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Cyclic adenosine monophosphate is a second messenger, or cellular signal occurring within cells, that is important in many biological processes. cAMP is a derivative of adenosine triphosphate (ATP) and used for intracellular signal transduction in many different organisms, conveying the cAMP-dependent pathway.
Adenosine monophosphate (AMP), also known as 5'-adenylic acid, is a nucleotide. AMP consists of a phosphate group, the sugar ribose, and the nucleobase adenine. It is an ester of phosphoric acid and the nucleoside adenosine. As a substituent it takes the form of the prefix adenylyl-.
In cell biology, protein kinase A (PKA) is a family of serine-threonine kinase whose activity is dependent on cellular levels of cyclic AMP (cAMP). PKA is also known as cAMP-dependent protein kinase. PKA has several functions in the cell, including regulation of glycogen, sugar, and lipid metabolism. It should not be confused with 5'-AMP-activated protein kinase.
5' AMP-activated protein kinase or AMPK or 5' adenosine monophosphate-activated protein kinase is an enzyme that plays a role in cellular energy homeostasis, largely to activate glucose and fatty acid uptake and oxidation when cellular energy is low. It belongs to a highly conserved eukaryotic protein family and its orthologues are SNF1 in yeast, and SnRK1 in plants. It consists of three proteins (subunits) that together make a functional enzyme, conserved from yeast to humans. It is expressed in a number of tissues, including the liver, brain, and skeletal muscle. In response to binding AMP and ADP, the net effect of AMPK activation is stimulation of hepatic fatty acid oxidation, ketogenesis, stimulation of skeletal muscle fatty acid oxidation and glucose uptake, inhibition of cholesterol synthesis, lipogenesis, and triglyceride synthesis, inhibition of adipocyte lipogenesis, inhibition of adipocyte lipolysis, and modulation of insulin secretion by pancreatic β-cells.
CREB-TF is a cellular transcription factor. It binds to certain DNA sequences called cAMP response elements (CRE), thereby increasing or decreasing the transcription of the genes. CREB was first described in 1987 as a cAMP-responsive transcription factor regulating the somatostatin gene.
Sir Michael John Berridge (22 October 1938 - 13 February 2020) was a British physiologist and biochemist. He was known for his work on cell signaling, in particular the discovery that inositol trisphosphate acts as a second messenger, linking events at the plasma membrane with the release of calcium ions (Ca2+) within the cell.
5'-AMP-activated protein kinase catalytic subunit alpha-2 is an enzyme that in humans is encoded by the PRKAA2 gene.
5'-AMP-activated protein kinase catalytic subunit alpha-1 is an enzyme that in humans is encoded by the PRKAA1 gene.
5'-AMP-activated protein kinase subunit beta-1 is an enzyme that in humans is encoded by the PRKAB1 gene.
5'-AMP-activated protein kinase subunit gamma-1 is an enzyme that in humans is encoded by the PRKAG1 gene.
Christopher John Marshall FRS FMedSci was a British scientist who worked as director of the Division for Cancer Biology at the Institute of Cancer Research. Marshall was distinguished for research in the field of tumour cell signalling. His track record includes the discovery of the N-Ras oncogene , the identification of farnesylation of Ras proteins, and the discovery that Ras signals through the MAPK/ERK pathway. These findings have led to therapeutic development of inhibitors of Ras farnesylation, MEK and B-Raf.
Laurence Harris Pearl FRS FMedSci is a British biochemist and structural biologist who is currently Professor of Structural Biology in the Genome Damage and Stability Centre and was Head of the School of Life Sciences at the University of Sussex.
Dario Renato Alessi is a French-born British biochemist, Director of the Medical Research Council Protein Phosphorylation and Ubiquitylation Unit and Professor of Signal Transduction, at the School of Life Sciences, University of Dundee.
David Julian Harry Downward FRS FMedSci is Associate Research Director at the Francis Crick Institute and Senior Group Leader at the Institute of Cancer Research. He was formerly head of the Signal transduction Laboratory at the London Research Institute. He is a member of the Editorial Board for Cell.
Doreen Ann CantrellCBE, FRS, FRSE, FMedSci is a Scottish scientist and Professor of Cellular Immunology at the School of Life Sciences, University of Dundee. She researches the development and activation T lymphocytes, which are key to the understanding the immune response.
Richard Nelson Perham, FRS, FMedSci, FRSA, was Professor of biochemistry at the University of Cambridge, and Master of St John's College, Cambridge 2004–07. He was also editor-in-chief of FEBS Journal from 1998 to 2013.
William Charles Earnshaw is Professor of Chromosome Dynamics at the University of Edinburgh, where he has been a Wellcome Trust Principal Research Fellow since 1996.
Roger Lee Williams is a structural biologist and group leader at the Medical Research Council (MRC) Laboratory of Molecular Biology. His group studies the form and flexibility of protein complexes that associate with and modify lipid cell membranes. His work concerns the biochemistry, structures and dynamics of these key enzyme complexes.
Richard Malcolm Marais is Director of the Cancer Research UK (CRUK) Manchester Institute and Professor of Molecular Oncology at the University of Manchester.
The Portland Press Excellence in Science Award was an annual award instituted in 1964 to recognize notable research in any branch of biochemistry undertaken in the UK or Republic of Ireland. It was initially called the CIBA Medal and Prize, then the Novartis Medal and Prize. The prize consists of a medal and a £3000 cash award. The winner is invited to present a lecture at a Society conference and submit an article to one of the Society's publications. Notable recipients include the Nobel laureates John E. Walker, Paul Nurse, Sydney Brenner, César Milstein, Peter D. Mitchell, Rodney Porter, and John Cornforth.
References
- ↑ "Professor Grahame Hardie FRS, FRSE, FMedSci". 30 August 2013.
- ↑ "David Grahame Hardie - F1000Prime".
