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16 relations: Alpha helix, Antibody, Antigen, Biological membrane, Biomolecular structure, Effector (biology), Homology (biology), Molecular binding, Native state, Opsonin, Phagocytosis, Protein, Protein A, Protein domain, Secretion, Virulence factor.
Alpha helix
The alpha helix (α-helix) is a common motif in the secondary structure of proteins and is a righthand-spiral conformation (i.e. helix) in which every backbone N−H group donates a hydrogen bond to the backbone C.
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Antibody
An antibody (Ab), also known as an immunoglobulin (Ig), is a large, Y-shaped protein produced mainly by plasma cells that is used by the immune system to neutralize pathogens such as pathogenic bacteria and viruses.
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Antigen
In immunology, an antigen is a molecule capable of inducing an immune response (to produce an antibody) in the host organism.
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Biological membrane
A biological membrane or biomembrane is an enclosing or separating membrane that acts as a selectively permeable barrier within living things.
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Biomolecular structure
Biomolecular structure is the intricate folded, three-dimensional shape that is formed by a molecule of protein, DNA, or RNA, and that is important to its function.
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Effector (biology)
In biochemistry, an effector molecule is usually a small molecule that selectively binds to a protein and regulates its biological activity.
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Homology (biology)
In biology, homology is the existence of shared ancestry between a pair of structures, or genes, in different taxa.
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Molecular binding
Molecular binding is an attractive interaction between two molecules that results in a stable association in which the molecules are in close proximity to each other.
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Native state
In biochemistry, the native state of a protein or nucleic acid is its properly folded and/or assembled form, which is operative and functional.
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Opsonin
An opsonin (from the Greek opsōneîn, to prepare for eating) is any molecule that enhances phagocytosis by marking an antigen for an immune response or marking dead cells for recycling (i.e., causes the phagocyte to "relish" the marked cell).
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Phagocytosis
In cell biology, phagocytosis is the process by which a cell—often a phagocyte or a protist—engulfs a solid particle to form an internal compartment known as a phagosome.
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Protein
Proteins are large biomolecules, or macromolecules, consisting of one or more long chains of amino acid residues.
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Protein A
Protein A is a 42 kDa surface protein originally found in the cell wall of the bacteria Staphylococcus aureus.
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Protein domain
A protein domain is a conserved part of a given protein sequence and (tertiary) structure that can evolve, function, and exist independently of the rest of the protein chain.
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Secretion
Secretion is the movement of material from one point to another, e.g. secreted chemical substance from a cell or gland.
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Virulence factor
Virulence factors are molecules produced by bacteria, viruses, fungi, and protozoa that add to their effectiveness and enable them to achieve the following.
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