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I5502

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Shuibin Lin et al.
Molecular cell, 71(2), 244-255 (2018-07-10)
tRNAs are subject to numerous modifications, including methylation. Mutations in the human N7-methylguanosine (m7G) methyltransferase complex METTL1/WDR4 cause primordial dwarfism and brain malformation, yet the molecular and cellular function in mammals is not well understood. We developed m7G methylated tRNA immunoprecipitation
Pavla Gajdušková et al.
Nature structural & molecular biology, 27(5), 500-510 (2020-05-06)
Replication-dependent histones (RDH) are required for packaging of newly synthetized DNA into nucleosomes during the S phase when their expression is highly upregulated. However, the mechanisms of this upregulation in metazoan cells remain poorly understood. Using iCLIP and ChIP-seq, we
Kyungeun Lim et al.
FEBS letters, 589(20 Pt B), 3037-3043 (2015-09-01)
FAAP20 (Fanconi anemia-associated protein 20) is a subunit of the Fanconi anemia (FA) core complex that repairs interstrand cross-links. To understand the molecular basis for the FA core complex-mediated recruitment of Rev1 to the DNA lesion, we characterized the interactions
Myung-Chul Chung et al.
The Biochemical journal, 470(2), 243-253 (2015-07-19)
In addition to membrane disruption, the cathelicidin antimicrobial peptide (AMP) LL-37 translocates through the bacterial inner membrane to target intracellular molecules. The present study aims to identify an alternate mechanism and a cytoplasmic target of LL-37 in Francisella. LL-37 binding
Predrag Jovanovic et al.
Enzyme and microbial technology, 60, 16-23 (2014-05-20)
Chemoselective reduction of activated carbon-carbon double bond in conjugated nitroalkenes was achieved using Escherichia coli BL21(DE3) whole cells. Nine different substrates have been used furnishing the reduced products in moderate to good yields. 1-Nitro-4-phenyl-1,3-butadiene and (2-nitro-1-propenyl)benzene were successfully biotransformed with
James R Kornacki et al.
ACS chemical biology, 10(1), 157-164 (2014-09-10)
Epigenetic regulation is directed, in part, by the correlated placement of histone post-translational modifications, but the mechanisms controlling correlated modifications are incompletely understood. Correlations arise from crosstalk among modifications and are frequently attributed to protein-protein interactions that recruit enzymes to
Daiana Duca et al.
Applied and environmental microbiology, 80(15), 4640-4649 (2014-05-20)
Indole-3-acetic acid (IAA) is a fundamental phytohormone with the ability to control many aspects of plant growth and development. Pseudomonas sp. strain UW4 is a rhizospheric plant growth-promoting bacterium that produces and secretes IAA. While several putative IAA biosynthetic genes
Xili Liu et al.
eLife, 4 (2015-01-16)
Cell fate decisions are critical for life, yet little is known about how their reliability is achieved when signals are noisy and fluctuating with time. In this study, we show that in budding yeast, the decision of cell cycle commitment
Zhimin Feng et al.
Infection and immunity, 82(11), 4458-4465 (2014-08-13)
Currently, Acinetobacter baumannii is recognized as one of the major pathogens seriously threatening our health care delivery system. Aspects of the innate immune response to A. baumannii infection are not yet well understood. Human β-defensins (hBDs) are epithelial cell-derived cationic
Christin Münzberg et al.
Journal of cellular and molecular medicine, 19(5), 948-959 (2015-03-11)
Hypersecretion is the major symptom of functional neuroendocrine tumours. The mechanisms that contribute to this excessive secretion of hormones are still elusive. A key event in secretion is the exit of secretory products from the Golgi apparatus. ADP-ribosylation factor (Arf)
Cristina Basilico et al.
The Journal of clinical investigation, 124(7), 3172-3186 (2014-05-29)
Activation of MET by HGF plays a key role in tumor progression. Using a recently developed llama platform that generates human-like immunoglobulins, we selected 68 different antibodies that compete with HGF for binding to MET. HGF-competing antibodies recognized 4 distinct
Gal Yerushalmi et al.
Journal of bacteriology, 196(15), 2798-2806 (2014-05-20)
Enteropathogenic Escherichia coli (EPEC) is a major cause of food poisoning, leading to significant morbidity and mortality. EPEC virulence is dependent on a type III secretion system (T3SS), a molecular syringe employed by EPEC to inject effector proteins into host
Faiza Gul Durrani et al.
Applied microbiology and biotechnology, 99(16), 6791-6801 (2015-07-01)
This study shows expression of recombinant ovine growth hormone (roGH) and targeting to the inner membrane using signal sequence, DsbA, in Escherichia coli (E. coli) cell. Factors such as temperature, IPTG induction, and expression conditions were studied and show diverse
Xuexia Wen et al.
BMC microbiology, 15, 168-168 (2015-08-21)
The NS1 protein of avian influenza virus (AIV) is an important virulent factor of AIV. It has been shown to counteract host type I interferon response, to mediate host cell apoptosis, and to regulate the process of protein synthesis. The
Jessica R Ingram et al.
Proceedings of the National Academy of Sciences of the United States of America, 112(36), E4975-E4984 (2015-08-26)
Calcium-dependent protein kinases (CDPKs) comprise the major group of Ca2+-regulated kinases in plants and protists. It has long been assumed that CDPKs are activated, like other Ca2+-regulated kinases, by derepression of the kinase domain (KD). However, we found that removal
James N Vranish et al.
Journal of the American Chemical Society, 137(1), 390-398 (2014-12-06)
Iron-sulfur (Fe-S) clusters are protein cofactors that are constructed and delivered to target proteins by elaborate biosynthetic machinery. Mechanistic insights into these processes have been limited by the lack of sensitive probes for tracking Fe-S cluster synthesis and transfer reactions.
Satoshi Hara et al.
Biochemical and biophysical research communications, 456(1), 339-343 (2014-12-02)
The redox states of proteins in cells are key factors in many cellular processes. To determine the redox status of cysteinyl thiol groups in proteins in vivo, we developed a new maleimide reagent, a photocleavable maleimide-conjugated single stranded DNA (DNA-PCMal).
Deepesh Nagarajan et al.
BMC biochemistry, 16, 18-18 (2015-08-13)
Computational protein design is a rapidly maturing field within structural biology, with the goal of designing proteins with custom structures and functions. Such proteins could find widespread medical and industrial applications. Here, we have adapted algorithms from the Rosetta software
Teresa Miletti et al.
Protein science : a publication of the Protein Society, 24(7), 1114-1128 (2015-05-15)
Biotechnological applications of enzymes can involve the use of these molecules under nonphysiological conditions. Thus, it is of interest to understand how environmental variables affect protein structure and dynamics and how this ultimately modulates enzyme function. NADH oxidase (NOX) from
Luthur Siu-Lun Cheung et al.
Scientific reports, 5, 8247-8247 (2015-02-05)
Monobodies are antibody alternatives derived from fibronectin that are thermodynamically stable, small in size, and can be produced in bacterial systems. Monobodies have been engineered to bind a wide variety of target proteins with high affinity and specificity. Using alanine-scanning
Zherong You et al.
Human vaccines & immunotherapeutics, 10(8), 2321-2327 (2014-11-27)
Botulism in human is a devastating intoxication caused mainly by type A, B, and E botulinum neurotoxins (BoNTs). The most effective treatment of botulism is injection of BoNT antiserum in the first 24 h. In this study, a recombinant C-terminal
Razika Hussein et al.
Biochimica et biophysica acta, 1849(8), 940-954 (2015-05-20)
Rho factor dependent transcription termination (RTT) is common within the coding sequences of bacterial genes and it acts to couple transcription and translation levels. Despite the importance of RTT for gene regulation, its effects on mRNA and protein concentrations have
Xiao-Li Wang et al.
Protein expression and purification, 113, 30-34 (2015-05-13)
A highly efficient Escherichia coli expression system was established to obtain an appreciable quantity of antihypertensive peptide. The DNA-coding sequence for the Gly-Val-Tyr-Pro-His-Lys peptide was chemically synthesized and linked to form a ten-copy in tandem. It was cloned into the
Xinyue Liu et al.
Proceedings of the National Academy of Sciences of the United States of America, 114(9), 2200-2205 (2017-02-17)
Living systems, such as bacteria, yeasts, and mammalian cells, can be genetically programmed with synthetic circuits that execute sensing, computing, memory, and response functions. Integrating these functional living components into materials and devices will provide powerful tools for scientific research
Forest H Andrews et al.
Biochemistry, 53(27), 4358-4367 (2014-06-24)
The X-ray structure of benzoylformate decarboxylase (BFDC) from Pseudomonas putida ATCC 12633 shows it to be a tetramer. This was believed to be typical of all thiamin diphosphate-dependent decarboxylases until recently when the structure of KdcA, a branched-chain 2-keto acid
Kivin Jacobsen et al.
Oncogene, 21(19), 3058-3067 (2002-06-26)
The Ras oncogene transforms cultured murine fibroblasts into malignant, focus-forming cells, whose lack of contact inhibition is evidenced by high saturation densities. In order to investigate the reversibility of Ras transformation, as well as the kinetics of Ras-induced changes, cell
Zhan Qi Wang et al.
BMC plant biology, 15, 123-123 (2015-05-21)
Mercury (Hg) is not only a threat to public health but also a growth risk factor to plants, as it is readily accumulated by higher plants. Accumulation of Hg in plants disrupts many cellular-level functions and inhibits growth and development;
Fang Yu et al.
EMBO reports, 16(7), 813-823 (2015-06-14)
Ups1 forms a complex with Mdm35 and is critical for the transport of phosphatidic acid (PA) from the mitochondrial outer membrane to the inner membrane. We report the crystal structure of the Ups1-Mdm35-PA complex and the functional characterization of Ups1-Mdm35
Yanira Méndez et al.
ChemMedChem, 9(10), 2351-2359 (2014-07-06)
The development of selective inhibitors of microbial metallo-aminopeptidases is an important goal in the pursuit of antimicrobials for therapeutic applications. Herein, we disclose a combinatorial approach relying on two Ugi reactions for the generation of peptidomimetics inspired by natural metallo-aminopeptidase
Arjun K Mishra et al.
Biochemical and biophysical research communications, 456(2), 637-642 (2014-12-17)
Polyamine biosynthesis pathway has long been considered an essential drug target for trypanosomatids including Leishmania. S-adenosylmethionine decarboxylase (AdoMetDc) and spermidine synthase (SpdSyn) are enzymes of this pathway that catalyze successive steps, with the product of the former, decarboxylated S-adenosylmethionine (dcSAM)
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