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SARS-CoV-2 (Spike Protein) Peptide Pool

Catalog Number: (MSPP-100-0676)

Supplier: STEMCELL Technologies

Description: The SARS-CoV-2 (spike protein) peptide pool is provided as two lyophilized mixtures (subpools) from the SARS-CoV-2 spike protein. Each subpool contains 158 peptides, for a total of 316 peptides. The virus attaches to the cell membrane of the host through the interaction between spike protein and angiotensin-converting enzyme 2 (ACE2) receptor, and the spike protein plays a critical role in viral entry. The subpools consist of 15-mer peptides with 11-amino-acid overlaps that cover amino acids 1 to 1273 on the spike protein.

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Human Recombinant Autotaxin, His tag

Catalog Number: (MSPP-100-1324)

Supplier: STEMCELL Technologies

Description: Use autotaxin (ENPP2) to catalyze the production of lysophosphatidic acid (LPA), a potent mitogen that can evoke growth factor-like responses (Moolenaar and Corven), from lysophospholipids in extracellular fluids. Autotaxin is a secreted glycoprotein that belongs to the ectonucleotide pyrophosphatase/phosphodiesterase (ENPP) family, containing two N-terminal somatomedin B (SMB)-like domains, a central phosphodiesterase (PDE) domain with an active catalytic site, and a C-terminal nuclease-like (NUC) domain (Nishimasu et al.). Dysregulation of autotaxin and LPA receptors is implicated in cancer (Tigyi et al.), fibrosis (Ninou et al.), neurological disorders (Roy et al.), and other inflammation-associated conditions. Both Autotaxin and LPA are overexpressed in many cancers and can promote cell proliferation, migration, and resistance to apoptotic death (Tigyi et al.). Autotaxin was also found to catalyze the production of cyclic phosphatidic acid (CPA), an analog of LPA, which has anti-mitogenic and inhibitory effects on tumor cell invasion and metastasis (Fujiwara). This protein contains a His-residue tag at the amino end of the polypeptide chain. For consistency and reproducibility across your applications, Autotaxin from STEMCELL comes lyophilized with ≥ 85% purity, and endotoxin levels are verified to be ≤1.0 EU/μg protein.

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Human Recombinant DKK-1

Supplier: STEMCELL Technologies

Description: Dickkopf-related protein 1 (DKK-1) is a member of the Dickkopf family and is a secreted protein that inhibits the canonical WNT pathway by competitive binding to low-density lipoprotein receptors (LRP)-5 and 6 with high affinity, thereby decreasing β-catenin protein stability (Niehrs). DKK-1 regulates embryonic development and contains two conserved cysteine-rich domains separated by a linker region and an N-terminal signal peptide (Krupnik et al.; Lieven et al.). A family of human DKK-related genes composed of DKK-1, DKK-2, DKK-3, and DKK-4 have been characterized together with a unique DKK-3 related protein termed Soggy (Krupnik et al.). DKK-1 has been shown to support the generation of myeloid-derived suppressor cells (MDSCs) and thus is a negative regulator of antitumor immune responses (D’Amico et al.). DKK-1 from thrombocytes is an important regulator of leukocyte infiltration and induces Th2 cell polarization and potentiates Th2 cell cytokine expression (Chae et al.). DKK-1 has also been shown to drive cardiac and retinal differentiation from induced pluripotent stem (iPS) cells (Lian et al.). Protein contains a His-residue tag at the carboxyl end of the polypeptide chain.

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CD34+ Progenitor Reprogramming Kit, STEMCELL Technologies

Catalog Number: (MSPP-05925)

Supplier: STEMCELL Technologies

Description: Integrated workflow containing tools to isolate and expand CD34+ progenitor cells from peripheral blood and their subsequent reprogramming to iPS cells.

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