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  1. Article: Interplay between gene expression and gene architecture as a consequence of gene and genome duplications: evidence from metabolic genes of Arabidopsis thaliana

    Mukherjee, Dola / Saha, Deeya / Acharya, Debarun / Mukherjee, Ashutosh / Ghosh, Tapash Chandra

    Physiology and molecular biology of plants. 2022 May, v. 28, no. 5

    2022  

    Abstract: Gene and genome duplications have been widespread during the evolution of flowering plant which resulted in the increment of biological complexity as well as creation of plasticity of a genome helping the species to adapt to changing environments. ... ...

    Abstract Gene and genome duplications have been widespread during the evolution of flowering plant which resulted in the increment of biological complexity as well as creation of plasticity of a genome helping the species to adapt to changing environments. Duplicated genes with higher evolutionary rates can act as a mechanism of generating novel functions in secondary metabolism. In this study, we explored duplication as a potential factor governing the expression heterogeneity and gene architecture of Primary Metabolic Genes (PMGs) and Secondary Metabolic Genes (SMGs) of Arabidopsis thaliana. It is remarkable that different types of duplication processes controlled gene expression and tissue specificity differently in PMGs and SMGs. A complex relationship exists between gene architecture and expression patterns of primary and secondary metabolic genes. Our study reflects, expression heterogeneity and gene structure variation of primary and secondary metabolism in Arabidopsis thaliana are partly results of duplication events of different origins. Our study suggests that duplication has differential effect on PMGs and SMGs regarding expression pattern by controlling gene structure, epigenetic modifications, multifunctionality and subcellular compartmentalization. This study provides an insight into the evolution of metabolism in plants in the light of gene and genome scale duplication.
    Keywords Arabidopsis thaliana ; epigenetics ; evolution ; gene expression ; genes ; metabolism ; molecular biology ; plasticity
    Language English
    Dates of publication 2022-05
    Size p. 1091-1108.
    Publishing place Springer India
    Document type Article
    ZDB-ID 2487126-6
    ISSN 0974-0430 ; 0971-5894
    ISSN (online) 0974-0430
    ISSN 0971-5894
    DOI 10.1007/s12298-022-01188-2
    Database NAL-Catalogue (AGRICOLA)

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  2. Article: Interplay between gene expression and gene architecture as a consequence of gene and genome duplications: evidence from metabolic genes of

    Mukherjee, Dola / Saha, Deeya / Acharya, Debarun / Mukherjee, Ashutosh / Ghosh, Tapash Chandra

    Physiology and molecular biology of plants : an international journal of functional plant biology

    2022  Volume 28, Issue 5, Page(s) 1091–1108

    Abstract: Gene and genome duplications have been widespread during the evolution of flowering plant which resulted in the increment of biological complexity as well as creation of plasticity of a genome helping the species to adapt to changing environments. ... ...

    Abstract Gene and genome duplications have been widespread during the evolution of flowering plant which resulted in the increment of biological complexity as well as creation of plasticity of a genome helping the species to adapt to changing environments. Duplicated genes with higher evolutionary rates can act as a mechanism of generating novel functions in secondary metabolism. In this study, we explored duplication as a potential factor governing the expression heterogeneity and gene architecture of Primary Metabolic Genes (PMGs) and Secondary Metabolic Genes (SMGs) of
    Supplementary information: The online version contains supplementary material available at 10.1007/s12298-022-01188-2.
    Language English
    Publishing date 2022-06-02
    Publishing country India
    Document type Journal Article
    ZDB-ID 2487126-6
    ISSN 0974-0430 ; 0971-5894
    ISSN (online) 0974-0430
    ISSN 0971-5894
    DOI 10.1007/s12298-022-01188-2
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Chaperone client proteins evolve slower than non-client proteins.

    Victor, Manish Prakash / Acharya, Debarun / Chakraborty, Sandip / Ghosh, Tapash Chandra

    Functional & integrative genomics

    2020  Volume 20, Issue 5, Page(s) 621–631

    Abstract: Chaperones are important molecular machinery that assists proteins to attain their native three-dimensional structure crucial for function. Earlier studies using experimental evolution showed that chaperones impose a relaxation of sequence constraints on ...

    Abstract Chaperones are important molecular machinery that assists proteins to attain their native three-dimensional structure crucial for function. Earlier studies using experimental evolution showed that chaperones impose a relaxation of sequence constraints on their "client" proteins, which may lead to the fixation of slightly deleterious mutations on the latter. However, we hypothesized that such a phenomenon might be harmful to the organism in a natural physiological condition. In this study, we investigated the evolutionary rates of chaperone client and non-client proteins in five model organisms from both prokaryotic and eukaryotic lineages. Our study reveals a slower evolutionary rate of chaperone client proteins in all five organisms. Additionally, the slower folding rate and lower aggregation propensity of chaperone client proteins reveal that the chaperone may play an essential role in rescuing the slightly disadvantageous effects due to random mutations and subsequent protein misfolding. However, the fixation of such mutations is less likely to be selected in the natural population.
    MeSH term(s) Animals ; Bacterial Proteins/genetics ; Drosophila Proteins/genetics ; Drosophila Proteins/metabolism ; Drosophila melanogaster/genetics ; Escherichia coli Proteins/chemistry ; Escherichia coli Proteins/genetics ; Escherichia coli Proteins/metabolism ; Evolution, Molecular ; Humans ; Molecular Chaperones ; Mutation ; Protein Aggregates ; Protein Folding ; Protein Interaction Mapping ; Proteins/genetics ; Saccharomyces cerevisiae Proteins/chemistry ; Saccharomyces cerevisiae Proteins/genetics ; Saccharomyces cerevisiae Proteins/metabolism ; Thermus/genetics
    Chemical Substances Bacterial Proteins ; Drosophila Proteins ; Escherichia coli Proteins ; Molecular Chaperones ; Protein Aggregates ; Proteins ; Saccharomyces cerevisiae Proteins
    Language English
    Publishing date 2020-05-06
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 2014670-X
    ISSN 1438-7948 ; 1438-793X
    ISSN (online) 1438-7948
    ISSN 1438-793X
    DOI 10.1007/s10142-020-00740-1
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: An in-silico study on SARS-CoV-2: Its compatibility with human tRNA pool, and the polymorphism arising in a single lineage over a month

    Victor, Manish Prakash / Das, Rohit / Ghosh, Tapash Chandra

    bioRxiv

    Abstract: SARS-CoV-2 has caused a global pandemic that has costed enormous human lives in the recent past. The present study is an investigation of the viral codon adaptation, ORFs’ stability and tRNA co-adaptation with humans. We observed that for the codon usage ...

    Abstract SARS-CoV-2 has caused a global pandemic that has costed enormous human lives in the recent past. The present study is an investigation of the viral codon adaptation, ORFs’ stability and tRNA co-adaptation with humans. We observed that for the codon usage bias in viral ssRNA, ORFs have near values of folding free energies and codon adaptation index with mRNAs of the human housekeeping CDS. However, the correlation between the stability of the ORFs in ssRNA and CAI is stronger than the mRNA stability and CAI of HKG, suggesting a greater expression capacity of SARS-CoV-2. Mutational analysis reflects polymorphism in the virus for ORF1ab, surface glycoprotein and nucleocapsid phosphoprotein ORFs. Non-synonymous mutations have shown non-polar substitutions. Out of the twelve mutations nine are for a higher t-RNA copy number. Viruses in general have high mutation rates. To understand the chances of survival for the mutated SARS-CoV-2 we did simulation for synonymous mutations. It resulted in 50% ORFs with higher stability than their native equivalents. Thus, considering only the synonymous mutations the virus can exhibit a lot of polymorphism. Collectively our data provides new insights for SARS-CoV-2 mutations and the human t-RNA compatibility. Significance Survivability of SARS-CoV-2 in humans is essential for its spread. It has overlapping genes exhibiting a high codon optimization with humans even after a higher codon usage bias. They seem to possess cognizance for high copy number t-RNA (cognate or near-cognate) in humans, while mutating. Even though, it has been well established that native transcripts posses the highest stability, our in-silico studies show that SARS-CoV-2 under mutations give rise to ORFs with higher stability. These results significantly present the virus’s ability and the credibility of survival for the mutants. Despite its focus on a geographical location it explains the ongoing behavior of SARS-CoV-2 for a steady existence in humans as all the different lineages have a common origin. Wuhan, China.
    Keywords covid19
    Publisher BioRxiv; WHO
    Document type Article ; Online
    DOI 10.1101/2020.07.23.217083
    Database COVID19

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  5. Article: Chaperone client proteins evolve slower than non-client proteins

    Victor, Manish Prakash / Acharya, Debarun / Chakraborty, Sandip / Ghosh, Tapash Chandra

    Functional & integrative genomics. 2020 Sept., v. 20, no. 5

    2020  

    Abstract: Chaperones are important molecular machinery that assists proteins to attain their native three-dimensional structure crucial for function. Earlier studies using experimental evolution showed that chaperones impose a relaxation of sequence constraints on ...

    Abstract Chaperones are important molecular machinery that assists proteins to attain their native three-dimensional structure crucial for function. Earlier studies using experimental evolution showed that chaperones impose a relaxation of sequence constraints on their “client” proteins, which may lead to the fixation of slightly deleterious mutations on the latter. However, we hypothesized that such a phenomenon might be harmful to the organism in a natural physiological condition. In this study, we investigated the evolutionary rates of chaperone client and non-client proteins in five model organisms from both prokaryotic and eukaryotic lineages. Our study reveals a slower evolutionary rate of chaperone client proteins in all five organisms. Additionally, the slower folding rate and lower aggregation propensity of chaperone client proteins reveal that the chaperone may play an essential role in rescuing the slightly disadvantageous effects due to random mutations and subsequent protein misfolding. However, the fixation of such mutations is less likely to be selected in the natural population.
    Keywords directed evolution ; models ; mutation ; protein folding ; proteins
    Language English
    Dates of publication 2020-09
    Size p. 621-631.
    Publishing place Springer Berlin Heidelberg
    Document type Article
    ZDB-ID 2014670-X
    ISSN 1438-7948 ; 1438-793X
    ISSN (online) 1438-7948
    ISSN 1438-793X
    DOI 10.1007/s10142-020-00740-1
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  6. Article ; Online: Elucidating the genotype-phenotype relationships and network perturbations of human shared and specific disease genes from an evolutionary perspective.

    Begum, Tina / Ghosh, Tapash Chandra

    Genome biology and evolution

    2014  Volume 6, Issue 10, Page(s) 2741–2753

    Abstract: To date, numerous studies have been attempted to determine the extent of variation in evolutionary rates between human disease and nondisease (ND) genes. In our present study, we have considered human autosomal monogenic (Mendelian) disease genes, which ... ...

    Abstract To date, numerous studies have been attempted to determine the extent of variation in evolutionary rates between human disease and nondisease (ND) genes. In our present study, we have considered human autosomal monogenic (Mendelian) disease genes, which were classified into two groups according to the number of phenotypic defects, that is, specific disease (SPD) gene (one gene: one defect) and shared disease (SHD) gene (one gene: multiple defects). Here, we have compared the evolutionary rates of these two groups of genes, that is, SPD genes and SHD genes with respect to ND genes. We observed that the average evolutionary rates are slow in SHD group, intermediate in SPD group, and fast in ND group. Group-to-group evolutionary rate differences remain statistically significant regardless of their gene expression levels and number of defects. We demonstrated that disease genes are under strong selective constraint if they emerge through edgetic perturbation or drug-induced perturbation of the interactome network, show tissue-restricted expression, and are involved in transmembrane transport. Among all the factors, our regression analyses interestingly suggest the independent effects of 1) drug-induced perturbation and 2) the interaction term of expression breadth and transmembrane transport on protein evolutionary rates. We reasoned that the drug-induced network disruption is a combination of several edgetic perturbations and, thus, has more severe effect on gene phenotypes.
    MeSH term(s) Disease/genetics ; Genetic Association Studies/methods ; Genotype ; Humans ; Models, Genetic ; Phenotype
    Language English
    Publishing date 2014-10-05
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2495328-3
    ISSN 1759-6653 ; 1759-6653
    ISSN (online) 1759-6653
    ISSN 1759-6653
    DOI 10.1093/gbe/evu220
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Prevalent structural disorder carries signature of prokaryotic adaptation to oxic atmosphere.

    Panda, Arup / Ghosh, Tapash Chandra

    Gene

    2014  Volume 548, Issue 1, Page(s) 134–141

    Abstract: Microbes have adopted efficient mechanisms to contend with environmental changes. The emergence of oxygen was a major event that led to an abrupt change in Earth's atmosphere. To adjust with this shift in environmental condition ancient microbes must ... ...

    Abstract Microbes have adopted efficient mechanisms to contend with environmental changes. The emergence of oxygen was a major event that led to an abrupt change in Earth's atmosphere. To adjust with this shift in environmental condition ancient microbes must have undergone several modifications. Although some proteomic and genomic attributes were proposed to facilitate survival of microorganisms in the presence of oxygen, the process of adaptation still remains elusive. Recent studies have focused that intrinsically disordered proteins play crucial roles in adaptation to a wide range of ecological conditions. Therefore, it is likely that disordered proteins could also play indispensable roles in microbial adaptation to the aerobic environment. To test this hypothesis we measured the disorder content of 679 prokaryotes from four oxygen requirement groups. Our result revealed that aerobic proteomes are endowed with the highest protein disorder followed by facultative microbes. Minimal disorder was observed in anaerobic and microaerophilic microbes with no significant difference in their disorder content. Considering all the potential confounding factors that can modulate protein disorder, here we established that the high protein disorder in aerobic microbe is not a by-product of adaptation to any other selective pressure. On the functional level, we found that the high disorder in aerobic proteomes has been utilized for processes that are important for their aerobic lifestyle. Moreover, aerobic proteomes were found to be enriched with disordered binding sites and to contain transcription factors with high disorder propensity. Based on our results, here we proposed that the high protein disorder is an adaptive opportunity for aerobic microbes to fit with the genomic and functional complexities of the aerobic lifestyle.
    MeSH term(s) Adaptation, Physiological ; Aerobiosis ; Anaerobiosis ; Atmosphere ; Binding Sites ; Genome ; Oxygen/metabolism ; Prokaryotic Cells/metabolism ; Prokaryotic Cells/physiology ; Proteins/chemistry ; Proteins/metabolism ; Proteome ; Temperature ; Transcription Factors/genetics ; Transcription Factors/metabolism
    Chemical Substances Proteins ; Proteome ; Transcription Factors ; Oxygen (S88TT14065)
    Language English
    Publishing date 2014-09-10
    Publishing country Netherlands
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 391792-7
    ISSN 1879-0038 ; 0378-1119
    ISSN (online) 1879-0038
    ISSN 0378-1119
    DOI 10.1016/j.gene.2014.07.002
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  8. Article ; Online: Systematic Analyses and Prediction of Human Drug Side Effect Associated Proteins from the Perspective of Protein Evolution.

    Begum, Tina / Ghosh, Tapash Chandra / Basak, Surajit

    Genome biology and evolution

    2017  Volume 9, Issue 2, Page(s) 337–350

    Abstract: Identification of various factors involved in adverse drug reactions in target proteins to develop therapeutic drugs with minimal/no side effect is very important. In this context, we have performed a comparative evolutionary rate analyses between the ... ...

    Abstract Identification of various factors involved in adverse drug reactions in target proteins to develop therapeutic drugs with minimal/no side effect is very important. In this context, we have performed a comparative evolutionary rate analyses between the genes exhibiting drug side-effect(s) (SET) and genes showing no side effect (NSET) with an aim to increase the prediction accuracy of SET/NSET proteins using evolutionary rate determinants. We found that SET proteins are more conserved than the NSET proteins. The rates of evolution between SET and NSET protein primarily depend upon their noncomplex (protein complex association number = 0) forming nature, phylogenetic age, multifunctionality, membrane localization, and transmembrane helix content irrespective of their essentiality, total druggability (total number of drugs/target), m-RNA expression level, and tissue expression breadth. We also introduced two novel terms-killer druggability (number of drugs with killing side effect(s)/target), essential druggability (number of drugs targeting essential proteins/target) to explain the evolutionary rate variation between SET and NSET proteins. Interestingly, we noticed that SET proteins are younger than NSET proteins and multifunctional younger SET proteins are candidates of acquiring killing side effects. We provide evidence that higher killer druggability, multifunctionality, and transmembrane helices support the conservation of SET proteins over NSET proteins in spite of their recent origin. By employing all these entities, our Support Vector Machine model predicts human SET/NSET proteins to a high degree of accuracy (∼86%).
    MeSH term(s) Conserved Sequence ; Drug-Related Side Effects and Adverse Reactions/genetics ; Evolution, Molecular ; Genome, Human ; Humans ; Pharmacogenomic Testing/methods ; Proteome/drug effects ; Proteome/genetics ; Support Vector Machine
    Chemical Substances Proteome
    Language English
    Publishing date 2017-04-02
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ISSN 1759-6653
    ISSN (online) 1759-6653
    DOI 10.1093/gbe/evw301
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  9. Article ; Online: Evolutionary rate heterogeneity of core and attachment proteins in yeast protein complexes.

    Chakraborty, Sandip / Ghosh, Tapash Chandra

    Genome biology and evolution

    2013  Volume 5, Issue 7, Page(s) 1366–1375

    Abstract: In general, proteins do not work alone; they form macromolecular complexes to play fundamental roles in diverse cellular functions. On the basis of their iterative clustering procedure and frequency of occurrence in the macromolecular complexes, the ... ...

    Abstract In general, proteins do not work alone; they form macromolecular complexes to play fundamental roles in diverse cellular functions. On the basis of their iterative clustering procedure and frequency of occurrence in the macromolecular complexes, the protein subunits have been categorized as core and attachment. Core protein subunits are the main functional elements, whereas attachment proteins act as modifiers or activators in protein complexes. In this article, using the current data set of yeast protein complexes, we found that core proteins are evolving at a faster rate than attachment proteins in spite of their functional importance. Interestingly, our investigation revealed that attachment proteins are present in a higher number of macromolecular complexes than core proteins. We also observed that the protein complex number (defined as the number of protein complexes in which a protein subunit belongs) has a stronger influence on gene/protein essentiality than multifunctionality. Finally, our results suggest that the observed differences in the rates of protein evolution between core and attachment proteins are due to differences in protein complex number and expression level. Moreover, we conclude that proteins which are present in higher numbers of macromolecular complexes enhance their overall expression level by increasing their transcription rate as well as translation rate, and thus the protein complex number imposes a strong selection pressure on the evolution of yeast proteome.
    MeSH term(s) Databases, Protein ; Evolution, Molecular ; Fungal Proteins/genetics ; Fungal Proteins/metabolism ; Gene Expression Regulation, Fungal ; Genes, Essential ; Genes, Fungal ; Multiprotein Complexes/genetics ; Multiprotein Complexes/metabolism ; Protein Interaction Mapping ; Regression Analysis ; Saccharomyces/genetics ; Saccharomyces/metabolism ; Saccharomyces cerevisiae/genetics ; Saccharomyces cerevisiae/metabolism ; Saccharomyces cerevisiae Proteins/genetics ; Saccharomyces cerevisiae Proteins/metabolism
    Chemical Substances Fungal Proteins ; Multiprotein Complexes ; Saccharomyces cerevisiae Proteins
    Language English
    Publishing date 2013-06-26
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2495328-3
    ISSN 1759-6653 ; 1759-6653
    ISSN (online) 1759-6653
    ISSN 1759-6653
    DOI 10.1093/gbe/evt096
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: Disorderness in Escherichia coli proteome: perception of folding fidelity and protein-protein interactions.

    Kahali, Bratati / Ghosh, Tapash Chandra

    Journal of biomolecular structure & dynamics

    2013  Volume 31, Issue 5, Page(s) 472–476

    Abstract: Traditionally biased usage of synonymous codons renders selective advantage to proteins expressed at high levels with a few exceptions like in Escherichia coli. Proteome-wide characteristics indicative of trends in highly expressed proteins of E. coli is ...

    Abstract Traditionally biased usage of synonymous codons renders selective advantage to proteins expressed at high levels with a few exceptions like in Escherichia coli. Proteome-wide characteristics indicative of trends in highly expressed proteins of E. coli is analyzed in this communication. Implications for the nature of interactions performed by these two groups of highly expressed proteins are discussed here. The group of highly expressed proteins having optimized codon usage through employment of most abundant tRNAs is already shielded from misfolding by their improved error-prone translational machinery. Our data also provide evidence for mechanism by which a significant proportion of highly expressed proteins with high intrinsic disorder evade degradation and successfully carry out their function.
    MeSH term(s) Codon ; Escherichia coli/metabolism ; Escherichia coli Proteins/genetics ; Escherichia coli Proteins/metabolism ; Gene Expression ; Models, Biological ; Protein Folding ; Protein Interaction Maps ; Proteome/genetics ; Proteome/metabolism ; Statistics, Nonparametric
    Chemical Substances Codon ; Escherichia coli Proteins ; Proteome
    Language English
    Publishing date 2013
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 49157-3
    ISSN 1538-0254 ; 0739-1102
    ISSN (online) 1538-0254
    ISSN 0739-1102
    DOI 10.1080/07391102.2012.706071
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