Search results for: 'mutant'

Emerging Therapeutic Approaches Against RAS Cancer Mutations Introduction RAS (rat sarcoma virus) proteins are small GTPases involved in signal transduction as part of the RAS/MAPK (mitogen-activated protein kinase) pathway and are involved in cell proliferation and differentiation. There are three human RAS genes: KRAS (Kristen rat sarcoma virus), HRAS (Harvey rat sarcoma virus) and NRAS (neuroblastoma rat sarcoma virus). The KRAS gene encodes two isoforms, KRAS-4B and KRAS-4A, but due t...

KRAS Screening & Profiling Services KRAS is an important protein in the RAS/MAPK signaling pathway that transmits signals from activated cell surface receptors leading to cell proliferation and survival. KRAS function is controlled by cycling through an inactive, GDP-bound state and an active, GTP-bound state. Activation of KRAS occurs when it binds to Guanine Nucleotide Exchange Factor (GEF) proteins, including SOS, which initiate the exchange of GDP for ...

SARS-CoV-2 Variants: Evading the Immune System The COVID-19 pandemic, caused by the novel SARS-CoV-2 coronavirus , has ravaged the globe, infecting over 145 million people and causing over 3 million deaths as of the time of this article. Ending the pandemic will require a combination of effective interventions, including therapeutics, diagnostics, and vaccines.  Several monoclonal antibody therapeutics have received emergency use authorization, and a number of vaccines have been devel...

SARS-CoV-2 Coronavirus Variants The COVID-19 pandemic, caused by the novel  SARS-CoV-2 coronavirus , has ravaged the globe, infecting over 450 million people and causing over 6 million deaths as of early 2022. The recent emergence of new SARS-CoV-2 variants is a severe concern, especially omicron and delta variants, as many of these mutations occur within the Spike protein and appear to increase transmissibility and infectivity. The graphics belo...

Targeted Protein Degradation Approaches and Applications Introduction Traditional approaches to regulate protein activity have relied on direct protein interactions by using inhibitors or ligands. However, these target only about 10% of the known 4000 disease-linked proteins, with many being considered “undruggable” due to their quaternary structure. In recent years new strategies to target “undruggable” proteins have been developed, harnessing the power of the cells’ own protei...

Neuroscience Neuroscience research is making strides towards solutions for CNS-related disorders. By exploring the structure, function, and development of the central nervous system (CNS), neuroscience provides insights into the fundamental mechanisms underlying how our brains function. This knowledge is essential for advancing our comprehension of neurological disorders, mental health conditions, brain malignancies, and brain-related inj...

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Lentiviruses Lentiviral transduction is a powerful tool for introducing genes into cells and is used extensively for cellular engineering. It has recently made its way to the clinic with ex-vivo cell therapy applications. Lentiviruses (LV) have also been used extensively for the modeling of SARS-CoV-2 viral infection of human cells. Lentiviral transduction is a powerful tool for introducing genes into cells and is used extensively for cellular engineering...

Mechanism of JAK-STAT Signaling in Cancer Cell Signaling Pathways Understanding cell to cell communication through cytokines and other secreted factors is at the center of daily life for countless pharmaceutical researchers.  This is because cytokine-based communication is central to normal development and is often a dysfunctional step in cancer and autoimmune diseases ( 1, 2 ).  It is also of increasing importance because cytokine release syndrome is a leading caus...

Unique and Featured Products Targeted Solutions for the Development of TCR-based Adoptive Cell Therapy See the Products ...

Bioactive Proteins & Enzymes BPS Bioscience specializes in manufacturing bioactive enzymes and protein complexes, offering over 2000 protein products critical for drug discovery. We feature a large selection of epigenetic and metabolic enzymes, kinases and other cell signaling proteins, as well as cancer-related proteins and their mutants, including KRAS, PARP proteins, and immune checkpoint molecules.  Contact us to learn how our products and services can help you reach your resea...

TR-FRET Assays Simplify and Accelerate Drug Discovery Introduction Time-Resolved Fluorescence Resonance Energy Transfer (TR-FRET) is a powerful technique commonly used to analyze the binding of two interacting molecules. Since most biological responses involve an interaction between at least two partners, TR-FRET is well suited to study a wide range of events, including many that characterize cellular signaling pathways. Possible applications are limitless: interaction ...

CRISPR-Based Synergistic Activation Mediator (SAM) Introduction Cas9 ( Streptococcus pyogenes CRISPR-associated protein 9) is a sequence-specific prokaryotic endonuclease that is recruited to the DNA by a single guide RNA (sgRNA) and introduces a double stranded break into the DNA. This double stranded break is usually repaired through Non-Homologous End Joining (NHEJ) in mammalian cells (1) . The target DNA sequence requires only 23 bp (base pairs) in length and sho...

Protein Frequently Asked Questions FAQ Topic: -Any- General Questions KRAS FAQ Search: How do I thaw recombinant proteins? Thaw...

Structure and Function of the Claudin Family Introduction Claudins (encoded by the multi-gene family CLDN) are tetraspan membrane proteins found in all epithelial and endothelial cells. They serve as crucial structural components of tight junction strands, where the membranes of two adjacent cells connect to form a barrier by self-polymerization and transcellular interactions at the apical-lateral membrane of epithelia. The tight junctions prevent molecules from passing bet...

Lentiviruses for SARS-CoV-2 Research To understand the mechanism of SARS-CoV-2 cell entry, it is essential to study how Spike proteins interact with the ACE2 receptor. However, such studies are hampered by the danger of producing and manipulating live coronavirus. A safer alternative to using live coronavirus is to use recombinant lentivirus pseudotyped with the coronavirus S protein. The Spike pseudotyped lentivirus includes a luciferase reporter, allowing the monitoring of viral entry into...

The Promise of NK Cell Therapeutics Introduction NK cells are the first line of defense against cancer and have been in the spotlight as a cancer therapy in the last decade. Their advantages versus T cells, such as their safety profile and not requiring MHC (Major Histocompatibility Complex)-antigen stimulation to become cytotoxic, have made NK cells attractive. However, as with T cells, the TME (tumor microenvironment) can suppress their activity, and infiltration into solid tumors is s...

Citations   This page contains a list of scientific journal articles that have cited BPS products and services since 2013. We would like to congratulate all our loyal customers on their contributions to the scientific community. Our customers are truly amazing and dedicated scientists and this is evidenced by the outstanding research they are doing.  Search By Product Name or Catalog Number Name Title 10X HAT Assay Buffer (50095...

Frequently Asked Questions BPS Bioscience is here to answer your questions and provide project guidance. On the following pages, we outline some of the most frequently asked questions separated by product type. If your question is not answered through these resources, please contact us today and we are happy to assist.  Proteins Cell Lines Assay Kits ...