Proteins are used in routine laboratory procedures such as binding enzymes or coupling peptides to carrier proteins. These kits, mixture solutions, and collagen matrices fulfill a myriad of essential laboratory functions for developing relationships between proteins and other cellular components. The stimulating proteins offered have various amino acid arrangements and functions to fulfill any sample manipulation for testing purposes in any field.

VWR®, Leupeptin hemisulphate

Supplier: VWR Chemicals

A reversible inhibitor of cysteine proteases and serine proteases resembling trypsin. Inhibits trypsin, plasmin, papain, kallikrein, thrombin, and cathepsin A and B.

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VWR®, Bovine serum albumin (BSA)

Supplier: VWR Chemicals

A protease-free grade albumin for RIA and ELISA applications, produced by a heat-shock process in caprylic acid.

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VWR®, Casein acc. to Hammarsten

Supplier: VWR Chemicals

High molecular weight phosphoprotein prepared from milk.

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VWR®, Bovine serum albumin (BSA)

Supplier: VWR Chemicals

A standard grade albumin for basic applications, produced by a heat shock process in caprylic acid.

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$VWR®, Bovine serum albumin (BSA), Cohn fraction V$

VWR®, Bovine serum albumin (BSA), Cohn fraction V

Supplier: VWR Chemicals

A Cohn fraction V albumin produced by cold ethanol fractionation with minimum use of chemicals. Fatty acids and native sialic acid residues are preserved in this BSA.

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VWR®, Bovine serum albumin (BSA)

Supplier: VWR Chemicals

Produced by a heat shock process using sodium caprylate as a stabiliser with additional treatments including dialysis and deionisation.

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VWR®, Chicken native albumin (from egg)

Supplier: VWR Chemicals

VWR®, Chicken native albumin (from egg)

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VWR®, Pepstatin A

Supplier: VWR Chemicals

An aspartic protease inhibitor of pepsin, renin, and cathepsin D. Can also block HIV protease. Not soluble in water.

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VWR®, Aprotinin

Supplier: VWR Chemicals

A competitive and reversible serine protease inhibitor of chymotrypsin, trypsin, kallikrein and plasmin. Not an inhibitor of Factor Xa and thrombin.

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Aprotinin (Trypsin inhibitor, pancreatic basic) (from bovine lung), proteomics grade

Supplier: VWR Chemicals

A competitive and reversible serine protease inhibitor of chymotrypsin, trypsin, kallikrein and plasmin. Not an inhibitor of Factor Xa and thrombin.

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VWR®, Gelatin

Supplier: VWR Chemicals

VWR®, Gelatin

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VWR®, Gelatin

Supplier: VWR Chemicals

Fluorescence: 238 to 282
E. coli: equivalent
Water content: < or > 13%
pH at 25 °C: 4,0 - 5,7
Salmonella: not detectable
Standard plate count: ≤1000 /g
Viscosity: 38 to 50 mps

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VWR®, Pepstatin A

Supplier: VWR Chemicals

An aspartic acid protease inhibitor of pepsin, renin, and cathepsin D. Also an inhibitor of the HIV protease. Not water soluble.

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VWR®, Streptavidin (from Streptomyces avidinii)

Supplier: VWR Chemicals

A 60 kDa tetrameric protein that exhibits high binding affinity for biotin. Able to bind one molecule of biotin with each subunit, streptavidin is useful in affinity chromatography, ELISA, immunohistochemistry, and Western Blotting.

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Human/Mouse Recombinant TGF-B 3 (from E. coli)

Supplier: Shenandoah Biotechnology

Transforming growth factors (TGFs) are multifunctional peptides that regulate growth and differentiation in most cell types. The TGF-β family of proteins signal through serine/threonine kinase receptors. TGF-β isoforms (TGF-β1, -β2, and –β3) have overlapping, yet distinct biological actions in developing and adult tissues. TGF-β3 is an important factor in regulating cell adhesion and accelerating wound repair. TGF-β3 also functions during osteoblast proliferation, chemotaxis, and collagen synthesis.

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Human/Mouse Recombinant TGF-B 3 (from E. coli)

Supplier: Shenandoah Biotechnology

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Human Recombinant Coagulation factor IX (from Cells)

Supplier: ProSci Inc.

Coagulation factor IX（F9), is a member of the peptidase S1 family. It contains two EGF-like domains, a Gla domain and a peptidase S1 domain. It is primarily expressed in the liver and secreted in plasma. Factor IX is a vitamin K-dependent plasma protein that participates in the intrinsic pathway of blood coagulation by converting factor X to its active form in the presence of Ca2+ ions, phospholipids, and factor VIIIa. Mutations in position 43 and 46 prevents cleavage of the propeptide, mutation in position 93 probably fails to bind to cell membranes, mutation in position 191 or in position 226 prevent cleavage of the activation peptide. Mutations of human F9 can result in thrombophilia and recessive X-linked hemophilia B (HEMB). An X-linked blood coagulation disorder characterized by a permanent tendency to hemorrhage, due to factor IX deficiency. It is phenotypically similar to hemophilia A, but patients present with fewer symptoms. Many patients are asymptomatic until the hemostatic system is stressed by surgery or trauma.