Collagen from human placenta
SIGMA/C5533 - Bornstein and Traub Type IV, powder, BioReagent, suitable for cell culture
Synonym: Collagen Type 4
CAS Number: 9007-34-5
EC Number: 232-697-4
MDL Number: MFCD00130825
Product Type: Chemical
Collagen Type IV is a triple helix composed predominantly of two α1(IV) and one α2(IV), heterotrimers may be composed of six different α(IV)chains
SDS-PAGE Purity of Collagen from Human placenta (Cat. No. C5533) was assessed on SDS-PAGE.
Bioassay The EC50 is defined as the effective concentration of Collagen from Human placenta (Cat. No. C5533) that elicits a 50% attachment factor in cell-based bioassay.
| binding specificity | Peptide Source: Collagen Type IV |
| biological source | human placenta |
| form | powder |
| impurities | HIV, hepatitis B and hepatitis C, none detected |
| packaging | pkg of 5 mg |
| product line | BioReagent |
| Quality Level | 200  |
| solubility | acetic acid: 0.5-2.0 mg/mL (Dissolve for several hours at 2-8 °C, occasionally swirling.) |
| storage temp. | −20°C |
| technique(s) | cell culture | mammalian: suitable |
| UniProt accession no. | P02462  |
| P08572 |
|
| P29400 |
|
| P53420 |
|
| Q01955 |
|
| Q14031 |
| Application: | Collagen from human placenta has been used: • To solubilize extracellular matrix for surface functionalization. • To induce endothelial cell and rat pluripotent cell differentiation. • As an adherent in cell migration/invasion assay. • To assess the bioelectric effects of quinine on airway epithelial cells. • To study the selective toxicity of engineered lentvirus lytic peptides. • In particle aggregation assay for the rapid detection of fibronectin, fibrinogen and collagen receptors on Staphylococcus aureus. • In a magnesium-dependent, collagen-binding assay during characterization of human lung tumor-associated antigens. |
| Biochem/physiol Actions: | Type IV collagen maintains cell division and growth. Abnormal collagen secretion affects basement membrane formation. The collagen type IV, α1 (COL4A1) gene is overexpressed in gastric cancer. Mutation in COL4A1 contributes to intracerebral hemorrhage in adults and children. Cerebrovascular disease is resulted due to COL4A1 and COL4A2 mutations. Type IV collagen has been found to play a key role in angiogenesis, neurological diseases and metastasis. During development, collagen IV is ubiquitously distributed in the basement membranes (BMs). During the maturation process, this network gets partially replaced in a remarkably tissue specific manner, defining the 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 the pathogenic autoantibodies targeting the collagen IV α3 chain. Mutations in the COL4A5 gene are associated with Alport syndrome. |
| Disclaimer: | This product should be stored desiccated at -20°C, and will retain activity in these conditions for 3 years. |
| General description: | 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. Type IV collagens are localized to the basement membrane and they are network-forming proteins. It is encoded by six different genes: collagen type IV α1 (COL4A1), COL4A2, COL4A3, COL4A4, COL4A5 and COL4A6. Both COL4A1 and COL4A2 genes are mapped to human chromosome 13q34. The proteins encoded by the two genes share 45% homology. They contain: a non-collagenous (NC1) domain, triple-helical collagenous domain and Gly-Xaa-Yaa repeats in common. Both COL4A3 and COL4A4 genes are located on human chromosome 2q36.3. In tissues, type IV collagens are present as procollagens. |
| 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. |
| Preparation Note: | This is a lyophilized powder that can be reconstituted in sterile .5 M acetic acid, PBS or water at 1 mg/mL. A PBS solution will be stable for at least one year at -20°C. It was prepared by a modification of the pepsin extraction method of Niyibizi, C. et. al |
| RIDADR | NONH for all modes of transport |
| WGK Germany | WGK 1 |
| Flash Point(F) | Not applicable |
| Flash Point(C) | Not applicable |
| Storage Temp. | −20°C |
| UNSPSC | 12352202 |