Abstract: The present invention provides a system and method for assessing the fidelity of a synthetic peptide population including interrogating a population of peptide features in the presence of a receptor having an affinity for a plurality of binder sequences. A first amino acid is at a defined position within a first one of the binder sequences, and the population of peptide features includes a first control peptide feature synthesized to have an amino acid sequence including the first one of the binder sequences. The system and method further includes detecting a signal output characteristic of an interaction of the receptor with the first control peptide feature. The signal output is indicative of the fidelity of incorporation of the first amino acid into the first control peptide at the defined position within the first one of the binder sequences.

Abstract: The present invention provides a system and method for assessing a synthetic peptide population including interrogating a population of peptide features in the presence of a receptor having an affinity for a binder sequence. The population of peptide features is synthesized over a plurality of synthesis periods and includes a plurality of control peptide features synthesized to have an amino acid sequence including the binder sequence. The control peptide features include a first feature synthesized beginning with a first one of the synthesis periods, and a second feature synthesized beginning after the first one of the synthesis periods such that synthesis of the second control peptide feature is delayed by at least one synthesis period. The method further includes detecting a signal output characteristic of an interaction of the receptor with the control peptide features, the signal output indicative of the fidelity of synthesis of the population of peptide features.

Abstract: The present invention provides a system and method for assessing a synthetic peptide population including interrogating a population of peptide features in the presence of a receptor having an affinity for a binder sequence. The population of peptide features is synthesized over a plurality of synthesis periods and includes a plurality of control peptide features synthesized to have an amino acid sequence including the binder sequence. The control peptide features include a first feature synthesized beginning with a first one of the synthesis periods, and a second feature synthesized beginning after the first one of the synthesis periods such that synthesis of the second control peptide feature is delayed by at least one synthesis period. The method further includes detecting a signal output characteristic of an interaction of the receptor with the control peptide features, the signal output indicative of the fidelity of synthesis of the population of peptide features.

Abstract: The present invention provides a system and method for assessing a synthetic peptide population including interrogating a population of peptide features in the presence of a receptor having an affinity for a binder sequence. The population of peptide features is synthesized over a plurality of synthesis periods and includes a plurality of control peptide features synthesized to have an amino acid sequence including the binder sequence. The control peptide features include a first feature synthesized beginning with a first one of the synthesis periods, and a second feature synthesized beginning after the first one of the synthesis periods such that synthesis of the second control peptide feature is delayed by at least one synthesis period. The method further includes detecting a signal output characteristic of an interaction of the receptor with the control peptide features, the signal output indicative of the fidelity of synthesis of the population of peptide features.

Abstract: The present invention provides a system and method for assessing the fidelity of a synthetic peptide population including interrogating a population of peptide features in the presence of a receptor having an affinity for a plurality of binder sequences. A first amino acid is at a defined position within a first one of the binder sequences, and the population of peptide features includes a first control peptide feature synthesized to have an amino acid sequence including the first one of the binder sequences. The system and method further includes detecting a signal output characteristic of an interaction of the receptor with the first control peptide feature. The signal output is indicative of the fidelity of incorporation of the first amino acid into the first control peptide at the defined position within the first one of the binder sequences.