Aptamers are specific binding nucleic acids that emerge from in vitro selection. During the systematic evolution of ligands by exponential enrichment (SELEX) procedure, analysis of the sequences of the numerous selected individual molecules becomes an important step in the final stage of aptamer selection. The sequencing of cloned aptamers from the selected pool generally reveals groups of iden...

Microbial ecologists have discovered novel rRNA genes (rDNA) in mesophilic soil habitats worldwide, including sequences that affiliate phylogenetically within the division Crenarchaeota (domain Archaea). To characterize the spatial distribution of crenarchaeal assemblages in mesophilic soil habitats, we profiled amplified crenarchaeal 16S rDNA sequences from diverse soil ecosystems by using PCR...

Infrapopulation genetic variation of the oioxenous, hermaphroditic flatworm Nasicola klawei (Monogenea: Capsalidae) infecting the nasal cavities of nine yellowfin tuna, Thunnus albacares, from the Gulf of Mexico was analyzed using the first internal transcribed spacer (ITS1) single strand conformation polymorphism (SSCP), ITS1 sequencing, and amplified fragment length polymorphism (AFLP). Of a ...

AIMS To detect clonal T cell populations by high resolution polymerase chain reaction (PCR) using fluorescently labelled nucleotides and analysis on an ABI 377 DNA sequencer, and to evaluate this method using low ionic strength single strand conformation polymorphism (LIS-SSCP) analysis. METHODS DNA samples from 11 patients diagnosed with a T cell disease and 15 with no known T cell disorder ...

BACKGROUND Mutations in codons 12, 13, and 61 of the N-ras gene are common alterations in cutaneous malignant melanoma. We evaluated pyrosequencing, a simple and rapid method used mainly for single-nucleotide polymorphism analysis, as a possible alternative to single-strand conformation polymorphism (SSCP) analysis and sequencing of N-ras. METHODS We evaluated the sensitivity and accuracy of ...

Detection and identification of point mutations in genomic DNA has proven increasingly important in biomedical research. A variety of methods for the analysis of single base substitutions have been proposed among which Single Strand Conformational Polymorphism (SSCP) quickly gained success due to its simplicity. In this work we present an analytical on-line tool which combines the ease of solid...

Either PCR-mediated single strand conformation polymorphism (SSCP) analysis or DNA sequencing of rpoB DNA (157 bp) can be used as a rapid screening method for the detection of mutations related to the rifampin resistance of Mycobacterium tuberculosis. However, due to the nonspecific amplification of rpoB DNA from nontuberculous mycobacteria these methods cannot be directly applied to clinical s...