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Prathaban M, Prathiviraj R, Ravichandran M, Natarajan SD, Sobanaa M, Hari Krishna Kumar S, Chandrasekar V, Selvin J. Isoptericola haloaureus sp. nov., a dimorphic actinobacterium isolated from mangrove sediments of southeast India, implicating biosaline agricultural significance through nitrogen fixation and salt tolerance genes. Antonie Van Leeuwenhoek 2024; 117:89. [PMID: 38861000 DOI: 10.1007/s10482-024-01985-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Accepted: 05/25/2024] [Indexed: 06/12/2024]
Abstract
Strain MP-1014T, an obligate halophilic actinobacterium, was isolated from the mangrove soil of Thandavarayancholanganpettai, Tamil Nadu, India. A polyphasic approach was utilized to explore its phylogenetic position completely. The isolate was Gram-positive, filamentous, non-motile, and coccoid in older cultures. Ideal growth conditions were seen at 30 °C and pH 7.0, with 5% NaCl (W/V), and the DNA G + C content was 73.3%. The phylogenic analysis of this strain based upon 16S rRNA gene sequence revealed 97-99.8% similarity to the recognized species of the genus Isoptericola. Strain MP-1014T exhibits the highest similarity to I. sediminis JC619T (99.7%), I. chiayiensis KCTC19740T (98.9%), and subsequently to I. halotolerans KCTC19646T (98.6%), when compared with other members within the Isoptericola genus (< 98%). ANI scores of strain MP-1014T are 86.4%, 84.2%, and 81.5% and dDDH values are 59.7%, 53.6%, and 34.8% with I. sediminis JC619T, I. chiayiensis KCTC19740T and I. halotolerans KCTC19646T respectively. The major polar lipids of the strain MP-1014T were phosphatidylinositol, phosphatidylglycerol, diphosphotidylglycerol, two unknown phospholipids, and glycolipids. The predominant respiratory menaquinones were MK9 (H4) and MK9 (H2). The major fatty acids were anteiso-C15:0, anteiso-C17:0, iso-C14:0, C15:0, and C16:0. Also, initial genome analysis of the organism suggests it as a biostimulant for enhancing agriculture in saline environments. Based on phenotypic and genetic distinctiveness, the strain MP-1014 T represents the novel species of the genus Isoptericola assigned Isoptericola haloaureus sp. nov., is addressed by the strain MP-1014 T, given its phenotypic, phylogenetic, and hereditary uniqueness. The type strain is MP-1014T [(NCBI = OP672482.1 = GCA_036689775.1) ATCC = BAA 2646T; DSMZ = 29325T; MTCC = 13246T].
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Affiliation(s)
- Munisamy Prathaban
- Department of Microbiology, Pondicherry University, Puducherry, 605014, India.
| | | | - Mythili Ravichandran
- Department of Microbiology, Vivekanandha Arts and Science College for Women, Sankagiri, Tamil Nadu, India
| | - Sharmila Devi Natarajan
- School of Biosciences, Mar Athanasios College for Advanced Studies, Thiruvalla, Kerala, India
| | - Murugesan Sobanaa
- Department of Microbiology, Pondicherry University, Puducherry, 605014, India
| | | | | | - Joseph Selvin
- Department of Microbiology, Pondicherry University, Puducherry, 605014, India
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Jain A, Sharma R, Gautam L, Shrivastava P, Singh KK, Vyas SP. Biomolecular interactions between Plasmodium and human host: A basis of targeted antimalarial therapy. ANNALES PHARMACEUTIQUES FRANÇAISES 2024; 82:401-419. [PMID: 38519002 DOI: 10.1016/j.pharma.2024.03.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2023] [Revised: 03/12/2024] [Accepted: 03/18/2024] [Indexed: 03/24/2024]
Abstract
Malaria is one of the serious health concerns worldwide as it remains a clinical challenge due to the complex life cycle of the malaria parasite and the morphological changes it undergoes during infection. The malaria parasite multiplies rapidly and spreads in the population by changing its alternative hosts. These various morphological stages of the parasite in the human host cause clinical symptoms (anemia, fever, and coma). These symptoms arise due to the preprogrammed biology of the parasite in response to the human pathophysiological response. Thus, complete elimination becomes one of the major health challenges. Although malaria vaccine(s) are available in the market, they still contain to cause high morbidity and mortality. Therefore, an approach for eradication is needed through the exploration of novel molecular targets by tracking the epidemiological changes the parasite adopts. This review focuses on the various novel molecular targets.
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Affiliation(s)
- Anamika Jain
- Drug Delivery and Research Laboratory, Department of Pharmaceutical Sciences, Dr. Harisingh Gour University, Sagar, M.P., 470003, India
| | - Rajeev Sharma
- Amity Institute of Pharmacy, Amity University Madhya Pradesh, Gwalior, M.P., 474005, India.
| | - Laxmikant Gautam
- Babulal Tarabai Institute of Pharmaceutical Science, Sagar, M.P., 470228, India
| | - Priya Shrivastava
- Drug Delivery and Research Laboratory, Department of Pharmaceutical Sciences, Dr. Harisingh Gour University, Sagar, M.P., 470003, India
| | - Kamalinder K Singh
- School of Pharmacy and Biomedical Sciences, Faculty of Clinical and Biomedical Sciences, University of Central Lancashire, Preston PR1 2HE, United Kingdom
| | - Suresh P Vyas
- Drug Delivery and Research Laboratory, Department of Pharmaceutical Sciences, Dr. Harisingh Gour University, Sagar, M.P., 470003, India.
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Hussain A, Kumar SHK, Prathiviraj R, Kumar AA, Renjith K, Kiran GS, Selvin J. The genome of Symbiodiniaceae-associated Stutzerimonas frequens CAM01 reveals a broad spectrum of antibiotic resistance genes indicating anthropogenic drift in the Palk Bay coral reef of south-eastern India. Arch Microbiol 2023; 205:319. [PMID: 37626254 DOI: 10.1007/s00203-023-03656-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Accepted: 08/09/2023] [Indexed: 08/27/2023]
Abstract
An increase in antibiotic pollution in reef areas will lead to the emergence of antibiotic-resistant bacteria, leading to ecological disturbances in the sensitive coral holobiont. This study provides insights into the genome of antibiotics-resistant Stutzerimonas frequens CAM01, isolated from Favites-associated Symbiodiniaceae of a near-shore polluted reef of Palk Bay, India. The draft genome contains 4.67 Mbp in size with 52 contigs. Further genome analysis revealed the presence of four antibiotic-resistant genes, namely, adeF, rsmA, APH (3")-Ib, and APH (6)-Id that provide resistance by encoding resistance-nodulation-cell division (RND) antibiotic efflux pump and aminoglycoside phosphotransferase. The isolate showed resistance against 73% of the antibiotics tested, concurrent with the predicted AMR genes. Four secondary metabolites, namely Aryl polyene, NRPS-independent-siderophore, terpenes, and ectoine were detected in the isolate, which may play a role in virulence and pathogenicity adaptation in microbes. This study provides key insights into the genome of Stutzerimonas frequens CAM01 and highlights the emergence of antibiotic-resistant bacteria in coral reef ecosystems.
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Grants
- BT/PR40420/NDB/39/741/2020. Department of Biotechnology, Ministry of Science and Technology, India
- BT/PR40420/NDB/39/741/2020. Department of Biotechnology, Ministry of Science and Technology, India
- BT/PR40420/NDB/39/741/2020. Department of Biotechnology, Ministry of Science and Technology, India
- BT/PR40420/NDB/39/741/2020. Department of Biotechnology, Ministry of Science and Technology, India
- BT/PR40420/NDB/39/741/2020. Department of Biotechnology, Ministry of Science and Technology, India
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Affiliation(s)
- Afreen Hussain
- Department of Microbiology, Pondicherry University, Kalapet, Puducherry, 605014, India
| | - S Hari Krishna Kumar
- Department of Microbiology, Pondicherry University, Kalapet, Puducherry, 605014, India
| | - R Prathiviraj
- Department of Microbiology, Pondicherry University, Kalapet, Puducherry, 605014, India
| | - Ashish Ashwin Kumar
- Department of Microbiology, Pondicherry University, Kalapet, Puducherry, 605014, India
| | - Kalyani Renjith
- Department of Microbiology, Pondicherry University, Kalapet, Puducherry, 605014, India
| | - G Seghal Kiran
- Department of Food Science and Technology, School of Life Sciences, Pondicherry University, Puducherry, India
| | - Joseph Selvin
- Department of Microbiology, Pondicherry University, Kalapet, Puducherry, 605014, India.
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Inter and intra-specific relationship between goat fishes Upeneus vittatus (Forsskal, 1775) and Upeneus tragula based on their mtCOI gene from Palk Bay and Gulf of Mannar Coast (Mandapam, Tamil Nadu) of India. GENE REPORTS 2022. [DOI: 10.1016/j.genrep.2022.101713] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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A hijack mechanism of Indian SARS-CoV-2 isolates for relapsing contemporary antiviral therapeutics. Comput Biol Med 2021; 132:104315. [PMID: 33705994 PMCID: PMC7935700 DOI: 10.1016/j.compbiomed.2021.104315] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Accepted: 03/02/2021] [Indexed: 12/16/2022]
Abstract
Coronavirus disease (COVID-19) rapidly expands to a global pandemic and its impact on public health varies from country to country. It is caused by a new virus severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). It is imperative for relapsing current antiviral therapeutics owing to randomized genetic drift in global SARS-CoV-2 isolates. A molecular mechanism behind the emerging genomic variants is not yet understood for the prioritization of selective antivirals. The present computational study was aimed to repurpose existing antivirals for Indian SARS-CoV-2 isolates by uncovering a hijack mechanism based on structural and functional characteristics of protein variants. Forty-one protein mutations were identified in 12 Indian SARS-CoV-2 isolates by analysis of genome variations across 460 genome sequences obtained from 30 geographic sites in India. Two unique mutations such as W6152R and N5928H found in exonuclease of Surat (GBRC275b) and Gandhinagar (GBRC239) isolates. We report for the first time the impact of folding rate on stabilizing/retaining a sequence-structure-function-virulence link of emerging protein variants leading to accommodate hijack ability from current antivirals. Binding affinity analysis revealed the effect of point mutations on virus infectivity and the drug-escaping efficiency of Indian isolates. Emodin and artinemol suggested herein as repurposable antivirals for the treatment of COVID-19 patients infected with Indian isolates. Our study concludes that a protein folding rate is a key structural and evolutionary determinant to enhance the receptor-binding specificity and ensure hijack ability from the prevalent antiviral therapeutics.
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Sándor AD, Péter Á, Corduneanu A, Barti L, Csősz I, Kalmár Z, Hornok S, Kontschán J, Mihalca AD. Wide Distribution and Diversity of Malaria-Related Haemosporidian Parasites ( Polychromophilus spp.) in Bats and Their Ectoparasites in Eastern Europe. Microorganisms 2021; 9:230. [PMID: 33499324 PMCID: PMC7911978 DOI: 10.3390/microorganisms9020230] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Revised: 01/14/2021] [Accepted: 01/20/2021] [Indexed: 01/17/2023] Open
Abstract
Malaria is responsible for major diseases of humans, while associated haemosporidians are important factors in regulating wildlife populations. Polychromophilus, a haemosporidian parasite of bats, is phylogenetically close to human-pathogenic Plasmodium species, and their study may provide further clues for understanding the evolutionary relationships between vertebrates and malarial parasites. Our aim was to investigate the distribution of Polychromophilus spp. in Eastern Europe and test the importance of host ecology and roost site on haemosporidian parasite infection of bats. We sampled bats and their ectoparasites at eight locations in Romania and Bulgaria. DNA was extracted from blood samples and ectoparasites and tested individually for the presence of DNA of Polychromophilus spp. using a nested PCR targeting a 705 bp fragment of cytB. Two species of Polychromophilus were identified: Po. melanipherus in Miniopterus schreibersii and associated ectoparasites and Po. murinus in rhinolophid and vespertilionid bats (6 species) and their ticks and nycteribiid flies. Only cave-dwelling bat species (and their ectoparasites) showed infections, and we found a strong correlation between infections with Polychromophilus parasites and Nycteribiidae prevalence. We report the high genetic diversity of Polychromophilus spp. in Eastern Europe, suggesting that the simultaneous presence of varied host and vector assemblages enhances bat haemosporidian parasite diversity.
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Affiliation(s)
- Attila D. Sándor
- Department of Parasitology and Parasitic Diseases, Faculty of Veterinary Medicine, University of Agricultural Sciences and Veterinary Medicine of Cluj-Napoca, RO-400036 Cluj Napoca, Romania; (Á.P.); (A.C.); (L.B.); (Z.K.); (A.D.M.)
- Department of Parasitology and Zoology, University of Veterinary Medicine, H-1078 Budapest, Hungary;
| | - Áron Péter
- Department of Parasitology and Parasitic Diseases, Faculty of Veterinary Medicine, University of Agricultural Sciences and Veterinary Medicine of Cluj-Napoca, RO-400036 Cluj Napoca, Romania; (Á.P.); (A.C.); (L.B.); (Z.K.); (A.D.M.)
| | - Alexandra Corduneanu
- Department of Parasitology and Parasitic Diseases, Faculty of Veterinary Medicine, University of Agricultural Sciences and Veterinary Medicine of Cluj-Napoca, RO-400036 Cluj Napoca, Romania; (Á.P.); (A.C.); (L.B.); (Z.K.); (A.D.M.)
| | - Levente Barti
- Department of Parasitology and Parasitic Diseases, Faculty of Veterinary Medicine, University of Agricultural Sciences and Veterinary Medicine of Cluj-Napoca, RO-400036 Cluj Napoca, Romania; (Á.P.); (A.C.); (L.B.); (Z.K.); (A.D.M.)
- Myotis Bat Conservation Group, RO-530171 Miercurea Ciuc, Romania;
| | - István Csősz
- Myotis Bat Conservation Group, RO-530171 Miercurea Ciuc, Romania;
| | - Zsuzsa Kalmár
- Department of Parasitology and Parasitic Diseases, Faculty of Veterinary Medicine, University of Agricultural Sciences and Veterinary Medicine of Cluj-Napoca, RO-400036 Cluj Napoca, Romania; (Á.P.); (A.C.); (L.B.); (Z.K.); (A.D.M.)
| | - Sándor Hornok
- Department of Parasitology and Zoology, University of Veterinary Medicine, H-1078 Budapest, Hungary;
| | - Jenő Kontschán
- Centre for Agricultural Research, Plant Protection Institute, ELKH, H-1022 Budapest, Hungary;
| | - Andrei D. Mihalca
- Department of Parasitology and Parasitic Diseases, Faculty of Veterinary Medicine, University of Agricultural Sciences and Veterinary Medicine of Cluj-Napoca, RO-400036 Cluj Napoca, Romania; (Á.P.); (A.C.); (L.B.); (Z.K.); (A.D.M.)
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Prathiviraj R, Chellapandi P. Deciphering Molecular Virulence Mechanism of Mycobacterium tuberculosis Dop isopeptidase Based on Its Sequence-Structure-Function Linkage. Protein J 2020; 39:33-45. [PMID: 31760575 DOI: 10.1007/s10930-019-09876-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
The pupylation pathway marks proteins for prokaryotic ubiquitin-like protein (Pup)-proteasomal degradation and survival strategy of mycobacteria inside of the host macrophages. Deamidase of Pup (Dop) plays a central role in the pupylation pathway. It is still a matter of investigation to know the function of Dop in virulence of mycobacterial lineage. Hence, the present study was intended to describe the sequence-structure-function-virulence link of Dop for understanding the molecular virulence mechanism of Mycobacterium tuberculosis H37Rv (Mtb). Phylogenetic analysis of this study indicated that Dop has extensively diverged across the proteasome-harboring bacteria. The functional part of Dop was converged across the pathogenic mycobacterial lineage. The genome-wide analysis pointed out that the pupylation gene locus was identical to each other, but its genome neighborhood differed from species to species. Molecular modeling and dynamic studies proved that the predicted structure of Mtb Dop was energetically stable and low conformational freedom. Moreover, evolutionary constraints in Mtb Dop were intensively analyzed for inferring its sequence-structure-function relationships for the full virulence of Mtb. It indicated that evolutionary optimization was extensively required to stabilize its local structural environment at the side chains of mutable residues. The sequence-structure-function-virulence link of Dop might have retained in Mtb by reordering hydrophobic and hydrogen bonding patterns in the local structural environment. Thus, the results of our study provide a quest to understand the molecular virulence and pathogenesis mechanisms of Mtb during the infection process.
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Affiliation(s)
- R Prathiviraj
- Molecular Systems Engineering Lab, Department of Bioinformatics, School of Life Sciences, Bharathidasan University, Tiruchirappalli, Tamil Nadu, 620024, India
| | - P Chellapandi
- Molecular Systems Engineering Lab, Department of Bioinformatics, School of Life Sciences, Bharathidasan University, Tiruchirappalli, Tamil Nadu, 620024, India.
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Evolutionary genetic analysis of unassigned peptidase clan-associated microbial virulence and pathogenesis. Biologia (Bratisl) 2020. [DOI: 10.2478/s11756-020-00529-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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