The present invention relates to repetitive self-assembling precursor proteins, nucleic acid sequences and expression constructs coding therefor, and to methods of recombinantly producing peptides by using such precursor proteins.本發明係關於重複自組裝前驅蛋白質、編碼其之核酸序列及表現構築體、及藉由使用該等前驅蛋白質重組產製胜肽之方法。