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Mouse Heat shock factor protein 4 (Hsf4) ELISA Kit (MOEB2343)

SKU:
MOEB2343
Product Type:
ELISA Kit
Size:
96 Assays
Uniprot:
Q9R0L1
ELISA Type:
Sandwich
Reactivity:
Mouse
€649
Frequently bought together:

Description

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Mouse Heat shock factor protein 4 (Hsf4) ELISA Kit

The Mouse Heat Shock Factor Protein 4 (HSF4) ELISA Kit is a reliable and accurate tool for the detection of HSF4 levels in mouse serum, plasma, and cell culture supernatants. This kit offers high sensitivity and specificity, ensuring precise and reproducible results for a variety of research applications.HSF4 is a key regulatory protein involved in the cellular response to heat shock and other forms of stress. It plays a critical role in maintaining cellular homeostasis and protecting cells from damage. Studies have shown that dysregulation of HSF4 activity is associated with various diseases, including neurodegenerative disorders and metabolic conditions.

By using the Mouse HSF4 ELISA Kit, researchers can gain valuable insights into the role of HSF4 in disease pathogenesis and potential therapeutic interventions. The kit provides a convenient and efficient means of studying HSF4 levels in biological samples, facilitating advancements in the understanding of stress response mechanisms and cellular signaling pathways.

Product Name:Mouse Heat shock factor protein 4 (Hsf4) ELISA Kit
SKU:MOEB2343
Size:96T
Target:Mouse Heat shock factor protein 4 (Hsf4)
Synonyms:Heat shock transcription factor 4, HSTF 4, HSF 4
Assay Type:Sandwich
Detection Method:ELISA
Reactivity:Mouse
Detection Range:0.78-50ng/mL
Sensitivity:0.408ng/mL
Intra CV:6.2%
Inter CV:7.6%
Linearity:
Sample1:21:41:81:16
Serum(N=5)108-118%110-119%104-116%104-116%
EDTA Plasma(N=5)89-99%105-114%105-115%86-96%
Heparin Plasma(N=5)88-96%94-103%102-111%109-117%
Recovery:
Sample TypeAverage(%)Recovery Range(%)
Serum9488-100
Plasma9690-102
Function:DNA-binding protein that specifically binds heat shock promoter elements (HSE). The HSF4A isoform represses transcription while the HSF4B isoform activates transcription.
Uniprot:Q9R0L1
Sample Type:Serum, plasma, tissue homogenates, cell culture supernates and other biological fluids
Specificity:Natural and recombinant mouse Heat shock factor protein 4
Sub Unit:Homotrimer. Exhibits constitutive DNA binding and forms trimers even in the absence of stress. Interacts with ALKBH4, DUSP26, MAPK1, MAPK2 and MAP kinase p38.
Subcellular Location:Nucleus
Storage:Please see kit components below for exact storage details
Note:For research use only
UniProt Protein Function:HSF4: DNA-binding protein that specifically binds heat shock promoter elements (HSE). Isoform HSF4A represses transcription while the isoform HSF4B activates transcription. Defects in HSF4 are the cause of cataract, zonular (CZ). A form of zonular cataract. Zonular or lamellar cataracts are opacities, broad or narrow, usually consisting of powdery white dots affecting only certain layers or zones between the cortex and nucleus of an otherwise clear lens. The opacity may be so dense as to render the entire central region of the lens completely opaque, or so translucent that vision is hardly if at all impeded. Zonular cataracts generally do not involve the embryonic nucleus, though sometimes they involve the fetal nucleus. Usually sharply separated from a clear cortex outside them, they may have projections from their outer edges known as riders or spokes. Defects in HSF4 are the cause of cataract Marner type (CAM). A form of cataract with variable and progressive opacities. Affected individuals present with zonular cataract, although some have nuclear, anterior polar, or stellate cataract. Finger malformation is observed in some kindreds. Belongs to the HSF family. 2 isoforms of the human protein are produced by alternative splicing.Protein type: Transcription, coactivator/corepressor; DNA-binding; Cell development/differentiationCellular Component: nucleoplasm; nucleusMolecular Function: DNA binding; protein phosphatase binding; sequence-specific DNA binding; transcription factor activityBiological Process: camera-type eye development; cell development; eye development; histone H3-K9 demethylation; negative regulation of transcription from RNA polymerase II promoter; positive regulation of cell differentiation; positive regulation of cell proliferation; positive regulation of transcription from RNA polymerase II promoter; regulation of transcription from RNA polymerase II promoter; regulation of transcription, DNA-dependent; transcription, DNA-dependent; visual perception
UniProt Protein Details:
NCBI Summary:
UniProt Code:Q9R0L1
NCBI GenInfo Identifier:365777402
NCBI Gene ID:26386
NCBI Accession:NP_001242971.1
UniProt Secondary Accession:Q9R0L1,Q9R0L2
UniProt Related Accession:Q9R0L1
Molecular Weight:50,239 Da
NCBI Full Name:heat shock factor protein 4 isoform 1
NCBI Synonym Full Names:heat shock transcription factor 4
NCBI Official Symbol:Hsf4
NCBI Official Synonym Symbols:HSF 4; HSTF4; ldis1; mHSF4; HSTF 4
NCBI Protein Information:heat shock factor protein 4
UniProt Protein Name:Heat shock factor protein 4
UniProt Synonym Protein Names:Heat shock transcription factor 4; HSTF 4
Protein Family:Heat shock factor protein
UniProt Gene Name:Hsf4
UniProt Entry Name:HSF4_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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