Document Detail


Rapid genotyping of HLA-B27 among Korean population by real-time PCR melting curve analysis.
MedLine Citation:
PMID:  21756888     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
BACKGROUND: Real-time PCR and melting curve analysis is the relatively recent method for HLA-B27 genotyping, which has advantages of being simple and rapid. METHODS: The accuracy of melting curve analysis for HLA-B27 was assessed in 153 clinical samples and 52 DNA samples from International Histocompatibility Workshop (IHW) cell lines, with sequence-based typing (SBT) as the reference method. We predicted melting reaction for various HLA-B27 subtypes using simulation software. RESULTS: For clinical samples, 53 HLA-B27-positive and 100 negative results by melting curve analysis were confirmed by completely concordant SBT results. The B*27:05 allele was found in 50 patients, and the B*27:04 allele in 3 patients. Among 62 known alleles, 21 alleles had differences in the target sequence, including 10 alleles having mismatches in the primer binding site. In these alleles, differences in melting points (T(m)) were predicted to be ≤1.2°C. The predicted results were obtained when IHW samples were tested, which revealed slight lower T(m) for B*27:06 and negative results for B*27:07. CONCLUSIONS: Genotyping of HLA-B27 by melting curve analysis was fast and reliable for routine laboratory testing for frequent alleles. In silico melting simulations provided useful information about the utility and limitation of this method for diverse HLA-B27 alleles.
Authors:
Seon Young Kim; Ho Eun Chang; Sang Hoon Song; Kyoung Un Park; Junghan Song
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-7-7
Journal Detail:
Title:  Clinica chimica acta; international journal of clinical chemistry     Volume:  -     ISSN:  1873-3492     ISO Abbreviation:  -     Publication Date:  2011 Jul 
Date Detail:
Created Date:  2011-7-15     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  1302422     Medline TA:  Clin Chim Acta     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2011. Published by Elsevier B.V.
Affiliation:
Department of Laboratory Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea.
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