2021
Association of clade-G SARS-CoV-2 viruses and age with increased mortality rates across 57 countries and India
Pandit B, Bhattacharjee S, Bhattacharjee B. Association of clade-G SARS-CoV-2 viruses and age with increased mortality rates across 57 countries and India. Infection Genetics And Evolution 2021, 90: 104734. PMID: 33508515, PMCID: PMC7839510, DOI: 10.1016/j.meegid.2021.104734.Peer-Reviewed Original ResearchConceptsIndication of population expansionNegative Tajima's D valuesAllele frequency spectrumTajima's D valuesSARS-CoV-2 sequencesAmino acid changesClade of virusesNucleotide diversityEvolutionary analysisLinkage disequilibriumPopulation expansionContribution of host factorsViral haplotypesClade GAcid changesSARS-CoV-2 variantsViral populationsHost factorsMortality rateVariantsViral factorsNetwork analysisCoronary heart diseaseSARS-CoV-2 virusVirus
2013
Differential Expression of HPV16 L2 Gene in Cervical Cancers Harboring Episomal HPV16 Genomes: Influence of Synonymous and Non-Coding Region Variations
Mandal P, Bhattacharjee B, Ghosh D, Mondal N, Chowdhury R, Roy S, Sengupta S. Differential Expression of HPV16 L2 Gene in Cervical Cancers Harboring Episomal HPV16 Genomes: Influence of Synonymous and Non-Coding Region Variations. PLOS ONE 2013, 8: e65647. PMID: 23762404, PMCID: PMC3675152, DOI: 10.1371/journal.pone.0065647.Peer-Reviewed Original ResearchMeSH KeywordsAdultAgedCapsid ProteinsCarcinoma, Squamous CellFemaleGene DosageGene Expression Regulation, ViralGenome, ViralHost-Pathogen InteractionsHuman papillomavirus 16HumansMicroRNAsMiddle AgedOncogene Proteins, ViralOpen Reading FramesPapillomavirus InfectionsPlasmidsPolymorphism, GeneticPromoter Regions, GeneticRNA, MessengerSequence Analysis, DNAUterine Cervical NeoplasmsConceptsNon-coding regionsHPV16 genomeSynonymous variationNon-malignant samplesHuman codonsL2 genesWhole-genome sequence analysisShort non-coding regionHPV16 isolatesGenome sequence analysisMiRNA binding sitesWeak promoter activityHsa-mir-548Gene copy numberCaCx casesEpisomal HPV16 genomesSequence variationCoding regionSequence analysisGenomeNon-codingViral genomeEpisomal viral genomesCopy numberL2 ORF
2012
Genetic Analysis of Cytomegalovirus in Malignant Gliomas
Bhattacharjee B, Renzette N, Kowalik T. Genetic Analysis of Cytomegalovirus in Malignant Gliomas. Journal Of Virology 2012, 86: 6815-6824. PMID: 22496213, PMCID: PMC3393585, DOI: 10.1128/jvi.00015-12.Peer-Reviewed Original ResearchConceptsDNA copy numberViral DNA copy numberPresence of intact open reading framesCopy numberLong regionMalignant gliomasHigh amino acid sequence conservationAmino acid sequence conservationIntact open reading framesViral populationsHuman cytomegalovirusOpen reading frameAmino acid changesSingle gene productsGenome coverageGlioblastoma multiformeSequence conservationReading framePhylogenetic analysisHCMV prevalenceCore genesSequence analysisShort regionLow-grade tumorsGenetic analysis
2010
Association of viral load with HPV16 positive cervical cancer pathogenesis: Causal relevance in isolates harboring intact viral E2 gene
Das D, Bhattacharjee B, Sen S, Mukhopadhyay I, Sengupta S. Association of viral load with HPV16 positive cervical cancer pathogenesis: Causal relevance in isolates harboring intact viral E2 gene. Virology 2010, 402: 197-202. PMID: 20394955, DOI: 10.1016/j.virol.2010.03.030.Peer-Reviewed Original ResearchConceptsViral loadE2 statusAssociation of viral loadMedian viral loadViral loads compared to controlsAge of subjectsCervical cancer pathogenesisViral E2 geneCompared to controlsCervical cancerLogistic regression modelsCancer pathogenesisTaqMan assayLower ageCaCxHPV16E2 genePathogenesisAgeIntact E2Regression modelsStatusGenomic DNAAssociationCancer
2008
Characterization of sequence variations within HPV16 isolates among Indian women: Prediction of causal role of rare non-synonymous variations within intact isolates in cervical cancer pathogenesis
Bhattacharjee B, Mandal N, Roy S, Sengupta S. Characterization of sequence variations within HPV16 isolates among Indian women: Prediction of causal role of rare non-synonymous variations within intact isolates in cervical cancer pathogenesis. Virology 2008, 377: 143-150. PMID: 18495198, DOI: 10.1016/j.virol.2008.04.007.Peer-Reviewed Original ResearchConceptsNon-synonymous changesCharacterization of sequence variationsPolymorphic variationDeleterious to protein functionHPV16 isolatesNon-synonymous variationsRare non-synonymous variationsDeleterious variationHaplotype backgroundNucleotide variationsSIFTS databaseDeleterious mutationsSequence variationSequence variantsProtein functionHPV16 genomeHaplotype analysisHaplotypesFunctional validationCervical cancer pathogenesisE-12IsolatesCaCx developmentCancer pathogenesisProductive infection
2006
CpG methylation of HPV 16 LCR at E2 binding site proximal to P97 is associated with cervical cancer in presence of intact E2
Bhattacharjee B, Sengupta S. CpG methylation of HPV 16 LCR at E2 binding site proximal to P97 is associated with cervical cancer in presence of intact E2. Virology 2006, 354: 280-285. PMID: 16905170, DOI: 10.1016/j.virol.2006.06.018.Peer-Reviewed Original ResearchConceptsLong control regionE2 binding sitesP97 promoterCervical cancerNormal controlsAssociated with cervical cancerCytologically normal controlsIntact E2 geneHuman papillomavirus type 16Binding sitesMspI restriction digestionRegulate transcriptionRepressor activityHPV-16CaCx samplesCpG methylationControl regionIntact E2Restriction digestionE7 genesType 16E2 geneCaCxMalignant samplesSite methylation
2005
HPV16 E2 gene disruption and polymorphisms of E2 and LCR: Some significant associations with cervical cancer in Indian women
Bhattacharjee B, Sengupta S. HPV16 E2 gene disruption and polymorphisms of E2 and LCR: Some significant associations with cervical cancer in Indian women. Gynecologic Oncology 2005, 100: 372-378. PMID: 16246404, DOI: 10.1016/j.ygyno.2005.09.016.Peer-Reviewed Original ResearchConceptsE2 disruptionE2 geneE2 gene disruptionIntact E2 geneIndian womenBi-directional sequencingAsian-American variantsNucleotide sequence alterationsDNA-binding regionHPV16 E2 geneCaCx developmentHPV16 isolatesCompared to controlsChi-square testCaCx casesFisher's exactCervical cancerViral factorsHPV16Nucleotide variationsE subgroupGene disruptionSequence alterationsPCR amplificationNucleotide