sequence

Thymocyte

...receptor . Unlike most genes, which have a stable sequence in each cell which expresses them, the T cell receptor is made up of a series of alternative gene fragments. In order to create a functional T cell receptor, the double negative thymocytes use a series of DNA-interacting enzymes to clip the DNA and...

Proteopathy

... destabilizing changes in the primary amino acid sequence of the protein, post-translational modifications (such as hyperphosphorylation ), changes in temperature or pH, an increase in production of a protein, or a decrease in its clearance. Advancing age frequently is a risk factor. In some proteopathi...

Nuclear medicine

... datasets the array of images may represent a time sequence (ie. cine or movie) often called a "dynamic" dataset, a cardiac gated time sequence, or a spatial sequence where the gamma-camera is moved relative to the patient. SPECT (single photon emission computed to...

Breath-holding spells

...l is made clinically. A good history including the sequence of events, lack of incontinence and no post ictal phase, help to make an accurate diagnosis. Some families are advised to tape the events to aid diagnosis. An electrocardiogram (ECG) may rule out cardiac arrhythmia as a cause. There is some evide...

Artificial induction of immunity

...evelopment of techniques in historical and logical sequence and points to detailed articles on each of the main topics. Contents 1 Variolation and smallpox 2 Vaccination 3 Germ theory 4 Toxoids 5 Adjuvants 6 Temporarily-induced immunity 7 References ...