ID:UBF1_HUMAN DESCRIPTION: RecName: Full=Nucleolar transcription factor 1; AltName: Full=Autoantigen NOR-90; AltName: Full=Upstream-binding factor 1; Short=UBF-1; FUNCTION: Recognizes the ribosomal RNA gene promoter and activates transcription mediated by RNA polymerase I through cooperative interactions with the transcription factor SL1/TIF-IB complex. It binds specifically to the upstream control element. SUBUNIT: Homodimer. Interacts with TBP. Interacts with RASL11A, TAF1A and TAF1D. Binds to IRS1 and PIK3CA (By similarity). Interacts with DHX33. INTERACTION: P01106:MYC; NbExp=2; IntAct=EBI-396235, EBI-447544; SUBCELLULAR LOCATION: Nucleus, nucleolus (By similarity). PTM: Phosphorylated and activated by PIK3CA (By similarity). SIMILARITY: Contains 6 HMG box DNA-binding domains.
The RNAfold program from the Vienna RNA Package is used to perform the secondary structure predictions and folding calculations. The estimated folding energy is in kcal/mol. The more negative the energy, the more secondary structure the RNA is likely to have.
ModBase Predicted Comparative 3D Structure on P17480
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Orthologous Genes in Other Species
Orthologies between human, mouse, and rat are computed by taking the best BLASTP hit, and filtering out non-syntenic hits. For more distant species reciprocal-best BLASTP hits are used. Note that the absence of an ortholog in the table below may reflect incomplete annotations in the other species rather than a true absence of the orthologous gene.
Gene Ontology (GO) Annotations with Structured Vocabulary
Molecular Function: GO:0000981 RNA polymerase II transcription factor activity, sequence-specific DNA binding GO:0001164 RNA polymerase I CORE element sequence-specific DNA binding GO:0001165 RNA polymerase I upstream control element sequence-specific DNA binding GO:0003677 DNA binding GO:0003682 chromatin binding GO:0003723 RNA binding GO:0005515 protein binding GO:0097110 scaffold protein binding
Biological Process: GO:0001188 RNA polymerase I transcriptional preinitiation complex assembly GO:0006351 transcription, DNA-templated GO:0006355 regulation of transcription, DNA-templated GO:0006356 regulation of transcription from RNA polymerase I promoter GO:0006357 regulation of transcription from RNA polymerase II promoter GO:0006360 transcription from RNA polymerase I promoter GO:0006361 transcription initiation from RNA polymerase I promoter GO:0006363 termination of RNA polymerase I transcription GO:0045943 positive regulation of transcription from RNA polymerase I promoter GO:1902659 regulation of glucose mediated signaling pathway
BC042297 - Homo sapiens upstream binding transcription factor, RNA polymerase I, mRNA (cDNA clone MGC:48801 IMAGE:4509695), complete cds. AF289595 - Homo sapiens clone pp7879 unknown mRNA. X53390 - Human mRNA for upstream binding factor (hUBF). X53461 - Human mRNA for upstream binding factor (hUBF). JD338783 - Sequence 319807 from Patent EP1572962. JD270760 - Sequence 251784 from Patent EP1572962. JD372548 - Sequence 353572 from Patent EP1572962. JD362403 - Sequence 343427 from Patent EP1572962. JD362402 - Sequence 343426 from Patent EP1572962. JD381236 - Sequence 362260 from Patent EP1572962. JD423214 - Sequence 404238 from Patent EP1572962. AK291733 - Homo sapiens cDNA FLJ75058 complete cds, highly similar to Homo sapiens upstream binding transcription factor, RNA polymerase I (UBTF), mRNA. JD105043 - Sequence 86067 from Patent EP1572962. JD205745 - Sequence 186769 from Patent EP1572962. JD388590 - Sequence 369614 from Patent EP1572962. AK296917 - Homo sapiens cDNA FLJ53802 complete cds, highly similar to Nucleolar transcription factor 1. X56688 - H.sapiens mRNA autoantigen NOR-90 3'-untranslated region. AK298008 - Homo sapiens cDNA FLJ53818 complete cds, highly similar to Nucleolar transcription factor 1. X56687 - H.sapiens mRNA for autoantigen NOR-90. AK292577 - Homo sapiens cDNA FLJ77827 complete cds, highly similar to Human mRNA for upstream binding factor (hUBF). JD389592 - Sequence 370616 from Patent EP1572962. AK292518 - Homo sapiens cDNA FLJ77758 complete cds, highly similar to Homo sapiens upstream binding transcription factor, RNA polymerase I (UBTF), mRNA. JD100164 - Sequence 81188 from Patent EP1572962. JD380374 - Sequence 361398 from Patent EP1572962. AK308321 - Homo sapiens cDNA, FLJ98269. BC031423 - Homo sapiens upstream binding transcription factor, RNA polymerase I, mRNA (cDNA clone IMAGE:4341587), partial cds. M61724 - Human UBF2 transcription factor mRNA. JD172691 - Sequence 153715 from Patent EP1572962. JD137749 - Sequence 118773 from Patent EP1572962. JD382990 - Sequence 364014 from Patent EP1572962. JD343975 - Sequence 324999 from Patent EP1572962. JD271289 - Sequence 252313 from Patent EP1572962. JD458507 - Sequence 439531 from Patent EP1572962. JD458512 - Sequence 439536 from Patent EP1572962. JD458511 - Sequence 439535 from Patent EP1572962. JD056228 - Sequence 37252 from Patent EP1572962. JD458513 - Sequence 439537 from Patent EP1572962. JD458514 - Sequence 439538 from Patent EP1572962. JD056229 - Sequence 37253 from Patent EP1572962. JD317504 - Sequence 298528 from Patent EP1572962.
Biochemical and Signaling Pathways
Reactome (by CSHL, EBI, and GO)
Protein P17480 (Reactome details) participates in the following event(s):
R-HSA-73718 UBF-1 Binds rDNA Promoter R-HSA-73722 Phosphorylation of UBF-1:rDNA Promoter R-HSA-74994 Polymerase I Transcription Complex/Nascent Pre rRNA Complex pauses at the TTF-I:Sal Box R-HSA-73769 Loss of Rrn3 from RNA Polymerase I promoter escape complex R-HSA-74992 Dissociation of PTRF:Polymerase I/Nascent Pre rRNA Complex:TTF-I:Sal Box R-HSA-73739 Recruitment of Acetylated SL1 to phosUBF-1:rDNA Promoter R-HSA-74993 PTRF Binds the Polymerase I Transcription Complex/Nascent Pre rRNA Complex paused at the TTF-I:Sal Box R-HSA-74986 Elongation of pre-rRNA transcript R-HSA-427366 Transcription of intergenic spacer of the rRNA gene R-HSA-73758 Recruitment of Active RNA Polymerase I to SL1:phos.UBF-1:rDNA Promoter R-HSA-73728 RNA Polymerase I Promoter Opening R-HSA-73863 RNA Polymerase I Transcription Termination R-HSA-73772 RNA Polymerase I Promoter Escape R-HSA-73854 RNA Polymerase I Promoter Clearance R-HSA-73762 RNA Polymerase I Transcription Initiation R-HSA-73864 RNA Polymerase I Transcription R-HSA-73777 RNA Polymerase I Chain Elongation R-HSA-427413 NoRC negatively regulates rRNA expression R-HSA-74160 Gene expression (Transcription) R-HSA-5250941 Negative epigenetic regulation of rRNA expression R-HSA-212165 Epigenetic regulation of gene expression