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Diaminopimelic acid (DAP) is an amino acid, representing an epsilon-carboxy derivative of lysine. meso -α,ε-Diaminopimelic acid is the last intermediate in the biosynthesis of lysine and undergoes decarboxylation by diaminopimelate decarboxylase to give the final product.
Diammonium phosphate (DAP; IUPAC name diammonium hydrogen phosphate; chemical formula (NH 4) 2 (HPO 4)) is one of a series of water-soluble ammonium phosphate salts that can be produced when ammonia reacts with phosphoric acid. Solid diammonium phosphate shows a dissociation pressure of ammonia as given by the following expression and equation: [2]
Advanced Placement (AP) Biology (also known as AP Bio) is an Advanced Placement biology course and exam offered by the College Board in the United States. For the 2012–2013 school year, the College Board unveiled a new curriculum with a greater focus on "scientific practices".
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The last of the non-avian dinosaurs died 66 million years ago in the course of the Cretaceous–Paleogene extinction event, whereas the earliest members of the genus Homo (humans) evolved between 2.3 and 2.4 million years ago. This places a 63-million-year expanse of time between the last non-avian dinosaurs and the earliest humans.
DAP (gene), human gene that encodes death-associated proteins, which mediate programmed cell death Diamidophosphate, phosphorylating compound; Diaminopimelic acid, amino acid derivative of lysine
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2,6-DAP was used to treat leukemia since as early as 1951. [13] It is known to arrest progression of cell cycle in mouse leukemia cells by 1989. [14] Cancer cells are known to become resistant to DAP by losing their adenine phosphoribosyltransferase (APRT) function, [15] a process shared with E. coli. [16]