Functional and structural characterization of an ECF-type ABC transporter for vitamin B12.

Abstract:

:Vitamin B12 (cobalamin) is the most complex B-type vitamin and is synthetized exclusively in a limited number of prokaryotes. Its biologically active variants contain rare organometallic bonds, which are used by enzymes in a variety of central metabolic pathways such as L-methionine synthesis and ribonucleotide reduction. Although its biosynthesis and role as co-factor are well understood, knowledge about uptake of cobalamin by prokaryotic auxotrophs is scarce. Here, we characterize a cobalamin-specific ECF-type ABC transporter from Lactobacillus delbrueckii, ECF-CbrT, and demonstrate that it mediates the specific, ATP-dependent uptake of cobalamin. We solved the crystal structure of ECF-CbrT in an apo conformation to 3.4 Å resolution. Comparison with the ECF transporter for folate (ECF-FolT2) from the same organism, reveals how the identical ECF module adjusts to interact with the different substrate binding proteins FolT2 and CbrT. ECF-CbrT is unrelated to the well-characterized B12 transporter BtuCDF, but their biochemical features indicate functional convergence.

journal_name

Elife

journal_title

eLife

authors

Santos JA,Rempel S,Mous ST,Pereira CT,Ter Beek J,de Gier JW,Guskov A,Slotboom DJ

doi

10.7554/eLife.35828

subject

Has Abstract

pub_date

2018-05-29 00:00:00

issn

2050-084X

pii

35828

journal_volume

7

pub_type

杂志文章

相关文献

eLife文献大全
  • Alpha/beta power decreases track the fidelity of stimulus-specific information.

    abstract::Massed synchronised neuronal firing is detrimental to information processing. When networks of task-irrelevant neurons fire in unison, they mask the signal generated by task-critical neurons. On a macroscopic level, such synchronisation can contribute to alpha/beta (8-30 Hz) oscillations. Reducing the amplitude of the...

    journal_title:eLife

    pub_type: 杂志文章

    doi:10.7554/eLife.49562

    authors: Griffiths BJ,Mayhew SD,Mullinger KJ,Jorge J,Charest I,Wimber M,Hanslmayr S

    更新日期:2019-11-29 00:00:00

  • Molecular insights into the origin of the Hox-TALE patterning system.

    abstract::Despite tremendous body form diversity in nature, bilaterian animals share common sets of developmental genes that display conserved expression patterns in the embryo. Among them are the Hox genes, which define different identities along the anterior-posterior axis. Hox proteins exert their function by interaction wit...

    journal_title:eLife

    pub_type: 杂志文章

    doi:10.7554/eLife.01939

    authors: Hudry B,Thomas-Chollier M,Volovik Y,Duffraisse M,Dard A,Frank D,Technau U,Merabet S

    更新日期:2014-03-18 00:00:00

  • Gap junction networks in mushroom bodies participate in visual learning and memory in Drosophila.

    abstract::Gap junctions are widely distributed in the brains across species and play essential roles in neural information processing. However, the role of gap junctions in insect cognition remains poorly understood. Using a flight simulator paradigm and genetic tools, we found that gap junctions are present in Drosophila Kenyo...

    journal_title:eLife

    pub_type: 杂志文章

    doi:10.7554/eLife.13238

    authors: Liu Q,Yang X,Tian J,Gao Z,Wang M,Li Y,Guo A

    更新日期:2016-05-24 00:00:00

  • Dynamic ubiquitination determines transcriptional activity of the plant immune coactivator NPR1.

    abstract::Activation of systemic acquired resistance in plants is associated with transcriptome reprogramming induced by the unstable coactivator NPR1. Immune-induced ubiquitination and proteasomal degradation of NPR1 are thought to facilitate continuous delivery of active NPR1 to target promoters, thereby maximising gene expre...

    journal_title:eLife

    pub_type: 杂志文章

    doi:10.7554/eLife.47005

    authors: Skelly MJ,Furniss JJ,Grey H,Wong KW,Spoel SH

    更新日期:2019-10-07 00:00:00

  • Multiple selection filters ensure accurate tail-anchored membrane protein targeting.

    abstract::Accurate protein localization is crucial to generate and maintain organization in all cells. Achieving accuracy is challenging, as the molecular signals that dictate a protein's cellular destination are often promiscuous. A salient example is the targeting of an essential class of tail-anchored (TA) proteins, whose so...

    journal_title:eLife

    pub_type: 杂志文章

    doi:10.7554/eLife.21301

    authors: Rao M,Okreglak V,Chio US,Cho H,Walter P,Shan SO

    更新日期:2016-12-07 00:00:00

  • Medial orbitofrontal inactivation does not affect economic choice.

    abstract::How are decisions made between different goods? One theory spanning several fields of neuroscience proposes that their values are distilled to a single common neural currency, the calculation of which allows for rational decisions. The orbitofrontal cortex (OFC) is thought to play a critical role in this process, base...

    journal_title:eLife

    pub_type: 杂志文章

    doi:10.7554/eLife.38963

    authors: Gardner MP,Conroy JC,Styer CV,Huynh T,Whitaker LR,Schoenbaum G

    更新日期:2018-10-03 00:00:00

  • Segmentation of the zebrafish axial skeleton relies on notochord sheath cells and not on the segmentation clock.

    abstract::Segmentation of the axial skeleton in amniotes depends on the segmentation clock, which patterns the paraxial mesoderm and the sclerotome. While the segmentation clock clearly operates in teleosts, the role of the sclerotome in establishing the axial skeleton is unclear. We severely disrupt zebrafish paraxial segmenta...

    journal_title:eLife

    pub_type: 杂志文章

    doi:10.7554/eLife.33843

    authors: Lleras Forero L,Narayanan R,Huitema LF,VanBergen M,Apschner A,Peterson-Maduro J,Logister I,Valentin G,Morelli LG,Oates AC,Schulte-Merker S

    更新日期:2018-04-06 00:00:00

  • GPIHBP1 expression in gliomas promotes utilization of lipoprotein-derived nutrients.

    abstract::GPIHBP1, a GPI-anchored protein of capillary endothelial cells, binds lipoprotein lipase (LPL) within the subendothelial spaces and shuttles it to the capillary lumen. GPIHBP1-bound LPL is essential for the margination of triglyceride-rich lipoproteins (TRLs) along capillaries, allowing the lipolytic processing of TRL...

    journal_title:eLife

    pub_type: 杂志文章

    doi:10.7554/eLife.47178

    authors: Hu X,Matsumoto K,Jung RS,Weston TA,Heizer PJ,He C,Sandoval NP,Allan CM,Tu Y,Vinters HV,Liau LM,Ellison RM,Morales JE,Baufeld LJ,Bayley NA,He L,Betsholtz C,Beigneux AP,Nathanson DA,Gerhardt H,Young SG,Fong LG,J

    更新日期:2019-06-06 00:00:00

  • Shearing in flow environment promotes evolution of social behavior in microbial populations.

    abstract::How producers of public goods persist in microbial communities is a major question in evolutionary biology. Cooperation is evolutionarily unstable, since cheating strains can reproduce quicker and take over. Spatial structure has been shown to be a robust mechanism for the evolution of cooperation. Here we study how s...

    journal_title:eLife

    pub_type: 杂志文章

    doi:10.7554/eLife.34862

    authors: Uppal G,Vural DC

    更新日期:2018-05-22 00:00:00

  • Quorum sensing control of Type VI secretion factors restricts the proliferation of quorum-sensing mutants.

    abstract::Burkholderia thailandensis uses acyl-homoserine lactone-mediated quorum sensing systems to regulate hundreds of genes. Here we show that cell-cell contact-dependent type VI secretion (T6S) toxin-immunity systems are among those activated by quorum sensing in B. thailandensis. We also demonstrate that T6S is required t...

    journal_title:eLife

    pub_type: 杂志文章

    doi:10.7554/eLife.14712

    authors: Majerczyk C,Schneider E,Greenberg EP

    更新日期:2016-05-16 00:00:00

  • The discovery and importance of genomic imprinting.

    abstract::The discovery of genomic imprinting by Davor Solter, Azim Surani and co-workers in the mid-1980s has provided a foundation for the study of epigenetic inheritance and the epigenetic control of gene activity and repression, especially during development. It also has shed light on a range of diseases, including both rar...

    journal_title:eLife

    pub_type: 杂志文章

    doi:10.7554/eLife.42368

    authors: Ferguson-Smith AC,Bourc'his D

    更新日期:2018-10-22 00:00:00

  • A bacterial Goldilocks mechanism.

    abstract::Bacillus subtilis can measure the activity of the enzymes that remodel the cell wall to ensure that the levels of activity are 'just right'. ...

    journal_title:eLife

    pub_type: 杂志文章

    doi:10.7554/eLife.54244

    authors: Kim IM,Szurmant H

    更新日期:2020-01-24 00:00:00

  • Perceptually relevant remapping of human somatotopy in 24 hours.

    abstract::Experience-dependent reorganisation of functional maps in the cerebral cortex is well described in the primary sensory cortices. However, there is relatively little evidence for such cortical reorganisation over the short-term. Using human somatosensory cortex as a model, we investigated the effects of a 24 hr gluing ...

    journal_title:eLife

    pub_type: 杂志文章

    doi:10.7554/eLife.17280

    authors: Kolasinski J,Makin TR,Logan JP,Jbabdi S,Clare S,Stagg CJ,Johansen-Berg H

    更新日期:2016-12-30 00:00:00

  • Inhibition of mTORC1 by ER stress impairs neonatal β-cell expansion and predisposes to diabetes in the Akita mouse.

    abstract::Unresolved ER stress followed by cell death is recognized as the main cause of a multitude of pathologies including neonatal diabetes. A systematic analysis of the mechanisms of β-cell loss and dysfunction in Akita mice, in which a mutation in the proinsulin gene causes a severe form of permanent neonatal diabetes, sh...

    journal_title:eLife

    pub_type: 杂志文章

    doi:10.7554/eLife.38472

    authors: Riahi Y,Israeli T,Yeroslaviz R,Chimenez S,Avrahami D,Stolovich-Rain M,Alter I,Sebag M,Polin N,Bernal-Mizrachi E,Dor Y,Cerasi E,Leibowitz G

    更新日期:2018-11-09 00:00:00

  • Rescue of cognitive function following fractionated brain irradiation in a novel preclinical glioma model.

    abstract::More than half of long-term brain tumor survivors develop irreversible cognitive decline that severely affect their quality of life. However, there is no pre-clinical model that allows long-term assessment of cognition, and there is no treatment which ameliorates cognitive deficits in patients. Here, we report a novel...

    journal_title:eLife

    pub_type: 杂志文章

    doi:10.7554/eLife.38865

    authors: Feng X,Liu S,Chen D,Rosi S,Gupta N

    更新日期:2018-11-13 00:00:00

  • Impaired skeletal muscle mitochondrial pyruvate uptake rewires glucose metabolism to drive whole-body leanness.

    abstract::Metabolic cycles are a fundamental element of cellular and organismal function. Among the most critical in higher organisms is the Cori Cycle, the systemic cycling between lactate and glucose. Here, skeletal muscle-specific Mitochondrial Pyruvate Carrier (MPC) deletion in mice diverted pyruvate into circulating lactat...

    journal_title:eLife

    pub_type: 杂志文章

    doi:10.7554/eLife.45873

    authors: Sharma A,Oonthonpan L,Sheldon RD,Rauckhorst AJ,Zhu Z,Tompkins SC,Cho K,Grzesik WJ,Gray LR,Scerbo DA,Pewa AD,Cushing EM,Dyle MC,Cox JE,Adams C,Davies BS,Shields RK,Norris AW,Patti G,Zingman LV,Taylor EB

    更新日期:2019-07-18 00:00:00

  • A 3D culture model of innervated human skeletal muscle enables studies of the adult neuromuscular junction.

    abstract::Two-dimensional (2D) human skeletal muscle fiber cultures are ill-equipped to support the contractile properties of maturing muscle fibers. This limits their application to the study of adult human neuromuscular junction (NMJ) development, a process requiring maturation of muscle fibers in the presence of motor neuron...

    journal_title:eLife

    pub_type: 杂志文章

    doi:10.7554/eLife.44530

    authors: Afshar Bakooshli M,Lippmann ES,Mulcahy B,Iyer N,Nguyen CT,Tung K,Stewart BA,van den Dorpel H,Fuehrmann T,Shoichet M,Bigot A,Pegoraro E,Ahn H,Ginsberg H,Zhen M,Ashton RS,Gilbert PM

    更新日期:2019-05-14 00:00:00

  • Some like it hot, but not too hot.

    abstract::A temperature-sensitive receptor prevents mosquitoes from being attracted to targets that are hotter than a potential host. ...

    journal_title:eLife

    pub_type: 评论,杂志文章

    doi:10.7554/eLife.12838

    authors: Greppi C,Budelli G,Garrity PA

    更新日期:2015-12-15 00:00:00

  • Registered report: Coding-independent regulation of the tumor suppressor PTEN by competing endogenous mRNAs.

    abstract::The Reproducibility Project: Cancer Biology seeks to address growing concerns about reproducibility in scientific research by conducting replications of selected experiments from a number of high-profile papers in the field of cancer biology. The papers, which were published between 2010 and 2012, were selected on the...

    journal_title:eLife

    pub_type: 杂志文章

    doi:10.7554/eLife.12470

    authors: Phelps M,Coss C,Wang H,Cook M,Reproducibility Project: Cancer Biology.,Reproducibility Project Cancer Biology.

    更新日期:2016-03-01 00:00:00

  • The connectome of the adult Drosophila mushroom body provides insights into function.

    abstract::Making inferences about the computations performed by neuronal circuits from synapse-level connectivity maps is an emerging opportunity in neuroscience. The mushroom body (MB) is well positioned for developing and testing such an approach due to its conserved neuronal architecture, recently completed dense connectome,...

    journal_title:eLife

    pub_type: 杂志文章

    doi:10.7554/eLife.62576

    authors: Li F,Lindsey JW,Marin EC,Otto N,Dreher M,Dempsey G,Stark I,Bates AS,Pleijzier MW,Schlegel P,Nern A,Takemura SY,Eckstein N,Yang T,Francis A,Braun A,Parekh R,Costa M,Scheffer LK,Aso Y,Jefferis GS,Abbott LF,Litwi

    更新日期:2020-12-14 00:00:00

  • CDK9-dependent RNA polymerase II pausing controls transcription initiation.

    abstract::Gene transcription can be activated by decreasing the duration of RNA polymerase II pausing in the promoter-proximal region, but how this is achieved remains unclear. Here we use a 'multi-omics' approach to demonstrate that the duration of polymerase pausing generally limits the productive frequency of transcription i...

    journal_title:eLife

    pub_type: 杂志文章

    doi:10.7554/eLife.29736

    authors: Gressel S,Schwalb B,Decker TM,Qin W,Leonhardt H,Eick D,Cramer P

    更新日期:2017-10-10 00:00:00

  • Metabolic profiling during malaria reveals the role of the aryl hydrocarbon receptor in regulating kidney injury.

    abstract::Systemic metabolic reprogramming induced by infection exerts profound, pathogen-specific effects on infection outcome. Here, we detail the host immune and metabolic response during sickness and recovery in a mouse model of malaria. We describe extensive alterations in metabolism during acute infection, and identify in...

    journal_title:eLife

    pub_type: 杂志文章

    doi:10.7554/eLife.60165

    authors: Lissner MM,Cumnock K,Davis NM,Vilches-Moure JG,Basak P,Navarrete DJ,Allen JA,Schneider D

    更新日期:2020-10-06 00:00:00

  • Biochemical reconstitution of branching microtubule nucleation.

    abstract::Microtubules are nucleated from specific locations at precise times in the cell cycle. However, the factors that constitute these microtubule nucleation pathways and their mode of action still need to be identified. Using purified Xenopus laevis proteins we biochemically reconstitute branching microtubule nucleation, ...

    journal_title:eLife

    pub_type: 杂志文章

    doi:10.7554/eLife.49797

    authors: Alfaro-Aco R,Thawani A,Petry S

    更新日期:2020-01-14 00:00:00

  • Intestinal epithelium-derived BMP controls stem cell self-renewal in Drosophila adult midgut.

    abstract::Stem cells are maintained in a specialized microenvironment called niche but the nature of stem cell niche remains poorly defined in many systems. Here we demonstrate that intestinal epithelium-derived BMP serves as a niche signal for intestinal stem cell (ISC) self-renewal in Drosophila adult midgut. We find that BMP...

    journal_title:eLife

    pub_type: 杂志文章

    doi:10.7554/eLife.01857

    authors: Tian A,Jiang J

    更新日期:2014-03-11 00:00:00

  • Variable opportunities for outcrossing result in hotspots of novel genetic variation in a pathogen metapopulation.

    abstract::Many pathogens possess the capacity for sex through outcrossing, despite being able to reproduce also asexually and/or via selfing. Given that sex is assumed to come at a cost, these mixed reproductive strategies typical of pathogens have remained puzzling. While the ecological and evolutionary benefits of outcrossing...

    journal_title:eLife

    pub_type: 杂志文章

    doi:10.7554/eLife.47091

    authors: Laine AL,Barrès B,Numminen E,Siren JP

    更新日期:2019-06-18 00:00:00

  • Pattern regulation in a regenerating jellyfish.

    abstract::Jellyfish, with their tetraradial symmetry, offer a novel paradigm for addressing patterning mechanisms during regeneration. Here we show that an interplay between mechanical forces, cell migration and proliferation allows jellyfish fragments to regain shape and functionality rapidly, notably by efficient restoration ...

    journal_title:eLife

    pub_type: 杂志文章

    doi:10.7554/eLife.54868

    authors: Sinigaglia C,Peron S,Eichelbrenner J,Chevalier S,Steger J,Barreau C,Houliston E,Leclère L

    更新日期:2020-09-07 00:00:00

  • SON and SRRM2 are essential for nuclear speckle formation.

    abstract::Nuclear speckles (NS) are among the most prominent biomolecular condensates. Despite their prevalence, research on the function of NS is virtually restricted to colocalization analyses, since an organizing core, without which NS cannot form, remains unidentified. The monoclonal antibody SC35, raised against a spliceos...

    journal_title:eLife

    pub_type: 杂志文章

    doi:10.7554/eLife.60579

    authors: Ilik İA,Malszycki M,Lübke AK,Schade C,Meierhofer D,Aktaş T

    更新日期:2020-10-23 00:00:00

  • Common concepts for bacterial collectives.

    abstract::The expansion of bacterial swarms and the spreading of biofilms can be described by a unified biophysical theory that involves both active and passive processes. ...

    journal_title:eLife

    pub_type: 杂志文章

    doi:10.7554/eLife.47019

    authors: Jeckel H,Matthey N,Drescher K

    更新日期:2019-04-30 00:00:00

  • Distinct cortical codes and temporal dynamics for conscious and unconscious percepts.

    abstract::The neural correlates of consciousness are typically sought by comparing the overall brain responses to perceived and unperceived stimuli. However, this comparison may be contaminated by non-specific attention, alerting, performance, and reporting confounds. Here, we pursue a novel approach, tracking the neuronal codi...

    journal_title:eLife

    pub_type: 杂志文章

    doi:10.7554/eLife.05652

    authors: Salti M,Monto S,Charles L,King JR,Parkkonen L,Dehaene S

    更新日期:2015-05-21 00:00:00

  • Mature oligodendrocytes bordering lesions limit demyelination and favor myelin repair via heparan sulfate production.

    abstract::Myelin destruction is followed by resident glia activation and mobilization of endogenous progenitors (OPC) which participate in myelin repair. Here we show that in response to demyelination, mature oligodendrocytes (OLG) bordering the lesion express Ndst1, a key enzyme for heparan sulfates (HS) synthesis. Ndst1+ OLG ...

    journal_title:eLife

    pub_type: 杂志文章

    doi:10.7554/eLife.51735

    authors: Macchi M,Magalon K,Zimmer C,Peeva E,El Waly B,Brousse B,Jaekel S,Grobe K,Kiefer F,Williams A,Cayre M,Durbec P

    更新日期:2020-06-09 00:00:00