PubMed:7605990
Annnotations
DisGeNET
{"project":"DisGeNET","denotations":[{"id":"T0","span":{"begin":494,"end":498},"obj":"gene:861"},{"id":"T1","span":{"begin":555,"end":572},"obj":"disease:C0023470"}],"relations":[{"id":"R1","pred":"associated_with","subj":"T0","obj":"T1"}],"namespaces":[{"prefix":"gene","uri":"http://www.ncbi.nlm.nih.gov/gene/"},{"prefix":"disease","uri":"http://purl.bioontology.org/ontology/MEDLINEPLUS/"}],"text":"Positive and negative regulation of granulocyte-macrophage colony-stimulating factor promoter activity by AML1-related transcription factor, PEBP2.\nThe granulocyte-macrophage colony-stimulating factor (GM-CSF) gene promoter contains a consensus sequence for the polyomavirus enhancer binding-protein 2 (PEBP2) transcription factor, which consists of alpha and beta subunits. There are at least two genes, alpha A and alpha B, encoding the alpha subunit. alpha B is the mouse homologue of human AML1 gene detected at the breakpoints of t(8;21) and t(3;21) myeloid leukemias. We examined alpha A1 (an alpha A-gene product) and alpha B1 and alpha B2 (two alpha B-encoded isomers) for their effects on the GM-CSF promoter. PEBP2 alpha A1, alpha B1, and alpha B2 proteins bound the PEBP2 site within the mouse GM-CSF promoter. PEBP2 alpha A1 and alpha B1 enhanced the expression of the GM-CSF promoter-driven reporter plasmid in unstimulated and 12-O-tetradecanoylphorbol 13-acetate/phytohemagglutinin-stimulated human Jurkat T cells. In contrast, the promoter activity was suppressed by alpha B2. Coexpression of alpha B1 and alpha B2 showed that the promoter activity could be determined by the alpha B1/alpha B2 ratio. Jurkat cell extract contained PEBP2 site-binding protein(s) that cross-reacted with antimouse alpha A1 antibodies. Northern blot analysis indicated the expression of human PEBP2 alpha A, alpha B (AML1), and beta genes in Jurkat cells. Although further studies are required to determine the precise role of PEBP2 in the GM-CSF promoter activity, the present findings suggested the importance of the relative ratio of different PEBP2 isoforms in regulating the levels of the promoter activity."}
jnlpba-st-training
{"project":"jnlpba-st-training","denotations":[{"id":"T1","span":{"begin":36,"end":84},"obj":"protein"},{"id":"T2","span":{"begin":106,"end":139},"obj":"protein"},{"id":"T3","span":{"begin":141,"end":146},"obj":"protein"},{"id":"T4","span":{"begin":152,"end":223},"obj":"DNA"},{"id":"T5","span":{"begin":262,"end":330},"obj":"protein"},{"id":"T6","span":{"begin":350,"end":373},"obj":"protein"},{"id":"T7","span":{"begin":405,"end":412},"obj":"DNA"},{"id":"T8","span":{"begin":417,"end":424},"obj":"DNA"},{"id":"T9","span":{"begin":439,"end":452},"obj":"protein"},{"id":"T10","span":{"begin":454,"end":461},"obj":"DNA"},{"id":"T11","span":{"begin":469,"end":484},"obj":"DNA"},{"id":"T12","span":{"begin":488,"end":503},"obj":"DNA"},{"id":"T13","span":{"begin":586,"end":594},"obj":"protein"},{"id":"T14","span":{"begin":599,"end":619},"obj":"protein"},{"id":"T15","span":{"begin":625,"end":633},"obj":"protein"},{"id":"T16","span":{"begin":638,"end":646},"obj":"protein"},{"id":"T17","span":{"begin":652,"end":675},"obj":"protein"},{"id":"T18","span":{"begin":702,"end":717},"obj":"DNA"},{"id":"T19","span":{"begin":719,"end":733},"obj":"protein"},{"id":"T20","span":{"begin":735,"end":743},"obj":"protein"},{"id":"T21","span":{"begin":749,"end":766},"obj":"protein"},{"id":"T22","span":{"begin":777,"end":787},"obj":"DNA"},{"id":"T23","span":{"begin":799,"end":820},"obj":"DNA"},{"id":"T24","span":{"begin":822,"end":836},"obj":"protein"},{"id":"T25","span":{"begin":841,"end":849},"obj":"protein"},{"id":"T26","span":{"begin":881,"end":920},"obj":"DNA"},{"id":"T27","span":{"begin":924,"end":1028},"obj":"cell_line"},{"id":"T28","span":{"begin":1083,"end":1091},"obj":"protein"},{"id":"T29","span":{"begin":1109,"end":1117},"obj":"protein"},{"id":"T30","span":{"begin":1122,"end":1130},"obj":"protein"},{"id":"T31","span":{"begin":1192,"end":1200},"obj":"protein"},{"id":"T32","span":{"begin":1200,"end":1209},"obj":"protein"},{"id":"T33","span":{"begin":1247,"end":1273},"obj":"protein"},{"id":"T34","span":{"begin":1301,"end":1330},"obj":"protein"},{"id":"T35","span":{"begin":1389,"end":1402},"obj":"protein"},{"id":"T36","span":{"begin":1404,"end":1411},"obj":"DNA"},{"id":"T37","span":{"begin":1413,"end":1417},"obj":"DNA"},{"id":"T38","span":{"begin":1424,"end":1434},"obj":"DNA"},{"id":"T39","span":{"begin":1438,"end":1450},"obj":"cell_line"},{"id":"T40","span":{"begin":1523,"end":1528},"obj":"protein"},{"id":"T41","span":{"begin":1536,"end":1542},"obj":"protein"},{"id":"T42","span":{"begin":1643,"end":1657},"obj":"protein"}],"text":"Positive and negative regulation of granulocyte-macrophage colony-stimulating factor promoter activity by AML1-related transcription factor, PEBP2.\nThe granulocyte-macrophage colony-stimulating factor (GM-CSF) gene promoter contains a consensus sequence for the polyomavirus enhancer binding-protein 2 (PEBP2) transcription factor, which consists of alpha and beta subunits. There are at least two genes, alpha A and alpha B, encoding the alpha subunit. alpha B is the mouse homologue of human AML1 gene detected at the breakpoints of t(8;21) and t(3;21) myeloid leukemias. We examined alpha A1 (an alpha A-gene product) and alpha B1 and alpha B2 (two alpha B-encoded isomers) for their effects on the GM-CSF promoter. PEBP2 alpha A1, alpha B1, and alpha B2 proteins bound the PEBP2 site within the mouse GM-CSF promoter. PEBP2 alpha A1 and alpha B1 enhanced the expression of the GM-CSF promoter-driven reporter plasmid in unstimulated and 12-O-tetradecanoylphorbol 13-acetate/phytohemagglutinin-stimulated human Jurkat T cells. In contrast, the promoter activity was suppressed by alpha B2. Coexpression of alpha B1 and alpha B2 showed that the promoter activity could be determined by the alpha B1/alpha B2 ratio. Jurkat cell extract contained PEBP2 site-binding protein(s) that cross-reacted with antimouse alpha A1 antibodies. Northern blot analysis indicated the expression of human PEBP2 alpha A, alpha B (AML1), and beta genes in Jurkat cells. Although further studies are required to determine the precise role of PEBP2 in the GM-CSF promoter activity, the present findings suggested the importance of the relative ratio of different PEBP2 isoforms in regulating the levels of the promoter activity."}
DisGeNET5_gene_disease
{"project":"DisGeNET5_gene_disease","denotations":[{"id":"7605990-2#119#123#gene861","span":{"begin":494,"end":498},"obj":"gene861"},{"id":"7605990-2#180#197#diseaseC0023470","span":{"begin":555,"end":572},"obj":"diseaseC0023470"}],"relations":[{"id":"119#123#gene861180#197#diseaseC0023470","pred":"associated_with","subj":"7605990-2#119#123#gene861","obj":"7605990-2#180#197#diseaseC0023470"}],"text":"Positive and negative regulation of granulocyte-macrophage colony-stimulating factor promoter activity by AML1-related transcription factor, PEBP2.\nThe granulocyte-macrophage colony-stimulating factor (GM-CSF) gene promoter contains a consensus sequence for the polyomavirus enhancer binding-protein 2 (PEBP2) transcription factor, which consists of alpha and beta subunits. There are at least two genes, alpha A and alpha B, encoding the alpha subunit. alpha B is the mouse homologue of human AML1 gene detected at the breakpoints of t(8;21) and t(3;21) myeloid leukemias. We examined alpha A1 (an alpha A-gene product) and alpha B1 and alpha B2 (two alpha B-encoded isomers) for their effects on the GM-CSF promoter. PEBP2 alpha A1, alpha B1, and alpha B2 proteins bound the PEBP2 site within the mouse GM-CSF promoter. PEBP2 alpha A1 and alpha B1 enhanced the expression of the GM-CSF promoter-driven reporter plasmid in unstimulated and 12-O-tetradecanoylphorbol 13-acetate/phytohemagglutinin-stimulated human Jurkat T cells. In contrast, the promoter activity was suppressed by alpha B2. Coexpression of alpha B1 and alpha B2 showed that the promoter activity could be determined by the alpha B1/alpha B2 ratio. Jurkat cell extract contained PEBP2 site-binding protein(s) that cross-reacted with antimouse alpha A1 antibodies. Northern blot analysis indicated the expression of human PEBP2 alpha A, alpha B (AML1), and beta genes in Jurkat cells. Although further studies are required to determine the precise role of PEBP2 in the GM-CSF promoter activity, the present findings suggested the importance of the relative ratio of different PEBP2 isoforms in regulating the levels of the promoter activity."}
pubmed-sentences-benchmark
{"project":"pubmed-sentences-benchmark","denotations":[{"id":"S1","span":{"begin":0,"end":147},"obj":"Sentence"},{"id":"S2","span":{"begin":148,"end":374},"obj":"Sentence"},{"id":"S3","span":{"begin":375,"end":453},"obj":"Sentence"},{"id":"S4","span":{"begin":454,"end":573},"obj":"Sentence"},{"id":"S5","span":{"begin":574,"end":718},"obj":"Sentence"},{"id":"S6","span":{"begin":719,"end":821},"obj":"Sentence"},{"id":"S7","span":{"begin":822,"end":1029},"obj":"Sentence"},{"id":"S8","span":{"begin":1030,"end":1092},"obj":"Sentence"},{"id":"S9","span":{"begin":1093,"end":1216},"obj":"Sentence"},{"id":"S10","span":{"begin":1217,"end":1331},"obj":"Sentence"},{"id":"S11","span":{"begin":1332,"end":1451},"obj":"Sentence"},{"id":"S12","span":{"begin":1452,"end":1708},"obj":"Sentence"}],"text":"Positive and negative regulation of granulocyte-macrophage colony-stimulating factor promoter activity by AML1-related transcription factor, PEBP2.\nThe granulocyte-macrophage colony-stimulating factor (GM-CSF) gene promoter contains a consensus sequence for the polyomavirus enhancer binding-protein 2 (PEBP2) transcription factor, which consists of alpha and beta subunits. There are at least two genes, alpha A and alpha B, encoding the alpha subunit. alpha B is the mouse homologue of human AML1 gene detected at the breakpoints of t(8;21) and t(3;21) myeloid leukemias. We examined alpha A1 (an alpha A-gene product) and alpha B1 and alpha B2 (two alpha B-encoded isomers) for their effects on the GM-CSF promoter. PEBP2 alpha A1, alpha B1, and alpha B2 proteins bound the PEBP2 site within the mouse GM-CSF promoter. PEBP2 alpha A1 and alpha B1 enhanced the expression of the GM-CSF promoter-driven reporter plasmid in unstimulated and 12-O-tetradecanoylphorbol 13-acetate/phytohemagglutinin-stimulated human Jurkat T cells. In contrast, the promoter activity was suppressed by alpha B2. Coexpression of alpha B1 and alpha B2 showed that the promoter activity could be determined by the alpha B1/alpha B2 ratio. Jurkat cell extract contained PEBP2 site-binding protein(s) that cross-reacted with antimouse alpha A1 antibodies. Northern blot analysis indicated the expression of human PEBP2 alpha A, alpha B (AML1), and beta genes in Jurkat cells. Although further studies are required to determine the precise role of PEBP2 in the GM-CSF promoter activity, the present findings suggested the importance of the relative ratio of different PEBP2 isoforms in regulating the levels of the promoter activity."}
genia-medco-coref
{"project":"genia-medco-coref","denotations":[{"id":"C26","span":{"begin":36,"end":102},"obj":"NP"},{"id":"C1","span":{"begin":106,"end":139},"obj":"NP"},{"id":"C2","span":{"begin":141,"end":146},"obj":"NP"},{"id":"C3","span":{"begin":148,"end":223},"obj":"NP"},{"id":"C4","span":{"begin":233,"end":330},"obj":"NP"},{"id":"C5","span":{"begin":332,"end":337},"obj":"NP"},{"id":"C6","span":{"begin":350,"end":373},"obj":"NP"},{"id":"C8","span":{"begin":394,"end":403},"obj":"NP"},{"id":"C10","span":{"begin":405,"end":412},"obj":"NP"},{"id":"C11","span":{"begin":417,"end":424},"obj":"NP"},{"id":"C7","span":{"begin":435,"end":452},"obj":"NP"},{"id":"C12","span":{"begin":454,"end":461},"obj":"NP"},{"id":"C16","span":{"begin":586,"end":620},"obj":"NP"},{"id":"C14","span":{"begin":625,"end":633},"obj":"NP"},{"id":"C15","span":{"begin":638,"end":646},"obj":"NP"},{"id":"C13","span":{"begin":586,"end":676},"obj":"NP"},{"id":"C17","span":{"begin":681,"end":686},"obj":"NP"},{"id":"C18","span":{"begin":698,"end":717},"obj":"NP"},{"id":"C19","span":{"begin":719,"end":733},"obj":"NP"},{"id":"C20","span":{"begin":735,"end":743},"obj":"NP"},{"id":"C21","span":{"begin":749,"end":757},"obj":"NP"},{"id":"C22","span":{"begin":795,"end":820},"obj":"NP"},{"id":"C23","span":{"begin":822,"end":836},"obj":"NP"},{"id":"C24","span":{"begin":841,"end":849},"obj":"NP"},{"id":"C25","span":{"begin":877,"end":903},"obj":"NP"},{"id":"C27","span":{"begin":1043,"end":1064},"obj":"NP"},{"id":"C28","span":{"begin":1083,"end":1091},"obj":"NP"},{"id":"C29","span":{"begin":1109,"end":1117},"obj":"NP"},{"id":"C30","span":{"begin":1122,"end":1130},"obj":"NP"},{"id":"C31","span":{"begin":1143,"end":1164},"obj":"NP"},{"id":"C32","span":{"begin":1247,"end":1276},"obj":"NP"},{"id":"C33","span":{"begin":1277,"end":1281},"obj":"NP"},{"id":"C34","span":{"begin":1383,"end":1402},"obj":"NP"},{"id":"C35","span":{"begin":1404,"end":1418},"obj":"NP"},{"id":"C36","span":{"begin":1523,"end":1528},"obj":"NP"},{"id":"C37","span":{"begin":1532,"end":1560},"obj":"NP"},{"id":"C38","span":{"begin":1686,"end":1707},"obj":"NP"}],"relations":[{"id":"R1","pred":"coref-appos","subj":"C2","obj":"C1"},{"id":"R2","pred":"coref-relat","subj":"C5","obj":"C4"},{"id":"R3","pred":"coref-part-whole","subj":"C10","obj":"C8"},{"id":"R4","pred":"coref-part-whole","subj":"C11","obj":"C8"},{"id":"R5","pred":"coref-part-whole","subj":"C7","obj":"C6"},{"id":"R6","pred":"coref-ident","subj":"C12","obj":"C11"},{"id":"R7","pred":"coref-pron","subj":"C17","obj":"C16"},{"id":"R8","pred":"coref-ident","subj":"C18","obj":"C3"},{"id":"R9","pred":"coref-ident","subj":"C19","obj":"C13"},{"id":"R10","pred":"coref-ident","subj":"C20","obj":"C14"},{"id":"R11","pred":"coref-ident","subj":"C21","obj":"C15"},{"id":"R12","pred":"coref-ident","subj":"C22","obj":"C18"},{"id":"R13","pred":"coref-ident","subj":"C23","obj":"C19"},{"id":"R14","pred":"coref-ident","subj":"C24","obj":"C20"},{"id":"R15","pred":"coref-ident","subj":"C25","obj":"C22"},{"id":"R16","pred":"coref-ident","subj":"C27","obj":"C26"},{"id":"R17","pred":"coref-ident","subj":"C28","obj":"C21"},{"id":"R18","pred":"coref-ident","subj":"C29","obj":"C24"},{"id":"R19","pred":"coref-ident","subj":"C30","obj":"C28"},{"id":"R20","pred":"coref-ident","subj":"C31","obj":"C27"},{"id":"R21","pred":"coref-relat","subj":"C33","obj":"C32"},{"id":"R22","pred":"coref-ident","subj":"C34","obj":"C10"},{"id":"R23","pred":"coref-ident","subj":"C35","obj":"C11"},{"id":"R24","pred":"coref-ident","subj":"C36","obj":"C2"},{"id":"R25","pred":"coref-ident","subj":"C37","obj":"C31"},{"id":"R26","pred":"coref-ident","subj":"C38","obj":"C37"}],"text":"Positive and negative regulation of granulocyte-macrophage colony-stimulating factor promoter activity by AML1-related transcription factor, PEBP2.\nThe granulocyte-macrophage colony-stimulating factor (GM-CSF) gene promoter contains a consensus sequence for the polyomavirus enhancer binding-protein 2 (PEBP2) transcription factor, which consists of alpha and beta subunits. There are at least two genes, alpha A and alpha B, encoding the alpha subunit. alpha B is the mouse homologue of human AML1 gene detected at the breakpoints of t(8;21) and t(3;21) myeloid leukemias. We examined alpha A1 (an alpha A-gene product) and alpha B1 and alpha B2 (two alpha B-encoded isomers) for their effects on the GM-CSF promoter. PEBP2 alpha A1, alpha B1, and alpha B2 proteins bound the PEBP2 site within the mouse GM-CSF promoter. PEBP2 alpha A1 and alpha B1 enhanced the expression of the GM-CSF promoter-driven reporter plasmid in unstimulated and 12-O-tetradecanoylphorbol 13-acetate/phytohemagglutinin-stimulated human Jurkat T cells. In contrast, the promoter activity was suppressed by alpha B2. Coexpression of alpha B1 and alpha B2 showed that the promoter activity could be determined by the alpha B1/alpha B2 ratio. Jurkat cell extract contained PEBP2 site-binding protein(s) that cross-reacted with antimouse alpha A1 antibodies. Northern blot analysis indicated the expression of human PEBP2 alpha A, alpha B (AML1), and beta genes in Jurkat cells. Although further studies are required to determine the precise role of PEBP2 in the GM-CSF promoter activity, the present findings suggested the importance of the relative ratio of different PEBP2 isoforms in regulating the levels of the promoter activity."}
GENIAcorpus
{"project":"GENIAcorpus","denotations":[{"id":"T1","span":{"begin":36,"end":84},"obj":"protein_molecule"},{"id":"T2","span":{"begin":106,"end":139},"obj":"protein_molecule"},{"id":"T3","span":{"begin":141,"end":146},"obj":"protein_molecule"},{"id":"T4","span":{"begin":152,"end":200},"obj":"protein_molecule"},{"id":"T5","span":{"begin":202,"end":208},"obj":"protein_molecule"},{"id":"T6","span":{"begin":262,"end":301},"obj":"protein_molecule"},{"id":"T7","span":{"begin":303,"end":308},"obj":"protein_molecule"},{"id":"T8","span":{"begin":405,"end":412},"obj":"DNA_domain_or_region"},{"id":"T9","span":{"begin":417,"end":424},"obj":"DNA_domain_or_region"},{"id":"T10","span":{"begin":439,"end":452},"obj":"protein_subunit"},{"id":"T11","span":{"begin":454,"end":461},"obj":"DNA_domain_or_region"},{"id":"T12","span":{"begin":469,"end":484},"obj":"DNA_family_or_group"},{"id":"T13","span":{"begin":488,"end":503},"obj":"DNA_domain_or_region"},{"id":"T14","span":{"begin":586,"end":594},"obj":"protein_subunit"},{"id":"T15","span":{"begin":599,"end":606},"obj":"DNA_domain_or_region"},{"id":"T16","span":{"begin":625,"end":633},"obj":"protein_subunit"},{"id":"T17","span":{"begin":638,"end":646},"obj":"protein_subunit"},{"id":"T18","span":{"begin":652,"end":659},"obj":"protein_subunit"},{"id":"T19","span":{"begin":702,"end":717},"obj":"DNA_domain_or_region"},{"id":"T20","span":{"begin":719,"end":724},"obj":"protein_molecule"},{"id":"T21","span":{"begin":725,"end":733},"obj":"protein_subunit"},{"id":"T22","span":{"begin":735,"end":743},"obj":"protein_subunit"},{"id":"T23","span":{"begin":749,"end":766},"obj":"protein_family_or_group"},{"id":"T24","span":{"begin":777,"end":782},"obj":"protein_molecule"},{"id":"T25","span":{"begin":799,"end":804},"obj":"DNA_domain_or_region"},{"id":"T26","span":{"begin":805,"end":811},"obj":"protein_molecule"},{"id":"T27","span":{"begin":822,"end":827},"obj":"protein_molecule"},{"id":"T28","span":{"begin":828,"end":836},"obj":"protein_subunit"},{"id":"T29","span":{"begin":841,"end":849},"obj":"protein_subunit"},{"id":"T30","span":{"begin":881,"end":887},"obj":"protein_molecule"},{"id":"T31","span":{"begin":1047,"end":1064},"obj":"other_name"},{"id":"T32","span":{"begin":1083,"end":1091},"obj":"protein_subunit"},{"id":"T33","span":{"begin":1109,"end":1117},"obj":"protein_subunit"},{"id":"T34","span":{"begin":1122,"end":1130},"obj":"protein_subunit"},{"id":"T35","span":{"begin":1147,"end":1164},"obj":"other_name"},{"id":"T36","span":{"begin":1192,"end":1200},"obj":"protein_subunit"},{"id":"T37","span":{"begin":1200,"end":1209},"obj":"protein_subunit"},{"id":"T38","span":{"begin":1217,"end":1236},"obj":"cell_component"},{"id":"T39","span":{"begin":1247,"end":1252},"obj":"protein_molecule"},{"id":"T40","span":{"begin":1301,"end":1310},"obj":"protein_family_or_group"},{"id":"T41","span":{"begin":1311,"end":1319},"obj":"protein_subunit"},{"id":"T42","span":{"begin":1332,"end":1354},"obj":"other_name"},{"id":"T43","span":{"begin":1389,"end":1394},"obj":"protein_molecule"},{"id":"T44","span":{"begin":1404,"end":1411},"obj":"protein_subunit"},{"id":"T45","span":{"begin":1413,"end":1417},"obj":"DNA_domain_or_region"},{"id":"T46","span":{"begin":1424,"end":1434},"obj":"DNA_domain_or_region"},{"id":"T47","span":{"begin":1438,"end":1450},"obj":"cell_line"},{"id":"T48","span":{"begin":1523,"end":1528},"obj":"protein_molecule"},{"id":"T49","span":{"begin":1536,"end":1542},"obj":"protein_molecule"},{"id":"T50","span":{"begin":1543,"end":1560},"obj":"other_name"},{"id":"T51","span":{"begin":1643,"end":1648},"obj":"protein_molecule"},{"id":"T52","span":{"begin":1690,"end":1707},"obj":"other_name"}],"text":"Positive and negative regulation of granulocyte-macrophage colony-stimulating factor promoter activity by AML1-related transcription factor, PEBP2.\nThe granulocyte-macrophage colony-stimulating factor (GM-CSF) gene promoter contains a consensus sequence for the polyomavirus enhancer binding-protein 2 (PEBP2) transcription factor, which consists of alpha and beta subunits. There are at least two genes, alpha A and alpha B, encoding the alpha subunit. alpha B is the mouse homologue of human AML1 gene detected at the breakpoints of t(8;21) and t(3;21) myeloid leukemias. We examined alpha A1 (an alpha A-gene product) and alpha B1 and alpha B2 (two alpha B-encoded isomers) for their effects on the GM-CSF promoter. PEBP2 alpha A1, alpha B1, and alpha B2 proteins bound the PEBP2 site within the mouse GM-CSF promoter. PEBP2 alpha A1 and alpha B1 enhanced the expression of the GM-CSF promoter-driven reporter plasmid in unstimulated and 12-O-tetradecanoylphorbol 13-acetate/phytohemagglutinin-stimulated human Jurkat T cells. In contrast, the promoter activity was suppressed by alpha B2. Coexpression of alpha B1 and alpha B2 showed that the promoter activity could be determined by the alpha B1/alpha B2 ratio. Jurkat cell extract contained PEBP2 site-binding protein(s) that cross-reacted with antimouse alpha A1 antibodies. Northern blot analysis indicated the expression of human PEBP2 alpha A, alpha B (AML1), and beta genes in Jurkat cells. Although further studies are required to determine the precise role of PEBP2 in the GM-CSF promoter activity, the present findings suggested the importance of the relative ratio of different PEBP2 isoforms in regulating the levels of the promoter activity."}