Search Results - "Persechini, Anthony"
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In Calmodulin–IQ Domain Complexes, the Ca2+-Free and Ca2+-Bound Forms of the Calmodulin C-Lobe Direct the N-Lobe to Different Binding Sites
Published in Biochemistry (Easton) (22-11-2011)“…We have investigated the roles played by the calmodulin (CaM) N- and C-lobes in establishing the conformations of CaM–IQ domain complexes in different…”
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Effects of Combined Phosphorylation at Ser-617 and Ser-1179 in Endothelial Nitric-oxide Synthase on EC50(Ca2+) Values for Calmodulin Binding and Enzyme Activation
Published in The Journal of biological chemistry (01-05-2009)“…We have investigated the possible biochemical basis for enhancements in NO production in endothelial cells that have been correlated with agonist- or shear…”
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The Relationship between the Free Concentrations of Ca2+ and Ca2+-calmodulin in Intact Cells
Published in The Journal of biological chemistry (12-03-1999)“…Using stably expressed fluorescent indicator proteins, we have determined for the first time the relationship between the free Ca2+ and Ca2+-calmodulin…”
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4
Phosphorylation within an Autoinhibitory Domain in Endothelial Nitric Oxide Synthase Reduces the Ca2+ Concentrations Required for Calmodulin To Bind and Activate the Enzyme
Published in Biochemistry (Easton) (15-07-2008)“…We have investigated the effects of phosphorylation at Ser-617 and Ser-635 within an autoinhibitory domain (residues 595−639) in bovine endothelial nitric…”
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Monitoring the total available calmodulin concentration in intact cells over the physiological range in free Ca2
Published in Cell calcium (Edinburgh) (01-05-2004)“…We describe the design, characterization and application of a new genetically encoded fluorescent biosensor for intracellular detection of both free…”
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Real-Time Evaluation of Myosin Light Chain Kinase Activation in Smooth Muscle Tissues from a Transgenic Calmodulin-Biosensor Mouse
Published in Proceedings of the National Academy of Sciences - PNAS (20-04-2004)“…Ca2+/calmodulin (CaM)-dependent phosphorylation of myosin regulatory light chain (RLC) by myosin light chain kinase (MLCK) initiates smooth muscle contraction…”
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Intracellular Coupling via Limiting Calmodulin
Published in The Journal of biological chemistry (04-07-2003)“…Measurements of cellular Ca 2 + -calmodulin concentrations have suggested that competition for limiting calmodulin may couple calmodulin-dependent activities…”
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Dynamic changes in free Ca-calmodulin levels in adult cardiac myocytes
Published in Journal of molecular and cellular cardiology (01-09-2006)“…Despite its multifunctional role in cardiac myocyte function, little is known about dynamic changes in activation state of calmodulin (CaM). Thus, the purpose…”
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The Kinetics of Ca2+-Dependent Switching in a Calmodulin−IQ Domain Complex
Published in Biochemistry (Easton) (20-11-2007)“…We have performed a kinetic analysis of Ca2+-dependent switching in the complex between calmodulin (CaM) and the IQ domain from neuromodulin, and have…”
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Calmodulin Directly Gates Gap Junction Channels
Published in The Journal of biological chemistry (25-08-2000)“…Cytosolic changes control gap junction channel gating via poorly understood mechanisms. In the past two decades calmodulin participation in gating has been…”
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Lobe-dependent Regulation of Ryanodine Receptor Type 1 by Calmodulin
Published in The Journal of biological chemistry (25-10-2002)“…Calmodulin activates the skeletal muscle Ca 2+ release channel RYR1 at n m Ca 2+ concentrations and inhibits the channel at μ m Ca 2+ concentrations. Using a…”
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Investigating the landscape of intracellular [Ca2+] in live cells by rapid photoactivated cross-linking of calmodulin-protein interactions
Published in Cell calcium (Edinburgh) (01-09-2021)“…•We have developed a method for rapid capture of calmodulin protein interactions as they occur throughout a living cell. Captured proteins are affinity…”
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Different Mechanisms for Ca Dissociation from Complexes of Calmodulin with Nitric Oxide Synthase or Myosin Light Chain Kinase
Published in The Journal of biological chemistry (05-01-1996)“…We have determined the stoichiometry and rate constants for the dissociation of Ca ion from calmodulin (CaM) complexed with rabbit skeletal muscle myosin light…”
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Ca2+ Binding and Energy Coupling in the Calmodulin-Myosin Light Chain Kinase Complex
Published in The Journal of biological chemistry (11-02-2000)“…We have previously shown that 3 Ca2+ ions are released cooperatively and 1 independently from the complex between (Ca2+)4-calmodulin and skeletal muscle myosin…”
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Activation of Myosin Light Chain Kinase Requires Translocation of Bound Calmodulin
Published in The Journal of biological chemistry (16-02-2001)“…A novel translocation step is inferred from structural studies of the interactions between the intracellular calcium receptor protein calmodulin (CaM) and one…”
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The EF-hand family of calcium-modulated proteins
Published in Trends in neurosciences (Regular ed.) (1989)“…The EF-hand homolog proteins bind calcium (Ca2+) with dissociation constants in the micromolar range and are modulated by stimulus-induced increases in…”
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Evaluating Calmodulin–Protein Interactions by Rapid Photoactivated Cross-Linking in Live Cells Metabolically Labeled with Photo-Methionine
Published in Journal of proteome research (04-10-2019)“…This work addresses the question of how the Ca2+ sensor protein calmodulin shapes cellular responses to Ca2+ signals. Proteins interacting with affinity tagged…”
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Localization of Unique Functional Determinants in the Calmodulin Lobes to Individual EF Hands
Published in The Journal of biological chemistry (13-12-1996)“…We have investigated the functional interchangeability of EF hands I and III or II and IV, which occupy structurally analogous positions in the native I-II and…”
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In Calmodulin-IQ Domain Complexes, the Ca super(2+)-Free and Ca super(2+)-Bound Forms of the Calmodulin C-Lobe Direct the N-Lobe to Different Binding Sites
Published in Biochemistry (Easton) (22-11-2011)“…We have investigated the roles played by the calmodulin (CaM) N- and C-lobes in establishing the conformations of CaM-IQ domain complexes in different Ca…”
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Journal Article