UNIT 7.10 Single Molecule Sequencing with a HeliScope Genetic Analysis System

  1. John F. Thompson,
  2. Kathleen E. Steinmann

Published Online: 1 OCT 2010

DOI: 10.1002/0471142727.mb0710s92

Current Protocols in Molecular Biology

Current Protocols in Molecular Biology

How to Cite

Thompson, J. F. and Steinmann, K. E. 2010. Single Molecule Sequencing with a HeliScope Genetic Analysis System. Current Protocols in Molecular Biology. 92:7.10:7.10.1–7.10.14.

Author Information

  1. Helicos BioSciences, Cambridge, Massachusetts

Publication History

  1. Published Online: 1 OCT 2010
  2. Published Print: OCT 2010


Helicos™ Single Molecule Sequencing (SMS) provides a unique view of genome biology through direct sequencing of cellular nucleic acids in an unbiased manner, providing both accurate quantitation and sequence information. Sample preparation does not require ligation or PCR amplification, avoiding the GC-content and size biases observed in other technologies. DNA is simply sheared, tailed with poly(A), and hybridized to a flow cell surface containing oligo(dT) for sequencing-by-synthesis of billions of molecules in parallel. This process also requires far less material than other technologies. Gene expression measurements can be done using first-strand cDNA-based methods (RNA-Seq) or using a novel approach that allows direct hybridization and sequencing of cellular RNA for the most direct quantitation possible. In this unit, principles and methods for using the Helicos® Genetic Analysis System are discussed. Curr. Protoc. Mol. Biol. 92:7.10.1-7.10.14. © 2010 by John Wiley & Sons, Inc.


  • Next Gen Sequencing;
  • DNA shearing;
  • FFPE sequencing