2004
Essential Role for OspA/B in the Life Cycle of the Lyme Disease Spirochete
Yang XF, Pal U, Alani SM, Fikrig E, Norgard MV. Essential Role for OspA/B in the Life Cycle of the Lyme Disease Spirochete. Journal Of Experimental Medicine 2004, 199: 641-648. PMID: 14981112, PMCID: PMC2213294, DOI: 10.1084/jem.20031960.Peer-Reviewed Original Research
2002
Differential Expression of the p44 Gene Family in the Agent of Human Granulocytic Ehrlichiosis
IJdo JW, Wu C, Telford SR, Fikrig E. Differential Expression of the p44 Gene Family in the Agent of Human Granulocytic Ehrlichiosis. Infection And Immunity 2002, 70: 5295-5298. PMID: 12183586, PMCID: PMC128253, DOI: 10.1128/iai.70.9.5295-5298.2002.Peer-Reviewed Original ResearchConceptsP44 geneDifferential expressionHuman granulocytic ehrlichiosisGene familyAntigenic variationHGE bacteriaTransmission feedingGranulocytic ehrlichiosisGenesHypervariable regionInfected C3H miceP44 expressionTick transmissionExpressionSCID miceC3H miceHGE infectionMurine modelInfected ticksSalivary glandsNymphal ticksMiceTicksEhrlichiosisBacteriaMolecular Adaptation of Borrelia burgdorferi in the Murine Host
Liang FT, Nelson FK, Fikrig E. Molecular Adaptation of Borrelia burgdorferi in the Murine Host. Journal Of Experimental Medicine 2002, 196: 275-280. PMID: 12119353, PMCID: PMC2193918, DOI: 10.1084/jem.20020770.Peer-Reviewed Original ResearchConceptsLipoprotein geneMolecular adaptationsHost immune selection pressureAnalysis of expressionNovel adaptation mechanismSteps of adaptationSelection pressureLyme disease spirocheteB. burgdorferiMurine hostGenesHost tissuesImmune selection pressureAdaptation mechanismsChronic infectionMurine infectionCritical stepHostBorrelia burgdorferiInfectionAdaptationSpirochetesBurgdorferiInitial inoculumPathogensDNA Microarray Assessment of Putative Borrelia burgdorferi Lipoprotein Genes
Liang FT, Nelson FK, Fikrig E. DNA Microarray Assessment of Putative Borrelia burgdorferi Lipoprotein Genes. Infection And Immunity 2002, 70: 3300-3303. PMID: 12011030, PMCID: PMC128019, DOI: 10.1128/iai.70.6.3300-3303.2002.Peer-Reviewed Original Research
1998
Differential Expression of Borrelia burgdorferi Genes during Erythema Migrans and Lyme Arthritis
Fikrig E, Feng W, Aversa J, Schoen R, Flavell R. Differential Expression of Borrelia burgdorferi Genes during Erythema Migrans and Lyme Arthritis. The Journal Of Infectious Diseases 1998, 178: 1198-1201. PMID: 9806060, DOI: 10.1086/515684.Peer-Reviewed Original ResearchConceptsLyme arthritisLyme diseaseHuman infectionsPhase III clinical trialsMurine Lyme borreliosisRNA polymerase chain reactionErythema migrans biopsiesErythema migransProtective immunityClinical trialsVaccine candidatesTissue specimensLyme borreliosisPatientsGene expressionBorrelia burgdorferiDiseaseFirst direct demonstrationB. burgdorferiChain reactionArthritisInfectionBorrelia burgdorferi genesOspAB. burgdorferi gene expression
1996
Characterization of two genes, p11 and p5, on the Borrelia burgdorferi 49-kilo base linear plasmid
Feng S, Das S, Barthold S, Fikrig E. Characterization of two genes, p11 and p5, on the Borrelia burgdorferi 49-kilo base linear plasmid. Biochimica Et Biophysica Acta 1996, 1307: 270-272. PMID: 8688460, DOI: 10.1016/0167-4781(96)00076-0.Peer-Reviewed Original Research
1995
A 55-kilodalton antigen encoded by a gene on a Borrelia burgdorferi 49-kilobase plasmid is recognized by antibodies in sera from patients with Lyme disease
Feng S, Das S, Lam T, Flavell RA, Fikrig E. A 55-kilodalton antigen encoded by a gene on a Borrelia burgdorferi 49-kilobase plasmid is recognized by antibodies in sera from patients with Lyme disease. Infection And Immunity 1995, 63: 3459-3466. PMID: 7642278, PMCID: PMC173477, DOI: 10.1128/iai.63.9.3459-3466.1995.Peer-Reviewed Original ResearchConceptsLate-stage Lyme diseaseEarly stage Lyme diseaseLyme diseaseIgM antibodiesSubset of patientsBorrelia burgdorferiLyme disease patientsEnzyme-linked immunosorbent assayRecombinant S1Disease patientsIgG antibodiesPulsed-field gel electrophoresisS1 antigenPatientsAntigenDiseaseSerum samplesImmunosorbent assaySerumAntibodiesB. burgdorferiRabbit antiBurgdorferiCultured spirochetesArthritisThe hook protein of Borrelia burgdorferi, encoded by the flgE gene, is serologically recognized in Lyme disease.
Jwang B, Dewing P, Fikrig E, Flavell RA. The hook protein of Borrelia burgdorferi, encoded by the flgE gene, is serologically recognized in Lyme disease. MSphere 1995, 2: 609-15. PMID: 8548542, PMCID: PMC170207, DOI: 10.1128/cdli.2.5.609-615.1995.Peer-Reviewed Original ResearchConceptsFlgE proteinFlgE geneEscherichia coli expression plasmidPrimary protein sequenceB. burgdorferi N40Hook geneWhole cell lysatesHook proteinLinear chromosomesPeriplasmic flagellaProtein sequencesFlgERecombinant proteinsB. burgdorferiBasal bodiesFlagellar filamentsWestern blot analysisBorrelia burgdorferiGenesExpression plasmidProteinBlot analysisNegative bacteriaMurine antiseraLyme diseaseBorrelia burgdorferi genes selectively expressed in the infected host.
Suk K, Das S, Sun W, Jwang B, Barthold SW, Flavell RA, Fikrig E. Borrelia burgdorferi genes selectively expressed in the infected host. Proceedings Of The National Academy Of Sciences Of The United States Of America 1995, 92: 4269-4273. PMID: 7753795, PMCID: PMC41925, DOI: 10.1073/pnas.92.10.4269.Peer-Reviewed Original ResearchMeSH KeywordsAmino Acid SequenceAnimalsAntibodies, BacterialAntigen-Antibody ReactionsAntigens, BacterialBacterial VaccinesBase SequenceBlotting, NorthernBorrelia burgdorferi GroupDNA PrimersDNA, BacterialGene ExpressionGene Transfer TechniquesGenes, BacterialGenomic LibraryImmunizationMiceMice, Inbred C3HMolecular Sequence DataPolymerase Chain ReactionSequence Homology, Amino AcidConceptsInfected hostRNA PCRDifferential screeningScreening strategyExpression libraryB. burgdorferiSelective expressionNorthern blot analysisBlot analysisMiceBorrelia burgdorferi genesB. burgdorferi genesVivoGene transfer systemMicrobial genesScreening methodPathogenic microorganismsScreeningGenesAntigenSelection of variant Borrelia burgdorferi isolates from mice immunized with outer surface protein A or B
Fikrig E, Tao H, Barthold SW, Flavell RA. Selection of variant Borrelia burgdorferi isolates from mice immunized with outer surface protein A or B. Infection And Immunity 1995, 63: 1658-1662. PMID: 7729870, PMCID: PMC173206, DOI: 10.1128/iai.63.5.1658-1662.1995.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsAntigens, BacterialAntigens, SurfaceBacterial Outer Membrane ProteinsBacterial VaccinesBorrelia burgdorferi GroupCloning, MolecularFemaleGenes, BacterialGenetic VariationImmunoblottingLipoproteinsLyme DiseaseMiceMice, Inbred C3HRecombinant ProteinsSelection, GeneticSequence Analysis, DNAVaccinationConceptsSurface protein AOuter surface protein AProtective immunityProtective antibodiesIncomplete efficacyMiceMonoclonal antibodiesProtein ABorrelia burgdorferiB. burgdorferiAntigenic diversityOspBOspAVivo selective pressureImmunityAntibodiesB. burgdorferi isolatesBurgdorferiChallenge inoculationPoint mutationsMolecular basisVaccineInfection
1994
A chromosomal Borrelia burgdorferi gene encodes a 22-kilodalton lipoprotein, P22, that is serologically recognized in Lyme disease
Lam TT, Nguyen TP, Fikrig E, Flavell RA. A chromosomal Borrelia burgdorferi gene encodes a 22-kilodalton lipoprotein, P22, that is serologically recognized in Lyme disease. Journal Of Clinical Microbiology 1994, 32: 876-883. PMID: 8027338, PMCID: PMC263156, DOI: 10.1128/jcm.32.4.876-883.1994.Peer-Reviewed Original ResearchConceptsLate-stage diseaseLyme diseaseOuter surface proteinsEarly-stage diseaseExamination of seraErythema migransSurface proteinsPulsed-field gel electrophoresisPatientsEtiologic agentDiseaseBorrelia burgdorferiB. burgdorferiAntibodiesLipoproteinBorrelia burgdorferi genesSerumBurgdorferiShort amino terminusOuter surface proteins E and F of Borrelia burgdorferi, the agent of Lyme disease
Lam TT, Nguyen TP, Montgomery RR, Kantor FS, Fikrig E, Flavell RA. Outer surface proteins E and F of Borrelia burgdorferi, the agent of Lyme disease. Infection And Immunity 1994, 62: 290-298. PMID: 8262642, PMCID: PMC186099, DOI: 10.1128/iai.62.1.290-298.1994.Peer-Reviewed Original ResearchMeSH KeywordsAmino Acid SequenceAntigens, BacterialBacterial Outer Membrane ProteinsBacterial ProteinsBase SequenceBlotting, WesternBorrelia burgdorferi GroupCloning, MolecularCodonFluorescent Antibody TechniqueGenes, BacterialHumansLipoproteinsLyme DiseaseMolecular Sequence DataMolecular WeightOperonRegulatory Sequences, Nucleic AcidRestriction MappingSequence AlignmentSequence Homology, Nucleic AcidSolubilityConceptsOspE genesMolecular massSignal peptidase IIConsensus cleavage sequenceTranscriptional unitsLeader sequenceCommon promoterBp downstreamOuter surface proteinsProtein EStop codonSurface lipoproteinsLabeling showBorrelia burgdorferiGenesHydrophobic domainCleavage sequenceSurface proteinsAmino acidsPeptidase IIProteinOuter surface protein EGel electrophoresisNucleotidesImmunofluorescence studies
1993
Evasion of protective immunity by Borrelia burgdorferi by truncation of outer surface protein B.
Fikrig E, Tao H, Kantor FS, Barthold SW, Flavell RA. Evasion of protective immunity by Borrelia burgdorferi by truncation of outer surface protein B. Proceedings Of The National Academy Of Sciences Of The United States Of America 1993, 90: 4092-4096. PMID: 7683420, PMCID: PMC46452, DOI: 10.1073/pnas.90.9.4092.Peer-Reviewed Original ResearchMeSH KeywordsAmino Acid SequenceAnimalsAntibodiesAntibodies, MonoclonalAntigens, BacterialAntigens, SurfaceBacterial Outer Membrane ProteinsBase SequenceBorrelia burgdorferi GroupCloning, MolecularCodonEpitopesEscherichia coliFemaleFluorescent Antibody TechniqueGenes, BacterialHumansLyme DiseaseMiceMice, Inbred C3HPolymerase Chain ReactionRecombinant Fusion ProteinsRecombinant ProteinsRestriction MappingTicksVaccines, SyntheticViral VaccinesConceptsProtective immune responseVaccination immunityProtective immunityProtective antibodiesAntibody responseImmune destructionImmune responseHost defenseOuter surface proteinsLyme diseaseOuter surface protein BBorrelia burgdorferiCausative agentOspBMicePolyclonal antibodiesImmunityAntibodiesPresent studyStrain B31Surface proteinsProtein BPrevious studiesVaccinationOspB.