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    Myoglobin Protein

    What Are Proteins?
    Amino Acids, Peptide Bonds & Levels of Protein Structure 


    Organic molecules are large chemical compounds that contain carbon-hydrogen bonds and are found in living things. The major classes of organic molecules are  carbohydrates, proteins, lipids and 
    nucleic acids.
    Article Summary: Learn about the chemical bonds and different levels of structure that take amino acid monomers to a whole other level, a complex protein polymer.

    What Are Proteins? Amino Acids & Peptide Bonds
    …all attached to same carbon atom (the α–carbon or alpha carbon). A fourth bond attaches α-carbon to a side group that varies among different amino acids. These side groups are important, as they affect the way a protein’s amino acids interact with one another, and how a protein interacts with other molecules.

    Although there are hundreds of different amino acids, most organisms use only 21 to build proteins.

    Page last updated: 9/2013
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    Continued ... 
    Levels of Protein Structure
    Amino Acid Chemical Structure
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