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Mouse Cystathionine beta-synthase (Cbs) ELISA Kit (MOEB1809)

SKU:
MOEB1809
Product Type:
ELISA Kit
Size:
96 Assays
Uniprot:
Q91WT9
Range:
1.56-100 ng/mL
ELISA Type:
Sandwich
Reactivity:
Mouse
€649

Description

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Mouse Cystathionine beta-synthase (Cbs) ELISA Kit

The Mouse Cystathionine Beta Synthase (CBS) ELISA Kit is specifically designed for the precise quantification of CBS levels in mouse serum, plasma, and cell culture supernatants. With its exceptional sensitivity and specificity, this kit offers accurate and dependable results, making it an excellent choice for various research applications.CBS is a vital enzyme participating in the synthesis of cysteine, regulating homocysteine levels, and producing hydrogen sulfide.

Dysregulation of CBS has been linked to various diseases, including cardiovascular disorders, neurological conditions, and metabolic disorders. Therefore, this kit serves as a valuable tool for investigating these conditions and exploring potential treatment options.In summary, the Mouse CBS ELISA Kit provides researchers with a reliable and efficient method for studying the role of CBS in health and disease, offering insights into potential therapeutic strategies.

Product Name:Mouse Cystathionine beta-synthase (Cbs) ELISA Kit
SKU:MOEB1809
Size:96T
Target:Mouse Cystathionine beta-synthase (Cbs)
Synonyms:Beta-thionase, Serine sulfhydrase
Assay Type:Sandwich
Detection Method:ELISA
Reactivity:Mouse
Detection Range:1.56-100ng/mL
Sensitivity:0.78ng/mL
Intra CV:7.5%
Inter CV:10.0%
Linearity:
Sample1:21:41:81:16
Serum(N=5)107-116%108-117%91-101%108-118%
EDTA Plasma(N=5)81-89%104-115%101-109%102-112%
Heparin Plasma(N=5)82-92%102-112%87-97%113-123%
Recovery:
Sample TypeAverage(%)Recovery Range(%)
Serum106100-112
Plasma108102-114
Function:Hydro-lyase catalyzing the first step of the transsulfuration pathway, where the hydroxyl group of L-serine is displaced by L-homocysteine in a beta-replacement reaction to form L-cystathionine, the precursor of L-cysteine. This catabolic route allows the elimination of L-methionine and the toxic metabolite L-homocysteine (By similarity). Also involved in the production of hydrogen sulfide, a gasotransmitter with signaling and cytoprotective effects on neurons.
Uniprot:Q91WT9
Sample Type:Serum, plasma, tissue homogenates, cell culture supernates and other biological fluids
Specificity:Natural and recombinant mouse Cystathionine beta-synthase
Sub Unit:Homotetramer.
Research Area:Cell Biology
Subcellular Location:Cytoplasm Nucleus
Storage:Please see kit components below for exact storage details
Note:For research use only
UniProt Protein Function:CBS: Only known pyridoxal phosphate-dependent enzyme that contains heme. Important regulator of hydrogen sulfide, especially in the brain, utilizing cysteine instead of serine to catalyze the formation of hydrogen sulfide. Hydrogen sulfide is a gastratransmitter with signaling and cytoprotective effects such as acting as a neuromodulator in the brain to protect neurons against hypoxic injury. Defects in CBS are the cause of cystathionine beta- synthase deficiency (CBSD). CBSD is an enzymatic deficiency resulting in altered sulfur metabolism and homocystinuria. The clinical features of untreated homocystinuria due to CBS deficiency include myopia, ectopia lentis, mental retardation, skeletal anomalies resembling Marfan syndrome, and thromboembolic events. Light skin and hair can also be present. Biochemical features include increased urinary homocystine and methionine. Belongs to the cysteine synthase/cystathionine beta- synthase family. 2 isoforms of the human protein are produced by alternative splicing.Protein type: EC 4.2.1.22; Amino Acid Metabolism - glycine, serine and threonine; Other Amino Acids Metabolism - selenoamino acid; Amino Acid Metabolism - cysteine and methionine; LyaseCellular Component: cytoplasm; cytosol; nucleusMolecular Function: cystathionine beta-synthase activity; cysteine synthase activity; enzyme binding; heme binding; identical protein binding; lyase activity; metal ion binding; nitrite reductase (NO-forming) activity; oxygen binding; protein homodimerization activity; pyridoxal phosphate binding; ubiquitin protein ligase bindingBiological Process: amino acid biosynthetic process; blood vessel remodeling; cerebellum morphogenesis; cysteine biosynthetic process; cysteine biosynthetic process from serine; cysteine biosynthetic process via cystathionine; endochondral ossification; homocysteine metabolic process; maternal process involved in pregnancy; negative regulation of apoptosis; regulation of blood vessel size; regulation of cGMP metabolic process; regulation of JNK activity; response to folic acid; superoxide metabolic process; transsulfuration
UniProt Protein Details:
NCBI Summary:
UniProt Code:Q91WT9
NCBI GenInfo Identifier:405778333
NCBI Gene ID:12411
NCBI Accession:NP_001258282.1
UniProt Secondary Accession:Q91WT9,Q91WU3
UniProt Related Accession:Q91WT9
Molecular Weight:63.4 kDa
NCBI Full Name:cystathionine beta-synthase isoform 2
NCBI Synonym Full Names:cystathionine beta-synthase
NCBI Official Symbol:Cbs
NCBI Official Synonym Symbols:HIP4; AI047524; AI303044
NCBI Protein Information:cystathionine beta-synthase
UniProt Protein Name:Cystathionine beta-synthase
UniProt Synonym Protein Names:Beta-thionase; Serine sulfhydrase
Protein Family:Cystathionine beta-synthase
UniProt Gene Name:Cbs
UniProt Entry Name:CBS_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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