Sensitivity and specificity of denaturing high-pressure liquid chromatography for unknown protein C gene mutations

M. R. Taliani, S. C. Roberts, B. A. Dukek, R. K. Pruthi, W. L. Nichols, J. A. Heit

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

Screening methods for unknown DNA sequence variations are laborious, expensive, and relatively insensitive. To evaluate the sensitivity and specificity of denaturing high pressure liquid chromatography (DHPLC) screening for unknown protein C gene (PROC) mutations, we studied 31 PROC-deficient patients. Eleven amplimers containing 4 kb of the PROC gene and spanning all exons, splice junctions, and the putative promoter and 3′-untranslated regions were amplified by PCR for each patient. Each amplimer (n = 341) was sequenced with a fluorescence-based method, and screened by DHPLC. Sequencing identified 10 unique mutations and three polymorphisms. Combining all mutations and polymorphisms, 227 amplimers were homozygous wild-type, and 63 and 51 were heterozygous and homozygous mutant, respectively. DHPLC screening correctly identified all amplimers (100% sensitivity and specificity). DHPLC is a rapid, automated, sensitive and specific screening method for unknown mutations within the PROC gene, and may be a useful screening method for unknown mutations within other genes.

Original languageEnglish (US)
Pages (from-to)39-44
Number of pages6
JournalGenetic Testing
Volume5
Issue number1
DOIs
StatePublished - 2001

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Protein C
High Pressure Liquid Chromatography
Sensitivity and Specificity
Mutation
Genes
3' Untranslated Regions
Exons
Fluorescence
Polymerase Chain Reaction

ASJC Scopus subject areas

  • Genetics(clinical)

Cite this

Taliani, M. R., Roberts, S. C., Dukek, B. A., Pruthi, R. K., Nichols, W. L., & Heit, J. A. (2001). Sensitivity and specificity of denaturing high-pressure liquid chromatography for unknown protein C gene mutations. Genetic Testing, 5(1), 39-44. https://doi.org/10.1089/109065701750168680

Sensitivity and specificity of denaturing high-pressure liquid chromatography for unknown protein C gene mutations. / Taliani, M. R.; Roberts, S. C.; Dukek, B. A.; Pruthi, R. K.; Nichols, W. L.; Heit, J. A.

In: Genetic Testing, Vol. 5, No. 1, 2001, p. 39-44.

Research output: Contribution to journalArticle

Taliani, M. R. ; Roberts, S. C. ; Dukek, B. A. ; Pruthi, R. K. ; Nichols, W. L. ; Heit, J. A. / Sensitivity and specificity of denaturing high-pressure liquid chromatography for unknown protein C gene mutations. In: Genetic Testing. 2001 ; Vol. 5, No. 1. pp. 39-44.
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