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Rat Leucine-rich repeat-containing G-protein coupled receptor 4 (Lgr4) ELISA Kit (RTEB0707)

SKU:
RTEB0707
Product Type:
ELISA Kit
Size:
96 Assays
Uniprot:
Q9Z2H4
ELISA Type:
Sandwich
Reactivity:
Rat
€649
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Description

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Rat Leucine-rich repeat-containing G-protein coupled receptor 4 (Lgr4) ELISA Kit

The Rat Leucine Rich Repeat Containing G Protein-Coupled Receptor 4 (LGR4) ELISA Kit is a reliable tool for detecting and quantifying the levels of LGR4 in rat samples, including serum, plasma, and cell culture supernatants. This kit offers high sensitivity and specificity, ensuring accurate and reproducible results for a variety of research applications.LGR4 is a member of the G protein-coupled receptor family and plays a crucial role in various cellular processes, including embryonic development, stem cell regulation, and tissue regeneration.

Its dysregulation has been linked to several diseases, making it a valuable biomarker for studying these conditions and identifying potential therapeutic targets.Overall, the Rat LGR4 ELISA Kit provides researchers with a powerful tool for investigating the role of LGR4 in health and disease, furthering our understanding of its biological functions and potential clinical implications.

Product Name:Rat Leucine-rich repeat-containing G-protein coupled receptor 4 (Lgr4) ELISA Kit
SKU:RTEB0707
Size:96T
Target:Rat Leucine-rich repeat-containing G-protein coupled receptor 4 (Lgr4)
Synonyms:G-protein coupled receptor 48, Gpr48
Assay Type:Sandwich
Detection Method:ELISA
Reactivity:Rat
Detection Range:0.78-50ng/mL
Sensitivity:0.396ng/mL
Intra CV:Provided with the Kit
Inter CV:Provided with the Kit
Linearity:Provided with the Kit
Recovery:Provided with the Kit
Function:Receptor for R-spondins that potentiates the canonical Wnt signaling pathway and is involved in the formation of various organs. Upon binding to R-spondins (RSPO1, RSPO2, RSPO3 or RSPO4), associates with phosphorylated LRP6 and frizzled receptors that are activated by extracellular Wnt receptors, triggering the canonical Wnt signaling pathway to increase expression of target genes. In contrast to classical G-protein coupled receptors, does not activate heterotrimeric G-proteins to transduce the signal. Its function as activator of the Wnt signaling pathway is required for the development of various organs, including liver, kidney, intestine, bone, reproductive tract and eye. May also act as a receptor for norrin (NDP), such results however require additional confirmation in vivo. Required during spermatogenesis to activate the Wnt signaling pathway in peritubular myoid cells. Required for the maintenance of intestinal stem cells and Paneth cell differentiation in postnatal intestinal crypts. Acts as a regulator of bone formation and remodeling. Involved in kidney development; required for maintaining the ureteric bud in an undifferentiated state. Involved in the development of the anterior segment of the eye. Required during erythropoiesis. Also acts as a negative regulator of innate immunity by inhibiting TLR2/TLR4 associated pattern-recognition and proinflammatory cytokine production. Plays an important role in regulating the circadian rhythms of plasma lipids, partially through regulating the rhythmic expression of MTTP.
Uniprot:Q9Z2H4
Sample Type:Serum, plasma, tissue homogenates, cell culture supernates and other biological fluids
Specificity:Natural and recombinant rat Leucine-rich repeat-containing G-protein coupled receptor 4
Subcellular Location:Cell membrane Multi-pass membrane protein
Storage:Please see kit components below for exact storage details
Note:For research use only
UniProt Protein Function:LGR4: a leucine-rich repeat-containing G-protein-coupled receptor. Receptor for R-spondins, potent stimulators of adult stem cell proliferation. A Wnt receptor component that enhances Wnt signaling by soluble R-spondin proteins. Plays an essential role during homeostasis of the adult mouse intestine.Protein type: GPCR, family 1; Receptor, GPCR; Membrane protein, integral; Membrane protein, multi-passChromosomal Location of Human Ortholog: 11p14-p13Cellular Component: integral to plasma membrane; plasma membraneMolecular Function: G-protein coupled receptor activity; protein binding; transmembrane receptor activityBiological Process: osteoblast differentiation; G-protein coupled receptor protein signaling pathway; epithelial cell proliferation; positive regulation of transcription, DNA-dependent; negative regulation of cytokine secretion; male genitalia development; negative regulation of toll-like receptor signaling pathway; innate immune response; spermatogenesis; circadian regulation of gene expression; bone remodeling; negative regulation of transcription, DNA-dependent; bone mineralizationDisease: Bone Mineral Density Quantitative Trait Locus 17
UniProt Protein Details:
NCBI Summary:G protein-coupled receptors (GPCRs) play key roles in a variety of physiologic functions. Members of the leucine-rich GPCR (LGR) family, such as GPR48, have multiple N-terminal leucine-rich repeats (LRRs) and a 7-transmembrane domain (Weng et al., 2008 [PubMed 18424556]).[supplied by OMIM, Aug 2008]
UniProt Code:Q9Z2H4
NCBI GenInfo Identifier:157694513
NCBI Gene ID:55366
NCBI Accession:NP_060960.2
UniProt Secondary Accession:Q9Z2H4,A2ARI4, Q9Z2H4
UniProt Related Accession:Q9Z2H4,Q9BXB1
Molecular Weight:104,475 Da
NCBI Full Name:leucine-rich repeat-containing G-protein coupled receptor 4
NCBI Synonym Full Names:leucine-rich repeat containing G protein-coupled receptor 4
NCBI Official Symbol:LGR4
NCBI Official Synonym Symbols:GPR48
NCBI Protein Information:leucine-rich repeat-containing G-protein coupled receptor 4; G protein-coupled receptor 48
UniProt Protein Name:Leucine-rich repeat-containing G-protein coupled receptor 4
UniProt Synonym Protein Names:G-protein coupled receptor 48
Protein Family:Leucine-rich repeat-containing G-protein coupled receptor
UniProt Gene Name:LGR4
UniProt Entry Name:LGR4_HUMAN
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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