Figure 7. Plate fingerprint.
Positive controls can be used to encode the name of the treatment plate in the edge wells with up to eleven characters for a 384-well plate (5 for a 96-well plate). Each letter in the label ‘ drug_trt_’ is transformed into a list of 6-bit values that defined treatments along row A, row P, column 1 and column 24 (one well per bit, six wells per character). Last value of column 24 is a checksum.