Products & Reviews

Contains 4 membranes-each spotted in duplicate with 111 different cytokine antibodies  

A membrane-based antibody array for the parallel determination of the relative levels of selected human cytokines and chemokines. Validated for analyte detection in cell culture supernates, cell lysates, tissue lysates, serum, plasma, saliva, urine, and human milk.

R&D Proteome Profiler Antibody Arrays R&D Proteome Profiler Arrays allow for the measurement of multiple proteins in a single sample. These arrays require no specialized equipment, and eliminate the need for multiple immunoprecipitation/Western blot experiments. R&D Array kits contain buffers, detection antibodies, and membranes spotted in duplicate with capture antibodies carefully selected for their specificity. R&D Arrays…

R&D GM-CSF -Recombinant Mouse Protein GM-CSF was initially characterized as a factor that can support the in vitro colony formation of granulocyte-macrophage progenitors. It is also a growth factor for erythroid, megakaryocyte, and eosinophil progenitors. GM-CSF is produced by a number of different cell types in response to cytokine or inflammatory stimuli. Specifications and Use for R&D GM-CSF Source of R&D GM-CSF • A DNA…

The Mosaic ELISA Human Cytokine Panel 1 is an excellent tool for the detection of 8 different cytokines in the same sample. Mosaic ELISA kits employ multiplex microarray technology to provide an accurate, efficient, and economical alternative to conducting multiple traditional ELISA experiments. Cytokines are pleiotropic extracellular signaling molecules that influence myriad physiological and pathological processes. Released…

India Variant B.1.617 Spike Protein, as well as spike mutant proteins from the UK, South African, and Brazilian Variants. Available now!

Ectodomain, stabilized prefusion conformation, resistant to furin cleavage

HEK293 expressed, high ACE-2 binding  

Tn5 insect cell expressed, high ACE-2 binding  

HEK293 expressed, high ACE-2 binding  

Sf21 insect cell expressed, over 95% purity  

SARS-CoV-2, which causes the global pandemic coronavirus disease 2019 (Covid-19), belongs to a family of viruses known as coronaviruses that are commonly comprised of four structural proteins. One of the proteins, SARS-CoV-2 Spike Protein (S Protein), is a glycoprotein that mediates membrane fusion and viral entry, and as such is a crucial COVID-19 target.  R&D Systems SARS-CoV-2 Spike range of bioactive proteins are valida…

CHO expressed. GCN4-IZ trimerization domain. Prefusion Conformation. High ACE-2 binding  

South African Variant  

UK Variant. Resistant to Furin & Stabilized Prefusion Conformation

Brazilian Variant

R&D Flow Cytometry Kit - Flow cytometry kits designed for analysis of cell populations use up to four fluorochrome-conjugated antibodies. Flow cytometry facilitates quantitative, multiparameter analysis of cell populations based on the expression of cell surface and/or intracellular molecules. R&D Systems offers a wide range of biotin-, fluorescein-, phycoerythrin-, or allophycocyanin-conjugated monoclonal antibodies specific…

R&D Proteome Profiler Human Phospho-RTK Array Kit - For the parallel determination of the relative level of tyrosine phosphorylation of receptor tyrosine kinases (RTKs). Proteome Profiler Human Phospho-RTK Array Kit contains 4 membranes - each spotted in duplicate with 42 different RTK antibodies. The R&D Human Phospho-Receptor Tyrosine Kinase (Phospho-RTK) Array is a rapid, sensitive, and economical tool used to detect chang…

R&D Prostaglandin E2 Parameter ELISA Kit - For the quantitative determination of Prostaglandin E2 (PGE2) in cell culture supernates, serum, plasma, and urine. The R&D Parameter PGE2 ELISA is a 3.5 hour forward sequential competitive enzyme immunoassay designed to measure PGE2 in cell culture supernates, serum, plasma, and urine. This R&D Paramerter assay is based on the forward sequential competitive binding technique in whic…

R&D Proteome Profiler Human Phospho-Kinase Array Kit - Human Phospho-Kinase Array Kit for the parallel determination of the relative levels of protein phosphorylation. The kit contains 4 sets of 2 membranes - each spotted in duplicate with 46 different kinase antibodies. The R&D Human Phospho-Kinase Array is a rapid, sensitive, and economical tool to simultaneously detect the relative levels of phosphorylation of 46 kinase ph…

R&D VEGF -Recombinant Human VEGF 165R Protein Vascular endothelial growth factor (VEGF or VEGF-A), also known as vascular permeability factor (VPF), is a potent mediator of both angiogenesis and vasculogenesis in the fetus and adult. Specifications and Use for R&D VEGF 165RSource of R&D VEGF• A DNA sequence encoding the 165 amino acid residue variant of human VEGF (Leung, D.W. et al., 1989, Science 246:1306) was expressed in…

R&D Activin - Recombinant  Activin A Protein from Human/Mouse/Rat Activins and inhibins, members of the TGF-β superfamily, have been shown to have a wide range of biological activities including: mesoderm induction, neural cell differentiation, bone remodeling, hematopoiesis and reproductive physiology. Specifications and Use for R&D Activin ASource of R&D Activin• A DNA sequence encoding the human Activin A protein sequenc…

R&D Systems Recombinant Human BMP-4 BMP-4 is a TGF-β superfamily ligand that is widely expressed from early embryogenesis through adulthood. It plays an important role in mesenchyme formation, epidermal determination, suppression of neural induction, the development of multiple organs, and tissue repair. Specifications and Use of R&D BMP-4R&D BMP-4 Source • A DNA sequence encoding the human BMP-4 mature chain (amino acid r…

R&D Recombinant Mouse Wnt-3a Wnt proteins are secreted glycoproteins that contain a conserved pattern of 23-24 cysteine residues. Wnts play critical roles in both carcinogenesis and embryonic development. Specifications and Use for R&D Wnt-3aSource of R&D Wnt-3a • A DNA sequence encoding the signal peptide from human CD33, Met 1 - Ala 16, joined with the mature mouse Wnt-3A, Ser 19 - Lys 352 (Accession # P27467; Roelink, H.…

R&D Systems Recombinant Human IL-4 Interleukin-4 (IL-4), also known as B cell-stimulatory factor-1, is a monomeric, approximately 13 kDa - 18 kDa Th2 cytokine that shows pleiotropic effects during immune responses. It is a glycosylated polypeptide that contains three intrachain disulfide bridges and adopts a bundled four α-helix structure. Specifications and Use of R&D Systems Recombinant Human IL-4Source • A DNA sequence en…