Chromatin is a complex of DNA and protein found in eukaryotic cells. The primary function is to package long DNA molecules into more compact, denser structures. This prevents the strands from becoming tangled and also plays important roles in reinforcing the DNA during cell division, preventing DNA damage, and regulating gene expression and DNA replication. During mitosis and meiosis, chromatin facilitates proper segregation of the chromosomes in anaphase; the characteristic shapes of chromosomes visible during this stage are the result of DNA being coiled into highly condensed chromatin.
A nucleosome is the basic structural unit of DNA packaging in eukaryotes. The structure of a nucleosome consists of a segment of DNA wound around eight histone proteins and resembles thread wrapped around a spool. The nucleosome is the fundamental subunit of chromatin. Each nucleosome is composed of a little less than two turns of DNA wrapped around a set of eight proteins called histones, which are known as a histone octamer. Each histone octamer is composed of two copies each of the histone proteins H2A, H2B, H3, and H4.
Max Ferdinand Perutz was an Austrian-born British molecular biologist, who shared the 1962 Nobel Prize for Chemistry with John Kendrew, for their studies of the structures of haemoglobin and myoglobin. He went on to win the Royal Medal of the Royal Society in 1971 and the Copley Medal in 1979. At Cambridge he founded and chaired (1962–79) The MRC Laboratory of Molecular Biology (LMB), fourteen of whose scientists have won Nobel Prizes.
The Max Planck Institute of Biochemistry (MPIB) is a research institute of the Max Planck Society located in Martinsried, a suburb of Munich. The institute was founded in 1973 by the merger of three formerly independent institutes: the Max Planck Institute of Biochemistry, the Max Planck Institute of Protein and Leather Research, and the Max Planck Institute of Cell Chemistry.
Michael Levitt, is a South African-born biophysicist and a professor of structural biology at Stanford University, a position he has held since 1987. Levitt received the 2013 Nobel Prize in Chemistry, together with Martin Karplus and Arieh Warshel, for "the development of multiscale models for complex chemical systems". In 2018, Levitt was a founding co-editor of the Annual Review of Biomedical Data Science.
The Medical Research Council (MRC) Laboratory of Molecular Biology (LMB) is a research institute in Cambridge, England, involved in the revolution in molecular biology which occurred in the 1950–60s. Since then it has remained a major medical research laboratory at the forefront of scientific discovery, dedicated to improving the understanding of key biological processes at atomic, molecular and cellular levels using multidisciplinary methods, with a focus on using this knowledge to address key issues in human health.
Roger David Kornberg is an American biochemist and professor of structural biology at Stanford University School of Medicine. Kornberg was awarded the Nobel Prize in Chemistry in 2006 for his studies of the process by which genetic information from DNA is copied to RNA, "the molecular basis of eukaryotic transcription."
The solenoid structure of chromatin is a model for the structure of the 30 nm fibre. It is a secondary chromatin structure which helps to package eukaryotic DNA into the nucleus.
Dame Jean Olwen Thomas, is a Welsh biochemist, former Master of St Catharine's College, Cambridge, and Chancellor of Swansea University.
AT-rich interactive domain-containing protein 1A is a protein that in humans is encoded by the ARID1A gene.
Simon Joseph Boulton is a British scientist who has made important contributions to the understanding of DNA repair and the treatment of cancer resulting from DNA damage. He currently occupies the position of Senior Scientist and group leader of the DSB Repair Metabolism Laboratory at the Francis Crick Institute, London. He is also an honorary Professor at University College London.
H2A histone family, member B3 is a protein that in humans is encoded by the H2AFB3 gene.
Karolin Luger is an Austrian-American biochemist and biophysicist known for her work with nucleosomes and discovery of the three-dimensional structure of chromatin. She is a University Distinguished Professor at Colorado State University in Fort Collins and works with the University of Colorado School of Medicine's Department of Biochemistry and Molecular Genetics.
Dame Amanda Gay Fisher is a British cell biologist and Director of the Medical Research Council (MRC) London Institute of Medical Sciences at the Hammersmith Hospital campus of Imperial College London, where she is also a Professor leading the Institute of Clinical Sciences. She has made contributions to multiple areas of cell biology, including determining the function of several genes in HIV and describing the importance of a gene's location within the cell nucleus.
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.
Robin Campbell Allshire is Professor of Chromosome Biology at University of Edinburgh and a Wellcome Trust Principal Research Fellow. His research group at the Wellcome Trust Centre for Cell Biology focuses on the epigenetic mechanisms governing the assembly of specialised domains of chromatin and their transmission through cell division.
Ana Pombo is an appointed Professor (W3) of Biology at Humboldt University and senior group leader at the Berlin Institute for Medical Systems Biology (BIMSB) at the Max Delbrück Center for Molecular Medicine (MDC) in Berlin-Buch with the focus on "Epigenetic Regulation and Chromatin Architecture". Since May 2018, Pombo is an elected member of the European Molecular Biology Organization (EMBO).
Moshe Yaniv, born in 1938 in Hadera, Israel, is a French-Israeli molecular biologist who has studied the structure and functions of oncogenic DNA viruses as well as the general mechanisms for regulating gene expression in higher organisms and their deregulation during tumor pathologies and development. He is a member of the French Academy of sciences and Professor Emeritus at the Institut Pasteur.
Timothy John Richmond is a Swiss/American molecular biologist, biochemist, and biophysicist.
