B cells

B Cells
BCRs bind soluble antigens (like diphtheria toxoid, the protein introduced into your body in the DTP vaccine).
The bound antigen molecules are engulfed into the B cell by receptor-mediated endocytosis.

B cells are lymphocytes that play a large role in the humoral immune response as opposed to the cell-mediated immune response that is governed by T cells. The principal function of B cells is to make antibodies against soluble antigens.

B cells Type of lymphocyte responsible for antibody-mediated immunity; mature in the bone marrow and circulate in the circulatory and lymph systems where they transform into antibody-producing plasma cells when exposed to antigens.

B Cells
B cells divide, forming plasma cells and B memory cells. Plasma cells make and release between 2000 and 20,000 antibody molecules per second into the blood for the next four or five days.

B cells: A major family of small lymphocytes that are responsible for antigen-specific humoral immunity as part of the adaptive immunity. Their antigen receptors are surface immunoglobulins (antibodies).

Memory B cells are B cells that although activated by the immune system, they are stored inside the circulatory system for later use, for long periods of time, possibly a whole lifetime.

B cells, cytotoxic T cells
The Biology Project > Immunology > Immunology Problem Set
The Biology Project
The University of Arizona
Friday, November 10, 2000
Contact the Biology Project ...

B cells divide and form memory cells and antibody-secreting plasma cells: ...

B lymphocytes (B cells)
- A type of cell that produces antibodies.
Bacillus thuringiensis ...

A derivative of B cells that secretes antibodies.
plasma membrane
[Gk. plasma, form or mold + L. membrana, skin, parchment] ...

Construction of large-insert libraries in bacterial hosts, such as those using PAC/BAC vectors and DH10B cells, has been limited by the inefficient transformation of Escherichia coli with large DNA molecules by electroporation.

The immune system contains white blood cells called T and B cells which make and secrete antibodies (proteins) to fight foreign molecules (including allergens), cells, and viruses. These foreign molecules, etc., are referred to as antigens.

Chemical signals from helper T cells stimulate the production of B cells specific to an infecting pathogen, and then stimulate the B cells to differentiate into plasma cells.

There are two main types lymphocytes: T cells and B cells. B cells produce antibody molecules that can latch on and destroy invading viruses or bacteria.

The carbohydrate chain is attached to a membrane protein or lipid. Blood type B cells have have a different carbohydrate chain. Type AB cells have both A and B chains.

antibody Immunoglobulin protein, produced by B cells (or plasma cells derived from B cells), that binds with a specific antigen.
antibody titer Measure of the amount of antibody present, usually given in units per milliliter of serum.

antigen - a molecule which reacts with preformed antibody at the specific receptors on T and B cells. Antigens are the ligands that react with the products of an immune response ...

Monoclonal antibodies. Immunoglobulin molecules of single- epitope specificity that are secreted by a clone of B cells.
Monoculture. The agricultural practice of cultivating crops consisting of genetically similar organisms.

Immunoreceptor tyrosine-based activation motif (ITAM) The intracellular region of Ig-α and Ig-β membrane proteins of immature B cells; upon antigen binding to the membrane-bound antibodies of the B cell, the ITAM regions of Ig-α ...

Immunoglobulin molecules of single- epitope specificity that are secreted by a clone of B cells. Monoculture. The agricultural practice of cultivating crops consisting of genetically similar organisms. Monogenic.

See also: Cells, B cell, Cell, Human, Blood