| Field | Specification |
|---|---|
| Mfr No | |
| Alternative Names | Collagen alpha-1 (I) chain; Alpha-1 type I collagen; COL1A1 |
| Assay Time | |
| Assay Type | |
| Detection Range | |
| Expression System | |
| Gene ID | |
| Immunogen | Expression system for standard: CHO; Immunogen sequence: Q23-K277 + G1094-L1464 |
| Product Type | |
| Reactivity | |
| Sample Type(s) | cell culture supernatants, serum and plasma (heparin, EDTA, citrate). |
| Sensitivity | |
| Storage | |
| Target | |
| UniProt # |
Background
Also known as: Collagen alpha-1 (I) chain, Alpha-1 type I collagen, COL1A1.
Human Pro-collagen I alpha 1/COL1A1 (COL1A1) is a commonly measured biological analyte that can provide insight into cellular state and tissue physiology. This target is frequently investigated in Molecular & Cellular Biology research contexts. Proteases and extracellular matrix (ECM) components are central to tissue architecture and remodeling. In many experimental contexts, changes in ECM-related proteins reflect shifts in cell adhesion, migration, barrier integrity, or matrix turnover.
Biological function and remodeling context
Matrix remodeling is influenced by the balance between synthesis and degradation, often regulated by inflammatory cues, mechanical stress, and growth-factor signaling. Protease activity can unmask or release bioactive fragments, while altered ECM composition can feed back on cell behavior through mechanotransduction and receptor engagement.
Why it matters in research
- Remodeling readout: Quantification can support studies of fibrosis, wound repair, and invasion models.
- Microenvironment state: Levels may reflect stromal activation, barrier disruption, or matrix turnover.
- Mechanistic linkage: Pairing with inflammatory and growth-factor markers can clarify drivers of remodeling.
Disease and translational relevance
ECM remodeling and protease regulation are frequently discussed in the literature across oncology, cardiovascular, pulmonary, and inflammatory disease models. Interpretation of abundance should consider whether the measured analyte represents pro-forms, active forms, or fragments, and whether binding partners in the matrix influence detectability.
Sample data
| Concentration (pg/ml) | 0 | 62.5 | 125 | 250 | 500 | 1000 | 2000 | 4000 |
| O.D. | 0.021 | 0.109 | 0.199 | 0.314 | 0.623 | 1.056 | 1.829 | 2.496 |
Intra/inter assay consistency
| Intra-Assay Precision | Inter-Assay Precision | |||||
|---|---|---|---|---|---|---|
| Sample | 1 | 2 | 3 | 1 | 2 | 3 |
| n | 16 | 16 | 16 | 24 | 24 | 24 |
| Mean(pg/ml) | 105 | 360 | 1669 | 78 | 251 | 1684 |
| Standard deviation | 3.03 | 19.01 | 123.34 | 5.65 | 11.55 | 105.59 |
| CV(%) | 2.9% | 5.4% | 7.4% | 7.2% | 4.6% | 6.3% |
Kit components
Description|Quantity Pre-coated 96-well strip microplate|1 Standard|2 vials Biotinylated antibody (100x)|100ul Avidin-Biotin-Peroxidase Complex (100x)|100ul Sample Diluent|30ml Antibody Diluent|12ml Avidin-Biotin-Peroxidase Diluent|12ml Color Developing Reagent (TMB)|10ml Stop Solution|10ml Wash Buffer (25x)|20ml Adhesive plate sealers|4Materials required but not provided
- Microplate Reader capable of reading absorbance at 450nm.
- Incubator.
- Automated plate washer (optional).
- Pipettes and pipette tips capable of precisely dispensing 0.5 µl through 1 ml volumes of aqueous solutions.
- Multichannel pipettes are recommended for large amount of samples.
- Deionized or distilled water.
- 500ml graduated cylinders.
- Test tubes for dilution.
Activating reagent preparation
Aliquot 0.1 ml per well of the 4,000 pg/ml, 2,000 pg/ml, 1,000 pg/ml, 500 pg/ml, 250 pg/ml, 125 pg/ml, 62.5 pg/ml human COL1A1 standard solutions into the precoated 96-well plate. Add 0.1 ml of the sample diluent buffer into the control well (Zero well). Add 0.1 ml of each properly diluted sample of human cell culture supernatants, serum or plasma (heparin, EDTA, citrate) to each empty well. See “Sample Dilution Guideline” above for details. It is recommended that each human COL1A1 standard solution and each sample be measured in duplicate.
►How many samples can I run per plate?
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►How should I store samples before running the assay?
►What positive and negative controls should I include?
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