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GTPases are a large family of hydrolase enzymes that bind to the nucleotide guanosine triphosphate (GTP) and hydrolyze it to guanosine diphosphate (GDP). The GTP binding and hydrolysis takes place in the highly conserved G domain common to many GTPases.
Ribonucleic acid (RNA) is a polymeric molecule essential in various biological roles in coding, decoding, regulation and expression of genes. RNA and deoxyribonucleic acid (DNA) are nucleic acids. Along with lipids, proteins, and carbohydrates, nucleic acids constitute one of the four major macromolecules essential for all known forms of life. Like DNA, RNA is assembled as a chain of nucleotides, but unlike DNA, RNA is found in nature as a single strand folded onto itself, rather than a paired double strand. Cellular organisms use messenger RNA (mRNA) to convey genetic information that directs synthesis of specific proteins. Many viruses encode their genetic information using an RNA genome.
A generegulatory network (GRN) is a collection of molecular regulators that interact with each other and with other substances in the cell to govern the gene expression levels of mRNA and proteins which, in turn, determine the function of the cell. GRN also play a central role in morphogenesis, the creation of body structures, which in turn is central to evolutionary developmental biology (evo-devo).
Systems biology is the computational and mathematical analysis and modeling of complex biological systems. It is a biology-based interdisciplinary field of study that focuses on complex interactions within biological systems, using a holistic approach to biological research.
Modelling biological systems is a significant task of systems biology and mathematical biology. Computational systems biology aims to develop and use efficient algorithms, data structures, visualization and communication tools with the goal of computer modelling of biological systems. It involves the use of computer simulations of biological systems, including cellular subsystems, to both analyze and visualize the complex connections of these cellular processes.
Alfred Goodman Gilman was an American pharmacologist and biochemist. He and Martin Rodbell shared the 1994 Nobel Prize in Physiology or Medicine "for their discovery of G-proteins and the role of these proteins in signal transduction in cells."
Anthony James Pawson was a British-born Canadian scientist whose research revolutionised the understanding of signal transduction, the molecular mechanisms by which cells respond to external cues, and how they communicate with each other. He identified the phosphotyrosine-binding Src homology 2 as the prototypic non-catalytic interaction module. SH2 domains serve as a model for a large family of protein modules that act together to control many aspects of cellular signalling. Since the discovery of SH2 domains, hundreds of different modules have been identified in many proteins.
The beta-2 adrenergic receptor, also known as ADRB2, is a cell membrane-spanning beta-adrenergic receptor that binds epinephrine (adrenaline), a hormone and neurotransmitter whose signaling, via adenylate cyclase stimulation through trimeric Gs proteins, increased cAMP, and downstream L-type calcium channel interaction, mediates physiologic responses such as smooth muscle relaxation and bronchodilation.
B-cell lymphoma 6 protein is a protein that in humans is encoded by the BCL6 gene. Like BCL2, BCL3, BCL5, BCL7A, BCL9 and BCL10, it has clinical significance in lymphoma.
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Dr1-associated corepressor is a protein that in humans is encoded by the DRAP1 gene.
Nuclear factor 1 A-type is a protein that in humans is encoded by the NFIA gene.
Guanine nucleotide-binding protein subunit alpha-13 is a protein that in humans is encoded by the GNA13 gene.
Guanine nucleotide-binding protein G(k) subunit alpha is a protein that in humans is encoded by the GNAI3 gene.
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Michael B. Elowitz is a biologist and professor of Biology, Bioengineering, and Applied Physics at the California Institute of Technology, and investigator at the Howard Hughes Medical Institute. In 2007 he was the recipient of the Genius grant, better known as the MacArthur Fellows Program for the design of a synthetic gene regulatory network, the Repressilator, which helped initiate the field of synthetic biology. In addition, he showed, for the first time, how inherently random effects, or 'noise', in gene expression could be detected and quantified in living cells, leading to a growing recognition of the many roles that noise plays in living cells. His work in Synthetic Biology and Noise represent two foundations of the field of Systems Biology.
Johan Paulsson is a Swedish mathematician and systems biologist at Harvard Medical School. He is a leading researcher in systems biology and stochastic processes, specializing in stochasticity in gene networks and plasmid reproduction.
The secretome is the set of proteins expressed by an organism and secreted into the extracellular space. In humans, this subset of the proteome encompasses 13-20% of all proteins, including cytokines, growth factors, extracellular matrix proteins and regulators, and shed receptors. The secretome of a specific tissue can be measured by mass spectrometry and its analysis constitutes a type of proteomics known as secretomics.
Sarah Amalia Teichmann is a German scientist who is head of cellular genetics at the Wellcome Sanger Institute and a visiting research group leader at the European Bioinformatics Institute (EMBL-EBI). She serves as director of research in the Cavendish Laboratory, at the University of Cambridge and a senior research fellow at Churchill College, Cambridge.
References
- ↑ "Mount Sinai School of Medicine - Faculty profile" . Retrieved 2010-03-31.
- ↑ "Systems Biology Center New York" . Retrieved 2010-03-31.
- ↑ "The Experimental Therapeutics Institute". Archived from the original on March 30, 2009. Retrieved 2010-03-31.
- ↑ "Integrating and Leveraging the Physical Sciences to Open a New Frontier in Oncology" . Retrieved 2010-03-31. The National Cancer Institute Office of Technology and Industrial Relations
- ↑ Emily Carlson (March 30, 2009). "Q&A: Ravi Iyengar on Molecular Systems". Computing Life. National Institute of General Medical Sciences. Retrieved 2010-03-31.
- ↑ "American Association for the Advancement of Science" . Retrieved September 26, 2015.
- ↑ "Ravi Iyengar - Patents" . Retrieved 2010-03-31. patentdocs
- ↑ "Structure and Function of Signal Transducing Components: National Institutes of Health" . Retrieved September 26, 2015.
- ↑ "Systems Biology Center in New York: National Institutes of Health" . Retrieved September 26, 2015.
- ↑ "Functions of Regulatory Motifs in Signaling Networks: National Institutes of Health" . Retrieved September 26, 2015.
- ↑ "Modeling Cell Regulatory Networks: National Institutes of Health" . Retrieved September 26, 2015.
