Rat CCAAT/enhancer-binding protein beta (Cebpb) ELISA Kit
The Rat CCAAT Enhancer Binding Protein Beta (CEBPB) ELISA Kit is a powerful tool for the precise measurement of CEBPB levels in rat serum, plasma, and cell culture supernatants. With its exceptional sensitivity and specificity, this kit delivers consistent and accurate results, making it an invaluable asset for various research endeavors.CEBPB is a key transcription factor that plays a critical role in regulating gene expression involved in processes such as cellular differentiation, inflammation, and metabolism. Dysregulation of CEBPB has been implicated in numerous diseases, including cancer, inflammatory disorders, and metabolic conditions, highlighting its importance as a potential therapeutic target and diagnostic marker.
By utilizing the Rat CEBPB ELISA Kit, researchers can gain valuable insights into the role of CEBPB in disease pathogenesis and development, paving the way for innovative treatments and interventions. Trust in this kit to provide reliable data and contribute to advancing scientific knowledge in the field.
Product Name:
Rat CCAAT/enhancer-binding protein beta (Cebpb) ELISA Kit
Isoform 3: Acts as a dominant negative through heterodimerization with isoform 2 (PubMed:1934061). Promotes osteoblast differentiation and osteoclastogenesis.
Uniprot:
P21272
Sample Type:
Serum, plasma, tissue homogenates, cell culture supernates and other biological fluids
Specificity:
Natural and recombinant rat CCAAT/enhancer-binding protein beta
Sub Unit:
Binds DNA as a homodimer and as a heterodimer (PubMed:1934061). Interacts with MYB; within the complex, MYB and CEBPB bind to different promoter regions. Interacts with ATF4. Binds DNA as a heterodimer with ATF4 (By similarity). Can form stable heterodimers with CEBPA, CEBPD, CEBPE and CEBPG (PubMed:1377818, PubMed:1884998). Isoform 2 and isoform 3 also form heterodimers (PubMed:1934061). Interacts with TRIM28 and PTGES2. Interacts with PRDM16. Interacts with CCDC85B. Forms a complex with THOC5. Interacts with ZNF638; this interaction increases transcriptional activation. Interacts with CIDEA and CIDEC; these interactions increase transcriptional activation of a subset of CEBPB downstream target genes. Interacts with DDIT3/CHOP.Interacts with EP300; recruits EP300 to chromatin. Interacts with RORA; the interaction disrupts interaction with EP300. Interacts (not methylated) with MED23, MED26, SMARCA2, SMARCB1 and SMARCC1 (By similarity). Interacts with KAT2A and KAT2B (By similarity). Interacts with ATF5; EP300 is required for ATF5 and CEBPB interaction and DNA binding.
Research Area:
Cancer
Subcellular Location:
Nucleus Cytoplasm Translocates to the nucleus when phosphorylated at Ser-288. In T-cells when sumoylated drawn to pericentric heterochromatin thereby allowing proliferation (By similarity).
Storage:
Please see kit components below for exact storage details
Note:
For research use only
UniProt Protein Function:
C/EBP-beta: a bZIP transcription factor which can form homodimers or heterodimers with the related proteins CEBP-alpha, -delta and -gamma. Involved in immune and inflammatory responses. Specifically binds to regulatory regions of genes encoding IL-6, other cytokines and several acute-phase proteins. There are two forms of C/EBPbeta, the 38kDa liver activating protein (LAP) and the 20kDa liver inhibitory protein (LIP) which may be products of alternative translation. LAP is a transcriptional activator while LIP may inhibit C/EBPbeta transcriptional activity. Phosphorylated and activated by ERK1/2.Protein type: Motility/polarity/chemotaxis; DNA-binding; Transcription factorCellular Component: cytoplasm; nuclear chromatin; nuclear matrix; nucleoplasm; nucleusMolecular Function: chromatin binding; DNA binding; glucocorticoid receptor binding; histone acetyltransferase binding; histone deacetylase binding; kinase binding; protein binding; protein heterodimerization activity; protein homodimerization activity; RNA polymerase II transcription factor activity, enhancer binding; sequence-specific DNA binding; transcription factor bindingBiological Process: brown fat cell differentiation; defense response to bacterium; embryonic placenta development; fat cell differentiation; granuloma formation; liver development; mammary gland epithelial cell proliferation; memory; negative regulation of neuron apoptosis; negative regulation of T cell proliferation; negative regulation of transcription, DNA-dependent; neuron differentiation; ovarian follicle development; positive regulation of fat cell differentiation; positive regulation of interleukin-4 production; positive regulation of osteoblast differentiation; positive regulation of transcription from RNA polymerase II promoter; positive regulation of transcription, DNA-dependent; regulation of interleukin-6 biosynthetic process; regulation of osteoclast differentiation; regulation of transcription, DNA-dependent; response to lipopolysaccharide
UniProt Protein Details:
NCBI Summary:
This intronless gene encodes a member of the transcription factor family whose members contain a basic leucine-zipper domain. The encoded protein functions as a homodimer but can also form heterodimers with CCAAT/enhancer-binding proteins alpha, delta, and gamma. The encoded protein plays important roles in several cellular processes and in various diseases, including regulating cell proliferation, differentiation, apoptosis and neuroinflammation, and being involved in brain injury and inflammatory progression. The use of alternative in-frame AUG start codons results in multiple protein isoforms, each with different cellular localizations and distinct biological functions. [provided by RefSeq, Sep 2014]
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.
Yosra et al.
Linagliptin Attenuates Thioacetamide-Induced Hepatic Encephalopathy in rats: Modulation of C/EBP-β and CX3CL1/Fractalkine, Neuro-inflammation, Oxidative Stress and Behavioral Defects
