A legitimate chemical website goes one better:
http://www.rcdc.nd.edu/compilations/Eaq/EAQ1263.HTM

This is a description of reaction rates in glycylglycylglycylglycylglycine.

The structure of the amino acid glycine means this can be compounded in arbitrarily long chains. It's CH2(NH2)COOH, and the chaining lops off either an H from NH2 or an OH from the COOH, giving CH2(NH-)COOH at one end, CH2(NH2)CO+ at the other, and as many CH2(NH-)CO+ as you please between them.