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  2. Major prion protein - Wikipedia

    en.wikipedia.org/wiki/Major_prion_protein

    Murine PrP has glycosylation sites as Asn180 and Asn196. A disulfide bond exists between Cys179 of the second helix and Cys214 of the third helix (human PrP C numbering). [citation needed] PrP messenger RNA contains a pseudoknot structure (prion pseudoknot), which is thought to be involved in regulation of PrP protein translation. [15]

  3. Prion - Wikipedia

    en.wikipedia.org/wiki/Prion

    A prion / ˈ p r iː ɒ n / ⓘ is a misfolded protein that induces misfolding in normal variants of the same protein, leading to cellular death.Prions are responsible for prion diseases, known as transmissible spongiform encephalopathy (TSEs), which are fatal and transmissible neurodegenerative diseases affecting both humans and animals.

  4. PRP - Wikipedia

    en.wikipedia.org/wiki/PRP

    Major prion protein, encoded by the PrP gene; Panretinal photocoagulation, a treatment for proliferative diabetic retinopathy; Penicillin-resistant pneumococci, a Streptococcus species resistant to antibiotics; Pityriasis rubra pilaris, a rare skin disorder; Platelet-rich plasma; Progressive rubella panencephalitis, a viral neurological disorder

  5. Pathogen-associated molecular pattern - Wikipedia

    en.wikipedia.org/wiki/Pathogen-associated...

    [11] [12] Microbes have two main strategies in which they try to avoid the immune system, either by masking lipid A or directing their LPS towards an immunomodulatory receptor. [11] Peptidoglycan (PG) is also found within the membrane walls of gram-negative bacteria [13] and is recognized by TLR2, which is usually in a heterodimer of with TLR1 ...

  6. Microfold cell - Wikipedia

    en.wikipedia.org/wiki/Microfold_cell

    Cellular prion protein (PrP) is another example of a cell surface receptor on M cells. [2] M cells lack microvilli but, like other epithelial cells, they are characterized by strong cell junctions. This provides a physical barrier that constitutes an important line of defense between the gut contents and the immune system of the host.

  7. Biomolecule - Wikipedia

    en.wikipedia.org/wiki/Biomolecule

    Modified amino acids are sometimes observed in proteins; this is usually the result of enzymatic modification after translation (protein synthesis). For example, phosphorylation of serine by kinases and dephosphorylation by phosphatases is an important control mechanism in the cell cycle .

  8. Pattern recognition receptor - Wikipedia

    en.wikipedia.org/wiki/Pattern_recognition_receptor

    Some of these proteins recognize endogenous or microbial molecules or stress responses and form oligomers that, in animals, activate inflammatory caspases (e.g. caspase 1) causing cleavage and activation of important inflammatory cytokines such as IL-1, and/or activate the NF-κB signaling pathway to induce production of inflammatory molecules.

  9. Protein - Wikipedia

    en.wikipedia.org/wiki/Protein

    The words protein, polypeptide, and peptide are a little ambiguous and can overlap in meaning. Protein is generally used to refer to the complete biological molecule in a stable conformation, whereas peptide is generally reserved for a short amino acid oligomers often lacking a stable 3D structure. But the boundary between the two is not well ...