to share – to copy, distribute and transmit the work
to remix – to adapt the work
Under the following conditions:
attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.
The generic structural formula for an amino acid, showing the three functional groups substituted on the alpha carbon (top); formation of peptide bonds between the C-terminus of one amino acid and the N-terminus of an adjacent amino acid (bottom).