Twenty four samples of DNA from 23 unrelated individuals were analyzed for the presence of a novel restriction fragment length polymorphism (RFLP) involving the proto-oncogene ETS-1 at an Xba I site. Four samples from unrelated individuals lacked an Xba I site, giving rise to a longer restriction fragment detectable by Southern analysis; two samples were from normal tissue, and two were from ac...

We present here a technique for correlating T-RFLP fingerprints with genomic clone libraries, using a in silico restriction analysis, in order to identify the microbial (Bacteria and Archaea) communities present in an environmental sample. This technique is very useful for independent of culture metagenomic studies. We also show some results on the application of this technique to 3 environment...

Mycobacterium tuberculosis sputum isolates from 38 patients, obtained in the first 6 months of 1997 in Havana, Cuba, were characterized by IS6110 restriction fragment length polymorphism (RFLP) analysis and the double-repetitive-element PCR (DRE-PCR) method. Among 41 strains from 38 patients, 24 and 25 unique patterns, and 5 and 4 cluster patterns, were found by the RFLP and DRE-PCR methods, re...

An outbreak of an unusual tetracycline-sensitive, rifampicin- and ciprofloxacin-resistant, methicillin-resistant Staphylococcus aureus (MRSA) strain at a large teaching hospital was investigated. Two typing methods, phage typing and restriction fragment length polymorphism (RFLP) by pulsed-field gel electrophoresis (RFLP-PFGE), gave conflicting results which were clarified by phylogenetic analy...

A new convenient molecular typing method, simultaneous polymerase chain reaction (PCR)-restriction fragment length polymorphism (RFLP) analysis, for three different genes of methicillin-resistant Staphylococcus aureus (MRSA) was evaluated using 35 isolates of MRSA and comparing results with those previously reported for sequencing-based spa typing. Twenty-nine isolates of the most frequent prot...