Abstract:
:Purification methods of deoxyribonucleic acid (DNA) from degraded and contaminated forensic samples were investigated for polymerase chain reaction (PCR) analysis. DNA extracted from putrefied tissue or bloodstains sometimes contained the copurified contaminant, that was identified as the porphyrin compound (hematin). When contaminated but less degraded DNA was analyzed by PCR, it was necessary to eliminate the impurity by anion exchange column chromatography or chelating resin preparation, and ultrafiltration using Centricon microconcentrators. When highly degraded DNA was analyzed, trace amounts of high molecular weight DNA was recovered by electroelution method, and then further purified by both column chromatography and ultrafiltration. From thus purified samples, the amelogenin gene for sex determination could be amplified by dual PCR technique.
journal_name
J Forensic Scijournal_title
Journal of forensic sciencesauthors
Akane A,Shiono H,Matsubara K,Nakamura H,Hasegawa M,Kagawa Msubject
Has Abstractpub_date
1993-05-01 00:00:00pages
691-701issue
3eissn
0022-1198issn
1556-4029journal_volume
38pub_type
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pub_type: 杂志文章,评审
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更新日期:1999-01-01 00:00:00
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更新日期:1977-01-01 00:00:00
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journal_title:Journal of forensic sciences
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更新日期:1998-03-01 00:00:00
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