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miRNAs regulating pro-B to pre-B development. Transcription factors are indicated in blue ovals, the phosphoinositide kinase PI3K is shown as a brown box, the PTEN phosphatase is shown as a green oval, and miRNAs are colored wavy lines. Solid lines specify the direct regulation of mRNAs by the miRNA and dotted lines designate modulation of signaling pathways that alter the expression of the transcription factors. Unidentified regulators are indicated with question marks.
