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

hinge region

Biology; Immunology

A flexible, open segment of an antibody molecule that allows bending of the molecule. The hinge region is located between Fab and Fc and is susceptible to enzymatic cleavage.

histamine

Biology; Immunology

A vasoactive amine stored in mast cell granules which is released by antigen binding to IgE molecules on mast cells, causing dilation of local blood vessels and smooth muscle ...

histocompatibility

Biology; Immunology

Literally, the ability of tissues to be compatible; in immunology, it means identity in all transplantation antigens. These antigens, in turn, are collectively referred to as ...

Hodgkins's disease

Biology; Immunology

is a malignant disease in which antigen-presenting cells that resemble dendritic cells seem to be the transformed cell type. Hodgkin's lymphoma is a form of Hodgkin's disease in ...

homodimer

Biology; Immunology

A protein comprised of dual peptide chains that are identical.

human immunodeficiency virus (HIV)

Biology; Immunology

Retrovirus that infects human CD4 + cells and causes AIDS.

Human Leukocyte Antigen (HLA)

Biology; Immunology

The human major histocompatibility complex; contains the genes coding for the polymorphic MHC class I and II class molecules and many other important genes.