Description
Cyclin A Colorimetric Cell-Based ELISA Kit
The Cyclin A Colorimetric Cell-Based ELISA Kit is specially designed for the precise measurement of Cyclin A levels in various cell types, making it a valuable tool for researchers studying cell cycle regulation and proliferation. This kit offers high sensitivity and specificity, ensuring accurate and reliable results for a wide range of applications.Cyclin A is a key protein involved in cell cycle progression, specifically in the G1/S and G2/M transitions. Dysregulation of Cyclin A expression has been implicated in various diseases, including cancer and developmental disorders, making it a crucial biomarker for understanding these conditions and exploring potential therapeutic interventions.
With its comprehensive features and user-friendly protocol, the Cyclin A Colorimetric Cell-Based ELISA Kit is an essential resource for scientists seeking to delve deeper into the intricate mechanisms of cell cycle regulation and its implications in disease pathology.
| Product Name: | Cyclin A Colorimetric Cell-Based ELISA Kit |
| Product Code: | CBCAB00607 |
| ELISA Type: | Cell-Based |
| Target: | Cyclin A |
| Reactivity: | Human, Mouse, Rat |
| Dynamic Range: | > 5000 Cells |
| Detection Method: | Colorimetric 450 nmStorage/Stability:4°C/6 Months |
| Format: | 96-Well Microplate |
The Cyclin A Colorimetric Cell-Based ELISA Kit is a convenient, lysate-free, high throughput and sensitive assay kit that can detect Cyclin A protein expression profile in cells. The kit can be used for measuring the relative amounts of Cyclin A in cultured cells as well as screening for the effects that various treatments, inhibitors (ie siRNA or chemicals), or activators have on Cyclin A.
Qualitative determination of Cyclin A concentration is achieved by an indirect ELISA format. In essence, Cyclin A is captured by Cyclin A-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: 8900/890, UniProt ID: P78396/P20248, OMIM: 604036/123835, Unigene: Hs.417050/Hs.58974 |
| Gene Symbol: | CCNA1/CCNA2 |
| Sub Type: | None |
| UniProt Protein Function: | CCNA1: May be involved in the control of the cell cycle at the G1/S (start) and G2/M (mitosis) transitions. May primarily function in the control of the germline meiotic cell cycle and additionally in the control of mitotic cell cycle in some somatic cells. Belongs to the cyclin family. Cyclin AB subfamily. 3 isoforms of the human protein are produced by alternative splicing. |
| UniProt Protein Details: | Protein type:Cancer Testis Antigen (CTA); Cell cycle regulation; Nuclear receptor co-regulator Chromosomal Location of Human Ortholog: 13q12.3-q13 Cellular Component: nucleoplasm; microtubule cytoskeleton; cytosol Molecular Function:protein binding; protein kinase binding Biological Process: G1/S-specific transcription in mitotic cell cycle; mitosis; male meiosis I; cell division; regulation of G2/M transition of mitotic cell cycle; spermatogenesis; regulation of cyclin-dependent protein kinase activity; mitotic cell cycle; G2/M transition of mitotic cell cycle; G1/S transition of mitotic cell cycle |
| NCBI Summary: | The protein encoded by this gene belongs to the highly conserved cyclin family, whose members are characterized by a dramatic periodicity in protein abundance through the cell cycle. Cyclins function as regulators of CDK kinases. Different cyclins exhibit distinct expression and degradation patterns which contribute to the temporal coordination of each mitotic event. The cyclin encoded by this gene was shown to be expressed in testis and brain, as well as in several leukemic cell lines, and is thought to primarily function in the control of the germline meiotic cell cycle. This cyclin binds both CDK2 and CDC2 kinases, which give two distinct kinase activities, one appearing in S phase, the other in G2, and thus regulate separate functions in cell cycle. This cyclin was found to bind to important cell cycle regulators, such as Rb family proteins, transcription factor E2F-1, and the p21 family proteins. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2008] |
| UniProt Code: | P78396 |
| NCBI GenInfo Identifier: | 8134359 |
| NCBI Gene ID: | 8900 |
| NCBI Accession: | P78396.1 |
| UniProt Secondary Accession: | P78396,Q5T3V0, Q5U0G2, Q8IY91, B7Z7E3, |
| UniProt Related Accession: | P78396 |
| Molecular Weight: | 465 |
| NCBI Full Name: | Cyclin-A1 |
| NCBI Synonym Full Names: | cyclin A1 |
| NCBI Official Symbol: | CCNA1 |
| NCBI Official Synonym Symbols: | CT146 |
| NCBI Protein Information: | cyclin-A1 |
| UniProt Protein Name: | Cyclin-A1 |
| Protein Family: | Cyclin |
| UniProt Gene Name: | CCNA1 |
| UniProt Entry Name: | CCNA1_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-Cyclin A 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.)
