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New Products: Feb 25, 2011


Thermo Fisher Scientific announced this week the release of its new Pierce Protein Molecular Weight Ladders and PageRuler Protein Ladders for monitoring protein separations during gel electrophoresis.

The ladders are available either pre-stained or unstained with the Pierce pre-stained ladder set containing seven single-color proteins varying in size from 14.4 to 116 kilodaltons and the stained set containing six proteins varying from 20 to 120 kilodaltons.

The unstained PageRuler ladder sets come in three molecular weight ranges – a standard set that includes 14 proteins ranging from 10 to 200 kilodaltons; a broad range containing 11 proteins from 5 to 250 kilodaltons; and a low range containing seven proteins from 5 to 100 kilodaltons.

The prestained PageRuler ladders contain 10 proteins ranging from 10 to 170 kilodaltons with two different colored bands for reference. The prestained PageRuler Plus set includes 9 proteins from 10 to 250 kilodaltons with two orange bands and one green band.

Kinexus announced this week that predictions of over 30 million human kinase-substrate interactions are now available at its updated PhosphoNET database.

The database now features information on more than 93,000 experimentally confirmed human phosphorylation sites as well as 560,000 additional phosphorylation sites predicted with a new algorithm, the company said.

The Scan

Pfizer-BioNTech Seek Full Vaccine Approval

According to the New York Times, Pfizer and BioNTech are seeking full US Food and Drug Administration approval for their SARS-CoV-2 vaccine.

Viral Integration Study Critiqued

Science writes that a paper reporting that SARS-CoV-2 can occasionally integrate into the host genome is drawing criticism.

Giraffe Species Debate

The Scientist reports that a new analysis aiming to end the discussion of how many giraffe species there are has only continued it.

Science Papers Examine Factors Shaping SARS-CoV-2 Spread, Give Insight Into Bacterial Evolution

In Science this week: genomic analysis points to role of human behavior in SARS-CoV-2 spread, and more.