Antibodies are gamma globulin proteins found in blood or other bodily fluids and are used by the immune system to neutralize foreign bodies such as viruses and bacteria.
Recommended Resources
New Synthetic Antibodies Are Much Better Than Natural Ones
Presents the historic overview of the discovery of synthetic antibodies, or agents which mimic the biological process which antibodies perform and how they attach to proteins on specific cells.
http://news.softpedia.com/news/New-Synthetic-Antibodies-Are-Much-Better-Than-Natural-Ones-53501.shtml
Synthetic Antibodies Prey on B Cells
Offers a concise discussion about the evolution of synthetic antibodies which target B cells and how they work. Additionally, there are links to the full text in PDF format and a link to ask for alerts when corrections are posted.
http://bloodjournal.hematologylibrary.org/content/108/9/2889.full
Synthetic Antibodies: A Dominant Role for Tyrosine in Antigen Recognition

Lays out data regarding antigen-binding fragments, the abstract for the paper as well as the full text and related resources.
http://www.pnas.org/content/101/34/12467.abstract
