membrane switch
71Microtubule — Space filling model of a microtubule segment derived from cryo electron microscopy. The protofilaments are seen running along the axis of the segment. The microtubule (+) end is towards the top of the image.[1] Microtubules are a component of the …
72Long-term potentiation — (LTP) is a persistent increase in synaptic strength following high frequency stimulation of a chemical synapse. Studies of LTP are often carried out in slices of the hippocampus, an important organ for learning and memory. In such studies,… …
73AMP-activated protein kinase — 5 AMP activated protein kinase or AMPK consists of three proteins (subunits) that together make a functional enzyme, conserved from yeast to humans, that plays a role in cellular energy homeostasis. It is expressed in a number of tissues,… …
74Trypanosoma brucei — Taxobox color = khaki image width = 240px image caption = Trypanosoma brucei brucei TREU667 (Bloodstream form, phase contrast picture. Black bar indicates 10 µm.) name = Trypanosoma brucei regnum = Protista phylum = Euglenozoa classis =… …
75DsrA RNA — Predicted secondary structure and sequence conservation of DsrA Identifiers Symbol DsrA Rfam …
76algae — algal, adj. /al jee/, n.pl., sing. alga / geuh/. any of numerous groups of chlorophyll containing, mainly aquatic eukaryotic organisms ranging from microscopic single celled forms to multicellular forms 100 ft. (30 m) or more long, distinguished… …
77GTPase — GTPases (singular GTPase) are a large family of hydrolase enzymes that can bind and hydrolyze guanosine triphosphate (GTP). The GTP binding and hydrolysis takes place in the highly conserved G domain common to all GTPases. They help GTP binding… …
78Positive feedback — Alarm or panic can spread by positive feedback among a herd of animals to cause a stampede. Positive feedback is energy taken from the output of a system and reapplied to the input, which is phase congruent with the input signal. A system… …
79Kinesin — Animation of kinesin walking on a microtubule The kinesin dimer attaches to, and mo …
80Coiled coil — For the coiled coil shape in general, see Coil. Figure 1: The classic example of a coiled coil is the GCN4 leucine zipper (PDB accession code 1zik), which is a parallel, left handed homodimer. However, many other types of coiled coil exist. A… …
