"The peptide bond is - like any amide - fixed in a planar arrangement, due to mesomeric effects"
"peptide bonds are like double bonds no rotation get rotation from the a- carbons"
METAMIA is a free database of analogy and metaphor. Anyone can contribute or search. The subject matter can be anything. Science is popular, but poetry is encouraged. The goal is to integrate our fluid muses with the stark literalism of a relational database. Metamia is like a girdle for your muses, a cognitive girdle.