Apamin Apamin Apamin is an 18 amino acid peptide neurotoxin found in apitoxin (bee venom). Dry bee venom consists of 2–3% of apamin. Apamin selectively blocks SK channels, a type of Ca-activated K channel expressed in the central nervous system. Toxicity is caused by only a few amino acids, these are cysteine, lysine, arginine, arginine and histidine. These amino acids are involved in the binding of apamin to the Ca-activated K channel. Due to its specificity for SK channels, apamin is used as a drug in biomedical research to study the electrical properties of SK channels and their role in the
Sort (Unix) name the output file because it was used to sort a file in place. In Version 5, Thompson invented "-" to represent standard input. $ cat "phonebook" The codice_1 option makes the program sort according to numerical value. The command produces output that starts with a number, the file size, so its output can be piped to to produce a list of files sorted by (ascending) file size: Use the codice_2 option to sort on a certain column. For example, use "codice_3" to sort on the second column). In old versions of sort, the codice_4 option made the program sort