Background: Hemophilia B is an X-linked recessive coagulation disorder caused by factor IX deficiency. Analysis of factor IX gene polymorphisms is considered the best approach for prenatal diagnosis and carrier detection of hemophilia B where the identification of gene mutation is not easily possible. Objective: To study the frequency of three factor IX-linked restriction fragment length polymo...

A collection of 356 isolates of Aspergillus spp. collected during 2006 and 2007 from grapevines in northern Italy were identified through Internal Transcribed Spacer based Restriction Fragment Length Polymorphism (ITS-RFLP) and tested for ochratoxin A (OTA) production. Restriction endonuclease digestion of the ITS products using the endonucleases HhaI, HinfI and RsaI, distinguished five differe...

The fraudulent practice of cheap meat in costly meat is common nowadays. Therefore, there is need of precise identification of the meat species. We included in our study dog meat, as it is the most easily available cheap meat for adulteration. For specific identification of origin of meat animal species, we evaluated the common meat animal species including dog meat by PCR –RFLP technique. All ...

Restriction endonuclease analysis was used to determine the methylation status of collagen, c-Ha-ras, and thymidine kinase genes in human fibroblasts and tumor cell lines. When digested with the methylation sensitive enzymes HpaII or HhaI, the DNA of each cell line generated a unique banding pattern for each gene examined. No generalized trend of gene hypomethylation or decreases in overall cyt...

poproteins in mouse peritoneal macrophages. J Mol Med 2000;78:217–27. 3. Wenham PR, Sedky A, Spooner RJ. Apolipoprotein E phenotyping: a word of caution. Ann Clin Biochem 1991;28:599–605. 4. Hixson JE, Vernier DT. Restriction isotyping of human apolipoprotein E by gene amplification and cleavage with HhaI. J Lipid Res 1990;31:545–8. 5. Somsen GW, Welten HT, Mulder FP, Swart CW, Kema IP, de Jong...

Restriction endonucleases recognize short DNA sequences and cleave double-stranded DNA at specific sites within or adjacent to the recognition sequences. Restriction endonuclease cleavage of DNA into discrete fragments is one of the most basic procedures in molecular biology. The first method presented in this unit is the cleavage of a single DNA sample with a single restriction endonuclease. A...

The restriction endonuclease BliAI, an isoschizomer of ClaI, which recognizes the sequence 5 ́AT↓CGAT 3 ́, was purified from a natural isolate identified as Bacillus licheniformis. The restriction endonuclease was isolated from cell extracts using single-step purification by phosphocellulose column chromatography. The restriction endonuclease is active at 37oC and over a wide range of pH and salt...

UNLABELLED Restriction endonucleases are indispensable tools in molecular biology and biotechnology. Type II restriction endonucleases are part of restriction modification systems. DNA fragment extraction and restriction mapping are the basis for several biotechnological activities. WebFARM is a server application for identifying restriction endonuclease recognition sites and to give informatio...

DNA generated by the polymerase chain reaction (PCR) (1) containing terminal restriction endonuclease recognition sites to permit cloning usually relies on the use of unphosphorylated primers incorporating a restriction endonuclease recognition site of choice plus 3 —4 extra 5' bases flanking that site. Various sites (Notl, Xhol and Xbal (2), for example) incorporated into the termini of PCR pr...