Athi N. Naganathan

Athi N. Naganathan

Associate Professor
Ph. D., University of Maryland, USA
B. Tech., Anna University, Chennai
Office: Block:2 BT 115
Tel: +91-44-2257-5120
Email: athi@iitm·ac·in
Lab: BT 113 (Website)

Research Interests

  • Experimental Characterization of Protein Conformational Behavior
  • Modeling and Predicting Folding Landscapes using Statistical Models
  • Understanding Protein Folding and Dynamics through Coarse-Grained and All-Atom Molecular Simulations
  • Multi-Scale Exploration of Protein Conformational Ensembles

Publications

2020

58. Sandhyaa Subramanian, Hemashree Golla, Kalivarathan Divakar, Adithi Kannan, David De Sancho & Athi N. Naganathan (2020). Slow Folding of a Helical Protein: Large Barriers, Strong Internal Friction, or a Shallow, Bumpy Landscape? J. Phys. Chem. B. (In press, DOI:10.1021/acs.jpcb.0c05976).  

57. Kabita Bhattacharjee, Soundhararajan Gopi & Athi N. Naganathan (2020). A Disordered Loop Mediates Heterogeneous Unfolding of an Ordered Protein by Altering the Native Ensemble. J. Phys. Chem. Lett., 11, 6749-6756.  

56. Abhishek Narayan, Soundhararajan Gopi, Bincy Lukose & Athi N. Naganathan (2020). Electrostatic Frustration Shapes Folding Mechanistic Differences in Paralogous Bacterial Stress Response Proteins. J. Mol. Biol., 432, 4830-4839.  

55. Soundhararajan Gopi & Athi N. Naganathan (2020). Non-specific DNA-driven quinary interactions promote structural transitions in proteins. Phys. Chem. Chem. Phys., 22, 12671-12677.  

54. Athi N. Naganathan (2020). Molecular origins of folding rate differences in the thioredoxin family.Biochem. J., 477, 1083-1087.  

53. Athi N. Naganathan (2020). Protein folding: how, why, and beyond. Protein Homeostasis Diseases: Mechanisms and Novel Therapies, 3-22.  

52. Soundhararajan Gopi, Devanshu Devanshu, Nandakumar Rajasekaran, Sathvik Anantakrishnan & Athi N. Naganathan (2020). pPerturb: A Server for Predicting Long-Distance Energetic Couplings and Mutation-Induced Stability Changes in Proteins via Perturbations. ACS Omega, 5, 1142-1146.  

51. Sneha Munshi, Divya Rajendran, Samyuktha Ramesh, Sandhyaa Subramanian, Kabita Bhattacharjee, Meagha Ramana Kumar & Athi N. Naganathan (2020). Controlling Structure and Dimensions of a Disordered Protein via Mutations. Biochemistry, 59, 171-174.  [Featured in “Future of Biochemistry 2020: The Asia-Pacific Issue”]

2019

50. Soundhararajan Gopi, Akashnathan Aranganathan & Athi N. Naganathan (2019). Thermodynamics and Folding Landscapes of Large Proteins from a Statistical Mechanical Model. Curr. Res. Struct. Biol., 1, 6-12.  

49. Abhishek Narayan, Kabita Bhattacharjee & Athi N. Naganathan (2019). Thermally versus Chemically Denatured Protein States. Biochemistry, 58, 2519-2523.  

48. Abhishek Narayan, Soundhararajan Gopi, David Fushman & Athi N. Naganathan (2019). A binding cooperativity switch driven by synergistic structural swelling of an osmo-regulatory protein pair. Nat. Commun., 10, 1995.  

47. Sneha Munshi, Sandhyaa Subramanian, Samyuktha Ramesh, Hemashree Golla, Divakar Kalivarathan, Madhurima Kulkarni, Luis Alberto Campos Prieto, Ashok Sekhar & Athi N. Naganathan (2019). Engineering Order and Cooperativity in a Disordered Protein. Biochemistry58, 2389–2397.  

46. Athi N. Naganathan (2019). Modulation of Allosteric Coupling by Mutations: from Protein Dynamics and Packing to Altered Native Ensembles and Function. Curr. Opin. Struct. Biol., 54, 1-9.  

45. Encarnación Medina-Carmona, Isabel Betancor-Fernández, Jaime Santos, Noel Mesa-Torres, Silvia Grottelli, Cristina Batlle, Athi N. Naganathan, Elisa Oppici, Barbara Cellini, Salvador Ventura, Eduardo Salido & Angel L. Pey (2019). Insight into the Specificity and Severity of Pathogenic Mechanisms Associated with Missense Mutations through Experimental and Structural Perturbation Analyses. Hum. Mol. Genet., 281 1-5.  

2018

44. Sneha Munshi, Soundhararajan Gopi, Gitanjali Asampille, Sandhyaa Subramanian, Luis Campos, Hanudatta Atreya & Athi N. Naganathan (2018). Tunable Order-Disorder Continuum in Protein-DNA Interactions. Nucleic Acids Res., 46, 8700–8709.  

43. Abhishek Narayan & Athi N. Naganathan (2018). Switching Protein Conformational Substates by Protonation and Mutation. J. Phys. Chem. B. 122, 11039–11047.  

42. Sneha Munshi, Divya Rajendran & Athi N. Naganathan (2018). Entropic Control of an Excited Folded-Like Conformation in a Disordered Protein Ensemble. J. Mol. Biol., 430, 2688-2694.  [Recommended by Faculty of 1000 (F1000)]

41. Soundhararajan Gopi, Suvadip Paul, Sayan Ranu & Athi N. Naganathan (2018). Extracting the Hidden Distributions Underlying the Mean Transition State Structures in Protein Folding. J. Phys. Chem. Lett., 9, 1771-1777.  

40. Sneha Munshi, Soundhararajan Gopi,  Sandhyaa Subramanian,  Luis Campos & Athi N. Naganathan (2018). Protein Plasticity driven by Disorder and Collapse governs the Heterogeneous Binding of CytR to DNA. Nucleic Acids Res., 46, 4044-4053.  

39. Soundhararajan Gopi,  Devanshu Devanshu,  Praveen Krishna & Athi N. Naganathan (2018). pStab: Prediction of Stable Mutants, Unfolding Curves, Stability Maps and Protein Electrostatic Frustration. Bioinformatics., 34, 875-877.  

2017

38. Nandakumar Rajasekaran, Ashok Sekhar & Athi N. Naganathan (2017). A Universal Pattern in the Percolation and Dissipation of Protein Structural Perturbations. J. Phys. Chem. Lett., 8, 4779–4784.  [Recommended by Faculty of 1000 (F1000)]

37. Soundhararajan Gopi, Animesh Singh, Swaathiratna Suresh, Suvadip Paul, Sayan Ranu & Athi N. Naganathan (2017). Toward a Quantitative Description of Microscopic Pathway Heterogeneity in Protein Folding. Phys. Chem. Chem. Phys., 19, 20891 – 20903.  

36. Nandakumar Rajasekaran & Athi N. Naganathan (2017). A Self-Consistent Structural Perturbation Approach for Determining the Magnitude and Extent of Allosteric Coupling in Proteins. Biochem. J., 474, 2379–2388.  

35. Abhishek Narayan & Athi N. Naganathan (2017). Tuning the Continuum of Structural States in the Native Ensemble of a Regulatory Protein. J. Phys. Chem. Lett. 8, 1683–1687.  

34. Abhishek Narayan, Luis A. Campos, Sandhya Bhatia, David Fushman & Athi N. Naganathan (2017). Graded Structural Polymorphism in a Bacterial Thermosensor Protein. J. Am. Chem. Soc., 139, 792–802.  

33. Nandakumar Rajasekaran, Swaathiratna Suresh, Soundhararajan Gopi, Karthik Raman & Athi N. Naganathan (2017). A General Mechanism for the Propagation of Mutational Effects in Proteins. Biochemistry, 56, 294–305.  [Highlighted by Biochemistry as one of the top cited articles published in 2017]

2016

32. Athi N. Naganathan (2016). Predictive Modeling of Protein Folding Thermodynamics, Mutational Effects and Free-Energy Landscapes. Proc. Indian Natn. Sci. Acad., 82, 1211-1228.  

31. Priyashree Chaudhary, Athi N. Naganathan & M. Michael Gromiha (2016). Prediction of change in protein unfolding rates upon point mutations in two state proteins. Biochim. Biophys. Acta., 1864, 1104–1109.  

30. Nandakumar Rajasekaran, Soundhararajan Gopi, Abhishek Narayan & Athi N. Naganathan (2016)Quantifying Protein Disorder through Measures of Excess Conformational Entropy. J. Phys. Chem. B, 120, 4341–4350.  [Recommended by Faculty of 1000 (F1000)]

29. Beatriz Ibarra-Molero, Athi N. Naganathan, Jose M. Sanchez-Ruiz & Victor Muñoz (2016). Modern Analysis of Protein Folding by Differential Scanning Calorimetry. Methods Enzymol., 567, 281 – 318. 

2015

28. Athi N. Naganathan & David De Sancho (2015). Bridging Experiments and Native-Centric Simulations of a Downhill Folding Protein. J. Phys. Chem. B, 119, 14925–14933.  

27. Soundhararajan Gopi, Nandakumar Rajasekaran, Animesh Singh, Sayan Ranu & Athi N. Naganathan (2015). Energetic and Topological Determinants of a Phosphorylation-Induced Disorder-to-Order Protein Conformational Switch. Phys. Chem. Chem. Phys., 17, 27264-27269. 

26. Sneha Munshi & Athi N. Naganathan (2015). Imprints of Function on the Folding Landscape: Functional Role for an Intermediate in a Conserved Eukaryotic Binding Protein. Phys. Chem. Chem. Phys., 17, 11042 – 11052. 

25. Priyashree Chaudhary,  Athi N. Naganathan & M. Michael Gromiha (2015). Folding RaCe: A Robust Method for Predicting Changes in Protein Folding Rates upon Point Mutations. Bioinformatics pii: btv091.  

24. Athi N. Naganathan, Jose M. Sanchez-Ruiz, Sneha Munshi & Swaathiratna Suresh (2015). Are Protein Folding Intermediates the Evolutionary Consequence of Functional Constraints? J. Phys. Chem. B, 119, 1323–1333.  

2014

23. Athi N. Naganathan & Victor Muñoz (2014). Thermodynamics of Downhill Folding: Multi-Probe Analysis of PDD, a Protein that Folds Over a Marginal Free Energy Barrier. J. Phys. Chem. B, 118, 8982-8994. 

22. Abhishek Narayan & Athi N. Naganathan (2014). Evidence for the Sequential Folding Mechanism in RNase H from an Ensemble-Based Model. J. Phys. Chem. B, 118, 5050-5058. 

2013

21. Srinivasan Sivanandan & Athi N. Naganathan (2013). A Disorder-Induced Domino-Like Destabilization Mechanism Governs the Folding and Functional Dynamics of the Repeat Protein IkBa. PLoS Comput. Biol., 9(12): e1003403. 

20. Athi N. Naganathan & Modesto Orozco (2013). The Conformational Landscape of an Intrinsically Disordered DNA-Binding Domain of a Transcription Regulator. J. Phys. Chem. B, 117, 13842-13850. 

19. Athi N. Naganathan (2013). Coarse-Grained Models of Protein Folding as Detailed Tools to Connect with Experiments. WIREs: Comput. Mol. Sci., 3, 504-514. 

18. Athi N. Naganathan (2013). A Rapid, Ensemble and Free Energy Based Method for Engineering Protein Stabilities. J. Phys. Chem. B, 117, 4956-4964. 

2012

17. Athi N. Naganathan (2012). Predictions from an Ising-Like Statistical Mechanical Model on the Dynamic and Thermodynamic Effects of Protein Surface Electrostatics. J. Chem. Theory Comput., 8, 4646-4656.  

2011

16. Modesto Orozco, Laura Orellana, Adam Hospital, Athi N. Naganathan, Agusti Emperador, Oliver Carrillo & Josep L. Gelpí (2011). Coarse Grained Representation of Protein Flexibility: Foundations, Successes and Shortcomings. Adv. Protein Chem. Struct. Biol., 85, 183-215.  

15. Athi N. Naganathan, Raul-Perez Jimenez, Victor Muñoz & Jose M. Sanchez-Ruiz (2011). Estimation of Protein Folding Free Energy Barriers from Calorimetric Data by Multi-Model Bayesian Analysis. Phys. Chem. Chem. Phys., 13, 17064-17076. 

14. Athi N. Naganathan & Modesto Orozco (2011). The Protein Folding Transition-State Ensemble from a Gō-like Model. Phys. Chem. Chem. Phys., 13, 15166-15174. 

13. Athi N. Naganathan & Modesto Orozco (2011). The Native Ensemble and Folding of a Protein Molten-Globule: Functional Consequence of Downhill Folding. J. Am. Chem. Soc., 133, 12154-12161.  

12. Pierpaolo Bruscolini & Athi N. Naganathan (2011). Quantitative Prediction of Protein Folding Behaviors from a Simple Statistical Model. J. Am. Chem. Soc., 133, 5372-5379. 

2010

11. Athi N. Naganathan, Peng Li, Raul-Perez Jimenez, Jose M. Sanchez-Ruiz & Victor Muñoz (2010). Navigating the Downhill Protein Folding Regime via Structural Homologues. J. Am. Chem. Soc., 132, 11183-11190.  

10. Athi N. Naganathan & Victor Muñoz (2010). Insights into Protein Folding Mechanisms from Large-Scale Analysis of Mutational Effects. Proc. Natl. Acad. Sci. U.S.A., 107, 8611-8616. 

2009

9. Stephen J. Decamp, Athi N. Naganathan, Steven A. Waldauer, Olgica Bakajin & Lisa J. Lapidus (2009). Direct Observation of Downhill Folding of l-Repressor in a Microfluidic Mixer. Biophys. J., 97, 1772-1777.  

 8. Peng Li, Fabiana Y. Oliva, Athi N. Naganathan & Victor Muñoz (2009). Dynamics of One-State Downhill Protein Folding. Proc. Natl. Acad. Sci. U.S.A., 106, 103-108.  

2008

7. Victor Muñoz, Mourad Sadqi, Athi N. Naganathan & David de Sancho (2008). Exploiting the Downhill Folding Regime via Experiment. HFSP J., 2, 342-353.  

 6. Athi N. Naganathan & Victor Muñoz (2008). Determining Denaturation Midpoints in Multiprobe Equilibrium Protein Folding Experiments. Biochemistry, 47, 6752-6761.  

2007

5. Athi N. Naganathan, Urmi Doshi & Victor Muñoz (2007). Protein Folding Kinetics: Barrier Effects in Chemical and Thermal Denaturation Experiments. J. Am. Chem. Soc., 129, 5673-5682.  

 2006

4. Athi N. Naganathan, Urmi Doshi, Adam Fung, Mourad Sadqi & Victor Muñoz (2006). Dynamics, Energetics and Structure in Protein Folding. Biochemistry, 45, 8466-8475.  

2005

3. Athi N. Naganathan, Jose M. Sanchez-Ruiz & Victor Muñoz (2005). Direct Measurement of Barrier Heights in Protein Folding. J. Am. Chem. Soc., 127, 17970-17971.  

2. Athi N. Naganathan, Raul Perez-Jimenez, Jose M. Sanchez-Ruiz & Victor Muñoz (2005). Robustness of Downhill Folding: Guidelines for the Analysis of Equilibrium Folding Experiments on Small Proteins. Biochemistry, 44, 7435-7449.  

1. Athi N. Naganathan & Victor Muñoz (2005). Scaling of Folding Times with Protein Size. J. Am. Chem. Soc., 127, 480-481.