Skip to main content

BIOSYNTHESIS OF CELL WALL POLYSACCHARIDES

BIOSYNTHESIS OF CELL WALL POLYSACCHARIDES


  • Microorganisms synthesize Sugars and Polysaccharides.
  • The carbon atoms required to synthesize Glucose are derived from the intermediates produced during processes such as Glycolysis and the Krebs cycle and from lipids or amino acids.
  • After synthesizing Glucose, bacteria may assemble it into more complex polysaccharides, such as Glycogen.
  • For bacteria to build Glucose into glycogen, glucose units must be Phosphorylated and linked.  The product of Glucose phosphorylation is Glucose-6-phosphate. 
  • In order for bacteria to synthesize Glycogen, a molecule of ATP is added to Glucose 6-phosphate to form Adenosine diphosphoglucose (ADPG). Once ADPG is synthesized, it is linked with similar units to form Glycogen (Polysaccharide).
  • Using a nucleotide called Uridine triphosphate (UTP) as a source of energy and Glucose-6-phosphate, animals synthesize glycogen from Uridine diphosphoglucose (UDPG).
  • A compound related to UDPG, called UDP-N-acetylglucosamine (UDPNAc) is a key starting material in the biosynthesis of Peptidoglycan, the substance that forms bacterial cell walls. The UDPNAc is formed from Fructose 6-phosphate, and the reaction also uses UTP.


Biosynthesis of Cell wall polysaccharides

Comments

Post a Comment

Popular posts from this blog

Four Weeks International Online Certificate Course on “BIOANALYTICAL TECHNIQUES (Part I) – Microscopy, Chromatography and Centrifugation (Phase - II)”

ONLINE COURSE CONTENTS CHAPTER NUMBER TOPICS WEEK – 1 1 History of Microscopy 2 Parts of Microscope 3 Difference between Simple and Compound Microscope 4 Difference between Light and Electron Microscope 5 Bright Field Microscope 6 Dark Field Microscope 7 Polarizing Microscope 8 Fluorescent Microscope 9 Confocal Microscope 10 Phase Contrast Microscope 11 Differential Interference Contrast (DIC) Microscope 12 Electron Microscope 13 Difference between SEM and TEM 14 Scanned Probe Microscopy – Scanning Tunnelling Microscopy 15 Scanned Probe Microscopy – Atomic Force Microscopy WEEK – 2 16 A
Post a Comment
Read more

Four Weeks International Online Certificate Course on “BIOANALYTICAL TECHNIQUES (Part II) – Electrophoresis, Spectroscopy and Microbiology Lab Instruments (Phase - I)”

Four Weeks International Online Certificate Course on “BIOANALYTICAL TECHNIQUES (Part II) – Electrophoresis, Spectroscopy and Microbiology Lab Instruments (Phase - I)” ONLINE COURSE CONTENTS CHAPTER NUMBER TOPICS WEEK – 1 1 An Introduction to Electrophoresis 2 Forms and Types of Electrophoresis 3 Electrophoresis – Applications, Advantages and Limitations 4 Gel Electrophoresis 5 Agarose Gel Electrophoresis 6 Pulsed-field Gel Electrophoresis (PFGE) 7 SDS – PAGE 8 2-Dimensional (2D) Electrophoresis 9 Capillary Electrophoresis (CE) 10 Immunoelectrophoresis 11 Affinity Electrophoresis 12 Paper Electrophoresis 13 Cellulose Acetate Electrophoresis 14
1 comment
Read more

Four Weeks International Online Certificate Course on “MEDICALLY IMPORTANT BACTERIA” (Phase - II)

ONLINE COURSE CONTENTS CHAPTER NUMBER TOPICS WEEK – 1 1 An Introduction to Bacteria 2 Ultrastructure of Bacteria 3 Difference between Gram positive and Gram negative bacteria 4 Normal microbial flora of human body 5 Microbial Infections 6 Virulence factors of Bacteria 7 Difference between Exotoxin and Endotoxin 8 Epidemiology of Microbial infections 9 An Introduction to Antibiotics 10 Classification of Antibiotics 11 Antibiotic Resistance 12 Antibiotic Sensitivity Test WEEK – 2 13 Staphylococcus aureus   14 Streptococcus pyogenes 15 Streptococcus agalactiae 16 Streptococcus pneumon
Post a Comment
Read more