trans,hydroxyproline,proline
Proline
391233-79-7L-Proline,L-prolyl-L-valyl-L-histidyl-L-methionyl-L-seryl-L-prolyl-L-leucyl-L-a-glutamyl-
488728-47-8L-Proline,L-prolyl-L-lysyl-L-phenylalanyl-L-arginyl-L-seryl-L-leucyl-L-threonyl-L-histidyl-L-a-glutamyl-L-a-aspartyl-L-histidyl-L-alanyl-L-isoleucyl-L-glutaminyl-L-prolyl-L-glutaminyl-L-asparaginyl-L-phenylalanyl-L-methionyl-