[1] Mem Sloan Kettering Canc Ctr, New York, NY 10065 USA
[2] Cold Spring Harbor Lab, Cold Spring Harbor, NY 11724 USA
[3] Watson Sch Biol Sci, Cold Spring Harbor, NY 11724 USA
[4] Tsinghua Univ, MOE Key Lab Bioinformat, Bioinformat Div, TNLIST,Dept Automat, Beijing 100084, Peoples R China
[5] Howard Hughes Med Inst, New York, NY 10065 USA