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RAP opportunity at National Institute of Standards and Technology     NIST

Development of Technologies to Enable Single Molecule Protein Sequencing


Material Measurement Laboratory, Biomolecular Measurement Division

opportunity location
50.64.51.B8099 Gaithersburg, MD

NIST only participates in the February and August reviews.


name email phone
John P. Marino 240.314.6361


Despite the great promise for the field of proteomics, technologies for identifying and quantifying low abundance proteins remain limited. Mass spectrometry (MS) is the most widely used approach for peptide/protein identification and quantification, and has been the method of choice for clinical biomarker discovery. Although MS technology has rapidly advanced, the detection of current commercial instruments are limited in a dynamic range of 104 ~ 105 even when combined with good sample separation. These represent a significant drawback when applied to the analysis of complex biological samples, such as serum or cell lysates where the proteome can span a dynamic range of ~1010 and most valuable protein biomarkers are believed to be in low abundance (i.e., concentrations of a pmol/L or less). To address this technological bottleneck, we are developing a new technology platform--next gen protein sequencing--based on large-scale, massively parallel, single-molecule peptide sequencing. This platform is not limited in dynamic range and thus will enable identification of the composition of complete proteomes through the individual sequencing of billions of peptides, including those of low abundance. The method will also enable absolute protein quantification by digitally counting the number of peptides with the same sequence, similar to digital polymerase chain reaction (PCR).


key words
Protein; Single-molecule; Sequencing; Proteomics; Microfluidics; Fluorescence; Biochemistry; High-throughput;


Citizenship:  Open to U.S. citizens
Level:  Open to Postdoctoral applicants


Base Stipend Travel Allotment Supplementation
$82,764.00 $3,000.00
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