Structure of the Repeating Unit in Peptidoglycan and the Manner in Which the Peptide and Glycan Units are Connected N-Acetylglucosamine (G) N-Acetylmuramic acid (M) CHOH CH2OH OH 1,4) B(14 1,4) NH NH C=0 C=o Lysozyme-sensitive CH3 HC-CHa bond Peptide bond H2C-CH- L-Alanine CH2-CH2-CH-COOH D-Glutamic acid NH2 HOOC- C- CH2-CH2- CH2-CH Meso-diaminopimelic acid HC-CH-COOH D-Alanine
Peptide and glycan units are connected in formation of the peptidoglycan sheet Paotce ne电ee
Peptide and glycan units are connected in formation of the peptidoglycan sheet
Teichoic Acids Gram-positive Bacteria frequently have acidic polysaccharides called teichoic acids attached to their cell wall.The term teichoic acids includes all wall,membrane,or capsular polymers containing glycerophosphate or ribitol phosphate residues.These polyalcohols are connected by phosphate esters and usually have other sugars and D-alanine attached
Gram-positive Bacteria frequently have acidic polysaccharides called teichoic acids attached to their cell wall. The term teichoic acids includes all wall, membrane, or capsular polymers containing glycerophosphate or ribitol phosphate residues. These polyalcohols are connected by phosphate esters and usually have other sugars and D-alanine attached. Teichoic Acids
Teichoic acids and lipoteichoic acids are arranged in the overall wall structure of gram-positive Bacteria. Lipoteichoic acid Teichoic acid Periplasmic soace
Teichoic acids and lipoteichoic acids are arranged in the overall wall structure of gram-positive Bacteria . Lipoteichoic acid Teichoic acid
Oulor Periplasmic space pectidaglycanl The Gram-negative cell wall is a thin layer attached to an outer membrane via lipoproteins.The outer membrane contains phospholipid on its inner surface and lipopolysaccharide (LPS)on its outer surface.The space between the outer membrane and the cytoplasmic membrane is called the periplasmic space.Teichoic acids do not occur in Gram-negative bacterial cell walls
The Gram-negative cell wall is a thin layer attached to an outer membrane via lipoproteins. The outer membrane contains phospholipid on its inner surface and lipopolysaccharide (LPS) on its outer surface. The space between the outer membrane and the cytoplasmic membrane is called the periplasmic space.Teichoic acids do not occur in Gram-negative bacterial cell walls