL phosphorylation. Interacts with IGF1R. Belongs to the arrestin family. 2 isoforms of the human protein are produced by alternative splicing.Protein type: Adaptor/scaffoldCellular Component: basolateral plasma membrane; cytoplasmic membrane-bound vesicle; postsynaptic density; dendritic spine; coated pit; pseudopodium; cytosol; nucleoplasm; postsynaptic membrane; cytoplasm; plasma membrane; intracellular; cytoplasmic vesicle; chromatin; nucleusMolecular Function: angiotensin receptor binding; protein phosphorylated amino acid binding; clathrin binding; follicle stimulating hormone receptor binding; mitogen-activated protein kinase kinase binding; caspase inhibitor activity; phosphoprotein binding; alpha-1B adrenergic receptor binding; transcription factor binding; GTPase activator activity; alpha-1A adrenergic receptor binding; V2 vasopressin receptor binding; insulin-like growth factor receptor binding; protein binding; histone acetyltransferase activity; G-protein-coupled receptor binding; ubiquitin protein ligase binding; estrogen receptor bindingBiological Process: transcription from RNA polymerase II promoter; proteasomal ubiquitin-dependent protein catabolic process; follicle-stimulating hormone signaling pathway; positive regulation of protein binding; activation of MAPK activity; positive regulation of receptor internalization; positive regulation of caspase activity; protein ubiquitination; negative regulation of caspase activity; sensory perception of pain; protein transport; negative regulation of protein amino acid phosphorylation; sensory perception of touch; phototransduction; negative regulation of interleukin-8 production; negative regulation of interleukin-6 production; regulation of cAMP biosynthetic process; arrestin mediated desensitization of G-protein coupled receptor protein signaling pathway; receptor-mediated endocytosis; positive regulation of Rho protein signal transduction; regulation of cAMP catabolic process; endocytosis; positive regulation of peptidyl-serine phosphorylation; G-protein signaling, coupled to cAMP nucleotide second messenger; G-protein coupled receptor protein signaling pathway; G-protein coupled receptor internalization; positive regulation of protein ubiquitination; inhibition of NF-kappaB transcription factor; stress fiber formation; positive regulation of transcription from RNA polymerase II promoter; positive regulation of histone acetylation; negative regulation of protein ubiquitination; positive regulation of protein amino acid phosphorylation; regulation of G-protein coupled receptor protein signaling pathway; positive regulation of GTPase activity |
| UniProt Protein Details: | |
| NCBI Summary: | |
| UniProt Code: | P29066 |
| NCBI GenInfo Identifier: | 6978537 |
| NCBI Gene ID: | 25387 |
| NCBI Accession: | NP_037042.1 |
| UniProt Secondary Accession: | P29066 |
| UniProt Related Accession: | P29066 |
| Molecular Weight: | 47,020 Da |
| NCBI Full Name: | beta-arrestin-1 |
| NCBI Synonym Full Names: | arrestin, beta 1 |
| NCBI Official Symbol: | Arrb1 |
| NCBI Official Synonym Symbols: | BARRES |
| NCBI Protein Information: | beta-arrestin-1 |
| UniProt Protein Name: | Beta-arrestin-1 |
| UniProt Synonym Protein Names: | Arrestin beta-1 |
| Protein Family: | Beta-arrestin |
| UniProt Gene Name: | Arrb1 |
| UniProt Entry Name: | ARRB1_RAT |
| Component | Quantity (96 Assays) | Storage |
| ELISA Microplate (Dismountable) | 8×12 strips | -20°C |
| Lyophilized Standard | 2 | -20°C |
| Sample Diluent | 20ml | -20°C |
| Assay Diluent A | 10mL | -20°C |
| Assay Diluent B | 10mL | -20°C |
| Detection Reagent A | 120µL | -20°C |
| Detection Reagent B | 120µL | -20°C |
| Wash Buffer | 30mL | 4°C |
| Substrate | 10mL | 4°C |
| Stop Solution | 10mL | 4°C |
| Plate Sealer | 5 | - |
Other materials and equipment required:
- Microplate reader with 450 nm wavelength filter
- Multichannel Pipette, Pipette, microcentrifuge tubes and disposable pipette tips
- Incubator
- Deionized or distilled water
- Absorbent paper
- Buffer resevoir
*Note: The below protocol is a sample protocol. Protocols are specific to each batch/lot. For the correct instructions please follow the protocol included in your kit.
Allow all reagents to reach room temperature (Please do not dissolve the reagents at 37°C directly). All the reagents should be mixed thoroughly by gently swirling before pipetting. Avoid foaming. Keep appropriate numbers of strips for 1 experiment and remove extra strips from microtiter plate. Removed strips should be resealed and stored at -20°C until the kits expiry date. Prepare all reagents, working standards and samples as directed in the previous sections. Please predict the concentration before assaying. If values for these are not within the range of the standard curve, users must determine the optimal sample dilutions for their experiments. We recommend running all samples in duplicate.
| Step | |
| 1. | Add Sample: Add 100µL of Standard, Blank, or Sample per well. The blank well is added with Sample diluent. Solutions are added to the bottom of micro ELISA plate well, avoid inside wall touching and foaming as possible. Mix it gently. Cover the plate with sealer we provided. Incubate for 120 minutes at 37°C. |
| 2. | Remove the liquid from each well, don't wash. Add 100µL of Detection Reagent A working solution to each well. Cover with the Plate sealer. Gently tap the plate to ensure thorough mixing. Incubate for 1 hour at 37°C. Note: if Detection Reagent A appears cloudy warm to room temperature until solution is uniform. |
| 3. | Aspirate each well and wash, repeating the process three times. Wash by filling each well with Wash Buffer (approximately 400µL) (a squirt bottle, multi-channel pipette,manifold dispenser or automated washer are needed). Complete removal of liquid at each step is essential. After the last wash, completely remove remaining Wash Buffer by aspirating or decanting. Invert the plate and pat it against thick clean absorbent paper. |
| 4. | Add 100µL of Detection Reagent B working solution to each well. Cover with the Plate sealer. Incubate for 60 minutes at 37°C. |
| 5. | Repeat the wash process for five times as conducted in step 3. |
| 6. | Add 90µL of Substrate Solution to each well. Cover with a new Plate sealer and incubate for 10-20 minutes at 37°C. Protect the plate from light. The reaction time can be shortened or extended according to the actual color change, but this should not exceed more than 30 minutes. When apparent gradient appears in standard wells, user should terminatethe reaction. |
| 7. | Add 50µL of Stop Solution to each well. If color change does not appear uniform, gently tap the plate to ensure thorough mixing. |
| 8. | Determine the optical density (OD value) of each well at once, using a micro-plate reader set to 450 nm. User should open the micro-plate reader in advance, preheat the instrument, and set the testing parameters. |
| 9. | After experiment, store all reagents according to the specified storage temperature respectively until their expiry. |
When carrying out an ELISA assay it is important to prepare your samples in order to achieve the best possible results. Below we have a list of procedures for the preparation of samples for different sample types.
| Sample Type | Protocol |
| Serum | If using serum separator tubes, allow samples to clot for 30 minutes at room temperature. Centrifuge for 10 minutes at 1,000x g. Collect the serum fraction and assay promptly or aliquot and store the samples at -80°C. Avoid multiple freeze-thaw cycles. If serum separator tubes are not being used, allow samples to clot overnight at 2-8°C. Centrifuge for 10 minutes at 1,000x g. Remove serum and assay promptly or aliquot and store the samples at -80°C. Avoid multiple freeze-thaw cycles. |
| Plasma | Collect plasma using EDTA or heparin as an anticoagulant. Centrifuge samples at 4°C for 15 mins at 1000 × g within 30 mins of collection. Collect the plasma fraction and assay promptly or aliquot and store the samples at -80°C. Avoid multiple freeze-thaw cycles. Note: Over haemolysed samples are not suitable for use with this kit. |
| Urine & Cerebrospinal Fluid | Collect the urine (mid-stream) in a sterile container, centrifuge for 20 mins at 2000-3000 rpm. Remove supernatant and assay immediately. If any precipitation is detected, repeat the centrifugation step. A similar protocol can be used for cerebrospinal fluid. |
| Cell culture supernatant | Collect the cell culture media by pipette, followed by centrifugation at 4°C for 20 mins at 1500 rpm. Collect the clear supernatant and assay immediately. |
| Cell lysates | Solubilize cells in lysis buffer and allow to sit on ice for 30 minutes. Centrifuge tubes at 14,000 x g for 5 minutes to remove insoluble material. Aliquot the supernatant into a new tube and discard the remaining whole cell extract. Quantify total protein concentration using a total protein assay. Assay immediately or aliquot and store at ≤ -20 °C. |
| Tissue homogenates | The preparation of tissue homogenates will vary depending upon tissue type. Rinse tissue with 1X PBS to remove excess blood & homogenize in 20ml of 1X PBS (including protease inhibitors) and store overnight at ≤ -20°C. Two freeze-thaw cycles are required to break the cell membranes. To further disrupt the cell membranes you can sonicate the samples. Centrifuge homogenates for 5 mins at 5000xg. Remove the supernatant and assay immediately or aliquot and store at -20°C or -80°C. |
| Tissue lysates | Rinse tissue with PBS, cut into 1-2 mm pieces, and homogenize with a tissue homogenizer in PBS. Add an equal volume of RIPA buffer containing protease inhibitors and lyse tissues at room temperature for 30 minutes with gentle agitation. Centrifuge to remove debris. Quantify total protein concentration using a total protein assay. Assay immediately or aliquot and store at ≤ -20 °C. |
| Breast Milk | Collect milk samples and centrifuge at 10,000 x g for 60 min at 4°C. Aliquot the supernatant and assay. For long term use, store samples at -80°C. Minimize freeze/thaw cycles. |
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