Skip to main content
Premium Trial:

Request an Annual Quote

Expedeon MagniPhi & QualiPhi DNA Polymerases

Expedeon has launched two high-fidelity polymerases, MagniPhi DNA Polymerase and QualiPhi DNA Polymerase. Expedeon offers the products in both 25- and 100-reaction kits, which contain DNA polymerases and their associated reaction buffers. The firm said MagniPhi — a wild-type form of the Phi29 DNA polymerase — is ideal for isothermal DNA amplification. According to Expedeon, MagniPhi's fidelity of synthesis produces up to 100 times fewer errors than Taq polymerase, while the amplification reaction yields more whole-genome amplification compared to normal PCR-based WGA techniques.

Expedeon's QualiPhi — a chimeric form of the Phi29 DNA Polymerase — has been engineered for enhanced sensitivity and efficiency while preserving the high processivity of the wild type Phi29. According to the firm, the polymerase's higher sensitivity allows improved amplification of DNA from low to high input concentrations and higher yields than the wild-type polymerase.

The Scan

Dropped Charges

The US Justice Department has dropped visa fraud charges against five Chinese researchers, according to the Wall Street Journal.

More Kids

The Associated Press says Moderna is expanding its SARS-CoV-2 vaccine study to included additional children and may include even younger children.

PNAS Papers on Rat Clues to Human Migration, Thyroid Cancer, PolyG-DS

In PNAS this week: ancient rat genome analysis gives hints to human migrations, WDR77 gene mutations in thyroid cancer, and more.

Purnell Choppin Dies

Purnell Choppin, a virologist who led the Howard Hughes Medical Institute, has died at 91, according to the Washington Post.