a dna fragment spanning nucleotides -183 to -4 with respect to the cap site of the rat l-type pyruvate kinase ( l-pk ) gene contains at least four binding sites for putative transcriptional factors : hepatocyte nuclear factor 1 ( hnf1 ) , liver factor a1 ( lf-a1 ) , nuclear factor 1 ( nf1 ) , and major late transcription factor ( mltf ) .
C0040648
transcriptional factors
C0069116
nuclear factor 1