Methods and appratus for protein and peptide sequencing

Abstract

This disclosure is directed to a method for sequencing protein and peptide. The method specifies the steps of providing a polypeptide that is immobilized on solid surfaces and binding a N-terminal amino acid (NTAA) of the polypeptide with a modification molecule. Further, the method requires contacting the polypeptide with a NTAA binding molecule with a DNA coding tag, transferring an information from the DNA coding tag of the NTAA binding molecule to a universal primer and then forming an extended DNA tag on the solid surfaces, and cleaving the N-terminal amino acid on the polypeptide. Then, step (b) through step (e) are cyclically repeated. Finally, extended DNA strains are decoding on the solid surfaces.

Dependencies are inferred from the claim text.