Protein Structure

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  • Created by: jessica
  • Created on: 15-01-13 21:53
What are proteins made from?
Amino acids
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What are the properties of an amino acid?
Chiral, exist as 2 enantiomers and only L amino acids are found in proteins
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How are amino acids different?
Have different R groups.
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How do amino aicds bind together?
Via peptide bonds in a condensation reaction
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What is the primary structure of a protein?
The amino acid sequence
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What is the secondary structure of a protein?
The folding into helices and strands
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What is the tertiary structure of a protein?
Further folding of the protein
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What is the quarternary structure of a protein?
Only formed when there is more than one polypeptide chain is present
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What forms does the beta sheet take on?
anitparallel and parallel
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Name parts of the tertiary structure
parallel alpha beta barrel, dinucleotide binding domain,
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What are fibrous proteins used for?
framework, mechanical functions
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What are the three classes of fibrous proteins?
silks, keratins and collagen
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What are silks made from?
glycine and alanine, occasionaly with serine
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What form does keratin take on?
Alpha helices, which are right handed.
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What form does collagen take on?
A left handed collagen helix
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Where is collagen found?
in tendons, skin and bone
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Other cards in this set

Card 2

Front

What are the properties of an amino acid?

Back

Chiral, exist as 2 enantiomers and only L amino acids are found in proteins

Card 3

Front

How are amino acids different?

Back

Preview of the front of card 3

Card 4

Front

How do amino aicds bind together?

Back

Preview of the front of card 4

Card 5

Front

What is the primary structure of a protein?

Back

Preview of the front of card 5
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