Transcription factor that binds specifically to a 5'-AA[AG]G-3' consensus core sequence (By similarity). Binds to 5'-TAAAGT-3' motif in REV promoter to triggers its transcription, thus regulating adaxial-abaxial polarity and influencing leaf axial patterning in an auxin transport- and response-dependent manner (e.g. IAA6 and IAA19 genes expression) (PubMed:20807212). Probably involved in early processes for vascular development (PubMed:17583520). The PEAR proteins (e.g. DOF2.4, DOF5.1, DOF3.2, DOF1.1, DOF5.6 and DOF5.3) activate gene expression that promotes radial growth of protophloem sieve elements (PubMed:30626969). Expressed ubiquitously, especially in the vascular tissues, except in seeds, petals and anthers (PubMed:20807212). Specific to the vascular tissues in young leaves, cotyledons and flower buds (PubMed:17583520). The PEAR proteins (e.g. DOF2.4, DOF5.1, DOF3.2, DOF1.1, DOF5.6 and DOF5.3) form a short-range concentration gradient that peaks at protophloem sieve elements (PSE) (PubMed:30626969). Specific to both elongating procambial cells and to cells isodiametric in size that are presumably destined to develop into higher-order veins. Strongly expressed in advance of perceptible procambium formation. Expressed in the cells of prospective veins in leaf primordia of seedlings and cotyledons of developing embryos, and the vascular tissue of developing flower buds. By cytokinin in procambium. Narrow and down-wardly curled leaves (PubMed:20807212). The pear1 pear2 tmo6 triple mutant variably displays reduced radial growth. The pear1 pear2 dof6 tmo6 quadruple mutant plants showed a greater uniform reduction in radial growth, associated with compromised symplastic trafficking (PubMed:30626969).