Categories of Macromolecules What are Four Types of Macromolecules? Carbohydrates Lipids Proteins
Macromolecules proteins lipids - Amazon S3 · 2019-02-08 · folded stability, most proteins are...
Transcript of Macromolecules proteins lipids - Amazon S3 · 2019-02-08 · folded stability, most proteins are...
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Macromolecules
Presenter’s Name
Proteins and Lipids
Sarah MaurerAssociate ProfessorCentral Connecticut State University
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1 - 2 Amino acids
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Condensation of Two Amino Acids
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Protein function• Specifically target recognition (due to folded
structure) - lock and key mechanism• Need at least several amino acids to have
folded stability, most proteins are 50+ amino acids
• Enzymes are catalysts▪ Lower transition state energy▪ Orient and ”concentrate” reactants
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Lipids• Phospholipids make up modern cell
membranes• Other amphiphilic molecules can also form
membranes
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Fatty acid
Fatty acid
Fatty acid
Gly
cero
l
Storage lipids: triacylglycerols
Fatty acid
Fatty acid
Gly
cero
l alkane
Fatty amide
PO4
Gly
cero
l Fatty acid
Fatty acid
Gly
cero
l
alkane
Fatty amide
Gly
cero
l
Diphytanyl
Diphytanyl
Gly
cero
l
Phospholipids
Glycerophospho- Sphingo-
Glycolipids
Sphingo- glacto- (sulfo-)
Archael ether lipids
Gly
cero
l
Membrane forming lipids
PO4
PO4
PO4
Gly
cero
lSO4
Head Group
Hydrophobic
“Backbone”
Sugar SugarCholinealcohol
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glycerol
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Structure of phospholipids
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Simpler lipids?• Single chain amphiphiles with with chemically
diverse headgroups• Less stable than phospholipids