New articles from eLife – January 3, 2022

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January 3, 2022

New articles from eLife

 

 

Looking for a good read over the holiday? Our Features Articles discuss research culture, your career and more

MAGAZINE

STRUCTURAL BIOLOGY AND MOLECULAR BIOPHYSICS

Building a community to engineer synthetic cells and organelles from the bottom-up

Oskar Staufer, Jacqueline A De Lora ... Gabriel P López

The creation of synthetic cells and organelles will open doors to new collaborative and funding opportunities.

LATEST RESEARCH

GENETICS AND GENOMICS

aCPSF1 cooperates with terminator U-tract to dictate archaeal transcription termination efficacy

Jie Li, Lei Yue ... Xiuzhu Dong

Term-seq, genetic and biochemical experiments reveal that the trans-action factor aCPSF1 and the terminator U-tract cis-element work in a noteworthy two-in-one termination mode in archaea, and may represent an archetypal mode of the eukaryotic RNA polymerase II termination machinery.

BIOCHEMISTRY AND CHEMICAL BIOLOGY

Allosteric mechanism of signal transduction in the two-component system histidine kinase PhoQ

Bruk Mensa, Nicholas F Polizzi ... William F DeGrado

Mutations along the signaling pathway of the E. coli sensor histidine kinase PhoQ alter signal gain and ligand-sensitivity by altering thermodynamic allosteric coupling between domains.

GENETICS AND GENOMICSMICROBIOLOGY AND INFECTIOUS DISEASE

Pan-genome analysis identifies intersecting roles for Pseudomonas specialized metabolites in potato pathogen inhibition

Alba Pacheco-Moreno, Francesca L Stefanato ... Andrew W Truman

Genomics and genetics were used to identify specialized metabolites employed by Pseudomonas bacteria to suppress the growth of potato pathogens, which revealed a key role for cyclic lipopeptides.

MICROBIOLOGY AND INFECTIOUS DISEASE

Reverting the mode of action of the mitochondrial FOF1-ATPase by Legionella pneumophila preserves its replication niche

Pedro Escoll, Lucien Platon ... Carmen Buchrieser

During infection, L. pneumophila reverses the ATP-synthase activity of the mitochondrial FOF1-ATPase to ATP-hydrolase activity in a type 4 secretion-dependent manner to prevent early cell death, thereby preserving its replication niche.

DEVELOPMENTAL BIOLOGY

Delilah, prospero, and D-Pax2 constitute a gene regulatory network essential for the development of functional proprioceptors

Adel Avetisyan, Yael Glatt ... Adi Salzberg

Novel binding sites within a chordotonal-specific enhancer of the delilah gene integrates opposing signals of Prospero and D-Pax2 to control the alternative differentiation programs of cap versus scolopale cells.

NEUROSCIENCE

Spatial tuning of face part representations within face-selective areas revealed by high-field fMRI

Jiedong Zhang, Yong Jiang ... Sheng He

Consistent spatial clustering and fine-scale neural tuning to different face parts were found within the face-processing regions, which may be the neural implementation of efficient neural computation for face identification.

NEUROSCIENCE

Partial connectomes of labeled dopaminergic circuits reveal non-synaptic communication and axonal remodeling after exposure to cocaine

Gregg Wildenberg, Anastasia Sorokina ... Bobby Kasthuri

3D serial electron microscopy reveals that individual dopamine axons in the nucleus accumbens contain different varicosity types based on their vesicle contents, rarely make synapses, and undergo major structural plasticity in response to cocaine.

NEUROSCIENCE

Functional independence of endogenous μ- and δ-opioid receptors co-expressed in cholinergic interneurons

Seksiri Arttamangkul, Emily J Platt ... David Farrens

Endogenous µ- and δ-opioid receptors do not form stable heterodimers in cholinergic interneurons.

BIOCHEMISTRY AND CHEMICAL BIOLOGYCELL BIOLOGY

Defining the interactome of the human mitochondrial ribosome identifies SMIM4 and TMEM223 as respiratory chain assembly factors

Sven Dennerlein, Sabine Poerschke ... Peter Rehling

Definition of the mitoribosome interactome revealed inner membrane proteins and elucidated new assembly factors of the cytochrome c reductase and cytochrome c oxidase.

IMMUNOLOGY AND INFLAMMATION

Inflammasome activation leads to cDC1-independent cross-priming of CD8 T cells by epithelial cell-derived antigen

Katherine A Deets, Randilea Nichols Doyle ... Russell E Vance

A mouse model of inducible inflammasome activation in intestinal epithelial cells reveals separate inflammasome-dependent and -independent cross-presentation pathways for epithelial cell-derived antigen.

NEUROSCIENCE

Convergent, functionally independent signaling by mu and delta opioid receptors in hippocampal parvalbumin interneurons

Xinyi Jenny He, Janki Patel ... Matthew R Banghart

Mu and delta opioid receptors signal independently in hippocampal parvalbumin interneurons to regulate somato-dendritic excitability and synaptic transmission, with the delta opioid receptor dominating the response to enkephalin.

NEUROSCIENCE

Ripples reflect a spectrum of synchronous spiking activity in human anterior temporal lobe

Ai Phuong S Tong, Alex P Vaz ... Kareem A Zaghloul

A continuum of ripple oscillations in human anterior temporal lobe reflects the dynamic synchrony of populations of neurons during memory retrieval.

DEVELOPMENTAL BIOLOGYSTEM CELLS AND REGENERATIVE MEDICINE

Neural control of growth and size in the axolotl limb regenerate

Kaylee M Wells, Kristina Kelley ... Catherine D McCusker

Signaling from the limb nerves regulates the rate of growth and the overall size of the regenerating limb.

NEUROSCIENCE

Presynaptic stochasticity improves energy efficiency and helps alleviate the stability-plasticity dilemma

Simon Schug, Frederik Benzing, Angelika Steger

Presynaptic plasticity in simulated neural networks with a simple biologically plausible learning rule improves metabolic efficiency and lifelong learning capabilities.

CELL BIOLOGY

V-ATPase V0a1 promotes Weibel–Palade body biogenesis through the regulation of membrane fission

Yasuo Yamazaki, Yuka Eura, Koichi Kokame

A V-ATPase component and protein kinase D are required for the segregation of Weibel–Palade bodies from the trans-Golgi network.

MEDICINE

Bisphosphonate drugs have actions in the lung and inhibit the mevalonate pathway in alveolar macrophages

Marcia A Munoz, Emma K Fletcher ... Michael J Rogers

As well as preventing bone loss, bisphosphonate drugs may boost early immune responses in the lung by acting directly on alveolar macrophages that form one of the first lines of defence against infection.

ECOLOGYEVOLUTIONARY BIOLOGY

Reversal of the adipostat control of torpor during migration in hummingbirds

Erich R Eberts, Christopher G Guglielmo, Kenneth C Welch

Ruby-throated hummingbirds switch from using torpor to survive nighttime energy emergencies in the breeding season to using it to spare fat stores and gain premigratory mass in the late summer.

CANCER BIOLOGYCELL BIOLOGY

Single-cell transcriptome analysis identifies a unique tumor cell type producing multiple hormones in ectopic ACTH and CRH secreting pheochromocytoma

Xuebin Zhang, Penghu Lian ... Hanzhong Li

A novel multi-hormones secreting chromaffin-like cell type was identified using single-cell RNA sequencing, suggesting the molecular mechanism of ectopic ACTH and CRH pheochromocytoma associated with Cushing’s syndrome.

NEW ACCEPTED MANUSCRIPTS

DIGESTS

GENETICS AND GENOMICSMICROBIOLOGY AND INFECTIOUS DISEASE

Protecting potatoes

What are the compounds that certain bacteria produce to fight off microorganisms harmful to potato crops?

ECOLOGYEVOLUTIONARY BIOLOGY

What triggers torpor?

Hummingbirds save energy using torpor, a survival strategy similar to hibernation, to cope with the demands of the breeding season and increase fat stores before migration.

DEVELOPMENTAL BIOLOGYSTEM CELLS AND REGENERATIVE MEDICINE

Big, bigger or biggest, a nervy decision

In axolotls, the size of regenerating limbs depends on the number of nerves it contains, irrespective of the size of the animal.

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