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Eighty-Seven Percent Right Isn't Too Bad

Steven Briggs reports in PNAS that about 13 percent of the Arabidopsis proteome is incomplete due to missing and incomplete gene models. He and his colleagues isolated Arabidopsis proteins, determined the amino acid sequences of 144,079 peptides by tandem mass spectrometry, and found that while 126,055 peptides resided in existing gene models, 18,024 were novel. The authors say that "much is to be gained by joining forces, and incorporating proteomic evidence upfront into the genomics pipelines."


The Scan

Pig Organ Transplants Considered

The Wall Street Journal reports that the US Food and Drug Administration may soon allow clinical trials that involve transplanting pig organs into humans.

'Poo-Bank' Proposal

Harvard Medical School researchers suggest people should bank stool samples when they are young to transplant when they later develop age-related diseases.

Spurred to Develop Again

New Scientist reports that researchers may have uncovered why about 60 percent of in vitro fertilization embryos stop developing.

Science Papers Examine Breast Milk Cell Populations, Cerebral Cortex Cellular Diversity, Micronesia Population History

In Science this week: unique cell populations found within breast milk, 100 transcriptionally distinct cell populations uncovered in the cerebral cortex, and more.