This story originally ran on May 10.

Though in proteomics the proteome is, of course, the ultimate concern, mass spec-based approaches rely on DNA reference databases for matching experimental spectra and peptide sequences to their corresponding proteins.

This isn't a problem so long as researchers confine their studies to organisms with fully sequenced, well-annotated genomes. It can become an issue, however, for scientists working on less commonly investigated, non-model systems.

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In PNAS this week: genomic study of group B Streptococcus evolution, selection on the X chromosome in great apes, and more.

Changing the fat and fiber content of people's diets affects their gut microbiome, metabolome, and colon cancer risk, researchers say.

Broken links are found throughout academic publications, and some services are trying to combat such link decay.

Nick Stockton at Wired says that a pause in studying genome-editing tools should be used to find a path forward.