Abstract:
:A variety of pathogenic bacteria infect host eukaryotic cells using protein toxins, which enter the cytosol and exert their cytotoxic effects. Anthrax lethal toxin, for example, utilizes the membrane-spanning translocase, protective antigen (PA) pore, to deliver the protein toxin lethal factor (LF) from the endosome into the cytosol of cells. Previous work has investigated the delivery of natural peptides and enzymatic domains appended to the C-terminus of the PA-binding domain of lethal factor (LFN) into the cytosol via PA pore. Here, we move beyond natural amino acids and systematically investigate the translocation of polypeptide cargo containing non-canonical amino acids and functionalities through PA pore. Our results indicate translocation is not perturbed with alterations to the peptide backbone or side-chain. Moreover, despite their structural complexity, we found that the small molecule drugs, doxorubicin and monomethyl auristatin F (MMAF) translocated efficiently through PA pore. However, we found cyclic peptides and the small molecule drug docetaxel abrogated translocation due to their large size and structural rigidity. For cargos that reached the cytosol, we demonstrated that each remained intact after translocation. These studies show PA is capable of translocating non-canonical cargo provided it is in a conformational state conducive for passage through the narrow pore.
journal_name
Sci Repjournal_title
Scientific reportsauthors
Rabideau AE,Liao X,Akçay G,Pentelute BLdoi
10.1038/srep11944subject
Has Abstractpub_date
2015-07-16 00:00:00pages
11944issn
2045-2322pii
srep11944journal_volume
5pub_type
杂志文章abstract::Mycobacterium spp. are renowned for being the causative agent of diseases like leprosy, Buruli ulcer and tuberculosis in human beings. With more and more mycobacterial genomes being sequenced, any knowledge generated from comparative genomic analysis would provide better insights into the biology, evolution, phylogeny...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/srep18227
更新日期:2015-12-15 00:00:00
abstract::Although N-acyl-L-homoserine lactone (AHL) based quorum sensing (QS) phenomenon has been observed in mature anaerobic granules, the biological role of AHL-based QS system in anaerobic granulation process remains unexplored. For the first time, a long-term anaerobic bioreactor was operated for 168 days to investigate t...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-018-34183-3
更新日期:2018-10-25 00:00:00
abstract::This study compares the effects of temperature (constant at 15, 20, 25, 30 and 35 °C) on adult longevity, oviposition, and nymph development of the brown planthopper, Nilaparvata lugens, on susceptible and resistant rice varieties. The resistant variety contained the BPH32 gene. In our experiments, nymphs failed to de...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-020-80704-4
更新日期:2021-01-08 00:00:00
abstract::Extracellular vesicles (EVs) carry information between cells in the form of biomolecules. Such molecules have been found to serve as biomarkers. Glycans attached to surface molecules on EVs are involved in their cellular uptake. In this study, we examined glycan profiles of small EVs which are generally termed exosome...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-019-47760-x
更新日期:2019-08-08 00:00:00
abstract::Stimuli presented at short temporal delays before functional magnetic resonance imaging (fMRI) can have a robust impact on the organization of synchronous activity in resting state networks. This presents an opportunity to investigate how sensory, affective and cognitive stimuli alter functional connectivity in rodent...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-020-76935-0
更新日期:2020-11-16 00:00:00
abstract::Glaucoma is a leading cause of irreversible vision loss predicted to affect more than 100 million people by 2040. Intraocular pressure (IOP) reduction prevents development of glaucoma and vision loss from glaucoma. Glaucoma surgeries reduce IOP by facilitating aqueous humor outflow through a vent fashioned from the wa...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-020-69687-4
更新日期:2020-07-31 00:00:00
abstract::Developed through evolution, brain neural system self-organizes into an economical and dynamic network structure with the modulation of repetitive neuronal firing activities through synaptic plasticity. These highly variable electric activities inevitably produce a spontaneous magnetic field, which also significantly ...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-019-46104-z
更新日期:2019-07-04 00:00:00
abstract::To explore the feasibility of 3D-printed navigation template in proximal femoral varus rotation and shortening osteotomy for older children with developmental dysplasia of the hip (DDH). Between June 2014 and May 2015, navigation templates were designed and used for 12 DDH patients. Surgical information and outcomes w...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/srep44993
更新日期:2017-03-21 00:00:00
abstract::The cause and source of the heat released from Earth's interior have not yet been determined. Some research groups have proposed that the heat is supplied by radioactive decay or by a nuclear georeactor. Here we postulate that the generation of heat is the result of three-body nuclear fusion of deuterons confined in h...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/srep37740
更新日期:2016-11-23 00:00:00
abstract::The taxa of Astragalus section Hymenostegis are an important element of mountainous and steppe habitats in Southwest Asia. A phylogenetic hypothesis of sect. Hymenostegis has been obtained from nuclear ribosomal DNA internal transcribed spacer (ITS) and plastid ycf1 sequences of up to 303 individuals from 106 species,...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-017-14614-3
更新日期:2017-10-25 00:00:00
abstract::Photonic crystal materials are based on a periodic modulation of the dielectric constant on length scales comparable to the wavelength of light. These materials can exhibit photonic band gaps; frequency regions for which the propagation of electromagnetic radiation is forbidden due to the depletion of the density of s...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/srep21818
更新日期:2016-02-25 00:00:00
abstract::More than a hundred different Transthyretin (TTR) mutations are associated with fatal systemic amyloidoses. They destabilize the protein tetrameric structure and promote the extracellular deposition of TTR as pathological amyloid fibrils. So far, only mutations R104H and T119M have been shown to stabilize significantl...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/srep44709
更新日期:2017-03-24 00:00:00
abstract::Unmanned Aerial Systems (UAS) are increasingly being used recreationally, commercially and for wildlife research, but very few studies have quantified terrestrial mammalian reactions to UAS approaches. We used two Vertical Take-off and Landing (VTOL) UAS to approach seven herbivore species in the Moremi Game Reserve, ...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-019-38610-x
更新日期:2019-02-14 00:00:00
abstract::An amendment to this paper has been published and can be accessed via a link at the top of the paper. ...
journal_title:Scientific reports
pub_type: 已发布勘误
doi:10.1038/s41598-020-73944-x
更新日期:2020-10-09 00:00:00
abstract::The advent of flexible optoelectronic devices has accelerated the development of semiconducting polymeric materials. We seek to replace conventional expensive semiconducting photodetector materials with our cost-effective composite system. We demonstrate in this work the successful fabrication of a photoconductive com...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/srep16761
更新日期:2015-11-16 00:00:00
abstract::Staphylococcus lugdunensis is a commensal bacterium in humans and other animals that can cause serious infections. The aim of this research was to estimate the frequency of S. lugdunensis in pet cats and to characterize the S. lugdunensis isolates obtained. The prevalence of S. lugdunensis was 0.77% (4/523) in healthy...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-020-72395-8
更新日期:2020-09-22 00:00:00
abstract::Macrophages are immune cells responsible for tissue debridement and fighting infection. Clofazimine, an FDA-approved antibiotic, accumulates and precipitates as rod-shaped, crystal-like drug inclusions within macrophage lysosomes. Drug treatment as well as pathophysiological states could induce changes in macrophage m...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-019-42180-3
更新日期:2019-04-05 00:00:00
abstract::Root-knot nematodes (RKNs) are obligate biotrophic parasites that invade plant roots and engage in prolonged and intimate relationships with their hosts. Nematode secretions, some of which have immunosuppressing activity, play essential roles in successful parasitism; however, their mechanisms of action remain largely...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/srep19443
更新日期:2016-01-22 00:00:00
abstract::Proton-sensing ovarian cancer G-protein coupled receptor (OGR1) plays an important role in pH homeostasis. Acidosis occurs at sites of intestinal inflammation and can induce endoplasmic reticulum (ER) stress and the unfolded protein response (UPR), an evolutionary mechanism that enables cells to cope with stressful co...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-020-57657-9
更新日期:2020-01-29 00:00:00
abstract::The intensification of marine aquaculture raises multiple sustainability issues, namely the handling of nutrient-rich effluents that can adversely impact ecosystems. As integrated multi-trophic aquaculture (IMTA) gains momentum, the use of halophyte plants to phytoremediate aquaculture effluents has received growing a...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-020-66093-8
更新日期:2020-06-22 00:00:00
abstract::The secretome complexity and lignocellulose degrading capacity of Pleurotus ostreatus monokaryons mkPC9 and mkPC15 and mated dikaryon dkN001 were studied in submerged liquid cultures containing wood, glucose, and wood plus glucose as carbon sources. The study revealed that this white-rot basidiomycete attacks all the ...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-020-68969-1
更新日期:2020-07-24 00:00:00
abstract::Semen fertilizing potential is dependent upon the morphological, functional and molecular attributes of sperm. Sperm microRNAs (miRNAs) were recently shown to hold promise regarding their association with different fertility phenotypes. However, their role in fertility regulation remains to be determined. We postulate...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-019-46775-8
更新日期:2019-07-17 00:00:00
abstract::Mechanochemical synthesis of Si/Cu3Si-based composite as negative electrode materials for lithium ion battery is investigated. Results indicate that CuO is decomposed and alloyed with Si forming amorphous Cu-Si solid solution due to high energy impacting during high energy mechanical milling (HEMM). Upon carbonization...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-018-30703-3
更新日期:2018-08-23 00:00:00
abstract::This work presents the first comprehensive investigation of phonon-electron interactions in bulk acoustic standing wave (BAW) resonators made from piezoelectric semiconductor (PS) materials. We show that these interactions constitute a significant energy loss mechanism and can set practical loss limits lower than anha...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/srep05617
更新日期:2014-07-08 00:00:00
abstract::The plant hormone abscisic acid (ABA) and the jasmonic acid related-compound 12-oxo-phytodienoic acid (OPDA) play crucial roles in seed development, dormancy, and germination. However, a lack of suitable techniques for visualising plant hormones has restricted the investigation of their biological mechanisms. In the p...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/srep42977
更新日期:2017-02-17 00:00:00
abstract::Fibrillar collagen COL6α3 in adipose tissue has been associated with obesity, inflammation, insulin resistance and cancer. We here aimed to identify novel transcriptional regulators of COL6A3 expression. Based on a transcriptome dataset of adipose tissue, we identified strong correlations for 56 genes with COL6A3 mRNA...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-020-77406-2
更新日期:2020-11-19 00:00:00
abstract::We present theoretical results on the high-temperature phase stability and phonon spectra of paramagnetic bcc iron which explicitly take into account many-body effects. Several peculiarities, including a pronounced softening of the [110] transverse (T1) mode and a dynamical instability of the bcc lattice in harmonic a...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/srep05585
更新日期:2014-07-07 00:00:00
abstract::Tissue ischemia results in an accumulation of lactate and local or systemic lactic acidosis. In nociceptive sensory neurons, lactate was reported to sensitize or activate the transient receptor potential ion channel TRPA1 and acid-sensing ion channels (ASICs). However, it is unclear how lactate modulates the TRPV1 reg...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/srep36740
更新日期:2016-11-09 00:00:00
abstract::Terrestrial microbial ecosystems are exposed to many types of disturbances varying in their spatial and temporal characteristics. The ability to cope with these disturbances is crucial for maintaining microbial ecosystem functions, especially if disturbances recur regularly. Thus, understanding microbial ecosystem dyn...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-018-27785-4
更新日期:2018-06-22 00:00:00
abstract::Different grazing strategies impact grassland plant production and may also regulate the soil carbon formation. For a site in semiarid temperate steppe, we studied the effect of combinations of rest, high and moderate grazing pressure over three stages of the growing season, on the process involved in soil carbon sequ...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/srep10892
更新日期:2015-07-03 00:00:00