Enzyme-linked DNA oligotyping. A practical method for clinical HLA-DNA typing

Ana M. Lazaro, Marcelo A. Fernandez-Viña, Ziying Liu, Peter Stastny

Research output: Contribution to journalArticle

18 Scopus citations

Abstract

The use of PCR and oligonucleotide hybridization has increased the accuracy and resolution of typing for HLA class II alleles, but current procedures, performed in batches, take too long and are not suited for testing single samples. We have developed a typing method using enzyme-linked oligonucleotides and PCR products immobilized in 96-well trays. Trays preloaded with typing probes, covalently linked with alkaline phosphatase, have been kept for weeks at 4°C without loss of enzyme-probe activity. Bound alkaline phosphatase was detected using a color reaction with enzymatic amplification which produces readings in 30 minutes. Coupled with a quick DNA preparation method, results can be obtained in about 4 hours. This method can be easily performed in small laboratories. It is accurate, reproductible, and sensitive, and will make oligotyping for HLA alleles more convenient for testing clinical samples.

Original languageEnglish (US)
Pages (from-to)243-248
Number of pages6
JournalHuman Immunology
Volume36
Issue number4
DOIs
StatePublished - Apr 1993

ASJC Scopus subject areas

  • Immunology and Allergy
  • Immunology

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