QuBit

Summary

The NGSC uses the Life Technologies QuBit to assess the concentration of libraries. The Qubit can measure protein, single- and double-stranded DNA, and RNA. The single-stranded DNA mode is especially helpful to quantify RNA-seq libraries with the 'high junk'.

This high junk is good library and is an indication of over PCRing or not enough primers. Since the ends of the library have sequence homology, they will substitute for the primers and thus cause daisy chaining or a big clump of ssDNA. This is the high junk. Therefore, denaturing the libraries and using the ssDNA Qubit kit allows us to resolve the actual concentration of these complicated libraries.