Decoding Randomly Ordered DNA Arrays
0301 basic medicine
Random Allocation
0303 health sciences
03 medical and health sciences
Research Design
Computational Biology
Sequence Analysis, DNA
Silicon Dioxide
Algorithms
Oligonucleotide Array Sequence Analysis
DOI:
10.1101/gr.2255804
Publication Date:
2004-04-13T01:03:45Z
AUTHORS (20)
ABSTRACT
We have developed a simple and efficient algorithm to identify each member of a large collection of DNA-linked objects through the use of hybridization, and have applied it to the manufacture of randomly assembled arrays of beads in wells. Once the algorithm has been used to determine the identity of each bead, the microarray can be used in a wide variety of applications, including single nucleotide polymorphism genotyping and gene expression profiling. The algorithm requires only a few labels and several sequential hybridizations to identify thousands of different DNA sequences with great accuracy. We have decoded tens of thousands of arrays, each with 1520 sequences represented at ∼30-fold redundancy by up to ∼50,000 beads, with a median error rate of <1 × 10-4 per bead. The approach makes use of error checking codes and provides, for the first time, a direct functional quality control of every element of each array that is manufactured. The algorithm can be applied to any spatially fixed collection of objects or molecules that are associated with specific DNA sequences.
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