Biology

Biology

A natural science concerned with the study of life or living matter in all its forms and phenomena, especially in relation to their origin, growth, reproduction, structure, behaviour and evolution.

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Biology > Immunology

fab

Biology; Immunology

Fragment of antibody containing one antigen-binding site; generated by cleavage of the antibody with the enzyme papain, which cuts at the hinge region N- terminally to the ...

factor B

Biology; Immunology

An alternative complement pathway component which combines with C3b and is cleaved by factor D to produce alternative pathway C3 convertase.

factor H

Biology; Immunology

A regulator of complement in the blood that unites with C3b and facilitates dissociation of alternative complement pathway C3 convertase, designated C3bBb, into C3b and Bb.

factor I

Biology; Immunology

A serine protease that splits the α chain of C3b to produce C3bi and the α chain of C4b to yield C4bi.

factor P (properdin)

Biology; Immunology

A key participant in the alternative pathway of complement activation that combines with C3b and stabilizes alternative pathway C3 convertase (C3bB) to produce C3bBbP.

farmer's lung

Biology; Immunology

Is a hypersensitivity disease caused by the interaction of IgG antibodies with large amounts of an inhaled allergen in the alveolar wall of the lung, causing alveolar wall ...

Fas

Biology; Immunology

A member of the TNF receptor family that is expressed on certain cells and makes them susceptible to killing by cells expressing Fas ligand. Binding of Fas ligand to Fas triggers ...