DNA microparticle formation in the course of a polymerase chain reaction (PCR) is reported. PCR with gene-specific and partially complementary primers and yeast genomic DNA as a template was shown to yield spherical DNA-composed microparticles as well as their aggregates and conglomerates, along with routine linear DNA. Microparticles were formed at late PCR stages and could be easily identified by the reaction with fluorescently labeled oligonucleotide primers or by staining of the PCR mixture with fluorescent dyes (acridine orange, propidium iodide or DAPI). According to the data of epifluorescent and electron microscopy, the microparticle size varied from 500 nm to 3-4 microm and the particles were multimeric star-shaped spheres or aggregates formed by several fused microspheres. Some properties of the microspheres were studied. It was found that the Mg2+ cations comprising the PCR buffer played a key role in the formation of microparticles and the stabilization of their structures.
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| Evidence ID | Analyze ID | Gene/Complex | Systematic Name/Complex Accession | Qualifier | Gene Ontology Term ID | Gene Ontology Term | Aspect | Annotation Extension | Evidence | Method | Source | Assigned On | Reference |
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| Evidence ID | Analyze ID | Gene | Gene Systematic Name | Phenotype | Experiment Type | Experiment Type Category | Mutant Information | Strain Background | Chemical | Details | Reference |
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| Evidence ID | Analyze ID | Gene | Gene Systematic Name | Disease Ontology Term | Disease Ontology Term ID | Qualifier | Evidence | Method | Source | Assigned On | Reference |
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| Evidence ID | Analyze ID | Regulator | Regulator Systematic Name | Target | Target Systematic Name | Direction | Regulation of | Happens During | Regulator Type | Direction | Regulation Of | Happens During | Method | Evidence | Strain Background | Reference |
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| Site | Modification | Modifier | Source | Reference |
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| Evidence ID | Analyze ID | Interactor | Interactor Systematic Name | Interactor | Interactor Systematic Name | Allele | Assay | Annotation | Action | Phenotype | SGA score | P-value | Source | Reference | Note |
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| Evidence ID | Analyze ID | Interactor | Interactor Systematic Name | Interactor | Interactor Systematic Name | Assay | Annotation | Action | Modification | Source | Reference | Note |
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| Complement ID | Locus ID | Gene | Species | Gene ID | Strain background | Direction | Details | Source | Reference |
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| Evidence ID | Analyze ID | Dataset | Description | Keywords | Number of Conditions | Reference |
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