Methods and systems for processing polymeric analytes

A method for sequencing a peptide comprising a plurality of amino acids, comprising:

• (a) providing said peptide and a linker, wherein said linker is coupled to a linking nucleic acid molecule;
• (b) coupling said linker to an amino acid of said plurality of amino acids;
• (c) coupling said linking nucleic acid molecule to an oligonucleotide capture moiety;
• (d) cleaving said amino acid from said peptide, thereby yielding a cleaved amino acid coupled to said oligonucleotide capture moiety;
• (e) contacting said cleaved amino acid with a binding agent, wherein said binding agent comprises a detectable label;
• and
• (f) detecting said detectable label, thereby identifying said amino acid.