TAL1T-cell acute lymphocytic leukemia protein 1 is a protein that in humans is encoded by the TAL1 gene.The protein encoded by TAL1 is a basic helix-loop-helix transcription factor.InteractionsTAL1 has been shown to interact with: CBFA2T3, EP300, GATA1, LDB1, LMO1, LMO2, SIN3A, Sp1 transcription factor, and TCF3.