You searched for: Proteins and Peptides

Supplier: ProSci Inc.

Swine H1N1 Nonstructural Protein 1 peptide is meant to be used as a positive control in ELISA applications to detect Swine-Origin Influenza A antibody.

Supplier: ProSci Inc.

Seasonal H1N1 Nonstructural Protein 1 peptide is meant to be used as a positive control in ELISA applications to detect Seasonal Influenza A antibody.

Supplier: ENZO LIFE SCIENCES

This peptide sequence, RRFKRQGSFFYFF, was selected from a peptide library for optimal phosphorylation by protein kinase C zeta (PKCζ).

Supplier: ProSci Inc.

RPA interacting protein peptide is used for blocking the activity of RPA interacting protein antibody.

Supplier: ENZO LIFE SCIENCES

This peptide sequence, ARRKRKGSFFYGG, was selected from a peptide library for optimal phosphorylation by protein kinase C delta (PKCdelta).

Supplier: ProSci Inc.

SARS envelope peptide is used for blocking the activity of the SARS envelope antibody.

Supplier: ProSci Inc.

RPA interacting protein peptide is used for blocking the activity of RPA interacting protein antibody.

Supplier: Cayman Chemical

Amyloid-β (1-40) peptide Aβ (1-40) is a 40-residue protein fragment of the C-terminal portion of the β-amyloid protein implicated in Alzheimer’s disease. Aβ (1-40) is more abundant, less neurotoxic, and does not form oligomers as easily as amyloid-β (1-42) peptide (Aβ (1-42).

Supplier: ProSci Inc.

SARS matrix peptide is used for blocking the activity of the SARS matrix antibody.

Supplier: ProSci Inc.

West Nile virus peptide is used for blocking the activity of West Nile Virus Matrix Protein antibody.

Supplier: ProSci Inc.

SARS Spike peptide is used for blocking the activity of the SARS Spke antibody.

Supplier: ProSci Inc.

SARS Spike peptide is used for blocking the activity of the SARS Spke antibody.

Supplier: ENZO LIFE SCIENCES

Peptide fragment from phospholipase A2 (PLA2) activating protein (PLAP) that activates phospholipase A2 in a dose-dependent manner (10-fold at 1 µg/ml).

Supplier: ENZO LIFE SCIENCES

This peptide sequence, ENDpYINASL, is derived from a highly conserved region of the T-cell phosphatase, TCPTP, and has been shown to be an excellent general substrate for protein tyrosine phosphatases.

Supplier: ProSci Inc.

SARS matrix peptide is used for blocking the activity of the SARS matrix antibody.

Supplier: ProSci Inc.

SARS envelope peptide is used for blocking the activity of the SARS envelope antibody.

Supplier: ProSci Inc.

West Nile virus peptide is used for blocking the activity of West Nile Virus Core Protein antibody.

Supplier: ProSci Inc.

West Nile virus peptide is used for blocking the activity of West Nile Virus Core Protein antibody.

Supplier: ProSci Inc.

SARS Spike peptide is used for blocking the activity of the SARS Spike antibody.

Supplier: ProSci Inc.

SARS Spike peptide is used for blocking the activity of the SARS Spike antibody.

Supplier: ProSci Inc.

SARS Spike peptide is used for blocking the activity of the SARS Spke antibody.

Supplier: ENZO LIFE SCIENCES

The peptide sequence corresponds to amino acid residues 1149-1158 of the guanine nucleotide-releasing factor hSos1, which is essential for the control of Ras activity. Blocks the binding of hSos1 to human Grb2, a protein that binds to activated receptor tyrosine kinases.

Supplier: Shenandoah Biotechnology

Neutrophil activating peptide 2 (NAP-2), also known as CXCL7, is a member of the CXC family of chemokines. NAP-2 is a carboxyl-terminal fragment produced by proteolytic cleavage of the platelet basic protein (PBP). NAP-2 is released from platelets and binds to the receptors CXCR1 and CXCR2 to chemoattract and activate neutrophils during inflammatory events.

Supplier: ENZO LIFE SCIENCES

Anabaenopeptins are a highly diverse group of bioactive peptides produced by several genera of cyanobacteria such as Anabaena, Planktothrix, Microcystis and Nodularia. These peptides are commonly detected in cyanobacterial blooms along with the well known microcystins. Unique cyclic peptides where lysine is conserved in position 2 and cyclisation is achieved by linkage of the lysine to the C-terminal amino acid. In addition the side chain of a single amino acid is attached via a ureido bond. Bioactive peptides originally isolated from Anabaena flos-aquae NRC 525-17 where they were shown to be non-toxic in mice but had dose dependant relaxations in rat aortic preparations with endothelium precontracted with 0.1µM norpinephrine.
Anabaenopeptins inhibit protein phosphatase.

Supplier: VWR Chemicals

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

Supplier: VWR Chemicals

Biological buffers are useful for cell culture in vitro, enzyme assays and some electrophoretic applications at physiological pH.

Supplier: VWR Chemicals

A higher purity product than standard grade or Cohn fraction V material. It is negative for globulins that interfere in many assays.

Supplier: VWR Chemicals

Proteins (on anhydrous product): ≥ 90,0 %
Free acidity: Max. 1,0%
Fats: Max. 2,5%
Ignition residue (SO₄): Max. 2,75%
Loss on drying: Max. 12%

Supplier: ENZO LIFE SCIENCES

MG-132 is a potent, cell permeable and selective proteasome inhibitor (Ki = 4 nM).1 It inhibits NF-κB activation by preventing IκB degradation (IC50 = 3 μM). The peptide blocks degradation of short-lived proteins, which in turn induces HSP and ER chaperone expression, leading to thermotolerance (1 μM MG-132, 2 h.). It also stimulates neurite outgrowth in PC12 cells (20 nM optimal). The peptide has also been reported to increase the survival rate of mesenchymal stem cells following their transplantation. IC50’s for inhibition of Suc-LLVY-AMC and Z-LLL-AMC cleaving activities of proteasome were 0,85 and 0,1 μM respectively. The ubiquitin-proteasome system (UPS) and autophagy serve as two complementary, reciprocally regulated protein degradation systems, thus blockade of UPS by MG-132 activates autophagy.