Product Details
Product Details
Product Specification
| Species | Cynomolgus |
| Synonyms | MMP-8,CLG1,HNC,PMNL-CL |
| Accession | XP_005579523.2 |
| Amino Acid Sequence | Phe21-Ser467, with C-terminal 10*His |
| Expression System | HEK293 |
| Molecular Weight | 65-75kDa |
| Purity | >95% by SDS-PAGE |
| Endotoxin | <0.1EU/μg |
| Conjugation | Unconjugated |
| Tag | His Tag |
| Physical Appearance | Lyophilized powder |
| Storage Buffer | PBS, pH7.4 |
| Reconstitution | Reconstitute at 0.1-1 mg/ml according to the size in ultrapure water after rapid centrifugation. |
| Stability & Storage | 12 months from date of receipt, -20 to -70 °C as supplied; 6 months, -20 to -70 °C under sterile conditions after reconstitution; 1 week, 2 to 8 °C under sterile conditions after reconstitution; Please avoid repeated freeze-thaw cycles. |
| Reference |
1、Hasty K A. et al. (1990) Human neutrophil collagenase. A distinct gene product with homology to other matrix metalloproteinases. J. Biol. Chem. 265: 11421-11424. 2、Blaeser J. et al. (1991) Mercurial activation of human polymorphonuclear leucocyte procollagenase. Eur. J. Biochem. 202: 1223-1230. |
Background
Protocol
Assay protocol
Principle: Measured by its ability to cleave a peptide substrate, Mca-PLGL-Dpa-AR-NH2.
Materials
Assay Buffer: 50 mM Tris, 10 mM CaCl2, 150 mM NaCl, 0.05% (w/v) Brij 35, pH 7.5 (TCNB)
MMP-8 His Tag Protein, Cynomolgus
p-aminophenylmercuric acetate (APMA) (Aladdin, Catalog # P649286)
Fluorogenic Peptide Substrate: MCA-Pro-Leu-Gly-Leu-DPA-Ala-Arg-NH2 (R&D, ES001)
Calibration standard: MCA-Pro-Leu-OH (Shyuanye, T77046)
- 96 ELISA Removable Plate, Black, High binding (GENEVER, Catalog # GMO2-96H)
Plate Reader (PerkinElmer, excitation 320 nm, and emission 405 nm)
Produce
Activate MMP-8 at 100 μg/mL with 1 mM APMA in Assay Buffer. Incubate at 37 ℃ for 1 hour.
Dilute activated MMP-8 (From the step 1) to 2, 1 and 0.5 μg/mL in Assay Buffer.
Dilute Substrate to 20 μM in Assay Buffer.
Load 50 μL of the dilute MMP-8 Protein (From the step 2) into a black well plate and start the reaction by adding 50 μL of 20 μM Substrate. Include a Substrate with Assay Buffer as Blank.
Read at excitation and emission wavelengths of 320 nm and 405 nm, kinetic mode, 60s/cycle, 10 cycles.
Calculate specific activity.
• Standard Curve
1. Dilute Calibration standard to 10 μM in Assay Buffer and prepare serial dilutions.
2. Add 100 μL of each serially diluted standard and blank (Assay buffer) into appropriate wells of a 96-well, the standard curve has a range of 500, 250, 125, 62.5, 31.25, 15.63, 7.81, 3.91, 1.95 pmol per well.
3. Read at excitation and emission wavelengths of 320 nm and 405 nm, respectively in endpoint mode.
4. Linear Regression of MCA-Pro-Leu-OH (pmol)(y) – RFU-Blank(x).
Specific Activity (pmol/min/µg) = |
Adjusted Vmax (RFU/min) x Conversion Factor (pmol/RFU) |
amount of enzyme (µg) |
Picture
Picture
SDS-PAGE

