A-band Quick reference
Part of a muscle sarcomere that comprises several thick myosin filaments held between thinner actin filaments. It appears as a dark band when viewed under a microscope. ...
A-state Quick reference
A temporary state of anxiety evoked by a particular situation (see state anxiety).
A-trait Quick reference
An enduring personality factor indicating an individual's predisposition to experience anxiety under stress.
A-type channels Quick reference
Rapidly inactivating voltage-gated potassium channels (KCNA4), of the *shaker-related subfamily. They are activated by depolarization but only after a preceding hyperpolarization and are important for repetitive firing of cells at low frequencies....
AAA family Quick reference
A diverse superfamily (ATPases associated with various cellular activities) that have a characteristic AAA-domain. There are at least 300 known members in at least six families. Mutations in proteins of the AAA family cause a variety of human diseases including ...