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3Helix - Model Auto-CHP - Collagen Hybridizing Peptide, Biotin Conjugate for Automated Staining
From3Helix Inc
The collagen hybridizing peptide (CHP) is a novel and unique peptide that specifically binds unfolded collagen chains, bothin vitroand in vivo.[1,2,3] By sharing the Gly-X-Y repeating sequence of natural collagen, CHP has a strong capability to hybridize with denatured collagen chains by reforming the triple helical structure, in a fashion similar to DNA fragments annealing to complementary DNA strands. CHP is extremely specific: it has negligible affinity to intact collagen molecules due to lack of binding sites, and it is inert towards non-specific binding because of its neutral and hydrophilic nature.
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- CHP is a powerful histopathology tool which enables straightforward detection of inflammation and tissue damage caused by a large variety of diseases, as well as tissue remodeling during development and aging.[3]CHP robustly visualizes the total collagen content of tissue sections that have undergone heat-induced epitope retrieval (HIER). The ratio between damaged collagen and total collagen can be a useful metric for evaluating disease/damage progression over time. Additionally, the signal can be quantified using image analysis software including ImageJ for fluorescent quantification (See Application Note)
- The Auto B-CHP incorporates our newest sequence which allows them to be used with automated staining platforms that are “Open” such as the Bond-RXm (Leica), Discovery Ultra (Roche), and Valent (Biocare Medical) systems. The new sequence will not refold over the course of tissue staining and they do not require a pre-activation heating step. The Auto B-CHP is a powerful histology tool which enables straightforward detection of inflammation and tissue damage caused by a large variety of diseases, as well as tissue remodeling during development and aging. [3] The compatibility with numerous “Open” automated staining platforms enables easy, consistent, and reproducible staining that can be done simultaneously with other stains.
- Auto B-CHP is labeled with biotin for avidin/streptavidin-mediated detection. The biotin label offers flexible detection options, such as non-fluorescence and HRP-enzyme methods, to avoid background and enhance signal.
- Specificity:CHP binds to the unfolded triple-helical chains of all collagen types(e.g., I, II, III, IV, etc).[3,7]
Specification
Synonyms | Auto B-CHP, Auto Biotin-CHP, collagen mimetic peptide (CMP) |
Molecular Weight | 2981.19 g/mol |
Purity | 95% by HPLC |
Conjugate | Single biotin tag per peptide |
Content | Purified lyophilized powder, white color |
Storage | -20 °C as powder (long term storage), 4 °C after reconstitution in water |