Western painting critic Robert Coates. Abstract expressionism, Action painting, and Color Field painting are synonymous with the New York School. Technically Surrealism was an important predecessor for Abstract expressionism with its emphasis on spontaneous, automatic or subconscious creation. Jackson Pollock's dripping paint onto a canvas laid on the floor is a technique that has its roots in the work of André Masson. Another important ear<nowiki>ly m</nowiki>anifestation of what came to be abstract expressionism is the work of American Northwest artist Mark Tobey, especially his "white writing" canvases, which, though generally not large in scale, anticipate the "all over" look of Pollock's drip
DRIP-seq H1-treated sample, which serves as an input control. Due to the absence of another antibody-based method for R-loop immunoprecipitation, validation of DRIP-seq results is difficult. However, results of other R-loop profiling methods, such as DRIVE-seq, may be used to measure consensus. On the other hand, DRIP-seq relies on existing short-read sequencing platforms for the sequencing of R-loops. In other words, all inherent limitations of these platform also apply to DRIP-seq. In particular, typical short-read sequencing platforms would produce uneven read coverage in GC-rich regions. Sequencing long R-loops might pose a challenge because R-loops are predominantly formed in cytosine-rich DNA regions.