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Key Documents

C8374

Sigma-Aldrich

Human Collagen Type IV

from human placenta, powder

Sinônimo(s):

Collagen from human placenta, Collagen Type 4

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About This Item

Número CAS:
Número CE:
Número MDL:
Código UNSPSC:
12352202
NACRES:
NA.61

product name

Colágeno, Bornstein and Traub Type IV, powder

fonte biológica

human placenta

Nível de qualidade

Ensaio

>85% (SDS-PAGE)

forma

powder

técnica(s)

cell culture | stem cell: suitable

Impurezas

HIV, hepatitis B and hepatitis C, none detected

solubilidade

0.5 M acetic acid: 1 mg/mL, clear to very slightly hazy

temperatura de armazenamento

−20°C

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Aplicação

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.

Ações bioquímicas/fisiológicas

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.

Componentes

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.

Atenção

This product should be stored desiccated at -20°C, and will retain activity in these conditions for 3 years.

Nota de preparo

This powder 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.

Nota de análise

An SDS polyacrylamide gel electrophoresis test run under reducing conditions consistent with basement membrane collagen yields three major bands.

Outras notas

O colágeno é classificado em diversos tipos estrutural e geneticamente distintos. Usamos a nomenclatura proposta por Bornstein e Traub. Tome cuidado para não confundir as designações de tipos da Sigma com tipos de classificação de colágenos reconhecidos.

Código de classe de armazenamento

11 - Combustible Solids

Classe de risco de água (WGK)

WGK 1

Ponto de fulgor (°F)

Not applicable

Ponto de fulgor (°C)

Not applicable


Certificados de análise (COA)

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