PMID- 15766735 OWN - NLM STAT- MEDLINE DCOM- 20050620 LR - 20091119 IS - 0009-9120 (Print) IS - 0009-9120 (Linking) VI - 38 IP - 4 DP - 2005 Apr TI - Genotyping single nucleotide polymorphisms by MALDI mass spectrometry in clinical applications. PG - 335-50 AB - Matrix-assisted laser desorption/ionization time-of-flight (MALDI-TOF) mass spectrometry has become one of the most powerful and widely applied technologies for SNP scoring and determination of allele frequencies in the post-genome sequencing era. Although different strategies for allele discrimination combined with MALDI were devised, in practice only primer extension methods are nowadays routinely used. This combination enables the rapid, quantitative, and direct detection of several genetic markers simultaneously in a broad variety of biological samples. In the field of molecular diagnostics, MALDI has been applied to the discovery of genetic markers, that are associated with a phenotype like a disease susceptibility or drug response, as well as an alternative means for diagnostic testing of a range of diseases for which the responsible mutations are already known. It is one of the first techniques with which whole genome scans based on single nucleotide polymorphisms were carried out. It is equally well suited for pathogen identification and the detection of emerging mutant strains as well as for the characterization of the genetic identity and quantitative trait loci mapping in farm animals. MALDI can also be used as a detection platform for a range of novel applications that are more demanding than standard SNP genotyping such as mutation/polymorphism discovery, molecular haplotyping, analysis of DNA methylation, and expression profiling. This review gives an introduction to the application of mass spectrometry for DNA analysis, and provides an overview of most studies using SNPs as genetic markers and MALDI mass spectrometric detection that are related to clinical applications and molecular diagnostics. Further, it aims to show specialized applications that might lead to diagnostic applications in the future. It does not speculate on whether this methodology will ever reach the diagnostic market. FAU - Tost, Jorg AU - Tost J AD - Centre National de Genotypage, Batiment G2, 2 Rue Gaston Cremieux, CP 5721, 91057 Evry Cedex, France. FAU - Gut, Ivo Glynne AU - Gut IG LA - eng PT - Journal Article PT - Review PL - United States TA - Clin Biochem JT - Clinical biochemistry JID - 0133660 RN - 0 (Genetic Markers) SB - IM MH - Animals MH - Base Sequence MH - Genetic Markers MH - Genetic Testing/*methods MH - Genotype MH - Humans MH - *Polymorphism, Single Nucleotide MH - Sensitivity and Specificity MH - Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization/*methods RF - 142 EDAT- 2005/03/16 09:00 MHDA- 2005/06/21 09:00 CRDT- 2005/03/16 09:00 PHST- 2004/07/13 00:00 [received] PHST- 2004/11/22 00:00 [revised] PHST- 2004/12/09 00:00 [accepted] PHST- 2005/03/16 09:00 [pubmed] PHST- 2005/06/21 09:00 [medline] PHST- 2005/03/16 09:00 [entrez] AID - S0009-9120(04)00360-1 [pii] AID - 10.1016/j.clinbiochem.2004.12.005 [doi] PST - ppublish SO - Clin Biochem. 2005 Apr;38(4):335-50. doi: 10.1016/j.clinbiochem.2004.12.005.