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Biomolecular NMR Assignments

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https://read.qxmd.com/read/30758717/-1-h-13-c-and-15-n-resonance-assignments-of-the-cytokine-interleukin-36%C3%AE-isoform-2
#1
Amit Kumar, Amelie Wißbrock, Peter Bellstedt, Andras Lang, Ramadurai Ramachandran, Christoph Wiedemann, Diana Imhof, Oliver Ohlenschläger
Interleukins are cytokines performing central tasks in the human immune system. Interleukin-36β (IL-36β) is a member of the interleukin-1 superfamily as are its homologues IL-36α and IL-36γ. All of them interact with a common receptor composed of IL-36R and IL-1R/acP. IL-36 cytokines can activate IL-36R to proliferation of CD4 + lymphocytes or stimulate M2 macrophages as potently as IL-1β. Within our efforts to study the structure-function relationship of the three interleukins IL-36α, IL-36β and IL-36γ by heteronuclear multidimensional NMR, we here report the 1 H, 13 C, and 15 N resonance assignments for the backbone and side chain nuclei of cytokine interleukin-36β isoform-2...
February 13, 2019: Biomolecular NMR Assignments
https://read.qxmd.com/read/30734154/backbone-1-h-13-c-and-15-n-resonance-assignments-of-boman26a-a-%C3%AE-mannanase-of-the-glycoside-hydrolase-family-26-from-the-human-gut-bacterium-bacteroides-ovatus
#2
Sven Wernersson, Viktoria Bågenholm, Cecilia Persson, Santosh Kumar Upadhyay, Henrik Stålbrand, Mikael Akke
Bacteroides ovatus is a member of the human gut microbiota. The importance of this microbial consortium involves the degradation of complex dietary glycans mainly conferred by glycoside hydrolases. In this study we focus on one such catabolic glycoside hydrolase from B. ovatus. The enzyme, termed BoMan26A, is a β-mannanase that takes part in the hydrolytic degradation of galactomannans. The crystal structure of BoMan26A has previously been determined to reveal a TIM-barrel like fold, but the relation between the protein structure and the mode of substrate processing has not yet been studied...
February 7, 2019: Biomolecular NMR Assignments
https://read.qxmd.com/read/30729401/backbone-resonance-assignments-of-innate-immune-evasion-protein-eaph2-from-the-s-aureus
#3
Alvaro I Herrera, Abhinav Dubey, Brian V Geisbrecht, Haribabu Arthanari, Om Prakash
Staphylococcus aureus is a ubiquitous and persistent pathogen of humans and livestock. The bacterium disrupts the host's innate immune system's ability to recognize and clear bacteria with optimal efficiency by expressing a wide variety of virulence proteins. Two single domain protein homologs (EapH1, EapH2) of the extracellular adherence protein (Eap) have been reported. Eap is a multidomain protein that participates in various protein-protein interactions that inhibit the innate immune response, including both the complement and Neutrophil Serine Proteases (NSPs)...
February 7, 2019: Biomolecular NMR Assignments
https://read.qxmd.com/read/30707421/-15-n-13-c-and-1-h-resonance-assignments-of-fkbp12-proteins-from-the-pathogenic-fungi-mucor-circinelloides-and-aspergillus-fumigatus
#4
Sophie M C Gobeil, Benjamin G Bobay, Leonard D Spicer, Ronald A Venters
Invasive fungal infections are a leading cause of death in immunocompromised patients and remain difficult to treat since fungal pathogens, like mammals, are eukaryotes and share many orthologous proteins. As a result, current antifungal drugs have limited clinical value, are sometimes toxic, can adversely affect human reaction pathways and are increasingly ineffective due to emerging resistance. One potential antifungal drug, FK506, establishes a ternary complex between the phosphatase, calcineurin, and the 12-kDa peptidyl-prolyl isomerase FK506-binding protein, FKBP12...
February 1, 2019: Biomolecular NMR Assignments
https://read.qxmd.com/read/30706384/chemical-shift-assignments-of-retinal-guanylyl-cyclase-activating-protein-5-gcap5
#5
Diana Cudia, James B Ames
Retinal membrane guanylyl cyclase (RetGC) in photoreceptor rod and cone cells is regulated by a family of guanylyl cyclase activating proteins (GCAP1-7). GCAP5 is expressed in zebrafish photoreceptors and promotes Ca2+ -dependent regulation of RetGC enzymatic activity that regulates visual phototransduction. We report NMR chemical shift assignments of the Ca2+ -free activator form of GCAP5 (BMRB No. 27705).
January 31, 2019: Biomolecular NMR Assignments
https://read.qxmd.com/read/30694439/-1-h-15-n-and-13-c-backbone-assignment-of-apo-tdp-43-rna-recognition-motifs
#6
David D Scott, Liberty Francois-Moutal, Vlad K Kumirov, May Khanna
TAR DNA-binding protein 43 (TDP-43) is a ubiquitously expressed nuclear protein that influences diverse cellular processes by regulating alternative splicing of RNA and microRNA biogenesis. It is also a pathological protein found in sporadic ALS and in the most common subtype of frontotemporal lobar degeneration with ubiquitinated inclusions (FLTD-U). TDP-43 has two tandem RNA-binding domains, RRM1 and RRM2. The NMR structure of TDP-43 was solved in the presence of UG-rich RNA sequences bound to the RRM1 and RRM2 domains...
January 29, 2019: Biomolecular NMR Assignments
https://read.qxmd.com/read/30684235/-1-h-13-c-and-15-n-resonance-assignments-of-the-second-peptidyl-prolyl-isomerase-domain-of-chaperone-sura-from-escherichia-coli
#7
Moye Jia, Yunfei Hu, Changwen Jin
The periplasmic chaperone SurA in Gram-negative bacteria plays a central role in the biogenesis of integral outer membrane proteins and is critical to the maintenance of bacterial membrane integrity. SurA contains a core chaperone module comprising the N- and C-terminal domains, along with two peptidyl-prolyl isomerase (PPIase) domains. The chaperone activity of SurA has been demonstrated to rely on the core module, whereas recent works suggested that the PPIase domains may regulate the chaperone activity through large conformational rearrangements...
January 25, 2019: Biomolecular NMR Assignments
https://read.qxmd.com/read/30684234/complete-nmr-chemical-shift-assignments-of-odorant-binding-protein-22-from-the-yellow-fever-mosquito-aedes-aegypti-bound-to-arachidonic-acid
#8
David N M Jones, Jing Wang, Emma J Murphy
Aedes aegypti mosquitoes are the vector for transmission of Dengue, Zika and chikungunya viruses. These mosquitos feed exclusively on human hosts for a blood meal. Previous studies have established that Dengue virus infection of the mosquito results in increased expression of the odorant binding proteins 22 and 10 within the mosquito salivary gland and silencing of these genes dramatically reduces blood-feeding behaviors. Odorant binding proteins are implicated in modulating the chemosensory perception of external stimuli that regulate behaviors such as host location, feeding and reproduction...
January 25, 2019: Biomolecular NMR Assignments
https://read.qxmd.com/read/30680534/nmr-chemical-shift-assignment-of-the-c-terminal-region-of-the-menangle-virus-phosphoprotein
#9
N Herr, M N Webby, E M M Bulloch, M Schmitz, R L Kingston
Menangle virus is a bat-borne paramyxovirus with zoonotic potential. The single-stranded RNA genome of the virus is encapsidated in a helical nucleocapsid which is the template for both transcription and genome replication. Each of these operations is performed by the viral RNA polymerase. The phosphoprotein is the non-catalytic subunit of the polymerase, and its C-terminal region enables the polymerase to engage with the nucleocapsid. Here, we report the 1 H, 15 N, and 13 C chemical shift assignments of the C-terminal region (amino acids 267-388) of the Menangle virus phosphoprotein...
January 24, 2019: Biomolecular NMR Assignments
https://read.qxmd.com/read/30673936/chemical-shift-assignments-of-the-catalytic-and-atp-binding-domain-of-hk853-from-thermotoga-maritime
#10
Yuan Zhou, Xinghong Liu, Conggang Li, Maili Liu, Ling Jiang, Yixiang Liu
HK853 is a transmembrane protein from Thermotoga maritime, which belongs to HK853/RR468 two-component signal transduction system (TCS) and acts as a sensor histidine kinase. HK853 is mainly composed of a transmembrane domain, dimerization and histidine-containing phosphotransfer domain (HK853DHp ), catalytic and ATP-binding domain (HK853CA ) and several linkers. HK853 can be completely autophosphorylated, which is the first step for signal transduction of TCS. HK853CA is an essential domain for its kinase function, since HK853CA could bind with ATP and convert it to ADP...
January 23, 2019: Biomolecular NMR Assignments
https://read.qxmd.com/read/30666492/resonance-assignments-for-the-tandem-pwwp-arid-domains-of-human-rbbp1
#11
Weibin Gong, Xingzhe Yao, Qihui Liang, Yufeng Tong, Sarah Perrett, Yingang Feng
Retinoblastoma-binding protein 1 (RBBP1), also known as AT-rich interaction domain 4A (ARID4A), is a tumour suppressor involved in the regulation of the epigenetic programming in leukemia and Prader-Willi/Angelman syndromes. The ARID domain of RBBP1 binds to DNA non-specifically and has gene suppression activity. However, no structural data has been obtained for the human RBBP1 ARID domain so far. Here we report the near-complete 1 H, 13 C, 15 N backbone and side-chain NMR assignment of a 27 kDa tandem PWWP-ARID domain construct that spans residues 171-414 with the removal of a short disordered region between the two domains...
January 21, 2019: Biomolecular NMR Assignments
https://read.qxmd.com/read/30632004/resonance-assignment-of-human-larp4a-la-module
#12
Isabel Cruz-Gallardo, Luigi Martino, Roberta Trotta, Stefano De Tito, Geoff Kelly, R Andrew Atkinson, Antonio Randazzo, Maria R Conte
Human LARP4A belongs to a superfamily of RNA binding proteins called La-related proteins (LARPs). Whilst being a positive regulator of protein synthesis and a promoter of mRNA stability, LARP4A also controls cell morphology and motility in human breast and prostate cancer cells. All LARPs share a characteristic RNA binding unit named the La-module, which despite a high level of primary structure conservation exhibits a great versatility in RNA target selection. Human LARP4A La-module is the most divergent compared with other LARPs and its RNA recognition properties have only recently started to be revealed...
January 10, 2019: Biomolecular NMR Assignments
https://read.qxmd.com/read/30617945/-1-h-13-c-15-n-resonance-assignment-of-the-c-terminal-domain-of-the-bifunctional-enzyme-trai-of-plasmid-r1
#13
Bhattiprolu Krishna, Nina Gubensäk, Gabriel E Wagner, Ellen Zechner, Sandra Raffl, Walter Becker, Evelyne Schrank, Klaus Zangger
Transfer of genetic material is the main mechanism underlying the spread of antibiotic resistance and virulence factors within the bacterial community. Conjugation is one such process by which the genetic material is shared from one bacterium to another. The DNA substrate is processed and prepared for transfer by a multi-protein complex called the relaxosome .The relaxosome of plasmid R1 possesses the most crucial enzyme TraI which, both nicks and unwinds the dsDNA substrate. TraI comprises 1765 residues and multiple functional domains, including those catalyzing the DNA trans-esterase (relaxase) on the dsDNA designated for a conjugative transfer and DNA helicase activities...
January 7, 2019: Biomolecular NMR Assignments
https://read.qxmd.com/read/30603955/nmr-resonance-assignments-and-secondary-structure-of-a-mutant-form-of-the-human-kcne1-channel-accessory-protein-that-exhibits-kcne3-like-function
#14
Cheryl L Law, Charles R Sanders
KCNQ1 (Q1) is a voltage-gated potassium channel that is modulated by members of the KCNE family, the best-characterized being KCNE1 (E1) and KCNE3 (E3). The Q1/E1 complex generates a channel with delayed activation and increased conductance. This complex is expressed in cardiomyocytes where it provides the IKs current that is critical for the repolarization phase of the cardiac action potential. The Q1/E3 complex, on the other hand, is expressed in epithelial cells of the colon and stomach, where it serves as a constitutively active leak channel to help maintain water and ion homeostasis...
January 2, 2019: Biomolecular NMR Assignments
https://read.qxmd.com/read/30569274/nmr-resonance-assignments-of-the-nzf-domain-of-mouse-hoil-1l-free-and-bound-to-linear-di-ubiquitin
#15
Naoki Ishii, Erik Walinda, Naoto Iwakawa, Daichi Morimoto, Kazuhiro Iwai, Kenji Sugase, Masahiro Shirakawa
Nuclear factor-κB (NF-κB) activation plays a central role in immunity and inflammation. In the canonical NF-κB activation pathway, linear polyubiquitin chains conjugated by the linear ubiquitin chain assembly complex (LUBAC) are specifically recognized by the Npl4 zinc finger (NZF) domain of heme-oxidized IRP2 ligase-1L (HOIL-1L). Recently, a crystal structure of the NZF domain in complex with linear di-ubiquitin has been reported; however, to understand the recognition mechanism in more detail, it is also necessary to investigate the structure and dynamics of the NZF domain in solution...
December 19, 2018: Biomolecular NMR Assignments
https://read.qxmd.com/read/30552637/-1-h-13-c-and-15-n-backbone-resonance-assignments-for-kpc-2-a-class-a-serine-%C3%AE-lactamase
#16
Jamie VanPelt, Ben A Shurina, Theresa A Ramelot, Robert A Bonomo, Richard C Page
The ever-increasing occurrence of antibiotic resistance presents a major threat to public health. Specifically, resistance conferred by β-lactamases places the efficacy of currently available antibiotics at risk. Klebsiella pneumoniae carbapenemase-2 (KPC-2) is a β-lactamase that enables carbapenem resistance and represents a clear and present danger to global public health. In order to combat bacterial infections harboring KPC-2 expression, inhibitors with improved potency need to be developed. Although the structure of KPC-2 has been solved by X-ray crystallography, NMR provides the unique opportunity to study the structure and dynamics of flexible loop regions in solution...
December 14, 2018: Biomolecular NMR Assignments
https://read.qxmd.com/read/30542820/nmr-resonance-assignments-of-the-pathogenesis-related-peach-allergen-pru-p-1-0101
#17
Sebastian Führer, Simone Trimmel, Kathrin Breuker, Martin Tollinger
In Europe, Northern America, and China a large number of individuals are suffering from peach (Prunus persica) allergy caused by the protein Pru p 1. Immunologic reactions against this 17.5 kDa protein result from initial sensitization to the birch (Betula verrucosa) pollen allergen Bet v 1 and subsequent immunologic cross-reactivity of Bet v 1 specific antibodies. Allergic symptoms typically include severe itching, scratching of the throat, and rhino conjunctivitis. So far, experimental structural data for the peach allergen Pru p 1 are not available...
December 12, 2018: Biomolecular NMR Assignments
https://read.qxmd.com/read/30539422/nmr-backbone-and-methyl-resonance-assignments-of-an-inhibitory-g-alpha-subunit-in-complex-with-gdp
#18
David Goricanec, Franz Hagn
G-proteins are essential switch points at the cell membrane that control downstream signaling by their ability to adopt an inactive, GDP-bound or an active, GTP-bound state. Among other exchange factors, G-protein coupled receptors (GPCRs) induce exchange of GDP to GTP and thus promote the active state of the G-protein. The nucleotide-binding α subunit of the G-protein undergoes major conformational changes upon nucleotide binding. Thus, an NMR analysis of the two distinct nucleotide-bound states is essential for a more detailed understanding of associated structural changes...
December 11, 2018: Biomolecular NMR Assignments
https://read.qxmd.com/read/30535613/sequential-backbone-resonance-assignment-of-at-rich-interaction-domain-of-human-baf200
#19
Abhishek Bastiray, Malyasree Giri, Mahavir Singh
BAF200 is a subunit of PBAF chromatin remodeling complex that contains an N-terminal AT-rich interaction domain (ARID). ARID domain in general has been shown to bind to the AT-rich DNA sequences. The human BAF200 ARID (~ 110 residues) has the potential to bind the DNA sequences with high affinity, however, the structure and the exact contribution of hBAF200 ARID in PBAF functions as well its DNA binding specificities have not been established. In this study, we have expressed and purified the hBAF200 ARID for NMR studies...
December 10, 2018: Biomolecular NMR Assignments
https://read.qxmd.com/read/30474821/-1-h-15-n-13-c-resonance-assignment-of-the-human-cd44-cytoplasmic-tail-669-742
#20
Benjamin Frühbauer, Borja Mateos, Robert Konrat
CD44 is a universally and abundantly expressed single-pass type I protein that spans the cytoplasmic membrane and is considered the principal receptor for hyaluronan in the extracellular matrix. CD44 exerts a multitude of biological functions, especially in cell adhesion and migration, and its deregulation has several pathological implications, including a putative role in cancer cell dissemination. Here we report the NMR chemical shift assignment of the recombinant intrinsically disordered CD44 cytoplasmic region (669-742)...
November 24, 2018: Biomolecular NMR Assignments
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