When glycine polymerises to produce a polypeptide, the resulting polymer formula is given as (-HNCH2COO-) and nH2O. Why is there an extra O in there? The amide link forms between the COOH and the NH2, so the OH from the COOH should combine with the H from the NH2, meaning the formula should be (-HNCH2CO-) and nH2O. Can anyone explain this? I have checked multiple sources online, and they all give the formula with the extra O, with no explanation why the extra O is there! It's driving me mad! Many thanks!
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Polypeptide notation watch
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Last edited by Lemongreen; 01-11-2017 at 19:14. Reason: typo
- 01-11-2017 19:12