Schematic procedure of the ChromaFlash™ Chromatin Isolation & Shearing Kit.
Chromatin was extracted from six MDA-231 cell samples. 40 ul (8 ug) of chromatin were sheared in a 0.2 ml tube using the EpiSonic 1100 for 20 cycles (15 sec On and 30 sec Off). DNA was purified and then run on a gel.
The sheared chromatin was used for ChIP-qPCR analysis of RNA polymerase II enrichment in GAPDH and MLH1 promoters by using the ChromaFlash™ One-Step ChIP Kit (P-2025) and the Methylamp™ MS-qPCR Fast Kit (P-1028).