Description
Human Glia-activating factor (FGF9) ELISA Kit
The Human Glia Activating Factor FGF9 ELISA Kit is specifically designed for the precise measurement of FGF9 levels in human samples such as serum, plasma, and cell culture supernatants. With its high sensitivity and specificity, this kit ensures accurate and reproducible results, making it suitable for various research applications.FGF9, also known as fibroblast growth factor 9, is a key factor in the activation of glial cells in the central nervous system.
It plays a crucial role in neuronal development, communication, and regeneration, making it a valuable biomarker for studying neurological diseases and potential therapeutic interventions.Overall, the Human Glia Activating Factor FGF9 ELISA Kit provides researchers with a reliable tool to explore the role of FGF9 in glial cell function and neurodegenerative disorders, offering insights for future research and treatment strategies.
| Product Name: | Human Glia-activating factor (FGF9) ELISA Kit |
| SKU: | HUEB0414 |
| Size: | 96T |
| Target: | Human Glia-activating factor (FGF9) |
| Synonyms: | Glia-activating factor, Heparin-binding growth factor 9, GAF, HBGF-9, FGF-9 |
| Assay Type: | Sandwich |
| Detection Method: | ELISA |
| Reactivity: | Human |
| Detection Range: | 78-5000pg/mL |
| Sensitivity: | 32pg/mL |
| Intra CV: | 6.5% | ||||||||||||||||||||
| Inter CV: | 8.0% | ||||||||||||||||||||
| Linearity: |
| ||||||||||||||||||||
| Recovery: |
| ||||||||||||||||||||
| Function: | Plays an important role in the regulation of embryonic development, cell proliferation, cell differentiation and cell migration. May have a role in glial cell growth and differentiation during development, gliosis during repair and regeneration of brain tissue after damage, differentiation and survival of neuronal cells, and growth stimulation of glial tumors. |
| Uniprot: | P31371 |
| Sample Type: | Serum, plasma, tissue homogenates, cell culture supernates and other biological fluids |
| Specificity: | Natural and recombinant human Fibroblast growth factor 9 |
| Sub Unit: | Monomer. Homodimer. Interacts with FGFR1, FGFR2, FGFR3 and FGFR4. Affinity between fibroblast growth factors (FGFs) and their receptors is increased by heparan sulfate glycosaminoglycans that function as coreceptors. |
| Research Area: | Cancer |
| Subcellular Location: | Secreted |
| Storage: | Please see kit components below for exact storage details |
| Note: | For research use only |
| UniProt Protein Function: | FGF9: Plays an important role in the regulation of embryonic development, cell proliferation, cell differentiation and cell migration. May have a role in glial cell growth and differentiation during development, gliosis during repair and regeneration of brain tissue after damage, differentiation and survival of neuronal cells, and growth stimulation of glial tumors. Defects in FGF9 are the cause of multiple synostoses syndrome type 3 (SYNS3). Multiple synostoses syndrome is an autosomal dominant condition characterized by progressive joint fusions of the fingers, wrists, ankles and cervical spine, characteristic facies and progressive conductive deafness. Belongs to the heparin-binding growth factors family. |
| UniProt Protein Details: | Protein type:Cytokine Chromosomal Location of Human Ortholog: 13q11-q12 Cellular Component: extracellular space; cytoplasm; extracellular region; basement membrane Molecular Function:heparin binding; growth factor activity; fibroblast growth factor receptor binding Biological Process: negative regulation of Wnt receptor signaling pathway; nerve growth factor receptor signaling pathway; embryonic skeletal development; negative regulation of transcription from RNA polymerase II promoter; signal transduction; positive regulation of vascular endothelial growth factor receptor signaling pathway; positive regulation of activin receptor signaling pathway; substantia nigra development; cell-cell signaling; positive regulation of MAPKKK cascade; protein import into nucleus; male sex determination; positive regulation of mesenchymal cell proliferation; positive regulation of cell proliferation; positive regulation of smoothened signaling pathway; chondrocyte differentiation; angiogenesis; regulation of timing of cell differentiation; embryonic gut development; positive regulation of cardiac muscle cell proliferation; embryonic limb morphogenesis; epidermal growth factor receptor signaling pathway; inner ear morphogenesis; fibroblast growth factor receptor signaling pathway; phosphoinositide-mediated signaling; male gonad development; osteoblast differentiation; positive regulation of cell division; insulin receptor signaling pathway; innate immune response; positive regulation of epithelial cell proliferation Disease: Multiple Synostoses Syndrome 3 |
| NCBI Summary: | The protein encoded by this gene is a member of the fibroblast growth factor (FGF) family. FGF family members possess broad mitogenic and cell survival activities, and are involved in a variety of biological processes, including embryonic development, cell growth, morphogenesis, tissue repair, tumor growth and invasion. This protein was isolated as a secreted factor that exhibits a growth-stimulating effect on cultured glial cells. In nervous system, this protein is produced mainly by neurons and may be important for glial cell development. Expression of the mouse homolog of this gene was found to be dependent on Sonic hedgehog (Shh) signaling. Mice lacking the homolog gene displayed a male-to-female sex reversal phenotype, which suggested a role in testicular embryogenesis. [provided by RefSeq, Jul 2008] |
| UniProt Code: | P31371 |
| NCBI GenInfo Identifier: | 544290 |
| NCBI Gene ID: | 2254 |
| NCBI Accession: | P31371.3 |
| UniProt Secondary Accession: | P31371,Q3SY32, A8K427, |
| UniProt Related Accession: | P31371 |
| Molecular Weight: | 23,441 Da |
| NCBI Full Name: | Fibroblast growth factor 9 |
| NCBI Synonym Full Names: | fibroblast growth factor 9 |
| NCBI Official Symbol: | FGF9 |
| NCBI Official Synonym Symbols: | GAF; FGF-9; SYNS3; HBFG-9; HBGF-9 |
| NCBI Protein Information: | fibroblast growth factor 9; heparin-binding growth factor 9; fibroblast growth factor 9 (glia-activating factor) |
| UniProt Protein Name: | Fibroblast growth factor 9 |
| UniProt Synonym Protein Names: | Glia-activating factor; GAF; Heparin-binding growth factor 9; HBGF-9 |
| Protein Family: | Fibroblast growth factor |
| UniProt Gene Name: | FGF9 |
| UniProt Entry Name: | FGF9_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. |
