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Collagen from human placenta

Bornstein and Traub Type V (Sigma Type IX), powder

Número CAS:
Número EC:
Número MDL:

Nível de qualidade


fonte biológica

human placenta




HIV, hepatitis B and hepatitis C, none detected


aqueous acid: soluble

nº de adesão UniProt



temperatura de armazenamento


Gene Information

human ... COL5A1(1289)

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1, 5 mg in glass bottle


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.


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

Nota de preparo

This product was prepared by a modification of the pepsin extraction and salt fractionation method of Niyibizi, C., et al., J. Biol. Chem., 259, 14170 (1984). It is an acid soluble collagen that can be dissolved in water with acetic acid added to pH 3.0 (5 mg/mL), yielding an opalescent, colorless solution.

Nota de análise

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

Outras notas

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.

Código de classe de armazenamento

13 - Non Combustible Solids



Ponto de fulgor (ºF)

Not applicable

Ponto de fulgor (ºC)

Not applicable

Equipamento de proteção individual

Eyeshields, Gloves, type N95 (US)

Certificado de análise

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Certificado de origem

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Product Information Sheet

Quotes and Ordering

Gaoyan Tang et al.
Microbiology (Reading, England), 153(Pt 8), 2447-2457 (2007-07-31)
Adhesion of Aggregatibacter actinomycetemcomitans to extracellular matrix proteins is mediated by antennae-like surface structures composed of EmaA oligomers. EmaA is an outer-membrane protein orthologous to the autotransporter YadA, a virulence determinant of Yersinia. emaA was present in the 27 strains
Sarah Finke et al.
Cell surface (Amsterdam, Netherlands), 5, 100032-100032 (2020-08-18)
Cyclic diguanylate (c-di-GMP) signalling affects several cellular processes in Bacillus cereus group bacteria including biofilm formation and motility, and CdgF was previously identified as a diguanylate cyclase promoting biofilm formation in B. thuringiensis. C-di-GMP can exert its function as a
Simon Holland et al.
Current opinion in ophthalmology, 24(4), 302-309 (2013-05-18)
Topography-guided laser refractive surgery regularizes the front corneal surface irregularities to achieve the desired refractive outcome. This is particularly applicable in highly aberrated corneas, where wavefront aberrometry is often not possible. This article aims to review the recently published results
Marco Esposito et al.
European journal of oral implantology, 6(2), 169-179 (2013-08-09)
To compare the clinical effectiveness of two implant systems: Way Milano and Kentron (Geass, Pozzuolo del Friuli, UD, Italy). A total of 64 patients requiring at least two single crowns or partial fixed dental prostheses supported by a maximum of
Katarina Wolf et al.
The Journal of cell biology, 201(7), 1069-1084 (2013-06-27)
Cell migration through 3D tissue depends on a physicochemical balance between cell deformability and physical tissue constraints. Migration rates are further governed by the capacity to degrade ECM by proteolytic enzymes, particularly matrix metalloproteinases (MMPs), and integrin- and actomyosin-mediated mechanocoupling.

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