6533b7dafe1ef96bd126d87a

RESEARCH PRODUCT

Cholinesterase variants: rapid characterisation by PCR/SSCP and evidence for molecular homogeneity.

Matthias HundtThomas HöhlerK H Meyer Zum BüschenfeldePeter M. SchneiderCh. Rittner

subject

AdultMaleGenotypeGenetic LinkageMolecular Sequence DataDibucainePolymerase Chain ReactionFrameshift mutationlaw.inventionlawGenetic linkageGenotypeGeneticsCholinesterasesHumansPoint MutationGenetic TestingAlleleFrameshift MutationGenetics (clinical)PolymerasePolymerase chain reactionAllelesPolymorphism Single-Stranded ConformationalCholinesteraseGeneticsJordanbiologyBase SequencePoint mutationSequence Analysis DNAMolecular biologyPedigreebiology.proteinFemaleMetabolism Inborn ErrorsResearch Article

description

We have applied the technique of PCR-SSCP (polymerase chain reaction-single stranded conformation polymorphism) to characterise the molecular basis of cholinesterase deficiency and variants in a Jordanian family. PCR-SSCP proved to be a quick and sensitive method of screening cholinesterase variants in a clinical setting. An AG insertion at position 351 was found to cause a silent allele, for which the parents were heterozygous and three children homozygous. In addition, the father and two sons were heterozygous for an A to G transition at position 209, known to cause the dibucaine resistant variant. No linkage to the K variant was found, which has been reported previously in white populations. These findings suggest considerable homogeneity in the molecular basis of CHE variants between different ethnic groups.

10.1136/jmg.32.2.109https://pubmed.ncbi.nlm.nih.gov/7760318