title: Polymerase chain reaction typing of D21S11 short tandem repeat polymorphism by capillary electrophoresis. Allele frequencies and sequencing data in a population sample from central Italy.
abstract: Blood samples were collected from 100 individuals living in Central Italy and analysed for STR locus D21S11 by capillary electrophoresis on an ABI Prism 310 genetic analyzer. For fragment sizing, PCR amplification products, obtained using a 6-FAM 5'-labeled reverse primer and an unlabeled forward primer, were run with an internal size standard labeled with TAMRA dye and typed using the local reciprocal method. An allele ladder consisting of a mix of sequenced amplified products was also prepared. An Italian population database was established. No deviation from Hardy-Weinberg equilibrium was observed. The result of statistical analysis were highly informative (PD = 0.94; mean exclusion change = 0.66). DNA sequencing was performed on a set of representative alleles by Taq cycle sequencing using dye terminator labeling chemistry. A new structural variant was found.
authors.affiliation: Istituto di Medicina Legale, Università di Ancona, Policlinico Torrette, Italy.
authors.forename: L
authors.initials: L
authors.lastname: Buscemi
authors.forename: A
authors.initials: A
authors.lastname: Tagliabracci
authors.forename: C
authors.initials: C
authors.lastname: Sassaroli
authors.forename: F
authors.initials: F
authors.lastname: Bianchi
authors.forename: S
authors.initials: S
authors.lastname: Canestrari
authors.forename: D
authors.initials: D
authors.lastname: Rodriguez
mesh_terms: D000483:Alleles; D002891:Chromosomes, Human, Pair 21 / Q000235:genetics*; D004247:DNA / Q000032:analysis* / Q000097:blood; D015342:DNA Probes / Q000737:chemistry; D019075:Electrophoresis, Capillary / Q000379:methods*; D005787:Gene Frequency; D006801:Humans; D007558:Italy; D016133:Polymerase Chain Reaction / Q000379:methods*; D011110:Polymorphism, Genetic / Q000235:genetics; D012091:Repetitive Sequences, Nucleic Acid; D018401:Sample Size; D017422:Sequence Analysis, DNA
chemical_list: D015342:DNA Probes; D004247:DNA