BioChain’s Genomic DNAs are available from tumor cell lines. Each organ genomic DNA is from a single donor.
BioChain’s tissue genomic DNAs are isolated from a wide variety of tissues using a proprietary modified guanidine thiocyanate technique. The quality and purity of genomic DNA are tested by spectrophotometer and electrophoresis. A260/280 is between 1.8 and 2.0, and A260/230 is >2.0 (detected in 10 mM Tris-Cl, pH 7.5). Contamination of RNA, polysaccharides and proteoglycans has been effectively eliminated.