UBTF

UBTF
Available structures
PDB	Ortholog search: PDBe RCSB
List of PDB id codes
	1K99, 1L8Y, 1L8Z, 2HDZ
Identifiers
Aliases	UBTF, NOR-90, UBF, UBF-1, UBF1, UBF2, upstream binding transcription factor, RNA polymerase I, CONDBA, upstream binding transcription factor
External IDs	OMIM: 600673; MGI: 98512; HomoloGene: 7970; GeneCards: UBTF; OMA:UBTF - orthologs
Gene location (Human)
Chr.	Chromosome 17 (human)
End	44,221,626 bp
Gene location (Mouse)
Chr.	Chromosome 11 (mouse)
End	102,210,568 bp
RNA expression pattern
	Top expressed in
	sural nerve; ; ganglionic eminence; ; granulocyte; ; right lobe of thyroid gland; ; ventricular zone; ; right coronary artery; ; right hemisphere of cerebellum; ; left lobe of thyroid gland; ; ectocervix; ; body of uterus;
	Top expressed in
	ventricular zone; ; neural layer of retina; ; genital tubercle; ; tail of embryo; ; lip; ; dentate gyrus of hippocampal formation granule cell; ; granulocyte; ; superior frontal gyrus; ; tibiofemoral joint; ; thymus;
	More reference expression data
	; ;
	More reference expression data
Gene ontology
Molecular function	DNA binding; RNA polymerase I core promoter sequence-specific DNA binding; RNA polymerase I cis-regulatory region sequence-specific DNA binding; protein binding; chromatin binding; RNA binding; scaffold protein binding; DNA-binding transcription factor activity, RNA polymerase II-specific;
Cellular component	nucleolus; nucleus; nucleoplasm; fibrillar center;
Biological process	transcription initiation from RNA polymerase I promoter; transcription by RNA polymerase I; termination of RNA polymerase I transcription; positive regulation of transcription by RNA polymerase I; transcription elongation from RNA polymerase I promoter; regulation of glucose mediated signaling pathway; regulation of transcription, DNA-templated; transcription, DNA-templated; regulation of transcription by RNA polymerase I; RNA polymerase I preinitiation complex assembly; regulation of transcription by RNA polymerase II;
	Sources:Amigo / QuickGO
Orthologs
	7343
	21429
	ENSG00000108312
	ENSMUSG00000020923
	P17480
	P25976
	NM_001076683; NM_001076684; NM_014233
NM_001044383; NM_011551; NM_001302954; NM_001302955; NM_001362544;
	NM_001362545; NM_001362547; NM_001362548; NM_001362549; NM_001362550; NM_001362551; NM_001362552
	NP_001070151; NP_001070152; NP_055048
	n/a
	Wikidata
View/Edit Human	View/Edit Mouse

Upstream binding transcription factor (UBTF), or upstream binding factor (UBF), is a protein that in humans is encoded by the UBTF gene.^[5]^[6]

Gene

In humans, the UBTF gene encodes a 764 amino acid protein and is located on chromosome 17 at position q21.31.^[7]^[8] In mice, UBTF is found on chromosome 11 ^{[citation needed]}.

Structure

UBTF contains six high mobility group boxes (HMG-boxes) that allow it to bind to DNA.^[9] UBTF also contains a hyperacidic carboxy-terminal domain, which is required for transcription activation, and a helix-gap-helix dimersation motif (as UBTF is thought to often act as a dimer).^[9]^[10]

In humans, alternative splicing can give rise to either the UBTF1 or UBTF2 isoform which are 97 kD and 94 kD in mass, respectively ^[11] UBTF2 lacks exon 8 of the larger UBTF1 isoform which encodes a portion of HMG Box 2.^[12]

Function

UBTF is a transcription factor required for expression of the 18S, 5.8S, and 28S ribosomal RNAs, along with SL1 (a complex of TBP (MIM 600075) and three TBP-associated factors or 'TAFs')^{[citation needed]}.

UBTF is a nucleolar phosphoprotein with both DNA binding and transactivation domains. Sequence-specific DNA binding to the core and upstream control elements of the human rRNA promoter is mediated through several HMG boxes.^[13] [supplied by OMIM]^[6]

In vertebrates, UBTF plays a crucial role in maintaining rDNA chromatin in a euchromatic state. Consequently, UBTF binding is one of the characteristics of euchromatic, transcriptionally active rDNA repeats.^[14]

UBTF2 has been found to regulate mRNA transcription by RNA Polymerase II.^[9]

Clinical significance

UBTF may have a role in cancer. Increased UBF binding to rDNA has been observed in cancer cells and is associated with elevated rDNA transcription and tumor cell survival.^[15] Supporting this, it was found that cisplatin, a chemotherapy drug, can displace UBTF from rDNA, causing a reduction in rRNA synthesis and subsequent p53-independent apoptosis.^[16]

Additionally, UBTF has been found to facilitate melanoma by promoting GIT1 expression which, in turn, activates MEK1/2-ERK1/2 signaling pathways.^[17]

UBTF may also be important to neurological functioning. A de novo gain-of-function mutation to UBTF (c.628G>A) has been found to cause developmental neuroregression.^[12] This mutation replaces glutamic acid with lysine at position 210 of the polypeptide chain (p.Glu210Lys) which results in a stronger UBTF interaction with DNA.^[18] In 2022, another likely pathogenic variant (Gln203Arg) was identified in a proband with severe early-onset developmental delay..^[19]

Interactions

UBTF has been shown to interact with:

References

^ ^a ^b ^c GRCh38: Ensembl release 89: ENSG00000108312 – Ensembl, May 2017
^ ^a ^b ^c GRCm38: Ensembl release 89: ENSMUSG00000020923 – Ensembl, May 2017
^ "Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
^ "Mouse PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
^ Matera AG, Wu W, Imai H, O'Keefe CL, Chan EK (May 1997). "Molecular cloning of the RNA polymerase I transcription factor hUBF/NOR-90 (UBTF) gene and localization to 17q21.3 by fluorescence in situ hybridization and radiation hybrid mapping". Genomics. 41 (1): 135–8. doi:10.1006/geno.1997.4647. PMID 9126496.
^ ^a ^b "Entrez Gene: UBTF upstream binding transcription factor, RNA polymerase I".
^ Jones KA, Black DM, Griffiths BL, Solomon E (Dec 1995). "Localization of the Human RNA Polymerase I Transcription Factor Gene (UBTF) to the D17S183 Locus on Chromosome 17q21 and Construction of a Long-Range Restriction Map of the Region". Genomics. 30 (3): 602–4. doi:10.1006/geno.1995.1283. PMID 8825649.
^ Edvardson S, Nicolae CM, Agrawal PB, Mignot C, Payne K, et al. (Aug 2017). "Heterozygous De Novo UBTF Gain-of-Function Variant Is Associated with Neurodegeneration in Childhood". American Journal of Human Genetics. 101 (2): 267–73. doi:10.1016/j.ajhg.2017.07.002. PMC 5544390. PMID 28777933.
^ ^a ^b ^c Sanij E, Diesch J, Lesmana A, Poortinga G, Hein N, et al. (Feb 2015). "A novel role for the Pol I transcription factor UBTF in maintaining genome stability through the regulation of highly transcribed Pol II genes". Genome Res. 25 (2): 201–12. doi:10.1101/gr.176115.114. PMC 4315294. PMID 25452314.
^ Schnapp G, Santori F, Carles C, Riva M, Grummt I (Jan 1994). "The HMG box-containing nucleolar transcription factor UBF interacts with a specific subunit of RNA polymerase I". EMBO J. 13 (1): 190–9. doi:10.1002/j.1460-2075.1994.tb06248.x. PMC 394792. PMID 394792.
^ Bell SP, Learned RM, Jantzen HM, Tjian R (Sep 1988). "Functional cooperativity between transcription factors UBF1 and SL1 mediates human ribosomal RNA synthesis". Science. 241 (4870): 1192–7. Bibcode:1988Sci...241.1192B. doi:10.1126/science.3413483. PMID 3413483.
^ ^a ^b Toro C, Hori RT, Malicdan MC, Tifft CJ, Goldstein A, et al. (Feb 2018). "A recurrent de novo missense mutation in UBTF causes developmental neuroregression". EMBO J. 27 (4): 691–705. doi:10.1093/hmg/ddx435. PMC 5886272. PMID 29300972.
^ Jantzen HM, Admon A, Bell SP, Tjian R (Apr 1990). "Nucleolar transcription factor hUBF contains a DNA-binding motif with homology to HMG proteins". Nature. 344 (6269): 830–6. Bibcode:1990Natur.344..830J. doi:10.1038/344830a0. PMID 2330041. S2CID 4280039.
^ Sanij E, Hannan R (Aug 2009). "The role of UBF in regulating the structure and dynamics of transcriptionally active rDNA chromatin". Epigenetics. 4 (6): 374–82. doi:10.4161/epi.4.6.9449. PMID 19717978. S2CID 30922645.
^ Diesch J, Bywater MJ, Sanij E, Cameron DP, Schierding W, et al. (Jan 2019). "Changes in long-range rDNA-genomic interactions associate with altered RNA polymerase II gene programs during malignant transformation". Communications Biology. 2: e39(2019). doi:10.1038/s42003-019-0284-y. PMC 6349880. PMID 30701204. S2CID 210151479.
^ Hamdane N, Herdman C, Mars J, Stefanovsky V, Tremblay MG, Moss T (Sep 2015). "Depletion of the cisplatin targeted HMGB-box factor UBF selectively induces p53-independent apoptotic death in transformed cells". Oncotarget. 6 (29): 27519–27536. doi:10.18632/oncotarget.4823. PMC 4695006. PMID 26317157.
^ Zhang J, Zhang J, Liu W, Ge R, Gao T, et al. (Oct 2021). "UBTF facilitates melanoma progression via modulating MEK1/2-ERK1/2 signalling pathways by promoting GIT1 transcription". Cancer Cell International. 21 (1): 543(2021). doi:10.1186/s12935-021-02237-8. PMC 8522148. PMID 34663332.
^ Edvardson S, Nicolae CM, Agrawal PB, Mignot C, Payne K, et al. (Aug 2017). "Heterozygous De Novo UBTF Gain-of-Function Variant Is Associated with Neurodegeneration in Childhood". American Journal of Human Genetics. 101 (2): 267–73. doi:10.1016/j.ajhg.2017.07.002. PMC 5544390. PMID 28777933.
^ Tinker RJ, Guess T, Rinker DC, Sheehan JH, Lubarsky D, et al. (Dec 2022). "A novel, likely pathogenic variant in UBTF-related neurodegeneration with brain atrophy is associated with a severe divergent neurodevelopmental phenotype". Molecular Genetics & Genomic Medicine. 10 (12): e2054. doi:10.1002/mgg3.2054. PMC 9747545. PMID 36106513.
^ Voit R, Kuhn A, Sander EE, Grummt I (July 1995). "Activation of mammalian ribosomal gene transcription requires phosphorylation of the nucleolar transcription factor UBF". Nucleic Acids Res. 23 (14): 2593–9. doi:10.1093/nar/23.14.2593. PMC 307079. PMID 7651819.
^ Hannan KM, Hannan RD, Smith SD, Jefferson LS, Lun M, Rothblum LI (October 2000). "Rb and p130 regulate RNA polymerase I transcription: Rb disrupts the interaction between UBF and SL-1". Oncogene. 19 (43): 4988–99. doi:10.1038/sj.onc.1203875. PMID 11042686.
^ Voit R, Grummt I (November 2001). "Phosphorylation of UBF at serine 388 is required for interaction with RNA polymerase I and activation of rDNA transcription". Proc. Natl. Acad. Sci. U.S.A. 98 (24): 13631–6. Bibcode:2001PNAS...9813631V. doi:10.1073/pnas.231071698. PMC 61092. PMID 11698641.
^ Zhai W, Comai L (August 2000). "Repression of RNA polymerase I transcription by the tumor suppressor p53". Mol. Cell. Biol. 20 (16): 5930–8. doi:10.1128/mcb.20.16.5930-5938.2000. PMC 86070. PMID 10913176.
^ Lin CY, Tuan J, Scalia P, Bui T, Comai L (Dec 2002). "The cell cycle regulatory factor TAF1 stimulates ribosomal DNA transcription by binding to the activator UBF". Curr. Biol. 12 (24): 2142–6. doi:10.1016/s0960-9822(02)01389-1. PMID 12498690. S2CID 16352280.

Chan EK, Imai H, Hamel JC, Tan EM (1991). "Human autoantibody to RNA polymerase I transcription factor hUBF. Molecular identity of nucleolus organizer region autoantigen NOR-90 and ribosomal RNA transcription upstream binding factor". J. Exp. Med. 174 (5): 1239–44. doi:10.1084/jem.174.5.1239. PMC 2119007. PMID 1940801.
Jantzen HM, Admon A, Bell SP, Tjian R (1990). "Nucleolar transcription factor hUBF contains a DNA-binding motif with homology to HMG proteins". Nature. 344 (6269): 830–6. Bibcode:1990Natur.344..830J. doi:10.1038/344830a0. PMID 2330041. S2CID 4280039.
Bell SP, Learned RM, Jantzen HM, Tjian R (1988). "Functional cooperativity between transcription factors UBF1 and SL1 mediates human ribosomal RNA synthesis". Science. 241 (4870): 1192–7. Bibcode:1988Sci...241.1192B. doi:10.1126/science.3413483. PMID 3413483.
Voit R, Kuhn A, Sander EE, Grummt I (1995). "Activation of mammalian ribosomal gene transcription requires phosphorylation of the nucleolar transcription factor UBF". Nucleic Acids Res. 23 (14): 2593–9. doi:10.1093/nar/23.14.2593. PMC 307079. PMID 7651819.
Hempel WM, Cavanaugh AH, Hannan RD, Taylor L, Rothblum LI (1996). "The species-specific RNA polymerase I transcription factor SL-1 binds to upstream binding factor". Mol. Cell. Biol. 16 (2): 557–63. doi:10.1128/MCB.16.2.557. PMC 231034. PMID 8552083.
Hanada K, Song CZ, Yamamoto K, Yano K, Maeda Y, Yamaguchi K, Muramatsu M (1996). "RNA polymerase I associated factor 53 binds to the nucleolar transcription factor UBF and functions in specific rDNA transcription". EMBO J. 15 (9): 2217–26. doi:10.1002/j.1460-2075.1996.tb00575.x. PMC 450146. PMID 8641287.
Pluta AF, Earnshaw WC (1996). "Specific interaction between human kinetochore protein CENP-C and a nucleolar transcriptional regulator". J. Biol. Chem. 271 (31): 18767–74. doi:10.1074/jbc.271.31.18767. PMID 8702533.
Whitehead CM, Winkfein RJ, Fritzler MJ, Rattner JB (1997). "ASE-1: a novel protein of the fibrillar centres of the nucleolus and nucleolus organizer region of mitotic chromosomes". Chromosoma. 106 (8): 493–502. doi:10.1007/s004120050271. PMID 9426281. S2CID 10684078.
Voit R, Hoffmann M, Grummt I (1999). "Phosphorylation by G1-specific cdk-cyclin complexes activates the nucleolar transcription factor UBF". EMBO J. 18 (7): 1891–9. doi:10.1093/emboj/18.7.1891. PMC 1171274. PMID 10202152.
Liu CJ, Wang H, Lengyel P (1999). "The interferon-inducible nucleolar p204 protein binds the ribosomal RNA-specific UBF1 transcription factor and inhibits ribosomal RNA transcription". EMBO J. 18 (10): 2845–54. doi:10.1093/emboj/18.10.2845. PMC 1171365. PMID 10329630.
Hannan KM, Hannan RD, Smith SD, Jefferson LS, Lun M, Rothblum LI (2000). "Rb and p130 regulate RNA polymerase I transcription: Rb disrupts the interaction between UBF and SL-1". Oncogene. 19 (43): 4988–99. doi:10.1038/sj.onc.1203875. PMID 11042686.
Kalousek I, Krízková P (2000). "Lymphocyte mitogenic transformation is accompanied by phosphorylation of the nucleolar transcription factor UBF". Cell. Mol. Biol. (Noisy-le-grand). 46 (7): 1163–71. PMID 11075946.
Pelletier G, Stefanovsky VY, Faubladier M, Hirschler-Laszkiewicz I, Savard J, Rothblum LI, Côté J, Moss T (2000). "Competitive recruitment of CBP and Rb-HDAC regulates UBF acetylation and ribosomal transcription". Mol. Cell. 6 (5): 1059–66. doi:10.1016/S1097-2765(00)00104-0. PMID 11106745.
Miller G, Panov KI, Friedrich JK, Trinkle-Mulcahy L, Lamond AI, Zomerdijk JC (2001). "hRRN3 is essential in the SL1-mediated recruitment of RNA Polymerase I to rRNA gene promoters". EMBO J. 20 (6): 1373–82. doi:10.1093/emboj/20.6.1373. PMC 145519. PMID 11250903.
Seither P, Iben S, Thiry M, Grummt I (2001). "PAF67, a novel protein that is associated with the initiation-competent form of RNA polymerase I". Biol. Chem. 382 (8): 1163–70. doi:10.1515/BC.2001.146. PMID 11592397. S2CID 28819190.
Voit R, Grummt I (2001). "Phosphorylation of UBF at serine 388 is required for interaction with RNA polymerase I and activation of rDNA transcription". Proc. Natl. Acad. Sci. U.S.A. 98 (24): 13631–6. Bibcode:2001PNAS...9813631V. doi:10.1073/pnas.231071698. PMC 61092. PMID 11698641.
Stefanovsky VY, Pelletier G, Hannan R, Gagnon-Kugler T, Rothblum LI, Moss T (2001). "An immediate response of ribosomal transcription to growth factor stimulation in mammals is mediated by ERK phosphorylation of UBF". Mol. Cell. 8 (5): 1063–73. doi:10.1016/S1097-2765(01)00384-7. PMID 11741541.
Andersen JS, Lyon CE, Fox AH, Leung AK, Lam YW, Steen H, Mann M, Lamond AI (2002). "Directed proteomic analysis of the human nucleolus". Curr. Biol. 12 (1): 1–11. doi:10.1016/S0960-9822(01)00650-9. PMID 11790298. S2CID 14132033.
Dühr S, Torres-Montaner A, Astola A, García-Cozar FJ, Pendón C, Bolívar J, Valdivia MM (2001). "Molecular analysis of the 5' region of human ribosomal transcription factor UBF". DNA Seq. 12 (4): 267–72. doi:10.3109/10425170109025001. PMID 11916260. S2CID 11173681.

This article on a gene on human chromosome 17 is a stub. You can help Wikipedia by expanding it.

[refGRCh38Ensembl-1] GRCh38: Ensembl release 89: ENSG00000108312 – Ensembl, May 2017

[refGRCm38Ensembl-2] GRCm38: Ensembl release 89: ENSMUSG00000020923 – Ensembl, May 2017

[3] "Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.

[4] "Mouse PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.

[pmid9126496-5] Matera AG, Wu W, Imai H, O'Keefe CL, Chan EK (May 1997). "Molecular cloning of the RNA polymerase I transcription factor hUBF/NOR-90 (UBTF) gene and localization to 17q21.3 by fluorescence in situ hybridization and radiation hybrid mapping". Genomics. 41 (1): 135–8. doi:10.1006/geno.1997.4647. PMID 9126496.

[entrez-6] "Entrez Gene: UBTF upstream binding transcription factor, RNA polymerase I".

[7] Jones KA, Black DM, Griffiths BL, Solomon E (Dec 1995). "Localization of the Human RNA Polymerase I Transcription Factor Gene (UBTF) to the D17S183 Locus on Chromosome 17q21 and Construction of a Long-Range Restriction Map of the Region". Genomics. 30 (3): 602–4. doi:10.1006/geno.1995.1283. PMID 8825649.

[8] Edvardson S, Nicolae CM, Agrawal PB, Mignot C, Payne K, et al. (Aug 2017). "Heterozygous De Novo UBTF Gain-of-Function Variant Is Associated with Neurodegeneration in Childhood". American Journal of Human Genetics. 101 (2): 267–73. doi:10.1016/j.ajhg.2017.07.002. PMC 5544390. PMID 28777933.

[pmid25452314-9] Sanij E, Diesch J, Lesmana A, Poortinga G, Hein N, et al. (Feb 2015). "A novel role for the Pol I transcription factor UBTF in maintaining genome stability through the regulation of highly transcribed Pol II genes". Genome Res. 25 (2): 201–12. doi:10.1101/gr.176115.114. PMC 4315294. PMID 25452314.

[pmid394792-10] Schnapp G, Santori F, Carles C, Riva M, Grummt I (Jan 1994). "The HMG box-containing nucleolar transcription factor UBF interacts with a specific subunit of RNA polymerase I". EMBO J. 13 (1): 190–9. doi:10.1002/j.1460-2075.1994.tb06248.x. PMC 394792. PMID 394792.

[pmid3413483-11] Bell SP, Learned RM, Jantzen HM, Tjian R (Sep 1988). "Functional cooperativity between transcription factors UBF1 and SL1 mediates human ribosomal RNA synthesis". Science. 241 (4870): 1192–7. Bibcode:1988Sci...241.1192B. doi:10.1126/science.3413483. PMID 3413483.

[pmid29300972-12] Toro C, Hori RT, Malicdan MC, Tifft CJ, Goldstein A, et al. (Feb 2018). "A recurrent de novo missense mutation in UBTF causes developmental neuroregression". EMBO J. 27 (4): 691–705. doi:10.1093/hmg/ddx435. PMC 5886272. PMID 29300972.

[pmid2330041-13] Jantzen HM, Admon A, Bell SP, Tjian R (Apr 1990). "Nucleolar transcription factor hUBF contains a DNA-binding motif with homology to HMG proteins". Nature. 344 (6269): 830–6. Bibcode:1990Natur.344..830J. doi:10.1038/344830a0. PMID 2330041. S2CID 4280039.

[pmid19717978-14] Sanij E, Hannan R (Aug 2009). "The role of UBF in regulating the structure and dynamics of transcriptionally active rDNA chromatin". Epigenetics. 4 (6): 374–82. doi:10.4161/epi.4.6.9449. PMID 19717978. S2CID 30922645.

[15] Diesch J, Bywater MJ, Sanij E, Cameron DP, Schierding W, et al. (Jan 2019). "Changes in long-range rDNA-genomic interactions associate with altered RNA polymerase II gene programs during malignant transformation". Communications Biology. 2: e39(2019). doi:10.1038/s42003-019-0284-y. PMC 6349880. PMID 30701204. S2CID 210151479.

[pmid26317157-16] Hamdane N, Herdman C, Mars J, Stefanovsky V, Tremblay MG, Moss T (Sep 2015). "Depletion of the cisplatin targeted HMGB-box factor UBF selectively induces p53-independent apoptotic death in transformed cells". Oncotarget. 6 (29): 27519–27536. doi:10.18632/oncotarget.4823. PMC 4695006. PMID 26317157.

[17] Zhang J, Zhang J, Liu W, Ge R, Gao T, et al. (Oct 2021). "UBTF facilitates melanoma progression via modulating MEK1/2-ERK1/2 signalling pathways by promoting GIT1 transcription". Cancer Cell International. 21 (1): 543(2021). doi:10.1186/s12935-021-02237-8. PMC 8522148. PMID 34663332.

[18] Edvardson S, Nicolae CM, Agrawal PB, Mignot C, Payne K, et al. (Aug 2017). "Heterozygous De Novo UBTF Gain-of-Function Variant Is Associated with Neurodegeneration in Childhood". American Journal of Human Genetics. 101 (2): 267–73. doi:10.1016/j.ajhg.2017.07.002. PMC 5544390. PMID 28777933.

[pmid36106513-19] Tinker RJ, Guess T, Rinker DC, Sheehan JH, Lubarsky D, et al. (Dec 2022). "A novel, likely pathogenic variant in UBTF-related neurodegeneration with brain atrophy is associated with a severe divergent neurodevelopmental phenotype". Molecular Genetics & Genomic Medicine. 10 (12): e2054. doi:10.1002/mgg3.2054. PMC 9747545. PMID 36106513.

[pmid7651819-20] Voit R, Kuhn A, Sander EE, Grummt I (July 1995). "Activation of mammalian ribosomal gene transcription requires phosphorylation of the nucleolar transcription factor UBF". Nucleic Acids Res. 23 (14): 2593–9. doi:10.1093/nar/23.14.2593. PMC 307079. PMID 7651819.

[pmid11042686-21] Hannan KM, Hannan RD, Smith SD, Jefferson LS, Lun M, Rothblum LI (October 2000). "Rb and p130 regulate RNA polymerase I transcription: Rb disrupts the interaction between UBF and SL-1". Oncogene. 19 (43): 4988–99. doi:10.1038/sj.onc.1203875. PMID 11042686.

[pmid11698641-22] Voit R, Grummt I (November 2001). "Phosphorylation of UBF at serine 388 is required for interaction with RNA polymerase I and activation of rDNA transcription". Proc. Natl. Acad. Sci. U.S.A. 98 (24): 13631–6. Bibcode:2001PNAS...9813631V. doi:10.1073/pnas.231071698. PMC 61092. PMID 11698641.

[pmid10913176-23] Zhai W, Comai L (August 2000). "Repression of RNA polymerase I transcription by the tumor suppressor p53". Mol. Cell. Biol. 20 (16): 5930–8. doi:10.1128/mcb.20.16.5930-5938.2000. PMC 86070. PMID 10913176.

[pmid12498690-24] Lin CY, Tuan J, Scalia P, Bui T, Comai L (Dec 2002). "The cell cycle regulatory factor TAF1 stimulates ribosomal DNA transcription by binding to the activator UBF". Curr. Biol. 12 (24): 2142–6. doi:10.1016/s0960-9822(02)01389-1. PMID 12498690. S2CID 16352280.

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