Antigen processing and presentation is the process by which protein antigen is ingested by an antigen-presenting cell (APC), partially digested into peptide fragments and then displayed on the ...

For analysis of the necessary complex antigen processing and transport processes in real time, a German team has developed a "cage" that is opened with light to release trapped antigens at a ...

Assays for hepatitis B surface antigen (HBsAg) are the most frequently used tests to detect HBV infection. Vaccination for HBV can produce transiently detectable levels of HBsAg in patients.