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The J chain is a glycoprotein of molecular weight 15 kDa. Its secondary structure remains undetermined but is believed to adopt either a single β-barrel or two-domain folded structure with standard immunoglobulin domains. [10] The J chain's primary structure is unusually acidic having a high content of negatively charged amino acids. [11]
Complementarity-determining regions (CDRs) are polypeptide segments of the variable chains in immunoglobulins (antibodies) and T cell receptors, generated by B-cells and T-cells respectively. CDRs are where these molecules bind to their specific antigen and their structure/sequence determines the binding activity of the respective antibody.
The common gamma chain partners with other proteins to direct blood-forming cells to form lymphocytes (a type of white blood cell). The receptor also directs the growth and maturation of lymphocyte subtypes: T cells, B cells, innate lymphoid cells, and natural killer cells. These cells kill viruses, make antibodies, and help regulate the entire ...
Tertiary structure refers to the locations of the atoms in three-dimensional space, taking into consideration geometrical and steric constraints. It is a higher order than the secondary structure, in which large-scale folding in a linear polymer occurs and the entire chain is folded into a specific 3-dimensional shape.
Eggs deliver protein, especially for breakfast. As egg prices rise, dietitians share foods with more protein than an egg, including beans, tofu and chicken.
SEOUL (Reuters) -Both engines of the Jeju Air plane that crashed last month contained duck remains, according to a preliminary report on Monday, with authorities still trying to determine what ...
WASHINGTON (Reuters) - -Alcoholic drinks should carry a label warning consumers about their cancer risks, the U.S. Surgeon General said in an advisory on Friday, noting that their consumption ...
Knowing the structure of a similar homologous sequence (for example a member of the same protein family) allows highly accurate prediction of the tertiary structure by homology modeling. If the full-length protein sequence is available, it is possible to estimate its general biophysical properties , such as its isoelectric point .