BioCAT,
Dept. of Biological Sciences,
BioCAT, Dept. of Biological Sciences
Thomas Irving is Professor of Biology and Physics in the Department of Biological Sciences at the Illinois Institute of Technology in Chicago, Illinois. He received his B.Sc., M.Sc, and Ph.D. degrees from the University of Guelph, Ontario Canada.
He began his career studying muscle structure and function using small-angle X-ray diffraction of muscle as an undergraduate, continuing in his graduate studies. After a brief detour into cell biology at the University of Texas at Austin, he returned to X-ray diffraction as a staff scientist at the Cornell High Energy Synchrotron Source (CHESS), Ithaca NY. Here he received training in using synchrotron radiation for biophysical studies and worked with well-known muscle researchers including the late Hugh Huxley (Brandeis) and Michael Reedy (Duke University) on muscle diffraction studies.
In 1994 he moved to the Illinois Institute of Technology in Chicago to help launch the Biophysics Collaborative Access Team (BioCAT) project. BioCAT is organized as a NIH–supported Biotechnology Research Resource dedicated to structural studies of non-crystalline biological materials using Small and Wide-angle Fiber Diffraction and Macromolecular Small-Angle X-ray Scattering (SAXS) with emphasis on time and spatially resolved applications. The heart of the facility is Beamline 18ID, located on Sector 18 at the Advanced Photon Source (APS), Argonne National Laboratory in Argonne, IL. Professor Irving has been the Director of BioCAT and Principal Investigator of the P41 grant that funds it since 2001. He works with a number of investigator groups around the country and internationally to study the structure and function of muscle sarcomeric proteins especially in relation to muscle regulation.
Synchrotron X-ray imaging reveals a correlation of tumor copper speciation with Clioquinol's anticancer activity.
Journal of cellular biochemistry Sep, 2009 | Pubmed ID: 19530227
Myosin head configuration in relaxed insect flight muscle: x-ray modeled resting cross-bridges in a pre-powerstroke state are poised for actin binding.
Biophysical journal Aug, 2003 | Pubmed ID: 12885653
Microfibrillar structure of type I collagen in situ.
Proceedings of the National Academy of Sciences of the United States of America Jun, 2006 | Pubmed ID: 16751282
Interfilament spacing is preserved during sarcomere length isometric contractions in rat cardiac trabeculae.
Biophysical journal May, 2007 | Pubmed ID: 17293398
Aging enhances indirect flight muscle fiber performance yet decreases flight ability in Drosophila.
Biophysical journal Sep, 2008 | Pubmed ID: 18515368
Structure of flexible filamentous plant viruses.
Journal of virology Oct, 2008 | Pubmed ID: 18667514
X-ray scattering study of actin polymerization nuclei assembled by tandem W domains.
Proceedings of the National Academy of Sciences of the United States of America Aug, 2008 | Pubmed ID: 18669664
Cost-effective EMCCD-based detector for time-resolved biological SAXS applications.
Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment Jun, 2007 | Pubmed ID: 18997878
High-flux hard X-ray microbeam using a single-bounce capillary with doubly focused undulator beam.
Journal of synchrotron radiation Jan, 2009 | Pubmed ID: 19096178
Alternative S2 hinge regions of the myosin rod affect myofibrillar structure and myosin kinetics.
Biophysical journal May, 2009 | Pubmed ID: 19450484
Phosphorylation and the N-terminal extension of the regulatory light chain help orient and align the myosin heads in Drosophila flight muscle.
Journal of structural biology Nov, 2009 | Pubmed ID: 19635572
Myofilament length dependent activation.
Journal of molecular and cellular cardiology May, 2010 | Pubmed ID: 20053351
X-ray diffraction evidence for myosin-troponin connections and tropomyosin movement during stretch activation of insect flight muscle.
Proceedings of the National Academy of Sciences of the United States of America Jan, 2011 | Pubmed ID: 21148419
Shape of tropoelastin, the highly extensible protein that controls human tissue elasticity.
Proceedings of the National Academy of Sciences of the United States of America Mar, 2011 | Pubmed ID: 21368178
Myosin head orientation: a structural determinant for the Frank-Starling relationship.
American journal of physiology. Heart and circulatory physiology Jun, 2011 | Pubmed ID: 21460195
Regulatory light chain phosphorylation and N-terminal extension increase cross-bridge binding and power output in Drosophila at in vivo myofilament lattice spacing.
Biophysical journal Apr, 2011 | Pubmed ID: 21463587
COOH-terminal truncation of flightin decreases myofilament lattice organization, cross-bridge binding, and power output in Drosophila indirect flight muscle.
American journal of physiology. Cell physiology Aug, 2011 | Pubmed ID: 21593450
Structural and functional aspects of the myosin essential light chain in cardiac muscle contraction.
FASEB journal : official publication of the Federation of American Societies for Experimental Biology Dec, 2011 | Pubmed ID: 21885653
Roles for cardiac MyBP-C in maintaining myofilament lattice rigidity and prolonging myosin cross-bridge lifetime.
Biophysical journal Oct, 2011 | Pubmed ID: 21961592
Myosin binding protein-C phosphorylation is the principal mediator of protein kinase A effects on thick filament structure in myocardium.
Journal of molecular and cellular cardiology Nov, 2012 | Pubmed ID: 22850286
Thick-to-thin filament surface distance modulates cross-bridge kinetics in Drosophila flight muscle.
Biophysical journal Sep, 2012 | Pubmed ID: 22995500
Calcium sensitivity and myofilament lattice structure in titin N2B KO mice.
Archives of biochemistry and biophysics Jul, 2013 | Pubmed ID: 23246787
Head-head interactions of resting myosin crossbridges in intact frog skeletal muscles, revealed by synchrotron x-ray fiber diffraction.
PloS one , 2012 | Pubmed ID: 23285033
The length-tension curve in muscle depends on lattice spacing.
Proceedings. Biological sciences / The Royal Society , 2013 | Pubmed ID: 23843386
Advances in turbulent mixing techniques to study microsecond protein folding reactions.
Biopolymers Nov, 2013 | Pubmed ID: 23868289
Sub-millisecond time-resolved SAXS using a continuous-flow mixer and X-ray microbeam.
Journal of synchrotron radiation Nov, 2013 | Pubmed ID: 24121320
High-speed detector for time-resolved diffraction studies.
Journal of physics. Conference series , 2013 | Pubmed ID: 24489595
Microsecond barrier-limited chain collapse observed by time-resolved FRET and SAXS.
Journal of molecular biology May, 2014 | Pubmed ID: 24607691
Modulation of frustration in folding by sequence permutation.
Proceedings of the National Academy of Sciences of the United States of America Jul, 2014 | Pubmed ID: 25002512
Hugh E. Huxley: the compleat biophysicist.
Biophysical journal Oct, 2014 | Pubmed ID: 25296301
Elastic proteins in the flight muscle of Manduca sexta.
Archives of biochemistry and biophysics Feb, 2015 | Pubmed ID: 25602701
Constitutive phosphorylation of cardiac myosin regulatory light chain prevents development of hypertrophic cardiomyopathy in mice.
Proceedings of the National Academy of Sciences of the United States of America Jul, 2015 | Pubmed ID: 26124132
Methods for analysis of size-exclusion chromatography-small-angle X-ray scattering and reconstruction of protein scattering.
Journal of applied crystallography Aug, 2015 | Pubmed ID: 26306089
Titin strain contributes to the Frank-Starling law of the heart by structural rearrangements of both thin- and thick-filament proteins.
Proceedings of the National Academy of Sciences of the United States of America Feb, 2016 | Pubmed ID: 26858417
X-ray diffraction from nonuniformly stretched helical molecules.
Journal of applied crystallography Jun, 2016 | Pubmed ID: 27275136
Reduced cross-bridge dependent stiffness of skinned myocardium from mice lacking cardiac myosin binding protein-C.
Molecular and cellular biochemistry Aug, 2004 | Pubmed ID: 27520666
Three-dimensional stochastic model of actin-myosin binding in the sarcomere lattice.
The Journal of general physiology 12, 2016 | Pubmed ID: 27864330
Atomistic modelling of scattering data in the Collaborative Computational Project for Small Angle Scattering (CCP-SAS).
Journal of applied crystallography Dec, 2016 | Pubmed ID: 27980506
Hypercontractile mutant of ventricular myosin essential light chain leads to disruption of sarcomeric structure and function and results in restrictive cardiomyopathy in mice.
Cardiovascular research Aug, 2017 | Pubmed ID: 28371863
Structural Dynamics Control Allosteric Activation of Cytohesin Family Arf GTPase Exchange Factors.
Structure (London, England : 1993) 01, 2018 | Pubmed ID: 29276036
Dysfunctional sarcomere contractility contributes to muscle weakness in ACTA1-related nemaline myopathy (NEM3).
Annals of neurology 02, 2018 | Pubmed ID: 29328520
Sarcomeric perturbations of myosin motors lead to dilated cardiomyopathy in genetically modified mice.
Proceedings of the National Academy of Sciences of the United States of America 03, 2018 | Pubmed ID: 29463717
Deciphering the super relaxed state of human β-cardiac myosin and the mode of action of mavacamten from myosin molecules to muscle fibers.
Proceedings of the National Academy of Sciences of the United States of America 08, 2018 | Pubmed ID: 30104387
Structural and functional impact of troponin C-mediated Ca sensitization on myofilament lattice spacing and cross-bridge mechanics in mouse cardiac muscle.
Journal of molecular and cellular cardiology Oct, 2018 | Pubmed ID: 30138628
Myosin Head Configurations in Resting and Contracting Murine Skeletal Muscle.
International journal of molecular sciences Sep, 2018 | Pubmed ID: 30200618
Nebulin stiffens the thin filament and augments cross-bridge interaction in skeletal muscle.
Proceedings of the National Academy of Sciences of the United States of America 10, 2018 | Pubmed ID: 30249654
Thick-Filament Extensibility in Intact Skeletal Muscle.
Biophysical journal 10, 2018 | Pubmed ID: 30266320
Slow-twitch skeletal muscle defects accompany cardiac dysfunction in transgenic mice with a mutation in the myosin regulatory light chain.
FASEB journal : official publication of the Federation of American Societies for Experimental Biology Mar, 2019 | Pubmed ID: 30365366
Getting into the thick (and thin) of it.
The Journal of general physiology May, 2019 | Pubmed ID: 30792184
Response to: Thick Filament Length Changes in Muscle Have Both Elastic and Structural Components.
Biophysical journal Mar, 2019 | Pubmed ID: 30850114
Nebulin and titin modulate cross-bridge cycling and length-dependent calcium sensitivity.
The Journal of general physiology May, 2019 | Pubmed ID: 30948421
Cardiac myosin activation with 2-deoxy-ATP via increased electrostatic interactions with actin.
Proceedings of the National Academy of Sciences of the United States of America Jun, 2019 | Pubmed ID: 31110001
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