Podcast
Questions and Answers
What is the main component of bacterial peptidoglycans?
What is the main component of bacterial peptidoglycans?
- Polymeric chains of amino sugars (correct)
- Oligopeptide chains
- UDP-N-acetyl muramic acid
- N-acetyl muramyl pentapeptide
Which process involves the formation of a huge three-dimensional structure in bacterial peptidoglycans?
Which process involves the formation of a huge three-dimensional structure in bacterial peptidoglycans?
- Cross linking of individual peptidoglycan strands (correct)
- Synthesis of N-acetyl muramyl pentapeptide
- Formation of the polysaccharide chain
- Addition of PEP and reduction of the pyruvyl group
What is the first step in the biosynthesis of peptidoglycan involving S. aureus?
What is the first step in the biosynthesis of peptidoglycan involving S. aureus?
- Cross linking of individual peptidoglycan strands
- Formation of the polysaccharide chain
- Addition of PEP and reduction of the pyruvyl group
- Synthesis of N-acetyl muramyl pentapeptide (correct)
How is UDP-N-acetyl muramic acid synthesized from UDP-N-acetyl glucosamine?
How is UDP-N-acetyl muramic acid synthesized from UDP-N-acetyl glucosamine?
Which process in peptidoglycan synthesis involves the addition of one residue at a time without mRNA templates and ribosomes?
Which process in peptidoglycan synthesis involves the addition of one residue at a time without mRNA templates and ribosomes?
What provides specificity in the synthesis of N-acetyl muramyl pentapeptide?
What provides specificity in the synthesis of N-acetyl muramyl pentapeptide?
What are the three classes of N-linked glycoproteins mentioned in the text?
What are the three classes of N-linked glycoproteins mentioned in the text?
Which class of N-linked glycoproteins contains elements of both high mannose and complex chains?
Which class of N-linked glycoproteins contains elements of both high mannose and complex chains?
What type of sugars are found in the complex oligosaccharides of N-linked glycoproteins?
What type of sugars are found in the complex oligosaccharides of N-linked glycoproteins?
What role do rigid cell walls play in bacteria?
What role do rigid cell walls play in bacteria?
Which component of bacterial cell walls gives bacteria their characteristic shapes?
Which component of bacterial cell walls gives bacteria their characteristic shapes?
What defines a hybrid oligosaccharide in N-linked glycoproteins?
What defines a hybrid oligosaccharide in N-linked glycoproteins?
What is the major difference in the cell wall structure between Gram positive and Gram negative bacteria?
What is the major difference in the cell wall structure between Gram positive and Gram negative bacteria?
Which type of linkage connects the N-acetyl glucosamine and N-acetyl muramic acid in the bacterial cell wall polysaccharide chains?
Which type of linkage connects the N-acetyl glucosamine and N-acetyl muramic acid in the bacterial cell wall polysaccharide chains?
How is the tetrapeptide attached to the lactic acid moiety of N-acetyl muramic acid in the bacterial cell wall structure?
How is the tetrapeptide attached to the lactic acid moiety of N-acetyl muramic acid in the bacterial cell wall structure?
Which amino acids make up the tetrapeptide that is attached to the lactic acid moiety of N-acetyl muramic acid?
Which amino acids make up the tetrapeptide that is attached to the lactic acid moiety of N-acetyl muramic acid?
How are adjacent polysaccharide chains linked together in the bacterial cell wall structure?
How are adjacent polysaccharide chains linked together in the bacterial cell wall structure?
Which group is the glycine tetrapeptide attached to in the bacterial cell wall structure?
Which group is the glycine tetrapeptide attached to in the bacterial cell wall structure?
Flashcards
Bacterial peptidoglycan main component
Bacterial peptidoglycan main component
Polymeric chains of amino sugars
Peptidoglycan cross-linking
Peptidoglycan cross-linking
Formation of a large 3D structure in bacterial peptidoglycans.
S. aureus peptidoglycan synthesis first step
S. aureus peptidoglycan synthesis first step
Synthesis of N-acetyl muramyl pentapeptide.
UDP-N-acetyl muramic acid synthesis
UDP-N-acetyl muramic acid synthesis
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Peptidoglycan peptide chain building
Peptidoglycan peptide chain building
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N-acetyl muramyl pentapeptide specificity
N-acetyl muramyl pentapeptide specificity
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N-linked glycoprotein classes
N-linked glycoprotein classes
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Hybrid oligosaccharide
Hybrid oligosaccharide
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Complex oligosaccharide sugars
Complex oligosaccharide sugars
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Rigid cell wall bacterial role
Rigid cell wall bacterial role
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Bacterial shape determinant
Bacterial shape determinant
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Hybrid oligosaccharide definition
Hybrid oligosaccharide definition
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Gram-positive vs. Gram-negative cell wall
Gram-positive vs. Gram-negative cell wall
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N-acetyl glucosamine-N-acetyl muramic acid linkage
N-acetyl glucosamine-N-acetyl muramic acid linkage
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Tetrapeptide attachment to N-acetyl muramic acid
Tetrapeptide attachment to N-acetyl muramic acid
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Tetrapeptide amino acids
Tetrapeptide amino acids
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Adjacent polysaccharide chain linkage
Adjacent polysaccharide chain linkage
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Glycine tetrapeptide attachment point
Glycine tetrapeptide attachment point
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