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Update to Avantor’s response to the coronavirus (COVID-19) pandemic

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Proteins and Peptides


29,648  results were found
Proteins and Peptides

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.


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Supplier:  Sino Biological
Description:   A DNA sequence encoding the rat PROM1 (NP_001103607.1) (Asn171-Tyr424) was expressed with a polyhistidine tag at the N-terminus.
Supplier:  Prosci
Description:   HCoV-229E Recombinant Human Coronavirus Nucleocapsid (229E) Protein (from bacteria)
Catalog Number: (77133-890)

Supplier:  Prosci
Description:   TIMP1 Peptide
Supplier:  Sino Biological
Description:   A DNA sequence encoding the second extracellular domain of human CLEC3B (AAX37102.1) (Met 1-Val 202) was fused with a polyhistidine tag at the C-terminus.
Catalog Number: (77132-126)

Supplier:  Prosci
Description:   VN1R1 Peptide
Supplier:  Sino Biological
Description:   A DNA sequence encoding the <i>E.coil</i> BirA (P06709) (Met1–Lys321) was fused with an N-terminal polyhistidine-tagged MBP tag at the N-terminus.
Supplier:  Prosci
Description:   Human Recombinant PDGF R alpha/PDGFRA Protein (from HEK293 cells)
Supplier:  Sino Biological
Description:   A DNA sequence encoding the rat IL2RB (NP_037327.1) (Met1-Glu239) was expressed with a polyhistidine tag at the C-terminus.

Supplier:  Prosci
Description:   Visfatin is a 55 kDa protein produced and secreted primarily by white adipose tissue. Recently, Visfatin was isolated from visceral fat deposits and shown to possess insulin-mimetic activity. Like insulin, Visfatin exerts hypoglycemic effects by interacting with the insulin receptor. The binding affinity of Visfatin for the insulin receptor is similar to that of insulin, but it does not compete with insulin, suggesting that the two proteins interact with different receptor sites. The circulating levels of Visfatin are much lower than those of insulin and are not affected by feeding, implying that the hypoglycemic effect of Visfatin may not be of physiological importance. The plasma Visfatin levels, like those of Leptin, correlate positively with the percent of body fat and increase during the development of obesity. Another similarity between Visfatin and Leptin is that their amino acid sequence is highly conserved across different mammalian species and shows no homology to any known protein. Receptors for both Leptin (Ob-R) and Visfatin (i.e. the insulin receptor) are expressed by neurons within the arcuate nucleus of the hypothalamus, a brain area that plays a pivotal role in the regulation of energy metabolism. Although the metabolic function of Visfatin is still unknown, it appears that this newly identified adipocytokine might play an important role, similar to that of Leptin, in the regulation of body weight, i.e. as an afferent signal reflecting excess body fat. Recombinant human Visfatin is a 52.5 kDa protein containing 465 amino acid residues (isoform 1).
Catalog Number: (77128-806)

Supplier:  Prosci
Description:   Nephrin Peptide
Catalog Number: (77122-872)

Supplier:  Prosci
Description:   MDH1/MOR2 Peptide
Catalog Number: (77119-954)

Supplier:  Prosci
Description:   IDH3G Peptide
Catalog Number: (77120-402)

Supplier:  Prosci
Description:   SART1 Peptide
Supplier:  Sino Biological
Description:   A DNA sequence encoding the mouse ERBB3 (Q61526) extracellular domain (Met 1-His 641) was expressed, with a C-terminal polyhistidine tag.
Catalog Number: (77120-300)

Supplier:  Prosci
Description:   zgc 63629 Peptide
Catalog Number: (77126-784)

Supplier:  Prosci
Description:   WNT9B Peptide
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Stock for this item is limited, but may be available in a warehouse close to you. Please make sure that you are logged in to the site so that available stock can be displayed. If the call is still displayed and you need assistance, please call us at 1-800-932-5000.
Stock for this item is limited, but may be available in a warehouse close to you. Please make sure that you are logged in to the site so that available stock can be displayed. If the call is still displayed and you need assistance, please call us at 1-800-932-5000.
This product is marked as restricted and can only be purchased by approved Shipping Accounts. If you need further assistance, email VWR Regulatory Department at Regulatory_Affairs@vwr.com
-Additional Documentation May be needed to purchase this item. A VWR representative will contact you if needed.
This product has been blocked by your organization. Please contact your purchasing department for more information.
The original product is no longer available. The replacement shown is available.
This product is no longer available. Alternatives may be available by searching with the VWR Catalog Number listed above. If you need further assistance, please call VWR Customer Service at 1-800-932-5000.
7,601 - 7,616  of 29,648