Search results for "STR typing"

showing 3 items of 3 documents

The molecular characterization of a depurinated trial DNA sample can be a model to understand the reliability of the results in forensic genetics

2014

The role of DNA damage in PCR processivity/fidelity is a relevant topic in molecular investigation of aged/forensic samples. In order to reproduce one of the most common lesions occurring in postmortem tissues, a new protocol based on aqueous hydrolysis of the DNA was developed in vitro. Twenty-five forensic laboratories were then provided with 3.0 μg of a trial sample (TS) exhibiting, in mean, the loss of 1 base of 20, and a molecular weight below 300 bp. Each participating laboratory could freely choose any combination of methods, leading to the quantification and to the definition of the STR profile of the TS, through the documentation of each step of the analytical approaches selected. …

DNA depurination; Forensic genetics; PCR fidelity; STR typing; Biochemistry; Clinical BiochemistryPCR fidelityGenotyping TechniquesDNA damageSample (material)Clinical BiochemistryDNA depurinationReproducibility of ResultForensic geneticsBiologyPolymerase Chain ReactionBiochemistryNOAnalytical Chemistrylaw.inventionDNA depurination; PCR fidelity; STR typing; forensic genetics.Settore MED/43 - Medicina LegalelawSettore BIO/13 - Biologia ApplicataGenotypeHumansSTR typingGenotyping TechniquesPolymerase chain reactionProtocol (science)GeneticsMedicine (all)Reproducibility of ResultsForensic geneticDNAAmpliconDNA FingerprintingDNA depurination; Forensic genetics; PCR fidelity; STR typingSettore BIO/18 - GeneticaDNA depurination Forensic genetics PCR fidelity STR typingDNA profilingSettore MED/03 - Genetica MedicaMicrosatellite RepeatGenotyping TechniqueDNA depurination; Forensic genetics; PCR fidelity; STR typing;Microsatellite RepeatsHuman
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Second generation sequencing of three STRs D3S1358, D12S391 and D21S11 in Danes and a new nomenclature for sequenced STR alleles

2014

Second generation sequencing (SGS) may revolutionize the field of forensic STR typing. Two of the essential requirements for implementation of an SGS based approach for forensic investigations are (1) establishment of adequate frequency databases and (2) adoption of a new STR nomenclature. We report the STR sequences and allele frequencies of three STR loci: D3S1358, D12S391 and D21S11 in 197 unrelated Danes. We used a new STR nomenclature that depicts the locus name used in forensic genetics, the length of the repeat region divided by the repeat length (typically 4 nucleotides) and detailed sequence information of possible sub-repeats and SNPs within the amplified fragment.

GeneticsDenmarkSTR multiplex systemSingle-nucleotide polymorphismLocus (genetics)Sequence Analysis DNABiologyPathology and Forensic MedicineGene FrequencyTerminology as TopicGeneticsHumansStr typingAlleleAllele frequencyNomenclatureForensic geneticsMicrosatellite RepeatsForensic Science International: Genetics
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Whole genome amplification—the solution for a common problem in forensic casework?

2004

Abstract To assess the quality of amplified DNA obtained by whole genome amplification, 17 independent STR loci have been typed using two multiplex kits. Results have been compared for correct genotypes, heterozygous peak balance and allelic dropout.

GeneticsWhole Genome Amplificationchemistry.chemical_compoundchemistrySTR multiplex systemGenotypeStr lociMultiplexStr typingGeneral MedicineAlleleBiologyDNAInternational Congress Series
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