First Author | Osada H | Year | 1995 |
Journal | Proc Natl Acad Sci U S A | Volume | 92 |
Issue | 21 | Pages | 9585-9 |
PubMed ID | 7568177 | Mgi Jnum | J:175133 |
Mgi Id | MGI:5142399 | Doi | 10.1073/pnas.92.21.9585 |
Citation | Osada H, et al. (1995) Association of erythroid transcription factors: complexes involving the LIM protein RBTN2 and the zinc-finger protein GATA1. Proc Natl Acad Sci U S A 92(21):9585-9 |
abstractText | The RBTN2 LIM-domain protein, originally identified as an oncogenic protein in human T-cell leukemia, is essential for erythropoiesis. A possible role for RBTN2 in transcription during erythropoiesis has been investigated. Direct interaction of the RBTN2 protein was observed in vivo and in vitro with the GATA1 or -2 zinc-finger transcription factors, as well as with the basic helix-loop-helix protein TAL1. By using mammalian two-hybrid analysis, complexes involving RBTN2, TAL1, and GATA1, together with E47, the basic helix-loop-helix heterodimerization partner of TAL1, could be demonstrated. Thus, a molecular link exists between three proteins crucial for erythropoiesis, and the data suggest that variations in amounts of complexes involving RBTN2, TAL1, and GATA1 could be important for erythroid differentiation. |