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Proline Rich Homeodomain (PRH/HHEX) protein in the control of haematopoiesis and myeloid cell proliferation and its potential as a therapeutic target in myeloid leukaemias and other cancers. (2013)
Book
Kershaw, R., Gaston, K., & Jayaraman, P. (2013). Proline Rich Homeodomain (PRH/HHEX) protein in the control of haematopoiesis and myeloid cell proliferation and its potential as a therapeutic target in myeloid leukaemias and other cancers. In S. Douglas (Ed.), Myeloid cells: biology & regulation, role in cancer progression and potential implications for therapyNew York: NOVA Publishers

The regulation of human papillomavirus gene expression by the E2 protein: keeping a finger in every pie (2012)
Book Chapter
Graham, S. V., & Gaston, K. L. (2012). The regulation of human papillomavirus gene expression by the E2 protein: keeping a finger in every pie. In K. Gaston (Ed.), Small DNA tumour viruses, 37--53. Caister Academic Press

The human papillomavirus (HPV) genome is around 8000 base pairs in length and it encodes only eight proteins, a limited number of protein isoforms and no known microRNAs. Despite this relative paucity of genes and gene products these viruses are high... Read More

Dasatinib inhibits leukaemic cell survival by decreasing PRH/Hhex phosphorylation resulting in increased repression of VEGF signalling genes (2012)
Journal Article
Noy, P., Gaston, K., & Jayaraman, P. (2012). Dasatinib inhibits leukaemic cell survival by decreasing PRH/Hhex phosphorylation resulting in increased repression of VEGF signalling genes. Leukemia Research, 36, 1434--1437. doi:10.1016/j.leukres.2012.07.013

The PRH/Hhex transcription factor represses multiple genes in the VEGF signalling pathway (VSP) to inhibit myeloid cell survival. Protein kinase CK2 phosphorylates PRH and counteracts the inhibitory effect of this protein on cell survival by blocking... Read More

Protein kinase CK2 inactivates PRH/Hhex using multiple mechanisms to de-repress VEGF-signalling genes and promote cell survival (2012)
Journal Article
Noy, P., Sawasdichai, A., Jayaraman, P., & Gaston, K. (2012). Protein kinase CK2 inactivates PRH/Hhex using multiple mechanisms to de-repress VEGF-signalling genes and promote cell survival. Nucleic Acids Research, 40(18), 9008--9020. doi:10.1093/nar/gks687

Protein kinase CK2 promotes cell survival and the activity of this kinase is elevated in several cancers including chronic myeloid leukaemia. We have shown previously that phosphorylation of the Proline-Rich Homeodomain protein (PRH/Hhex) by CK2 inhi... Read More

The proline rich homeodomain protein PRH/Hhex forms stable oligomers that are highly resistant to denaturation (2012)
Journal Article
Shukla, A., Burton, N. M., Jayaraman, P., & Gaston, K. (2012). The proline rich homeodomain protein PRH/Hhex forms stable oligomers that are highly resistant to denaturation. PLoS ONE, 7(4), doi:10.1371/journal.pone.0035984

Background: Many transcription factors control gene expression by binding to specific DNA sequences at or near the genes that they regulate. However, some transcription factors play more global roles in the control of gene expression by altering the... Read More

Cytoplasmic RNA in undifferentiated neural stem cells: a potential label-free Raman spectral marker for assessing the undifferentiated status (2012)
Journal Article
Ghita, A., Pascut, F. C., Mather, M., Sottile, V., & Notingher, I. (2012). Cytoplasmic RNA in undifferentiated neural stem cells: a potential label-free Raman spectral marker for assessing the undifferentiated status. Analytical Chemistry, 84(7), doi:10.1021/ac202994e

Raman microspectroscopy (rms) was used to identify, image, and quantify potential molecular markers for label-free monitoring the differentiation status of live neural stem cells (NSCs) in vitro. Label-free noninvasive techniques for characterization... Read More

Small DNA tumour viruses (2012)
Book
(2012). K. Gaston (Ed.), Small DNA tumour viruses. Wymondham: Caister Academic Press

Differences in the pattern and regulation of mineral deposition in human cell lines of osteogenic and non-osteogenic origin (2011)
Journal Article
Rashidi, H., Strohbuecker, S., Jackson, L., Kalra, S., Blake, A. J., France, L., …Sottile, V. (2011). Differences in the pattern and regulation of mineral deposition in human cell lines of osteogenic and non-osteogenic origin. Cells Tissues Organs, 195(6), doi:10.1159/000329861

Bone marrow-derived mesenchymal stem cells (MSCs) are widely used as a cellular model of bone formation, and can mineralize in vitro in response to osteogenic medium (OM). It is unclear, however, whether this property is specific to cells of mesenchy... Read More

Protein flexibility directs DNA recognition by the papillomavirus E2 proteins (2010)
Journal Article
Brown, C. A., Campos-León, K., Strickland, M., Williams, C., Fairweather, V., Brady, R. L., …Gaston, K. (2011). Protein flexibility directs DNA recognition by the papillomavirus E2 proteins. Nucleic Acids Research, 39(7), 2969--2980. doi:10.1093/nar/gkq1217

Although DNA flexibility is known to play an important role in DNA–protein interactions, the importance of protein flexibility is less well understood. Here, we show that protein dynamics are important in DNA recognition using the well-characterized... Read More

DNA compaction by the higher-order assembly of PRH/Hex homeodomain protein oligomers (2010)
Journal Article
Soufi, A., Sawasdichai, A., Shukla, A., Noy, P., Dafforn, T., Smith, C., …Gaston, K. (2010). DNA compaction by the higher-order assembly of PRH/Hex homeodomain protein oligomers. Nucleic Acids Research, 38(21), 7513--7525. doi:10.1093/nar/gkq659

Protein self-organization is essential for the establishment and maintenance of nuclear architecture and for the regulation of gene expression. We have shown previously that the Proline-Rich Homeodomain protein (PRH/Hex) self-assembles to form oligom... Read More

In situ subcellular fractionation of adherent and non-adherent mammalian cells (2010)
Journal Article
Sawasdichai, A., Chen, H., Abdul Hamid, N., Jayaraman, P., & Gaston, K. (2010). In situ subcellular fractionation of adherent and non-adherent mammalian cells. Journal of Visualized Experiments, 41, doi:10.3791/1958

Protein function is intimately coupled to protein localization. Although some proteins are restricted to a specific location or subcellular compartment, many proteins are present as a freely diffusing population in free exchange with a sub-population... Read More

PRH/Hex controls cell survival through coordinate transcriptional regulation of vascular endothelial growth factor signaling (2010)
Journal Article
Noy, P., Williams, H., Sawasdichai, A., Gaston, K., & Jayaraman, P. (2010). PRH/Hex controls cell survival through coordinate transcriptional regulation of vascular endothelial growth factor signaling. Molecular and Cellular Biology, 30(9), 2120-2134. doi:10.1128/MCB.01511-09

The proline-rich homeodomain protein (PRH) plays multiple roles in the control of gene expression during embryonic development and in the adult. Vascular endothelial growth factor (VEGF) is a mitogen that stimulates cell proliferation and survival vi... Read More

The human papillomavirus E7-E2 interaction mechanism in vitro reveals a finely turned system for modulating available E7 and E2 proteins (2009)
Journal Article
Smal, C., Wetzler, D. E., Dantur, K. I., Chemes, L. B., Garcia-Alai, M. M., Dellarole, M., …de Prat Gay, G. (2009). The human papillomavirus E7-E2 interaction mechanism in vitro reveals a finely turned system for modulating available E7 and E2 proteins. Biochemistry, 48(50), 11939-11949. doi:10.1021/bi901415k

Transcription of the human papillomavirus E7 oncoprotein is negatively controlled by the viral E2 protein, and loss of this repression leads to irreversible transformation and carcinogenesis. Here we show that interaction of the HPV16 E7 protein with... Read More

CK2 phosphorylation of the PRH/Hex homeodomain functions as a reversible switch for DNA binding (2009)
Journal Article
Soufi, A., Noy, P., Buckle, M., Sawasdichai, A., Gaston, K., & Jayaraman, P. (2009). CK2 phosphorylation of the PRH/Hex homeodomain functions as a reversible switch for DNA binding. Nucleic Acids Research, 37(10), 3288-3300. doi:10.1093/nar/gkp197

The proline-rich homeodomain protein (PRH/Hex) regulates transcription by binding to specific DNA sequences and regulates mRNA transport by binding to translation initiation factor eIF4E. Protein kinase CK2 plays multiple roles in the regulation of g... Read More

The regulation of cell proliferation by the papillomavirus early proteins (2009)
Journal Article
Abdul Hamid, N., Brown, C., & Gaston, K. (2009). The regulation of cell proliferation by the papillomavirus early proteins. Cellular and Molecular Life Sciences, 66(10), 1700-1717. doi:10.1007/s00018-009-8631-7

The human papillomavirus (HPV) E6 and E7 oncogenes have direct effects on host cell proliferation. The viral E2 protein regulates transcription of E6 and E7 and thereby has an indirect effect on cell proliferation. In HPV-induced tumours, misappropri... Read More

The PRH/Hex repressor protein causes nuclear retention of Groucho/TLE co-repressors (2008)
Journal Article
Desjobert, C., Noy, P., Swingler, T., Williams, H., Gaston, K., & Jayaraman, P. (2009). The PRH/Hex repressor protein causes nuclear retention of Groucho/TLE co-repressors. BBA - Biomembranes, 417(1), 121-132. doi:10.1042/BJ20080872

The PRH (proline-rich homeodomain) [also known as Hex (haematopoietically expressed homeobox)] protein is a transcription factor that functions as an important regulator of vertebrate development and many other processes in the adult including haemat... Read More

DNA wrapping and distortion by an oligomeric homeodomain protein (2008)
Journal Article
Williams, H., Jayaraman, P., & Gaston, K. (2008). DNA wrapping and distortion by an oligomeric homeodomain protein. Journal of Molecular Biology, 383, 10-23. doi:10.1016/j.jmb.2008.08.004

Many transcription factors alter DNA or chromatin structure. Changes in chromatin structure are often brought about by the recruitment of chromatin-binding proteins, chromatin-modifying proteins, or other transcription co-activator or co-repressor pr... Read More

The papillomavirus E2 DNA binding domain (2008)
Journal Article
de Prat-Gay, G., Gaston, K., & Cicero, D. O. (2008). The papillomavirus E2 DNA binding domain. Frontiers in Bioscience, 13, 6006-6021. doi:10.2741/3132

The DNA binding domain of the E2 master regulator from papillomaviruses is the primary effector for most the essential activities controlled by this protein. In this review we focus on the properties of the DNA binding domain of human papillomavirus... Read More

p53 represses human papillomavirus type 16 DNA replication via the viral E2 protein (2008)
Journal Article
Brown, C., Kowalczyk, A. M., Taylor, E. R., Morgan, I. M., & Gaston, K. (2008). p53 represses human papillomavirus type 16 DNA replication via the viral E2 protein. Virology Journal, 5, doi:10.1186/1743-422X-5-5

Background. Human papillomavirus (HPV) DNA replication can be inhibited by the cellular tumour suppressor protein p53. However, the mechanism through which p53 inhibits viral replication and the role that this might play in the HPV life cycle are not... Read More

Comprehensive comparison of the interaction of the E2 master regulator with its cognate target DNA sites in 73 human papillomavirus types by sequence statistics (2007)
Journal Article
Sánchez, I. E., Dellarole, M., Gaston, K., & de Prat Gay, G. (2008). Comprehensive comparison of the interaction of the E2 master regulator with its cognate target DNA sites in 73 human papillomavirus types by sequence statistics. Nucleic Acids Research, 36(3), 756-69. doi:10.1093/nar/gkm1104

Mucosal human papillomaviruses (HPVs) are etiological agents of oral, anal and genital cancer. Properties of high- and low-risk HPV types cannot be reduced to discrete molecular traits. The E2 protein regulates viral replication and transcription thr... Read More