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In This Issue

In this issue pv

doi:10.1038/nchembio0708-v


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Editorial

Correcting the scientific record p381

doi:10.1038/nchembio0708-381

The retraction of a Nature Chemical Biology paper is a step toward a full accounting of a case of scientific misconduct.


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Meeting Report


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News and Views

Proteomes take the electrophilic bait pp387 - 388

Thomas Kodadek

doi:10.1038/nchembio0708-387

New electrophilic reagents for activity-based protein profiling (ABPP) can discriminate between nucleophilic amino acids, such as cysteine, that are in different protein microenvironments. These reagents extend the reach of ABPP beyond serine proteases and other proteins with hyperreactive nucleophiles.

See also: Brief Communication by Weerapana et al.


Unraveling a molecular target of macrolides pp388 - 389

Karl-Heinz Altmann & Erick M Carreira

doi:10.1038/nchembio0708-388

Leucascandrolide A and neopeltolide are structurally related natural products with potent growth inhibitory activity. The synthesis of a designed analog of leucascandrolide A and its evaluation in a yeast haploinsufficiency screen has revealed the cytochrome bc1 complex as a molecular target of these compounds.

See also: Article by Ulanovskaya et al.


Peering inside the black box to find enzyme-bound intermediates pp390 - 391

Craig Townsend

doi:10.1038/nchembio0708-390

The NMR structures of three intermediates bound to the pyridoxal-synthesizing enzyme Pdx1 illuminate its complex catalytic cycle. The success of this approach with a high-molecular-weight protein should encourage further applications of NMR techniques for characterizing enzyme reaction pathways.

See also: Article by Hanes et al.


Fish 'n clicks pp391 - 392

James K Chen

doi:10.1038/nchembio0708-391

The zebrafish has provided insights into the mechanisms of vertebrate development, in large part due to its amenability to optical imaging. While fluorescent proteins and other genetically encoded reporters are valuable imaging tools, synthetic probes can reveal dynamical processes such as glycan biosynthesis that are undetectable by conventional methods.


Modest membrane hydrogen bonds deliver rich results pp393 - 394

Gevorg Grigoryan & William F DeGrado

doi:10.1038/nchembio0708-393

The significance of hydrogen bonds in protein structure was recognized as early as 1936 by Mirsky and Pauling, and the importance of hydrogen bonds in water-soluble proteins has since been studied extensively. Now a new paper takes an important step forward in characterizing the energetic significance of hydrogen bonds in membrane-soluble proteins.


Research highlights p395

doi:10.1038/nchembio0708-395


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Brief Communications


Small-molecule activation of neuronal cell fate pp408 - 410

Jay W Schneider, Zhengliang Gao, Shijie Li, Midhat Farooqi, Tie-Shan Tang, Ilya Bezprozvanny, Doug E Frantz & Jenny Hsieh

doi:10.1038/nchembio.95

no alt info

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Articles

A mammalian functional nitrate reductase that regulates nitrite and nitric oxide homeostasis pp411 - 417

Emmelie Å Jansson, Liyue Huang, Ronny Malkey, Mirco Govoni, Carina Nihlén, Annika Olsson, Margareta Stensdotter, Joel Petersson, Lena Holm, Eddie Weitzberg & Jon O Lundberg

doi:10.1038/nchembio.92

no alt info

Synthesis enables identification of the cellular target of leucascandrolide A and neopeltolide pp418 - 424

Olesya A Ulanovskaya, Jelena Janjic, Masato Suzuki, Simran S Sabharwal, Paul T Schumacker, Stephen J Kron & Sergey A Kozmin

doi:10.1038/nchembio.94

no alt info

See also: News and Views by Altmann & Carreira



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Retraction

Retraction: Small molecule–based reversible reprogramming of cellular lifespan p431

Jaejoon Won, Mina Kim, Nuri Kim, Jin Hee Ahn, Woo Gil Lee, Sung Soo Kim, Ki-Young Chang, Yong-Weon Yi & Tae Kook Kim

doi:10.1038/nchembio0708-431


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