Biology/peptoglycan containing Murien
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Question
My Bio lab instructor said that peptoglycan is made of murien and 2 disaccharides. The queston I have is what is murien?
Hi Jason: Thanks for your question.
Peptidoglycan is the outer layer of bacteria. It is composed of sugars and proteins lined up in a lattice. The sugars are N-acetylglucosamine and N-acetylmuramic acid. The amino acids can be alanine, glycine and/or glutamine.
I think you misheard your lab instructor. Peptidoglycan and murein are the same thing.
Here's a link:
http://en.wikipedia.org/wiki/Peptidoglycan
Hope this helps.
FM Rollwagen, PhD
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Florence M Rollwagen
Expertise
I can answer questions in biology, microbiology and immunology on the undergraduate or graduate level. I can also address medical and health concerns regarding alternative medicine, autoimmune diseases (lupus, MS) liver disease and intestinal problems.
Experience
I have over 20 years experience in research and teaching at the medical/graduate level, and 5 years teaching college biology and microbiology. My expertise is in microbiology and immunology, specifically the biology of cytokines and soluble immune response modifiers. I also carried out original research in blood substitutes and shock/trauma.
Organizations
American Association of Immunologists (AAI)
American Association for the Advancement of Science (AAAS)
Publications
Journal of Experimental Medicine, Journal of Immunology, Cytokine, Shock, Experimental Hematology
Education/Credentials
BS biology 1966
MS biology 1968
PhD immunology 1979
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