| http://purl.uniprot.org/citations/8760361 | http://www.w3.org/1999/02/22-rdf-syntax-ns#type | http://purl.uniprot.org/core/Journal_Citation |
| http://purl.uniprot.org/citations/8760361 | http://www.w3.org/2000/01/rdf-schema#comment | "The Y box is a conserved sequence in the promoter of major histocompatibility complex (MHC) class II genes, which contains a CCAAT sequence (CCAAT box). Previously, we partially purified the DNA-binding protein that recognizes the Y box of the I-A beta gene and showed that it consisted of two components (factors A and B) both of which were necessary for optimal DNA binding. The genes for the heteromeric protein NF-Y (NF-YA and NF-YB), which binds to the I-E alpha Y box have been cloned. We subsequently isolated the genes for NF-YA and NF-YB using oligonucleotides designed from the published sequences. NF-YA and NF-YB were tested for binding to the I-A beta and I-E alpha Y boxes. While neither NF-YA or NF-YB alone bound to the Y box, when the components were mixed the complex bound to the I-A beta Y box with high affinity. Moreover, NF-YA and NF-YB could be complemented for binding to DNA by factor B or factor A, respectively. These results suggest that the active binding protein is NF-YA in factor A extracts and NF-YB in factor B extracts. Finally, antibodies against NF-YA and NF-YB were shown to induce a supershift when nuclear extracts were added to the double-stranded oligodeoxynucleotide covering the Y box of the I-A beta gene. Antisense expression constructs of both NF-YA and NF-YB were made and their effect on expression from the I-A beta promoter was tested. Either antisense construction, when transfected into cells, lowered the expression of a reporter gene linked to the I-A beta promoter. This study provides direct evidence of the identification of NF-YA and NF-YB as the previously described factors A and B. Moreover, these results strongly implicate NF-Y in the expression of the MHC class II gene I-A beta."xsd:string |
| http://purl.uniprot.org/citations/8760361 | http://purl.org/dc/terms/identifier | "doi:10.1042/bj3170771"xsd:string |
| http://purl.uniprot.org/citations/8760361 | http://purl.uniprot.org/core/author | "Maki R.A."xsd:string |
| http://purl.uniprot.org/citations/8760361 | http://purl.uniprot.org/core/author | "Celada A."xsd:string |
| http://purl.uniprot.org/citations/8760361 | http://purl.uniprot.org/core/author | "McKercher S.R."xsd:string |
| http://purl.uniprot.org/citations/8760361 | http://purl.uniprot.org/core/date | "1996"xsd:gYear |
| http://purl.uniprot.org/citations/8760361 | http://purl.uniprot.org/core/name | "Biochem J"xsd:string |
| http://purl.uniprot.org/citations/8760361 | http://purl.uniprot.org/core/pages | "771-777"xsd:string |
| http://purl.uniprot.org/citations/8760361 | http://purl.uniprot.org/core/title | "Identification of the transcription factors NF-YA and NF-YB as factors A and B that bound to the promoter of the major histocompatibility complex class II gene I-A beta."xsd:string |
| http://purl.uniprot.org/citations/8760361 | http://purl.uniprot.org/core/volume | "317"xsd:string |
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