Abstract: A computational method for constructing a synthetic peptide sequence is disclosed. The method of the present invention includes the steps of (i) identifying a candidate sequence building block set comprising candidate sequence building blocks from a base set comprising known functional peptide sequences and optionally known non-functional peptide sequences; (ii) selecting a qualified sequence building block set comprising qualified sequence building blocks from said candidate sequence building block set; said qualified sequence building blocks satisfying a threshold requirement and (iii) assembling said qualified sequence building blocks to generate a synthetic peptide sequence. A synthetic peptide sequence and a functional synthetic peptide are also described.