title:    Illumina sequencing of H9 endoderm Methyl-seq library #1:  HpaII genomic fragments   
design:      H9 endoderm cells were generated from H9 hESCs using activin A, and FACS sorted with CXCR4.  Genomic DNA was extracted and digested with HpaII.  Fragments were made into Illumina sequencing libraries by addition of Illumina linkers to repaired ends, PCR amplification, gel extration of fragments ~30-260bp (excluding linkers), and a second PCR amplification.  Purified DNA was used for cluster generation and sequencing using the Illumina 1G Genome Analyzer.     