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Mouse Signal transducer CD24 (Cd24) ELISA Kit

SKU:
MOEB1992
Product Type:
ELISA Kit
Size:
96 Assays
Uniprot:
P24807
ELISA Type:
Sandwich
Reactivity:
Mouse
€649
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Description

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Product Name:Mouse Signal transducer CD24 (Cd24) ELISA Kit
Product Code:MOEB1992
Alias:Signal transducer CD24, Lymphocyte antigen 52, Ly-52, M1/69-J11D heat stable antigen, HSA, Nectadrin, R13-Ag, X62 heat stable antigen, Cd24, Cd24a, Ly-52, CD24
Uniprot:P24807
Reactivity:Mouse
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:CD24: Modulates B-cell activation responses. Signaling could be triggered by the binding of a lectin-like ligand to the CD24 carbohydrates, and transduced by the release of second messengers derived from the GPI-anchor. Promotes AG-dependent proliferation of B-cells, and prevents their terminal differentiation into antibody-forming cells. Genetic variations in CD24 are associated with susceptibility to multiple sclerosis (MS). A multifactorial, inflammatory, demyelinating disease of the central nervous system. Sclerotic lesions are characterized by perivascular infiltration of monocytes and lymphocytes and appear as indurated areas in pathologic specimens (sclerosis in plaques). The pathological mechanism is regarded as an autoimmune attack of the myelin sheat, mediated by both cellular and humoral immunity. Clinical manifestations include visual loss, extra-ocular movement disorders, paresthesias, loss of sensation, weakness, dysarthria, spasticity, ataxia and bladder dysfunction. Genetic and environmental factors influence susceptibility to the disease. Polymorphisms in CD24 may act as a genetic modifier for susceptibility and progression of MS in some populations, perhaps by affecting the efficiency of CD24 expression on the cell surface. Belongs to the CD24 family.
UniProt Protein Details:

Protein type:Membrane protein, GPI anchor; Cell development/differentiation; Cell surface; Motility/polarity/chemotaxis

Cellular Component: anchored to external side of plasma membrane; cell surface; external side of plasma membrane; lipid raft; membrane; microvillus membrane; plasma membrane

Molecular Function:carbohydrate binding; protein binding; protein kinase binding; protein tyrosine kinase activator activity

Biological Process: apoptotic mitochondrial changes; apoptotic nuclear changes; cell activation; cell adhesion; cell migration; cell surface receptor linked signal transduction; chemokine receptor transport out of lipid raft; cholesterol homeostasis; elevation of cytosolic calcium ion concentration; heterophilic cell adhesion; homotypic cell-cell adhesion; leukocyte adhesion; leukocyte migration during inflammatory response; negative regulation of B cell proliferation; negative regulation of erythrocyte aggregation; negative regulation of erythrocyte clearance; negative regulation of neuroblast proliferation; negative regulation of neurogenesis; negative regulation of neuron differentiation; negative regulation of T cell homeostatic proliferation; negative regulation of transforming growth factor-beta3 production; neurite development; neuromuscular synaptic transmission; positive regulation of activated T cell proliferation; positive regulation of alpha-beta T cell proliferation; positive regulation of B cell apoptosis; positive regulation of calcium-mediated signaling; positive regulation of cell adhesion mediated by integrin; positive regulation of cell-cell adhesion; positive regulation of cell-cell adhesion mediated by integrin; positive regulation of inflammatory response to antigenic stimulus; positive regulation of integrin activation; positive regulation of MAP kinase activity; positive regulation of peptidyl-tyrosine phosphorylation; positive regulation of T cell homeostatic proliferation; positive regulation of T cell mediated immune response to tumor cell; pre-B cell differentiation; regulation of B cell differentiation; regulation of cell-cell adhesion; regulation of cell-cell adhesion mediated by integrin; regulation of cytokine and chemokine mediated signaling pathway; regulation of MAPKKK cascade; regulation of phosphorylation; respiratory burst; response to estrogen stimulus; response to hypoxia; response to molecule of bacterial origin; synaptic vesicle endocytosis; T cell costimulation

UniProt Code:P24807
NCBI GenInfo Identifier:6753342
NCBI Gene ID:12484
NCBI Accession:NP_033976.1
UniProt Secondary Accession:P24807,P26691,
UniProt Related Accession:P24807
Molecular Weight:7,797 Da
NCBI Full Name:signal transducer CD24
NCBI Synonym Full Names:CD24a antigen
NCBI Official Symbol:Cd24a  
NCBI Official Synonym Symbols:HSA; Cd24; Ly-52; nectadrin  
NCBI Protein Information:signal transducer CD24
UniProt Protein Name:Signal transducer CD24
UniProt Synonym Protein Names:Lymphocyte antigen 52; Ly-52; M1/69-J11D heat stable antigen; HSA; Nectadrin; R13-Ag; X62 heat stable antigen; CD_antigen: CD24
Protein Family:Signal transducer
UniProt Gene Name:Cd24  
UniProt Entry Name:CD24_MOUSE
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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