Search results for "Conserved sequence"

showing 3 items of 103 documents

Conserved TCR β chain usage in reactive arthritis; evidence for selection by a putative HLA-B27-associated autoantigen

2002

Previous work suggested that expanded CD8+ T-cell clones in the synovial fluid (SF) of HLA-B27+ patients with reactive arthritis (ReA) preferentially use the T-cell receptor variable region (TCRBV) 1, similar CDR3 sequences, and joining region (BJ) 2S3. To determine the range of conservation and disease-specificity of CDR3-sequences, we analyzed the TCRBV1-J2S3 repertoire from 33 healthy HLA-B27+ individuals, patients with various types of spondyloarthropathies (SpA), and with rheumatoid arthritis (RA) by CDR3-spectratyping. After collection and database submission of all available TCRB-CDR3 from HLA-B27-restricted or SpA-derived T cells, we systematically screened the entire human sequence…

musculoskeletal diseasesGeneticsHLA-B27T cellImmunologyT-cell receptorArthritisGeneral MedicineBiologymedicine.disease_causemedicine.diseaseBiochemistryConserved sequenceAutoimmunitymedicine.anatomical_structureAntigenGeneticsmedicineImmunology and Allergyskin and connective tissue diseasesCD8Tissue Antigens
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The mitogen-activated protein kinase p38 pathway is conserved in metazoans: Cloning and activation of p38 of the SAPK2 subfamily from the sponge Sube…

2000

Our recent data suggest that during auto- and allograft recognition in sponges (Porifera), cytokines are differentially expressed. Since the mitogen-activated protein kinase (MAPK) signal transduction modulates the synthesis and release of cytokines, we intended to identify one key molecule of this pathway. Therefore, a cDNA from the marine sponge Suberites domuncula encoding the MAPK was isolated and analyzed. Its encoded protein is 366 amino acids long (calculated Mr 42 209), has a TGY dual phosphorylation motif in protein kinase subdomain VIII and displays highest overall similarity to the mammalian p38 stress activated protein kinase (SAPK2), one subfamily of MAPKs. The sponge protein w…

xHot TemperatureUltraviolet RaysMolecular Sequence DataMarine BiologyBiologyMitogen-activated protein kinase kinasep38 Mitogen-Activated Protein KinasesMAP2K7Osmotic PressureAnimalsASK1Amino Acid Sequencec-RafGenes Immediate-EarlyConserved SequencePhylogenyGene LibraryModels GeneticSequence Homology Amino AcidMAP kinase kinase kinaseCyclin-dependent kinase 2Hydrogen PeroxideCell BiologyGeneral Medicinebiology.organism_classificationPoriferaEnzyme ActivationSuberites domunculaBiochemistrybiology.proteinCyclin-dependent kinase 9Mitogen-Activated Protein KinasesSequence AnalysisSignal TransductionBiology of the Cell
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Conservation of the positions of metazoan introns from sponges to humans

2002

Abstract Sponges (phylum Porifera) are the phylogenetic oldest Metazoa still extant. They can be considered as reference animals (Urmetazoa) for the understanding of the evolutionary processes resulting in the creation of Metazoa in general and also for the metazoan gene organization in particular. In the marine sponge Suberites domuncula , genes encoding p38 and JNK kinases contain nine and twelve introns, respectively. Eight introns in both genes share the same positions and the identical phases. One p38 intron slipped for six bases and the JNK gene has three more introns. However, the sequences of the introns are not conserved and the introns in JNK gene are generally much longer. Intron…

xMolecular Sequence Datap38 Mitogen-Activated Protein KinasesExonGene duplicationGeneticsAnimalsHumansCoding regionGroup I catalytic intronAmino Acid SequenceGeneConserved SequencePhylogenyCaenorhabditis elegansGeneticsBase SequenceSequence Homology Amino AcidbiologyCalcium-Binding ProteinsMicrofilament ProteinsJNK Mitogen-Activated Protein KinasesIntronDNASequence Analysis DNAGeneral MedicineGroup II intronbiology.organism_classificationIntronsPoriferaDNA-Binding ProteinsMitogen-Activated Protein KinasesSequence AlignmentGene
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