Description
CKS1 Colorimetric Cell-Based ELISA
The CKS1 Colorimetric Cell-based ELISA Kit is a powerful tool for researchers studying cell cycle progression and proliferation. This kit allows for the easy and accurate detection of CKS1 levels in cell lysates and culture supernatants, providing valuable insights into cell cycle regulation and potential therapeutic targets.CKS1 is a key protein involved in regulating the cell cycle by forming a complex with cyclin-dependent kinases. Dysregulation of CKS1 expression has been implicated in various diseases, including cancer and developmental disorders.
By accurately measuring CKS1 levels, researchers can better understand the mechanisms underlying these conditions and identify potential treatment strategies.With its high sensitivity and precise measurement capabilities, the CKS1 Colorimetric Cell-based ELISA Kit offers a reliable and reproducible method for analyzing CKS1 expression in a variety of cell types and experimental conditions. This kit is essential for any laboratory studying cell cycle regulation and seeking to uncover new insights into disease mechanisms.
| Product Name: | CKS1 Colorimetric Cell-Based ELISA |
| Product Code: | CBCAB01047 |
| ELISA Type: | Cell-Based |
| Target: | CKS1 |
| Reactivity: | Human, Mouse |
| Dynamic Range: | > 5000 Cells |
| Detection Method: | Colorimetric 450 nmStorage/Stability:4°C/6 Months |
| Format: | 96-Well Microplate |
The CKS1 Colorimetric Cell-Based ELISA Kit is a convenient, lysate-free, high throughput and sensitive assay kit that can detect CKS1 protein expression profile in cells. The kit can be used for measuring the relative amounts of CKS1 in cultured cells as well as screening for the effects that various treatments, inhibitors (ie siRNA or chemicals), or activators have on CKS1.
Qualitative determination of CKS1 concentration is achieved by an indirect ELISA format. In essence, CKS1 is captured by CKS1-specific primary antibodies while the HRP-conjugated secondary antibodies bind the Fc region of the primary antibody. Through this binding, the HRP enzyme conjugated to the secondary antibody can catalyze a colorimetric reaction upon substrate addition. Due to the qualitative nature of the Cell-Based ELISA, multiple normalization methods are needed:
| 1. | A monoclonal antibody specific for human GAPDH is included to serve as an internal positive control in normalizing the target absorbance values. |
| 2. | Following the colorimetric measurement of HRP activity via substrate addition, the Crystal Violet whole-cell staining method may be used to determine cell density. After staining, the results can be analysed by normalizing the absorbance values to cell amounts, by which the plating difference can be adjusted. |
| Database Information: | Gene ID: 1163, UniProt ID: P61024, OMIM: 116900, Unigene: Hs.374378 |
| Gene Symbol: | CKS1 |
| Sub Type: | None |
| UniProt Protein Function: | CKS1: Binds to the catalytic subunit of the cyclin dependent kinases and is essential for their biological function. Belongs to the CKS family. |
| UniProt Protein Details: | Protein type:Protein kinase, regulatory subunit; Cell cycle regulation Chromosomal Location of Human Ortholog: 1q21.2 Cellular Component: nucleoplasm Molecular Function:protein binding; cyclin-dependent protein kinase regulator activity Biological Process: cell proliferation; cell division; mitotic cell cycle; regulation of cyclin-dependent protein kinase activity; G1/S transition of mitotic cell cycle |
| NCBI Summary: | CKS1B protein binds to the catalytic subunit of the cyclin dependent kinases and is essential for their biological function. The CKS1B mRNA is found to be expressed in different patterns through the cell cycle in HeLa cells, which reflects a specialized role for the encoded protein. At least two transcript variants have been identified for this gene, and it appears that only one of them encodes a protein. [provided by RefSeq, Sep 2008] |
| UniProt Code: | P61024 |
| NCBI GenInfo Identifier: | 46577579 |
| NCBI Gene ID: | 1163 |
| NCBI Accession: | P61024.1 |
| UniProt Secondary Accession: | P61024,P33551, |
| UniProt Related Accession: | P61024 |
| Molecular Weight: | 79 |
| NCBI Full Name: | Cyclin-dependent kinases regulatory subunit 1 |
| NCBI Synonym Full Names: | CDC28 protein kinase regulatory subunit 1B |
| NCBI Official Symbol: | CKS1B |
| NCBI Official Synonym Symbols: | CKS1; ckshs1; PNAS-16; PNAS-18 |
| NCBI Protein Information: | cyclin-dependent kinases regulatory subunit 1; CKS-1; PNAS-143; CDC28 protein kinase 1; CDC28 protein kinase 1B; CDC2-associated protein CKS1; cell division control protein CKS1; NB4 apoptosis/differentiation related protein |
| UniProt Protein Name: | Cyclin-dependent kinases regulatory subunit 1 |
| UniProt Gene Name: | CKS1B |
| UniProt Entry Name: | CKS1_HUMAN |
| Component | Quantity |
| 96-Well Cell Culture Clear-Bottom Microplate | 2 plates |
| 10X TBS | 24 mL |
| Quenching Buffer | 24 mL |
| Blocking Buffer | 50 mL |
| 15X Wash Buffer | 50 mL |
| Primary Antibody Diluent | 12 mL |
| 100x Anti-Phospho Target Antibody | 60 µL |
| 100x Anti-Target Antibody | 60 µL |
| Anti-GAPDH Antibody | 60 µL |
| HRP-Conjugated Anti-Rabbit IgG Antibody | 12 mL |
| HRP-Conjugated Anti-Mouse IgG Antibody | 12 mL |
| SDS Solution | 12 mL |
| Stop Solution | 24 mL |
| Ready-to-Use Substrate | 12 mL |
| Crystal Violet Solution | 12 mL |
| Adhesive Plate Seals | 2 seals |
The following materials and/or equipment are NOT provided in this kit but are necessary to successfully conduct the experiment:
- Microplate reader able to measure absorbance at 450 nm and/or 595 nm for Crystal Violet Cell Staining (Optional)
- Micropipettes with capability of measuring volumes ranging from 1 µL to 1 ml
- 37% formaldehyde (Sigma Cat# F-8775) or formaldehyde from other sources
- Squirt bottle, manifold dispenser, multichannel pipette reservoir or automated microplate washer
- Graph paper or computer software capable of generating or displaying logarithmic functions
- Absorbent papers or vacuum aspirator
- Test tubes or microfuge tubes capable of storing ≥1 ml
- Poly-L-Lysine (Sigma Cat# P4832 for suspension cells)
- Orbital shaker (optional)
- Deionized or sterile water
*Note: Protocols are specific to each batch/lot. For the correct instructions please follow the protocol included in your kit.
| Step | Procedure |
| 1. | Seed 200 µL of 20,000 adherent cells in culture medium in each well of a 96-well plate. The plates included in the kit are sterile and treated for cell culture. For suspension cells and loosely attached cells, coat the plates with 100 µL of 10 µg/ml Poly-L-Lysine (not included) to each well of a 96-well plate for 30 minutes at 37°C prior to adding cells. |
| 2. | Incubate the cells for overnight at 37°C, 5% CO2. |
| 3. | Treat the cells as desired. |
| 4. | Remove the cell culture medium and rinse with 200 µL of 1x TBS, twice. |
| 5. | Fix the cells by incubating with 100 µL of Fixing Solution for 20 minutes at room temperature. The 4% formaldehyde is used for adherent cells and 8% formaldehyde is used for suspension cells and loosely attached cells. |
| 6. | Remove the Fixing Solution and wash the plate 3 times with 200 µL 1x Wash Buffer for five minutes each time with gentle shaking on the orbital shaker. The plate can be stored at 4°C for a week. |
| 7. | Add 100 µL of Quenching Buffer and incubate for 20 minutes at room temperature. |
| 8. | Wash the plate 3 times with 1x Wash Buffer for 5 minutes each time. |
| 9. | Add 200 µL of Blocking Buffer and incubate for 1 hour at room temperature. |
| 10. | Wash 3 times with 200 µL of 1x Wash Buffer for 5 minutes each time. |
| 11. | Add 50 µL of 1x primary antibodies (Anti-CKS1 Antibody and/or Anti-GAPDH Antibody) to the corresponding wells, cover with Parafilm and incubate for 16 hours (overnight) at 4°C. If the target expression is known to be high, incubate for 2 hours at room temperature. |
| 12. | Wash 3 times with 200 µL of 1x Wash Buffer for 5 minutes each time. |
| 13. | Add 50 µL of 1x secondary antibodies (HRP-Conjugated AntiRabbit IgG Antibody or HRP-Conjugated Anti-Mouse IgG Antibody) to corresponding wells and incubate for 1.5 hours at room temperature. |
| 14. | Wash 3 times with 200 µL of 1x Wash Buffer for 5 minutes each time. |
| 15. | Add 50 µL of Ready-to-Use Substrate to each well and incubate for 30 minutes at room temperature in the dark. |
| 16. | Add 50 µL of Stop Solution to each well and read OD at 450 nm immediately using the microplate reader. |
(Additional Crystal Violet staining may be performed if desired – details of this may be found in the kit technical manual.)
