PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 20814592-3 2010 We report here that in murine B16 melanoma cells, which have been previously shown to express constitutively active STAT3, the expression of a mutant form of STAT3 with the canonical tyrosine phosphorylation site (residue 705) mutated to phenylanaine has dominant-negative properties (STAT3-DN). phenylanaine 238-250 signal transducer and activator of transcription 3 Mus musculus 116-121 20814592-3 2010 We report here that in murine B16 melanoma cells, which have been previously shown to express constitutively active STAT3, the expression of a mutant form of STAT3 with the canonical tyrosine phosphorylation site (residue 705) mutated to phenylanaine has dominant-negative properties (STAT3-DN). phenylanaine 238-250 signal transducer and activator of transcription 3 Mus musculus 158-163 20814592-3 2010 We report here that in murine B16 melanoma cells, which have been previously shown to express constitutively active STAT3, the expression of a mutant form of STAT3 with the canonical tyrosine phosphorylation site (residue 705) mutated to phenylanaine has dominant-negative properties (STAT3-DN). phenylanaine 238-250 signal transducer and activator of transcription 3 Mus musculus 158-163