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  1. Article: Identification of inhibitors against SARS-CoV-2 variants of concern using virtual screening and metadynamics-based enhanced sampling.

    Mandal, Nabanita / Rath, Soumya Lipsa

    Chemical physics

    2023  Volume 573, Page(s) 111995

    Abstract: Among the variants of SARS-CoV-2, some are more infectious than the Wild-type. Interestingly, these mutations enable the virus to evade the therapeutic efforts. Hence, there is a need for candidate drug molecules that can potently bind with all the ... ...

    Abstract Among the variants of SARS-CoV-2, some are more infectious than the Wild-type. Interestingly, these mutations enable the virus to evade the therapeutic efforts. Hence, there is a need for candidate drug molecules that can potently bind with all the variants. We have adopted a strategy combining virtual screening, molecular docking followed by rigorous sampling by metadynamics simulations to find candidate molecules. From our results we found four highly potent drug candidates that can bind to the Spike-RBD of all the variants of the virus. Additionally, we also found that certain signature residues on the RBM region commonly bind to each of these inhibitors. Thus, our study not only gives information on the chemical compounds, but also residues on the proteins which could be targeted for future drug and vaccine development studies.
    Language English
    Publishing date 2023-06-14
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 184594-9
    ISSN 0301-0104
    ISSN 0301-0104
    DOI 10.1016/j.chemphys.2023.111995
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Mutations in V84I & A184V of

    Banerjee, Devjani / Rath, Soumya Lipsa / Darji, Siddhi A / Mandal, Nabanita

    Journal of biomolecular structure & dynamics

    2023  , Page(s) 1–13

    Abstract: ... ...

    Abstract The
    Language English
    Publishing date 2023-12-08
    Publishing country England
    Document type Journal Article
    ZDB-ID 49157-3
    ISSN 1538-0254 ; 0739-1102
    ISSN (online) 1538-0254
    ISSN 0739-1102
    DOI 10.1080/07391102.2023.2291168
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Delineating the Structure–Dynamics–Binding Differences among BA.1, BA.4/5, and BF.7 SARS-CoV‑2 Variants through Atomistic Simulations

    Aryaman Joshi / Shweata Maurya / Atharva Mahale / Soumya Lipsa Rath / Timir Tripathi / Aditya K. Padhi

    ACS Omega, Vol 8, Iss 41, Pp 37852-

    Correlation with Structural and Epidemiological Features

    2023  Volume 37863

    Keywords Chemistry ; QD1-999
    Language English
    Publishing date 2023-10-01T00:00:00Z
    Publisher American Chemical Society
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  4. Article ; Online: Multitarget Potential Drug Candidates for High-Grade Gliomas Identified by Multiple Reaction Monitoring Coupled with

    Verma, Ayushi / Patel, Rushda / Mahale, Atharva / Thorat, Rujuta Vijay / Rath, Soumya Lipsa / Sridhar, Epari / Moiyadi, Aliasgar / Srivastava, Sanjeeva

    Omics : a journal of integrative biology

    2024  Volume 28, Issue 2, Page(s) 59–75

    Abstract: High-grade gliomas (HGGs) are extremely aggressive primary brain tumors with high mortality rates. Despite notable progress achieved by clinical research and biomarkers emerging from proteomics studies, efficacious drugs and therapeutic targets are ... ...

    Abstract High-grade gliomas (HGGs) are extremely aggressive primary brain tumors with high mortality rates. Despite notable progress achieved by clinical research and biomarkers emerging from proteomics studies, efficacious drugs and therapeutic targets are limited. This study used targeted proteomics,
    MeSH term(s) Humans ; Temozolomide/pharmacology ; Molecular Docking Simulation ; Drug Repositioning/methods ; Glioma/drug therapy ; Indazoles ; Pyrimidines ; Sulfonamides
    Chemical Substances pazopanib (7RN5DR86CK) ; Temozolomide (YF1K15M17Y) ; Indazoles ; Pyrimidines ; Sulfonamides
    Language English
    Publishing date 2024-02-06
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2030312-9
    ISSN 1557-8100 ; 1536-2310
    ISSN (online) 1557-8100
    ISSN 1536-2310
    DOI 10.1089/omi.2023.0256
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Molecular insights into the differential dynamics of SARS-CoV-2 variants of concern.

    Mandal, Nabanita / Padhi, Aditya K / Rath, Soumya Lipsa

    Journal of molecular graphics & modelling

    2022  Volume 114, Page(s) 108194

    Abstract: Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) has affected the lives and livelihood of millions of individuals around the world. It has mutated several times after its first inception, with an estimated two mutations occurring every month. ...

    Abstract Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) has affected the lives and livelihood of millions of individuals around the world. It has mutated several times after its first inception, with an estimated two mutations occurring every month. Although we have been successful in developing vaccines against the virus, the emergence of variants has enabled it to escape therapy. Few of the generated variants are also reported to be more infectious than the wild-type (WT). In this study, we analyze the attributes of all RBD/ACE2 complexes for the reported VOCs, namely, Alpha, Beta, Gamma, and Delta through computer simulations. Results indicate differences in orientation and binding energies of the VOCs from the WT. Overall, it was observed that electrostatic interactions play a major role in the binding of the complexes. Detailed residue level energetics revealed that the most prominent changes in interaction energies were seen particularly at the mutated residues which were present at RBD/ACE2 interface. We found that the Delta variant is one of the most tightly bound variants of SARS-CoV-2 with dynamics similar to WT. The high binding affinity of RBD towards ACE2 is indicative of an increase in viral transmission and infectivity. The details presented in our study provide additional information for the design and development of effective therapeutic strategies for the emerging variants of the virus in the future.
    MeSH term(s) Angiotensin-Converting Enzyme 2 ; COVID-19 ; Humans ; Molecular Dynamics Simulation ; Mutation ; Protein Binding ; SARS-CoV-2/genetics ; Spike Glycoprotein, Coronavirus/genetics ; Spike Glycoprotein, Coronavirus/metabolism
    Chemical Substances Spike Glycoprotein, Coronavirus ; spike protein, SARS-CoV-2 ; Angiotensin-Converting Enzyme 2 (EC 3.4.17.23)
    Language English
    Publishing date 2022-04-14
    Publishing country United States
    Document type Journal Article ; Research Support, U.S. Gov't, Non-P.H.S. ; Research Support, Non-U.S. Gov't
    ZDB-ID 1396450-1
    ISSN 1873-4243 ; 1093-3263
    ISSN (online) 1873-4243
    ISSN 1093-3263
    DOI 10.1016/j.jmgm.2022.108194
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Scanning the RBD-ACE2 molecular interactions in Omicron variant.

    Rath, Soumya Lipsa / Padhi, Aditya K / Mandal, Nabanita

    Biochemical and biophysical research communications

    2022  Volume 592, Page(s) 18–23

    Abstract: The emergence of new SARS-CoV-2 variants poses a threat to the human population where it is difficult to assess the severity of a particular variant of the virus. Spike protein and specifically its receptor binding domain (RBD) which makes direct ... ...

    Abstract The emergence of new SARS-CoV-2 variants poses a threat to the human population where it is difficult to assess the severity of a particular variant of the virus. Spike protein and specifically its receptor binding domain (RBD) which makes direct interaction with the ACE2 receptor of the human has shown prominent amino acid substitutions in most of the Variants of Concern. Here, by using all-atom molecular dynamics simulations we compare the interaction of Wild-type RBD/ACE2 receptor complex with that of the latest Omicron variant of the virus. We observed a very interesting diversification of the charge, dynamics and energetics of the protein complex formed upon mutations. These results would help us in understanding the molecular basis of binding of the Omicron variant with that of SARS-CoV-2 Wild-type.
    MeSH term(s) Amino Acid Substitution ; Angiotensin-Converting Enzyme 2/chemistry ; Angiotensin-Converting Enzyme 2/metabolism ; COVID-19/metabolism ; COVID-19/virology ; Host Microbial Interactions/genetics ; Host Microbial Interactions/physiology ; Humans ; Molecular Dynamics Simulation ; Pandemics ; Protein Binding ; Protein Interaction Domains and Motifs ; SARS-CoV-2/chemistry ; SARS-CoV-2/genetics ; SARS-CoV-2/metabolism ; Spike Glycoprotein, Coronavirus/chemistry ; Spike Glycoprotein, Coronavirus/genetics ; Spike Glycoprotein, Coronavirus/metabolism ; Static Electricity
    Chemical Substances Spike Glycoprotein, Coronavirus ; spike protein, SARS-CoV-2 ; ACE2 protein, human (EC 3.4.17.23) ; Angiotensin-Converting Enzyme 2 (EC 3.4.17.23)
    Language English
    Publishing date 2022-01-06
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't ; Research Support, U.S. Gov't, Non-P.H.S.
    ZDB-ID 205723-2
    ISSN 1090-2104 ; 0006-291X ; 0006-291X
    ISSN (online) 1090-2104 ; 0006-291X
    ISSN 0006-291X
    DOI 10.1016/j.bbrc.2022.01.006
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: How Does Temperature Affect the Dynamics of SARS-CoV-2 M Proteins? Insights from Molecular Dynamics Simulations.

    Rath, Soumya Lipsa / Tripathy, Madhusmita / Mandal, Nabanita

    The Journal of membrane biology

    2022  Volume 255, Issue 2-3, Page(s) 341–356

    Abstract: Enveloped viruses, in general, have several transmembrane proteins and glycoproteins, which assist the virus in entry and attachment onto the host cells. These proteins also play a significant role in determining the shape and size of the newly formed ... ...

    Abstract Enveloped viruses, in general, have several transmembrane proteins and glycoproteins, which assist the virus in entry and attachment onto the host cells. These proteins also play a significant role in determining the shape and size of the newly formed virus particles. The lipid membrane and the embedded proteins affect each other in non-trivial ways during the course of the viral life cycle. Unraveling the nature of the protein-protein and protein-lipid interactions, under various environmental and physiological conditions, could therefore prove to be crucial in development of therapeutics. Here, we study the M protein of SARS-CoV-2 to understand the effect of temperature on the properties of the protein-membrane system. The membrane-embedded dimeric M proteins were studied using atomistic and coarse-grained molecular dynamics simulations at temperatures ranging between 10 and 50 °C. While temperature-induced fluctuations are expected to be monotonic, we observe a steady rise in the protein dynamics up to 40 °C, beyond which it surprisingly reverts back to the low-temperature behavior. Detailed investigation reveals disordering of the membrane lipids in the presence of the protein, which induces additional curvature around the transmembrane region. Coarse-grained simulations indicate temperature-dependent aggregation of M protein dimers. Our study clearly indicates that the dynamics of membrane lipids and integral M protein of SARS-CoV-2 enables it to better associate and aggregate only at a certain temperature range (i.e., ~ 30-40 °C). This can have important implications in the protein aggregation and subsequent viral budding/fission processes.
    MeSH term(s) COVID-19 ; Humans ; Membrane Lipids ; Molecular Dynamics Simulation ; SARS-CoV-2 ; Temperature
    Chemical Substances Membrane Lipids
    Language English
    Publishing date 2022-05-13
    Publishing country United States
    Document type Journal Article ; Research Support, U.S. Gov't, Non-P.H.S.
    ZDB-ID 3082-x
    ISSN 1432-1424 ; 0022-2631
    ISSN (online) 1432-1424
    ISSN 0022-2631
    DOI 10.1007/s00232-022-00244-y
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: MoS

    Bisht, Deepali / Rath, Soumya Lipsa / Roy, Shounak / Jaiswal, Amit

    Soft matter

    2022  Volume 18, Issue 47, Page(s) 8961–8973

    Abstract: The use of nanotechnology is becoming increasingly significant as a tool that can provide a range of options for the identification, inactivation, and therapy of coronavirus disease 2019 (COVID-19). The potential of nanoparticles as an alternative ... ...

    Abstract The use of nanotechnology is becoming increasingly significant as a tool that can provide a range of options for the identification, inactivation, and therapy of coronavirus disease 2019 (COVID-19). The potential of nanoparticles as an alternative therapeutic agent to inactivate SARS-CoV-2 is continually being investigated. Herein, we have explored the interaction of 2D molybdenum disulfide (MoS
    MeSH term(s) Humans ; Spike Glycoprotein, Coronavirus ; Molecular Docking Simulation ; Molybdenum ; SARS-CoV-2 ; COVID-19
    Chemical Substances spike protein, SARS-CoV-2 ; Spike Glycoprotein, Coronavirus ; Molybdenum (81AH48963U)
    Language English
    Publishing date 2022-12-07
    Publishing country England
    Document type Journal Article
    ZDB-ID 2191476-X
    ISSN 1744-6848 ; 1744-683X
    ISSN (online) 1744-6848
    ISSN 1744-683X
    DOI 10.1039/d2sm01181f
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article: Scanning the RBD-ACE2 molecular interactions in Omicron variant

    Rath, Soumya Lipsa / Padhi, Aditya K. / Mandal, Nabanita

    Biochemical and biophysical research communications. 2022 Feb. 12, v. 592

    2022  

    Abstract: The emergence of new SARS-CoV-2 variants poses a threat to the human population where it is difficult to assess the severity of a particular variant of the virus. Spike protein and specifically its receptor binding domain (RBD) which makes direct ... ...

    Abstract The emergence of new SARS-CoV-2 variants poses a threat to the human population where it is difficult to assess the severity of a particular variant of the virus. Spike protein and specifically its receptor binding domain (RBD) which makes direct interaction with the ACE2 receptor of the human has shown prominent amino acid substitutions in most of the Variants of Concern. Here, by using all-atom molecular dynamics simulations we compare the interaction of Wild-type RBD/ACE2 receptor complex with that of the latest Omicron variant of the virus. We observed a very interesting diversification of the charge, dynamics and energetics of the protein complex formed upon mutations. These results would help us in understanding the molecular basis of binding of the Omicron variant with that of SARS-CoV-2 Wild-type.
    Keywords Severe acute respiratory syndrome coronavirus 2 ; amino acids ; human population ; humans ; molecular dynamics ; research ; viruses
    Language English
    Dates of publication 2022-0212
    Size p. 18-23.
    Publishing place Elsevier Inc.
    Document type Article
    ZDB-ID 205723-2
    ISSN 0006-291X ; 0006-291X
    ISSN (online) 0006-291X
    ISSN 0006-291X
    DOI 10.1016/j.bbrc.2022.01.006
    Database NAL-Catalogue (AGRICOLA)

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  10. Article ; Online: Investigation of the Effect of Temperature on the Structure of SARS-CoV-2 Spike Protein by Molecular Dynamics Simulations

    Soumya Lipsa Rath / Kishant Kumar

    Frontiers in Molecular Biosciences, Vol

    2020  Volume 7

    Abstract: Statistical and epidemiological data imply temperature sensitivity of the SARS-CoV-2 coronavirus. However, the molecular level understanding of the virus structure at different temperature is still not clear. Spike protein is the outermost structural ... ...

    Abstract Statistical and epidemiological data imply temperature sensitivity of the SARS-CoV-2 coronavirus. However, the molecular level understanding of the virus structure at different temperature is still not clear. Spike protein is the outermost structural protein of the SARS-CoV-2 virus which interacts with the Angiotensin Converting Enzyme 2 (ACE2), a human receptor, and enters the respiratory system. In this study, we performed an all atom molecular dynamics simulation to study the effect of temperature on the structure of the Spike protein. After 200 ns of simulation at different temperatures, we came across some interesting phenomena exhibited by the protein. We found that the solvent exposed domain of Spike protein, namely S1, is more mobile than the transmembrane domain, S2. Structural studies implied the presence of several charged residues on the surface of N-terminal Domain of S1 which are optimally oriented at 10–30°C. Bioinformatics analyses indicated that it is capable of binding to other human receptors and should not be disregarded. Additionally, we found that receptor binding motif (RBM), present on the receptor binding domain (RBD) of S1, begins to close around temperature of 40°C and attains a completely closed conformation at 50°C. We also found that the presence of glycan moieties did not influence the observed protein dynamics. Nevertheless, the closed conformation disables its ability to bind to ACE2, due to the burying of its receptor binding residues. Our results clearly show that there are active and inactive states of the protein at different temperatures. This would not only prove beneficial for understanding the fundamental nature of the virus, but would be also useful in the development of vaccines and therapeutics.
    Keywords structural protein ; receptor binding motif ; N-terminal domain ; closed conformation ; temperature-sensitive ; Biology (General) ; QH301-705.5 ; covid19
    Subject code 612
    Language English
    Publishing date 2020-10-01T00:00:00Z
    Publisher Frontiers Media S.A.
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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