H4417
Collagen from human placenta
Bornstein and Traub Type IV, solution, suitable for cell culture, High Performance
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About This Item
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biological source
human placenta
Quality Level
form
solution
technique(s)
cell culture | mammalian: suitable
surface coverage
<5 μg/cm2
impurities
Endotoxin, tested
HIV, hepatitis B and hepatitis C, none detected
storage temp.
−20°C
Gene Information
human ... COL4A1(1282) , COL4A2(1284) , COL4A3(1285) , COL4A4(1286) , COL4A5(1287) , COL4A6(1288)
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Application
Type IV collagen has been found to play a key role in angiogenesis, neurological diseases and metastasis. Collagen from human placenta has been used to assess the bioelectric effects of quinine on airway epithelial cells, to study the selective toxicity of engineered lentvirus lytic peptides and in a particle aggregation assay for the rapid detection of fibronectin, fibrinogen and collagen receptors on Staphylococcus aureus. It has also been used in a magnesium-dependent, collagen-binding assay during characterization of human lung tumor-associated antigens.
Biochem/physiol Actions
During development, collagen IV is ubiquitously distributed in BMs. During the maturation process, this network gets partially replaced in a remarkably tissue specific manner, defining BM structure and function. Collagen IV has been shown to bind to platelets, hepatocytes, keratinocytes, endothelial, mesangial, pancreatic cells and some tumor cells.
Tissue injury in the autoimmune disease Goodpasture syndrome is due to pathogenic autoantibodies targeting the Collagen IV α3 chain . Mutations in COL4A5 are associated with Alport syndrome.
Tissue injury in the autoimmune disease Goodpasture syndrome is due to pathogenic autoantibodies targeting the Collagen IV α3 chain . Mutations in COL4A5 are associated with Alport syndrome.
Components
All collagen molecules are composed of three polypeptide chains arranged in a triple helical conformation, with a primary structure that is mostly a repeating motif with glycine in every third position and proline or 4-hydroxyproline frequently preceding the glycine residue. Type IV collagen occurs only in the basement membranes and contains up to six genetically distinct a-chains.
Caution
Store this product at -20°C. It will retain activity for 2 years under these conditions.
Preparation Note
This product is supplied as a solution in 0.5 M acetic acid. It can be used to coat tissue-culture surfaces to promote cell attachment. The amount used in these applications is dependent on the cell type, plastic ware and incubation time. A recommended amount is 0.5-5 μg/cm2. It was prepared by pepsin extraction and chromatographic purification.
Other Notes
Collagen is classified into a number of structurally and genetically distinct types. We use the nomenclature proposed by Bornstein and Traub. Be wary of confusing Sigma-type designations with recognized collagen classification types.
Storage Class Code
11 - Combustible Solids
WGK
WGK 1
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
Certificates of Analysis (COA)
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Michelle K Nguyen et al.
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To describe the use of corneal collagen cross-linking (CXL) and its efficacy in the stabilization of keratorefractive procedures, including PRK, laser in-situ keratomileusis (LASIK), thermal keratoplasty, and orthokeratology. Since its introduction, CXL has quickly gained interest in the treatment of
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Fiziolohichnyi zhurnal (Kiev, Ukraine : 1994), 59(1), 97-109 (2013-05-30)
It was examined 120 persons of both sexes who had some problems with face skin. It was investigated the degree of face age changes in persons with the symptoms of skin slacses and practically healthy persons of different ages. Some
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V K Il'in et al.
Vestnik Rossiiskoi akademii meditsinskikh nauk, (2)(2), 56-62 (2013-07-04)
Dysbiotic shifts in intestinal and pharyngeal microflora were studied in 22 normal volunteers in 9-, 14-, 105- and 520-d chamber experiments simulating some of the spaceflight factors. Two preparations were administered to prevent pharyngeal and intestinal dysbiosis: oral dry probiotic
Visian toric ICL implantation for residual refractive errors after ICRS implantation and corneal collagen cross-linking in keratoconus.
Elias Jarade et al.
Journal of refractive surgery (Thorofare, N.J. : 1995), 29(7), 444-444 (2013-07-04)
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