In the form of proteins, amino acids comprise the second-largest component (water is the largest) of human muscles, cells and other tissues. Outside proteins, amino acids perform critical roles in processes such as neurotransmitter transport and biosynthesis.n biochemistry, amino acids having both the amine and the carboxylic acid groups attached to the first (alpha-) carbon atom have particular importance.
Ad lib redirects here. For other uses, see Ad lib (disambiguation). Ad libitum (/Ã¦dËlÉªbáµ»tÉm/) is Latin for at one's pleasure; it is often shortened to ad lib (as an adjective or adverb) or ad-lib (as a verb or noun).
Unsub stands for UNknown SUBject. It is used to refer to a suspect in a criminal investigation. The subject is usually suspected of a specific crime; serial killing, rampage killing, arson, etc. The term unsub is used by the BAU team as a code-name for the criminals they investigate on Criminal Minds. This process is repeated with the BAU team featured in Suspect Behavior and the International Response team featured in Beyond Borders.