University of Hull logo

The inhibitory subunit of cardiac troponin (cTnI) is modified by arginine methylation in the human heart (2019)
Journal Article
Onwuli, D. O., Samuel, S., Sfyri, P., Welham, K., Goddard, M., Abu-Omar, Y., …Beltran-Alvarez, P. (in press). The inhibitory subunit of cardiac troponin (cTnI) is modified by arginine methylation in the human heart. International journal of cardiology,

Background The inhibitory subunit of cardiac troponin (cTnI) is a gold standard cardiac biomarker and also an essential protein in cardiomyocyte excitation-contraction coupling. The interactions of cTnI with other proteins are fine-tuned by post-tra... Read More

Do sodium channel proteolytic fragments regulate sodium channel expression? (2017)
Journal Article
Onwuli, D. O., Yañez-Bisbe, L., Pinsach-Abuin, M., Tarradas, A., Brugada, R., Greenman, J., …Beltran-Alvarez, P. (2017). Do sodium channel proteolytic fragments regulate sodium channel expression?. Channels, 11(5), 476-481. doi:10.1080/19336950.2017.1355663

© 2017 Taylor & Francis The cardiac voltage-gated sodium channel (gene: SCN5A, protein: Na V 1.5) is responsible for the sodium current that initiates the cardiomyocyte action potential. Research into the mechanisms of SCN5A gene expression has gai... Read More

Transcriptional regulation of the sodium channel gene (SCN5A) by GATA4 in human heart (2016)
Journal Article
Tarradas, A., Pinsach-Abuin, M. L., Mackintosh, C., Llorà-Batlle, O., Pérez-Serra, A., Batlle, M., …Pagans, S. (2017). Transcriptional regulation of the sodium channel gene (SCN5A) by GATA4 in human heart. Journal of Molecular and Cellular Cardiology, 102, 74-82. doi:10.1016/j.yjmcc.2016.10.013

Aberrant expression of the sodium channel gene (SCN5A) has been proposed to disrupt cardiac action potential and cause human cardiac arrhythmias, but the mechanisms of SCN5A gene regulation and dysregulation still remain largely unexplored. To gain i... Read More

Mapping arginine methylation in the human body and cardiac disease (2016)
Journal Article
Onwuli, D. O., Cawthorne, C., Beltran-Alvarez, P., Cawthorne, C., Onwuli, D., & Rigau-Roca, L. (2016). Mapping arginine methylation in the human body and cardiac disease. Proteomics. Clinical applications, 11(1-2), (1600106). doi:10.1002/prca.201600106. ISSN 1862-8346

Purpose Arginine methylation (ArgMe) is one of the most ubiquitous post-translational modifications, and hundreds of proteins undergo ArgMe in e.g. brain. However, the scope of ArgMe in many tissues, including the heart, is currently under explored.... Read More

An update on transcriptional and post-translational regulation of brain voltage-gated sodium channels (2015)
Journal Article
Beltran-Alvarez, P., & Onwuli, D. O. (2016). An update on transcriptional and post-translational regulation of brain voltage-gated sodium channels. Amino acids, 48(3), (641-651). doi:10.1007/s00726-015-2122-y. ISSN 0939-4451

Voltage-gated sodium channels are essential proteins in brain physiology, as they generate the sodium currents that initiate neuronal action potentials. Voltage-gated sodium channels expression, localisation and function are regulated by a range of t... Read More

Interplay between R513 methylation and S516 phosphorylation of the cardiac voltage-gated sodium channel (2014)
Journal Article
Beltran-Alvarez, P., Brugada, R., Díaz-Hernández, R., Feixas, F., Osuna, S., & Pagans, S. (2015). Interplay between R513 methylation and S516 phosphorylation of the cardiac voltage-gated sodium channel. Amino acids, 47(2), 429-434. doi:10.1007/s00726-014-1890-0

Arginine methylation is a novel post-translational modification within the voltage-gated ion channel superfamily, including the cardiac sodium channel, Naᵥ1.5. We show that Naᵥ1.5 R513 methylation decreases S516 phosphorylation rate by 4 orders of ma... Read More