| Product Name | Human Procollagen I N-terminal peptide (PINP) ELISA Kit |
|---|---|
| Description | The PINP molecule is similar to PIIINP consisting of three distinct structural domains: Col 1 is on the aminoterminal side of the molecule, while Col 2 and Col 3 are situated on the middle of the helically structured molecule (KÙhn et al. 1982). The PINP molecule has a molecular mass of 35 000 and is cleared by scavenger receptors in liver endothelial cells (Melkko et al. 1994). PINP often occurs in circulation in two forms of different molecular sizes. One is identical to the trimeric authentic antigen (intact PINP) whereas the other consists of smaller forms of PINP, resembling a single domain of the pro_1(I) chain of PINP and is probably a degradation product of type I procollagen or I pN-collagen. Thus, an assay of intact PINP rather than total PINP appears to be more sensitive in detecting changes in the rate of type I collagen synthesis (Melkko et al. 1996, Risteli & Risteli 1999). This assay has high sensitivity and excellent specificity for detection of Human PINP. No significant cross-reactivity or interference between Human PINP and analogues was observed. |
| Method | Sandwich ELISA |
| Detection Range | 2.47-200 ng/mL |
| Sensitivity | 0.91 ng/mL |
| Reactivity | Human |
| Sample Types | Serum, Plasma, Other biological fluids. |
| Background | The PINP molecule is similar to PIIINP consisting of three distinct structural domains: Col 1 is on the aminoterminal side of the molecule, while Col 2 and Col 3 are situated on the middle of the helically structured molecule (KÙhn et al. 1982). The PINP molecule has a molecular mass of 35 000 and is cleared by scavenger receptors in liver endothelial cells (Melkko et al. 1994). PINP often occurs in circulation in two forms of different molecular sizes. One is identical to the trimeric authentic antigen (intact PINP) whereas the other consists of smaller forms of PINP, resembling a single domain of the pro_1(I) chain of PINP and is probably a degradation product of type I procollagen or I pN-collagen. Thus, an assay of intact PINP rather than total PINP appears to be more sensitive in detecting changes in the rate of type I collagen synthesis (Melkko et al. 1996, Risteli & Risteli 1999). |
| Supplier | Abebio |
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