Diaminopimelic acid
Encyclopedia
Diaminopimelic acid is an amino acid
, representing an epsilon-carboxy derivative of lysine
.
DAP is a characteristic of certain cell wall
s of some bacteria. When provided, they exhibit normal growth. When in deficiency, they still grow but with the inability to make new cell wall proteoglycan.
This is also the attachment point for Braun's lipoprotein
.
Amino acid
Amino acids are molecules containing an amine group, a carboxylic acid group and a side-chain that varies between different amino acids. The key elements of an amino acid are carbon, hydrogen, oxygen, and nitrogen...
, representing an epsilon-carboxy derivative of lysine
Lysine
Lysine is an α-amino acid with the chemical formula HO2CCH4NH2. It is an essential amino acid, which means that the human body cannot synthesize it. Its codons are AAA and AAG....
.
DAP is a characteristic of certain cell wall
Cell wall
The cell wall is the tough, usually flexible but sometimes fairly rigid layer that surrounds some types of cells. It is located outside the cell membrane and provides these cells with structural support and protection, and also acts as a filtering mechanism. A major function of the cell wall is to...
s of some bacteria. When provided, they exhibit normal growth. When in deficiency, they still grow but with the inability to make new cell wall proteoglycan.
This is also the attachment point for Braun's lipoprotein
Braun's lipoprotein
Braun's lipoprotein , found in gram-negative cell walls, is one of the most abundant membrane proteins; its molecular weight is about 7.2 kDa...
.