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HLA-DQB1 genotyping with simple automated DNA sequencing and single-strand conformation polymorphism analysis
1Department of Forensic Science, Central Police University, Taoyuan, Taiwan.
Journal of the Formosan Medical Association = Taiwan Yi Zhi
|September 23, 2000
Summary
This study developed a simple, rapid, and economic human leukocyte antigen (HLA) DQB1 genotyping method using automated sequencing and single-strand conformation polymorphism (SSCP) for forensic applications.
Area of Science:
- Forensic Science
- Genetics
- Immunogenetics
Background:
- Accurate human leukocyte antigen (HLA) typing is crucial for bone marrow transplantation matching.
- HLA genotyping is valuable for human forensic identification due to high polymorphism.
Purpose of the Study:
- To establish a simple, rapid, and economic HLA analysis system.
- To develop a system suitable for forensic applications.
Main Methods:
- Amplification of the HLA class II DQB1 gene using polymerase chain reaction (PCR) with specific primers.
- Analysis of nucleotide sequences via automated DNA sequencing.
- Confirmation of genotypes using single-strand conformation polymorphism (SSCP) analysis.
Main Results:
- Identified 15 alleles and 37 genotypes in 86 Taiwanese subjects.
- The most frequent allele was 03011 (27.9%); the most frequent genotype was 03011/03011 (15.1%).
- Achieved high allelic diversity (0.862) and power of discrimination (0.948).
Conclusions:
- Combined automated sequencing with a single primer pair and SSCP offers a simple, rapid, and economic DQB1 gene analysis tool.
- This method is simpler and faster than multi-primer sequencing methods.
- Utilizing a single primer set avoids preferential annealing issues.