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  1. Article: Screening of caspase-3 inhibitors from natural molecule database using e-pharmacophore and docking studies.

    Eda, Sasidhar Reddy / Veeramachaneni, Ganesh Kumar / Bondili, Jayakumar Singh / Jinka, Rajeswari

    Bioinformation

    2019  Volume 15, Issue 4, Page(s) 240–245

    Abstract: Caspase a protease family member, have a vital role in cell death and inflammation process. Caspase-3, an effector caspase controls the regulation of apoptosis and has an anti apoptotic function. The mechanical significance of restoring apoptosis ... ...

    Abstract Caspase a protease family member, have a vital role in cell death and inflammation process. Caspase-3, an effector caspase controls the regulation of apoptosis and has an anti apoptotic function. The mechanical significance of restoring apoptosis signaling to selectively target malignant cells is utilized to develop strong therapeutic strategies by the caspase family of mortality - induction molecules. Caspase-3 has currently no clear role in treatment for tumor progression and tumor sensitivity. The present study was aimed to screen caspase for potential inhibitors using computer aided docking methodologies. For this, zinc natural molecule database molecules were screened using e-pharmacophore and ADME protocols along with docking studies. Docking analysis selected two molecules, namely ZINC13341044 and ZINC13507846 with G-scores -5.27 and -6.19 respectively. These two potential hits are predicted as caspase inhibitors based on the results and can be further processed for in vitro validation.
    Language English
    Publishing date 2019-03-31
    Publishing country Singapore
    Document type Journal Article
    ZDB-ID 2203786-X
    ISSN 0973-2063
    ISSN 0973-2063
    DOI 10.6026/97320630015240
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Structural and simulation analysis of hotspot residues interactions of SARS-CoV 2 with human ACE2 receptor.

    Veeramachaneni, Ganesh Kumar / Thunuguntla, V B S C / Bobbillapati, Janakiram / Bondili, Jayakumar Singh

    Journal of biomolecular structure & dynamics

    2020  Volume 39, Issue 11, Page(s) 4015–4025

    Abstract: The novel corona virus disease 2019 (SARS-CoV 2) pandemic outbreak was alarming. The binding of SARS-CoV (CoV) spike protein (S-Protein) Receptor Binding Domain (RBD) to Angiotensin converting enzyme 2 (ACE2) receptor initiates the entry of corona virus ... ...

    Abstract The novel corona virus disease 2019 (SARS-CoV 2) pandemic outbreak was alarming. The binding of SARS-CoV (CoV) spike protein (S-Protein) Receptor Binding Domain (RBD) to Angiotensin converting enzyme 2 (ACE2) receptor initiates the entry of corona virus into the host cells leading to the infection. However, considering the mutations reported in the SARS-CoV 2 (nCoV), the structural changes and the binding interactions of the S-protein RBD of nCoV were not clear. The present study was designed to elucidate the structural changes, hot spot binding residues and their interactions between the nCoV S-protein RBD and ACE2 receptor through computational approaches. Based on the sequence alignment, a total of 58 residues were found mutated in nCoV S-protein RBD. These mutations led to the structural changes in the nCoV S-protein RBD 3d structure with 4 helices, 10 sheets and intermittent loops. The nCoV RBD was found binding to ACE2 receptor with 11 hydrogen bonds and 1 salt bridge. The major hot spot amino acids involved in the binding identified by interaction analysis after simulations includes Glu 35, Tyr 83, Asp 38, Lys 31, Glu 37, His 34 amino acid residues of ACE2 receptor and Gln 493, Gln 498, Asn 487, Tyr 505 and Lys 417 residues in nCoV S-protein RBD. Based on the hydrogen bonding, RMSD and RMSF, total and potential energies, the nCoV was found binding to ACE2 receptor with higher stability and rigidity. Concluding, the hotspots information will be useful in designing blockers for the nCoV spike protein RBD. [Formula: see text]Communicated by Ramaswamy H. Sarma.
    MeSH term(s) Angiotensin-Converting Enzyme 2 ; COVID-19 ; Humans ; Protein Binding ; SARS-CoV-2 ; Severe Acute Respiratory Syndrome ; Spike Glycoprotein, Coronavirus/genetics ; Spike Glycoprotein, Coronavirus/metabolism
    Chemical Substances Spike Glycoprotein, Coronavirus ; Angiotensin-Converting Enzyme 2 (EC 3.4.17.23)
    Keywords covid19
    Language English
    Publishing date 2020-06-04
    Publishing country England
    Document type Journal Article
    ZDB-ID 49157-3
    ISSN 1538-0254 ; 0739-1102
    ISSN (online) 1538-0254
    ISSN 0739-1102
    DOI 10.1080/07391102.2020.1773318
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Specific panallergen peptide of Sorghum Polcalcin showing IgE response identified based on in silico and in vivo peptide mapping.

    Bokka, Chandra Sekhar / Veeramachaneni, Ganesh Kumar / Thunuguntla, V B S C / Manda, Naresh Kumar / Bondili, Jayakumar Singh

    Bioscience reports

    2019  Volume 39, Issue 11

    Abstract: In India, Sorghum plant allergenicity was reported to be approximately 54.9%. Sorghum bicolor Polcalcin (Sorb PC) was identified as the panallergen but the specificity of this allergen is yet to be characterized. The present study was aimed to ... ...

    Abstract In India, Sorghum plant allergenicity was reported to be approximately 54.9%. Sorghum bicolor Polcalcin (Sorb PC) was identified as the panallergen but the specificity of this allergen is yet to be characterized. The present study was aimed to characterize the antigenic determinants of Sorb PC that are responsible for eliciting the IgE response. In silico modeling, simulation studies and docking of Sorb PC peptides (PC1-11) against IgG and IgE followed by in vivo evaluation was adopted. Peptide docking studies revealed PC 6 with highest G-score -12.85 against IgE followed by PC-11, 5, 1 and 7 (-10.91) peptides. The mice sensitized with PC7 peptide showed interleukin (IL) 4 (IL-4), IL-5, IL-12, TNF-α and GMCSF levels increased when compared with other peptides and controls, signifying a strong T helper type 2 (Th2)-based response. In tandem, the T helper type 1 (Th1) pathway was inhibited by low levels of cytokine IL-2, interferon γ (IFN-γ) and increased IL-10 levels justifying the role of PC7 in allergic IgE response. Considering the above data of overlapping peptides of PC6 and PC7, N-terminal part of the PC7 peptide (DEVQRMM) is found to play a crucial role in Sorghum Polcalcin allergenic response.
    MeSH term(s) Allergens/immunology ; Animals ; Cytokines/immunology ; Epitopes/immunology ; Female ; Hypersensitivity/immunology ; Immunoglobulin E/immunology ; Immunoglobulin G/immunology ; India ; Interferon-gamma/immunology ; Interleukin-12/immunology ; Interleukin-4/immunology ; Mice ; Mice, Inbred BALB C ; Peptide Mapping/methods ; Peptides/immunology ; Sorghum/immunology ; Th1 Cells/immunology ; Th2 Cells/immunology
    Chemical Substances Allergens ; Cytokines ; Epitopes ; Immunoglobulin G ; Peptides ; Interleukin-12 (187348-17-0) ; Interleukin-4 (207137-56-2) ; Immunoglobulin E (37341-29-0) ; Interferon-gamma (82115-62-6)
    Language English
    Publishing date 2019-11-05
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 764946-0
    ISSN 1573-4935 ; 0144-8463
    ISSN (online) 1573-4935
    ISSN 0144-8463
    DOI 10.1042/BSR20191835
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Pharmacophore Directed Screening of Agonistic Natural Molecules Showing Affinity to 5HT

    Veeramachaneni, Ganesh Kumar / Thunuguntla, V B S C / Bhaswant, Maharshi / Mathai, Michael L / Bondili, Jayakumar Singh

    Biomolecules

    2019  Volume 9, Issue 10

    Abstract: Obesity prevalence continues to be a foremost health concern across the globe leading to the development of major health risk conditions like type II diabetes, hyperlipidemia, hypertension and even cancers. Because of the deprived drug-based management ... ...

    Abstract Obesity prevalence continues to be a foremost health concern across the globe leading to the development of major health risk conditions like type II diabetes, hyperlipidemia, hypertension and even cancers. Because of the deprived drug-based management system, there is an urgent need for the development of new drugs aiming at satiety and appetite control targets. Among the reported satiety signaling targets, 5HT
    MeSH term(s) Asparagine/metabolism ; Binding Sites ; Biological Products/chemistry ; Biological Products/pharmacology ; Computer Simulation ; Drug Design ; Humans ; Models, Molecular ; Molecular Docking Simulation ; Molecular Dynamics Simulation ; Molecular Structure ; Receptor, Serotonin, 5-HT2C/chemistry ; Receptor, Serotonin, 5-HT2C/metabolism ; Serotonin 5-HT2 Receptor Agonists/chemistry ; Serotonin 5-HT2 Receptor Agonists/pharmacology ; Zinc/chemistry
    Chemical Substances Biological Products ; HTR2C protein, human ; Receptor, Serotonin, 5-HT2C ; Serotonin 5-HT2 Receptor Agonists ; Asparagine (7006-34-0) ; Zinc (J41CSQ7QDS)
    Language English
    Publishing date 2019-10-01
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2701262-1
    ISSN 2218-273X ; 2218-273X
    ISSN (online) 2218-273X
    ISSN 2218-273X
    DOI 10.3390/biom9100556
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Structural and simulation analysis of hotspot residues interactions of SARS-CoV 2 with human ACE2 receptor

    Veeramachaneni, Ganesh Kumar / Thunuguntla, V. B. S. C. / Bobbillapati, Janakiram / Bondili, Jayakumar Singh

    Journal of Biomolecular Structure and Dynamics

    2020  , Page(s) 1–11

    Keywords Molecular Biology ; Structural Biology ; General Medicine ; covid19
    Language English
    Publisher Informa UK Limited
    Publishing country uk
    Document type Article ; Online
    ZDB-ID 49157-3
    ISSN 1538-0254 ; 0739-1102
    ISSN (online) 1538-0254
    ISSN 0739-1102
    DOI 10.1080/07391102.2020.1773318
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  6. Article ; Online: Peptide Mapping, In Silico and In Vivo Analysis of Allergenic Sorghum Profilin Peptides.

    Bokka, Chandra Sekhar / Veeramachaneni, Ganesh Kumar / Thunuguntla, V B S C / Bobbillapati, Janakiram / Bondili, Jayakumar Singh

    Medicina (Kaunas, Lithuania)

    2019  Volume 55, Issue 5

    Abstract: Background and objectives: Nearly 20-30% of the world's population suffers from allergic rhinitis, among them 15% are progressing to asthma conditions. : Materials and methods: To map the antigenic determinants responsible for IgE binding, the ... ...

    Abstract Background and objectives: Nearly 20-30% of the world's population suffers from allergic rhinitis, among them 15% are progressing to asthma conditions.
    Materials and methods: To map the antigenic determinants responsible for IgE binding, the present study is focused on in silico modeling, simulation of Sorb PF and docking of the Sorb PF peptides (PF1-6) against IgG and IgE, followed by in vivo evaluation of the peptides for its allergenicity in mice.
    Results: Peptide PF3 and PF4 displayed high docking G-scores (-9.05) against IgE only. The mice sensitized with PF3 peptide showed increased levels of IL5, IL12, TNF-alpha, and GMCSF when compared to other peptides and controls, signifying a strong, Th2-based response. Concurrently, the Th1 pathway was inhibited by low levels of cytokine IL2, IFN-γ, and IL-10 justifying the role of PF3 in allergenic IgE response.
    Conclusions: Based on the results of overlapping peptides PF3 and PF4, the N-terminal part of the PF3 peptide (TGQALVI) plays a crucial role in allergenic response of Sorghum profilin.
    MeSH term(s) Animals ; Computer Simulation ; Disease Models, Animal ; Epitopes/analysis ; Mice ; Peptide Mapping/methods ; Profilins/analysis ; Profilins/blood ; Sorghum/adverse effects ; Sorghum/cytology
    Chemical Substances Epitopes ; Profilins
    Language English
    Publishing date 2019-05-21
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2188113-3
    ISSN 1648-9144 ; 1010-660X
    ISSN (online) 1648-9144
    ISSN 1010-660X
    DOI 10.3390/medicina55050178
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article: Structural and simulation analysis of hotspot residues interactions of SARS-CoV 2 with human ACE2 receptor

    Veeramachaneni, Ganesh Kumar / Thunuguntla, V B S C / Bobbillapati, Janakiram / Bondili, Jayakumar Singh

    J Biomol Struct Dyn

    Abstract: The novel corona virus disease 2019 (SARS-CoV 2) pandemic outbreak was alarming. The binding of SARS-CoV (CoV) spike protein (S-Protein) Receptor Binding Domain (RBD) to Angiotensin converting enzyme 2 (ACE2) receptor initiates the entry of corona virus ... ...

    Abstract The novel corona virus disease 2019 (SARS-CoV 2) pandemic outbreak was alarming. The binding of SARS-CoV (CoV) spike protein (S-Protein) Receptor Binding Domain (RBD) to Angiotensin converting enzyme 2 (ACE2) receptor initiates the entry of corona virus into the host cells leading to the infection. However, considering the mutations reported in the SARS-CoV 2 (nCoV), the structural changes and the binding interactions of the S-protein RBD of nCoV were not clear. The present study was designed to elucidate the structural changes, hot spot binding residues and their interactions between the nCoV S-protein RBD and ACE2 receptor through computational approaches. Based on the sequence alignment, a total of 58 residues were found mutated in nCoV S-protein RBD. These mutations led to the structural changes in the nCoV S-protein RBD 3d structure with 4 helices, 10 sheets and intermittent loops. The nCoV RBD was found binding to ACE2 receptor with 11 hydrogen bonds and 1 salt bridge. The major hot spot amino acids involved in the binding identified by interaction analysis after simulations includes Glu 35, Tyr 83, Asp 38, Lys 31, Glu 37, His 34 amino acid residues of ACE2 receptor and Gln 493, Gln 498, Asn 487, Tyr 505 and Lys 417 residues in nCoV S-protein RBD. Based on the hydrogen bonding, RMSD and RMSF, total and potential energies, the nCoV was found binding to ACE2 receptor with higher stability and rigidity. Concluding, the hotspots information will be useful in designing blockers for the nCoV spike protein RBD. [Formula: see text]Communicated by Ramaswamy H. Sarma.
    Keywords covid19
    Publisher WHO
    Document type Article
    Note WHO #Covidence: #637972
    Database COVID19

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  8. Article ; Online: Palmitoylethanolamide (PEA) Inhibits SARS-CoV-2 Entry by Interacting with S Protein and ACE-2 Receptor.

    Fonnesu, Rossella / Thunuguntla, Venkata Bala Sai Chaitanya / Veeramachaneni, Ganesh Kumar / Bondili, Jayakumar Singh / La Rocca, Veronica / Filipponi, Carolina / Spezia, Pietro Giorgio / Sidoti, Maria / Plicanti, Erika / Quaranta, Paola / Freer, Giulia / Pistello, Mauro / Mathai, Michael Lee / Lai, Michele

    Viruses

    2022  Volume 14, Issue 5

    Abstract: Lipids play a crucial role in the entry and egress of viruses, regardless of whether they are naked or enveloped. Recent evidence shows that lipid involvement in viral infection goes much further. During replication, many viruses rearrange internal lipid ...

    Abstract Lipids play a crucial role in the entry and egress of viruses, regardless of whether they are naked or enveloped. Recent evidence shows that lipid involvement in viral infection goes much further. During replication, many viruses rearrange internal lipid membranes to create niches where they replicate and assemble. Because of the close connection between lipids and inflammation, the derangement of lipid metabolism also results in the production of inflammatory stimuli. Due to its pivotal function in the viral life cycle, lipid metabolism has become an area of intense research to understand how viruses seize lipids and to design antiviral drugs targeting lipid pathways. Palmitoylethanolamide (PEA) is a lipid-derived peroxisome proliferator-activated receptor-α (PPAR-α) agonist that also counteracts SARS-CoV-2 entry and its replication. Our work highlights for the first time the antiviral potency of PEA against SARS-CoV-2, exerting its activity by two different mechanisms. First, its binding to the SARS-CoV-2 S protein causes a drop in viral infection of ~70%. We show that this activity is specific for SARS-CoV-2, as it does not prevent infection by VSV or HSV-2, other enveloped viruses that use different glycoproteins and entry receptors to mediate their entry. Second, we show that in infected Huh-7 cells, treatment with PEA dismantles lipid droplets, preventing the usage of these vesicular bodies by SARS-CoV-2 as a source of energy and protection against innate cellular defenses. This is not surprising since PEA activates PPAR-α, a transcription factor that, once activated, generates a cascade of events that leads to the disruption of fatty acid droplets, thereby bringing about lipid droplet degradation through β-oxidation. In conclusion, the present work demonstrates a novel mechanism of action for PEA as a direct and indirect antiviral agent against SARS-CoV-2. This evidence reinforces the notion that treatment with this compound might significantly impact the course of COVID-19. Indeed, considering that the protective effects of PEA in COVID-19 are the current objectives of two clinical trials (NCT04619706 and NCT04568876) and given the relative lack of toxicity of PEA in humans, further preclinical and clinical tests will be needed to fully consider PEA as a promising adjuvant therapy in the current COVID-19 pandemic or against emerging RNA viruses that share the same route of replication as coronaviruses.
    MeSH term(s) Amides ; Antiviral Agents/pharmacology ; Antiviral Agents/therapeutic use ; Ethanolamines ; Humans ; Palmitic Acids/pharmacology ; Pandemics ; Pisum sativum ; Peroxisome Proliferator-Activated Receptors ; SARS-CoV-2 ; Spike Glycoprotein, Coronavirus ; COVID-19 Drug Treatment
    Chemical Substances Amides ; Antiviral Agents ; Ethanolamines ; Palmitic Acids ; Peroxisome Proliferator-Activated Receptors ; Spike Glycoprotein, Coronavirus ; spike protein, SARS-CoV-2 ; palmidrol (6R8T1UDM3V)
    Language English
    Publishing date 2022-05-17
    Publishing country Switzerland
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2516098-9
    ISSN 1999-4915 ; 1999-4915
    ISSN (online) 1999-4915
    ISSN 1999-4915
    DOI 10.3390/v14051080
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: In vitro and in silico characterization of angiogenic inhibitors from Sophora interrupta.

    Mathi, Pardhasaradhi / Veeramachaneni, Ganesh Kumar / Raj, K Kranthi / Talluri, Venkateswara Rao / Bokka, Venkata Raman / Botlagunta, Mahendran

    Journal of molecular modeling

    2016  Volume 22, Issue 10, Page(s) 247

    Abstract: Sophora interrupta Bedd, (Fabaceae) is used in Indian folk medicine to treat cancer. Angiogenesis is one of the crucial characteristics of cancer metastasis and is regulated by vascular endothelial growth factor (VEGF). In this study, we examined the ... ...

    Abstract Sophora interrupta Bedd, (Fabaceae) is used in Indian folk medicine to treat cancer. Angiogenesis is one of the crucial characteristics of cancer metastasis and is regulated by vascular endothelial growth factor (VEGF). In this study, we examined the antiangiogenic properties of the root ethyl acetate extract of Sophora interrupta by various methods. In vitro antioxidant activity (100-600 μg/ml) of S. interrupta ethyl acetate (SEA) extract was evaluated by DPPH and ABTS, anti-inflammatory activity (50, 100 and 150 μg/ml) by estimating nitric oxide (NO) levels, anti-angiogenic activity (200 and 500 μg/ml) was validated by chorio allantoic membrane (CAM) assay and in silico molecular dynamic (MD) simulations analyses (25 ns) were performed to identify the anti-angiogenic compounds extracted from root extract. The antioxidative activity of SEA extract at IC
    Language English
    Publishing date 2016-10
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 1284729-x
    ISSN 0948-5023 ; 1610-2940
    ISSN (online) 0948-5023
    ISSN 1610-2940
    DOI 10.1007/s00894-016-3102-1
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: Peptide Mapping, In Silico and In Vivo Analysis of Allergenic Sorghum Profilin Peptides

    Chandra Sekhar Bokka / Ganesh Kumar Veeramachaneni / V. B. S. C. Thunuguntla / Janakiram Bobbillapati / Jayakumar Singh Bondili

    Medicina, Vol 55, Iss 5, p

    2019  Volume 178

    Abstract: Background and objectives : Nearly 20−30% of the world’s population suffers from allergic rhinitis, among them 15% are progressing to asthma conditions. Sorghum bicolor profilin (Sorb PF), one of the panallergens, was identified, but the allergen ... ...

    Abstract Background and objectives : Nearly 20−30% of the world’s population suffers from allergic rhinitis, among them 15% are progressing to asthma conditions. Sorghum bicolor profilin (Sorb PF), one of the panallergens, was identified, but the allergen specificity is not yet characterized. Materials and Methods : To map the antigenic determinants responsible for IgE binding, the present study is focused on in silico modeling, simulation of Sorb PF and docking of the Sorb PF peptides (PF1-6) against IgG and IgE, followed by in vivo evaluation of the peptides for its allergenicity in mice. Results : Peptide PF3 and PF4 displayed high docking G-scores (−9.05) against IgE only. The mice sensitized with PF3 peptide showed increased levels of IL5, IL12, TNF-alpha, and GMCSF when compared to other peptides and controls, signifying a strong, Th2-based response. Concurrently, the Th1 pathway was inhibited by low levels of cytokine IL2, IFN-γ, and IL-10 justifying the role of PF3 in allergenic IgE response. Conclusions : Based on the results of overlapping peptides PF3 and PF4, the N-terminal part of the PF3 peptide (TGQALVI) plays a crucial role in allergenic response of Sorghum profilin.
    Keywords Sorghum ; pollen allergen ; profilin ; peptide mapping ; modeling ; Th1 and Th2 cytokine ; Medicine (General) ; R5-920
    Subject code 610
    Language English
    Publishing date 2019-05-01T00:00:00Z
    Publisher MDPI AG
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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