We demonstrate that PBP interacts with all five GATA factors analyzed , GATA 1 , GATA 2 , GATA 3 , GATA 4 , and GATA 6 , and show that the binding of GATA 1 , GATA 4 , and GATA 6 to PBP is not dependent on the nuclear receptor recognition sequence motif LXXLL ( where L is leucine and 10 is any amino acid ) in PBP . 0.66596012^^^