Ptpγ antisense constructs. Diagrams of the Ptpγ antisense constructs used for transfection in the colony assay experiment and in the columns to the right a summary of results of the colony-formation assay; numbers in parentheses indicate the number of independent transfectant clones analyzed for each condition. Plus and minus signs mean that, in the methylcellulose colony assay for hematopoietic colonies, the appropriate antisense or sense construct transfected clones either did not (−) or did (+) give hematopoietic colonies. The full-length Ptpγ cDNA is shown at the top of the figure. The different boxes represent the sequences encoding known functional domains. CA-like, carbonic anhydrase domain; FNIII, fibronectin type III repeat; TM, transmembrane domain; D1 and D2, phosphatase domains.