scholarly journals Polymer length of teichuronic acid released from cell walls of Micrococcus luteus.

1990 ◽  
Vol 172 (9) ◽  
pp. 5154-5159 ◽  
Author(s):  
P J Wolters ◽  
K M Hildebrandt ◽  
J P Dickie ◽  
J S Anderson
Keyword(s):  
Cell Walls ◽  
Micrococcus Luteus ◽  
Teichuronic Acid

scholarly journals Teichuronic acid reducing terminal N-acetylglucosamine residue linked by phosphodiester to peptidoglycan of Micrococcus luteus.

1990 ◽  
Vol 172 (5) ◽  
pp. 2273-2279 ◽  
Author(s):  
G T Gassner ◽  
J P Dickie ◽  
D A Hamerski ◽  
J K Magnuson ◽  
J S Anderson
Keyword(s):  
Micrococcus Luteus ◽  
Teichuronic Acid

scholarly journals Selective extraction of polymers from cell walls of Gram-positive bacteria (Short Communication)

1973 ◽  
Vol 131 (3) ◽  
pp. 619-621 ◽  
Author(s):  
Jiri G. Pavlik ◽  
Howard J. Rogers
Keyword(s):  
Bacillus Licheniformis ◽  
Cell Walls ◽  
Short Communication ◽  
Selective Extraction ◽  
Gram Positive ◽  
Teichoic Acids ◽  
Gram Positive Bacteria ◽  
Teichuronic Acid

Brief heating of Bacillus Licheniformis cell walls at 100°C in aqueous buffers of pH3.0–4.0 removes some polymers but not others from the mucopeptides. For example, relatively undegraded teichuronic acid can be extracted at 100°C in 20min at pH3.0 whereas the teichoic acids are not removed. Similar specificity can be shown with walls from three other species of micro-organism.

scholarly journals The Cell Wall Teichuronic Acid Synthetase (TUAS) Is an Enzyme Complex Located in the Cytoplasmic Membrane ofMicrococcus luteus

2010 ◽  
Vol 2010 ◽  
pp. 1-8 ◽  
Author(s):  
Lingyi Lynn Deng ◽  
Alice A. Alexander ◽  
Sijin Lei ◽  
John S. Anderson
Keyword(s):  
Cell Wall ◽  
Outer Surface ◽  
Cytoplasmic Membrane ◽  
Micrococcus Luteus ◽  
Cell Envelope ◽  
Bacterial Membrane ◽  
Enzyme Complex ◽  
Hydrophobic Properties ◽  
Teichuronic Acid ◽  
Long Chain

The cell wall teichuronic acid (TUA) ofMicrococcus luteusis a long-chain polysaccharide composed of disaccharide repeating units[-4-β-D-ManNAcAp-(1→6)α-D-Glcp−1-]n, which is covalently anchored to the peptidoglycan on the inner cell wall and extended to the outer surface of the cell envelope. An enzyme complex responsible for the TUA chain biosynthesis was purified and characterized. The 440 kDa enzyme complex, named teichuronic acid synthetase (TUAS), is an octomer composed of two kinds of glycosyltransferases, Glucosyltransferase, and ManNAcA-transferase, which is capable of catalyzing the transfer of disaccharide glycosyl residues containing both glucose and theN-acetylmannosaminuronic acid residues. TUAS displays hydrophobic properties and is found primarily associated with the cytoplasmic membrane. The purified TUAS contains carotinoids and lipids. TUAS activity is diminished by phospholipase digestion. We propose that TUAS serves as a multitasking polysaccharide assembling station on the bacterial membrane.

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