Abstract:
:Members of Mononegavirales, the order that includes nonsegmented negative sense RNA viruses (NNSVs), encode a small number of multifunctional proteins. In members of the Filoviridae family, virus protein 35 (VP35) facilitates immune evasion and functions as an obligatory cofactor for viral RNA synthesis. VP35 functions in a manner orthologous to that of phosphoproteins from other NNSVs. Although the critical roles of Ebola viral VP35 (eVP35) in immune evasion and RNA synthesis are well-appreciated, a complete understanding of its organization and its role in carrying out its many functions has yet to be fully realized. In particular, we currently lack information about the role of the oligomerization domain within eVP35. To address this limitation, we report here an investigation of the oligomer structure of eVP35 using hybrid methods that include multiangle light scattering, small-angle X-ray scattering, and cross-linking coupled with mass spectrometry to determine the shape and orientation of the eVP35 oligomer. Our integrative results are consistent with a parallel tetramer in which the N-terminal regions that are required for RNA synthesis are all oriented in the same direction. Furthermore, these results define a framework for targeting the symmetric tetramer for structure-based antiviral discovery.
journal_name
Biochemistryjournal_title
Biochemistryauthors
Chanthamontri CK,Jordan DS,Wang W,Wu C,Lin Y,Brett TJ,Gross ML,Leung DWdoi
10.1021/acs.biochem.8b01154subject
Has Abstractpub_date
2019-02-12 00:00:00pages
657-664issue
6eissn
0006-2960issn
1520-4995journal_volume
58pub_type
杂志文章相关文献
BIOCHEMISTRY文献大全abstract::Thiol dioxygenases are mononuclear non-heme FeII-dependent metalloenzymes that initiate the oxidative catabolism of thiol-containing substrates to their respective sulfinates. Cysteine dioxygenase (CDO), the best characterized mammalian thiol dioxygenase, contains a three-histidine (3-His) coordination environment rat...
journal_title:Biochemistry
pub_type: 杂志文章
doi:10.1021/acs.biochem.0c00267
更新日期:2020-07-07 00:00:00
abstract::The activity of the phosphoenolpyruvate-dependent glucose phosphotransferase system (PTS) in Escherichia coli is coupled to the oxidation-reduction potential. It is inhibited when the redox potential is increased above -300 mV either via substrate oxidation or via direct addition of oxidizing agents. Depending on the ...
journal_title:Biochemistry
pub_type: 杂志文章
doi:10.1021/bi00520a032
更新日期:1981-08-18 00:00:00
abstract::[1-Penicillamine,2-leucine]oxytocin is a conformationally restricted analogue of oxytoxin in which the half-cystine-1 and tyrosine-2 residues of the native hormone are replaced by half-penicillamine (beta, beta-dimethyl-half-cystine) and leucine, respectively. This analogue is a surprisingly potent oxytocin antagonist...
journal_title:Biochemistry
pub_type: 杂志文章
doi:10.1021/bi00513a018
更新日期:1981-05-12 00:00:00
abstract::TcmO is an O-methyltransferase that methylates the C-8 hydroxyl to Tcm B3, a four-ring aromatic intermediate in the tetracenomycin biosynthetic pathway of Streptomyces glaucescens. The gene encoding this enzyme was expressed in Streptomyces coelicolor CH999 together with the actinorhodin polyketide synthase (PKS) gene...
journal_title:Biochemistry
pub_type: 杂志文章
doi:10.1021/bi952957y
更新日期:1996-05-28 00:00:00
abstract::Orthophosphate and phosphate derivatives including pyrophosphate, hexametaphosphate, ATP, ADP, and inositol hexaphosphate enhance the extent of DNA degradation by iron(II) bleomycin. These phosphate-containing compounds increase both the release of free nucleic base and that of base propenals which are DNA cleavage pr...
journal_title:Biochemistry
pub_type: 杂志文章
doi:10.1021/bi00335a034
更新日期:1985-07-02 00:00:00
abstract::We report a new observation of the role of Escherichia coli single-strand DNA binding protein (SSB) in synthesis of primer RNA (pRNA) catalyzed by.E.coli primase on the SSB-coated phage G4oric template. Using a set of ATP priming substrates with reactive groups attached to the 5' gamma-phosphate on different length "a...
journal_title:Biochemistry
pub_type: 杂志文章
doi:10.1021/bi972455f
更新日期:1998-03-17 00:00:00
abstract::To probe attitudinal features of the Ca(2+)-deficient site (site I) in the Ca2+ switch of cardiac troponin C (cTnC), we have examined steady-state fluorescence emission and polarization of a Trp26 inserted in a recombinant cardiac TnC (cTnC3.W) and compared these with the properties of the Ca(2+)-competent site I in s...
journal_title:Biochemistry
pub_type: 杂志文章
doi:10.1021/bi00002a022
更新日期:1995-01-17 00:00:00
abstract::Heparin was isolated from an unusually large human hemangioma that contained an elevated level of mast cells. Purification of multimilligram quantities of heparin from this tissue sample permitted a thorough examination of its structure and activity. Characterization of this human heparin included the following: one-d...
journal_title:Biochemistry
pub_type: 杂志文章
doi:10.1021/bi00164a020
更新日期:1992-12-15 00:00:00
abstract::The existence of two conformational states of concanavalin A (Con A) with different metal ion binding properties has been recently demonstrated (Brown, R. D., Brewer, C. F., & Koenig, S. H. (1977) Biochemistry 16, 3883). Introduction of Mn2+ to the S1 site and Ca2+ to the S2 site of apo-Con A was shown to induce a con...
journal_title:Biochemistry
pub_type: 杂志文章
doi:10.1021/bi00613a022
更新日期:1978-10-03 00:00:00
abstract::Horseradish peroxidase (HRP) was oxidized by IrCl6(2-) to a mixture of compounds I and II, the rate of oxidation and the ratio of the mixture being greatly affected by pH (Hayashi & Yamazaki, 1979). Oxidation of HRP by IrCl6(2-) in the presence of fluoride was significantly accelerated. This resulted in the formation ...
journal_title:Biochemistry
pub_type: 杂志文章
doi:10.1021/bi00046a003
更新日期:1995-11-21 00:00:00
abstract::The selenoamino acids methylselenocysteine (MeSeCys) and selenomethionine (SeMet) have disparate efficacies as anticancer agents. Herein, we use X-ray absorption spectroscopy to determine the chemical form of selenium in human neuroblastoma cells. Cells treated with MeSeCys contain a significant diselenide component, ...
journal_title:Biochemistry
pub_type: 杂志文章
doi:10.1021/bi201462u
更新日期:2012-01-24 00:00:00
abstract::An overexpression system for spinach apocytochrome b(6) as a fusion protein to a maltose-binding protein in Escherichia coli was established using the expression vector pMalp2. The fusion of the cytochrome b(6) to the periplasmic maltose-binding protein directs the cytochrome on the Sec-dependent pathway. The cytochro...
journal_title:Biochemistry
pub_type: 杂志文章
doi:10.1021/bi047422w
更新日期:2005-05-24 00:00:00
abstract::Regions of the negative strands of the satellite RNAs of chicory yellow mottle virus (sCYMV1) and arabis mosaic virus (sArMV) have similarity in sequence and predicted secondary structure compared to the tobacco ringspot virus satellite RNA (sTRSV) hairpin ribozyme, suggesting that they may also be catalytic RNAs of a...
journal_title:Biochemistry
pub_type: 杂志文章
doi:10.1021/bi00048a024
更新日期:1995-12-05 00:00:00
abstract::Membranes derived from free floating granulosa cells in porcine ovarian follicular fluid were used as a starting material for structural characterization of both LH/hCG and FSH receptors. The receptors were highly hormone-specific and showed single classes of high-affinity binding sites (Kd = 19-74 pM). Their molecula...
journal_title:Biochemistry
pub_type: 杂志文章
doi:10.1021/bi00467a022
更新日期:1990-04-17 00:00:00
abstract::3-Deoxy-d- manno-2-octulosonate-8-phosphate (KDO8P) synthase catalyzes the first step of lipopolysaccharide biosynthesis, namely condensation of phosphoenolpyruvate (PEP) with arabinose 5-phosphate (A5P), to produce KDO8P. We have characterized Campylobacter jejuni KDO8P synthase and its inhibition by KDO8P oxime. It ...
journal_title:Biochemistry
pub_type: 杂志文章
doi:10.1021/acs.biochem.8b00748
更新日期:2018-09-11 00:00:00
abstract::Recent models for water oxidation in photosystem II postulate that the tyrosine Y(Z) radical, Y(Z)(*), abstracts both an electron and a proton from the Mn cluster during one or more steps in the catalytic cycle. This coupling of proton- and electron-transfer events is postulated to provide the necessary driving force ...
journal_title:Biochemistry
pub_type: 杂志文章
doi:10.1021/bi992749w
更新日期:2000-05-30 00:00:00
abstract::Cerebrovascular deposition of fibrillar 39-42 amino acid amyloid beta-protein (Abeta), a condition known as cerebral amyloid angiopathy (CAA), is a key pathological feature of Alzheimer's disease and related disorders including hereditary cerebral hemorrhage with amyloidosis-Dutch type (HCHWA-D). Severe cases of CAA, ...
journal_title:Biochemistry
pub_type: 杂志文章
doi:10.1021/bi0002840
更新日期:2000-06-27 00:00:00
abstract::Subunit II of the aa3 type cytochrome c oxidase contains a binuclear copper center (CuA) which functions as the entry point for electrons donated by cytochrome c. We have introduced site-specific mutations in residues liganding the CuA center in the oxidase of the bacterium Paracoccus denitrificans; the purified, full...
journal_title:Biochemistry
pub_type: 杂志文章
doi:10.1021/bi962040e
更新日期:1997-03-18 00:00:00
abstract::The initial steps of actomyosin subfragment 1 (acto-S1) ATPase (dissociation and binding of ATP) were studied at -15 degrees C with 40% ethylene glycol as antifreeze. The dissociation kinetics were followed by light scattering in a stopped-flow apparatus, and the binding of ATP was followed by the ATP chase method in ...
journal_title:Biochemistry
pub_type: 杂志文章
doi:10.1021/bi00459a026
更新日期:1990-02-20 00:00:00
abstract::Seventeen ribosomal proteins of Saccharomyces cerevisiae were isolated from small ribosomal subunits and disodium ethylenediaminetetraacetate treated 80S ribosomes by chromatography on a column of carboxymethylcellulose and/or by filtration through Sephacryl S-200. The isolated proteins are YS4, YS7, YS8, YS9, YS10, Y...
journal_title:Biochemistry
pub_type: 杂志文章
doi:10.1021/bi00262a005
更新日期:1982-09-14 00:00:00
abstract::Protocatechuate 3,4-dioxygenase (3,4-PCD) utilizes a ferric ion to catalyze the aromatic ring cleavage of 3,4-dihydroxybenzoate (PCA) by incorporation of both atoms of dioxygen to yield beta-carboxy-cis, cis-muconate. The crystal structures of the anaerobic 3,4-PCD.PCA complex, aerobic complexes with two heterocyclic ...
journal_title:Biochemistry
pub_type: 杂志文章
doi:10.1021/bi970469f
更新日期:1997-08-19 00:00:00
abstract::Thermococcus litoralis 4-alpha-glucanotransferase (TLGT) belongs to family 57 of glycoside hydrolases and catalyzes the disproportionation and cycloamylose synthesis reactions. Family 57 glycoside hydrolases have not been well investigated, and even the catalytic mechanism involving the active site residues has not be...
journal_title:Biochemistry
pub_type: 杂志文章
doi:10.1021/bi011017c
更新日期:2001-10-16 00:00:00
abstract::Nonenzymatic deamidation of asparagine and glutamine in peptides and proteins is a frequent modification both in vivo and in vitro. The biological effect is not completely understood, but it is often associated with protein degradation and loss of biological function. Here we describe the deamidation of CsgA, the majo...
journal_title:Biochemistry
pub_type: 杂志文章
doi:10.1021/acs.biochem.7b00241
更新日期:2017-06-13 00:00:00
abstract::Halogen bonding is a weak chemical force that has so far mostly found applications in crystal engineering. Despite its potential for use in drug discovery, as a new molecular tool in the direction of molecular recognition events, it has rarely been assessed in biopolymers. Motivated by this fact, we have developed a p...
journal_title:Biochemistry
pub_type: 杂志文章
doi:10.1021/acs.biochem.7b00429
更新日期:2017-06-27 00:00:00
abstract::Solid-state NMR spectroscopy was employed to study the molecular dynamics of the colicin Ia channel domain in the soluble and membrane-bound states. In the soluble state, the protein executes small-amplitude librations (with root-mean-square angular fluctuations of 0-10 degrees ) in the backbone and larger-amplitude m...
journal_title:Biochemistry
pub_type: 杂志文章
doi:10.1021/bi0027231
更新日期:2001-06-26 00:00:00
abstract::Backbone dynamics in the [5',5"-2H2]2'-deoxythymidine labeled duplex dodecamer [d-(CGCGAAT*T*CGC)]2 have been investigated by solid-state 2H NMR. Quadrupolar echo line shapes, spin-lattice relaxation, and quadrupolar echo decay times were obtained over hydration levels ranging from W = 0.0 to 25.2 (moles of H2O/mole o...
journal_title:Biochemistry
pub_type: 杂志文章
doi:10.1021/bi00102a014
更新日期:1991-09-24 00:00:00
abstract::The respiratory chain complexes can arrange into multienzyme assemblies, so-called supercomplexes. We present the first 3D map of a respiratory chain supercomplex. It was determined by random conical tilt electron microscopy analysis of a bovine supercomplex consisting of complex I, dimeric complex III, and complex IV...
journal_title:Biochemistry
pub_type: 杂志文章
doi:10.1021/bi700983h
更新日期:2007-11-06 00:00:00
abstract::Fluorescence spectroscopy has been used to monitor the partitioning of a series of exchangeable neutral phospholipid probes, labeled with carbazole, indolyl or diphenylhexatrienyl moieties, between large unilamellar vesicles containing 1-palmitoyl-2-oleoylphosphatidylcholine (POPC), 1,2-dioleoyloxy-3-(trimethylammonio...
journal_title:Biochemistry
pub_type: 杂志文章
doi:10.1021/bi00244a018
更新日期:1991-07-30 00:00:00
abstract::We report here that polyamide nucleic acid (PNA) as well as a polyamide nucleic acid-DNA chimera complementary to the primer binding site of the HIV-1 genome can completely block priming by tRNA3Lys and consequently the in vitro initiation of reverse transcription by HIV-1 RT. Conventional heating and cooling is not r...
journal_title:Biochemistry
pub_type: 杂志文章
doi:10.1021/bi972197m
更新日期:1998-01-20 00:00:00
abstract::Upon injury of a blood vessel, activated factor VII (FVIIa) forms a high-affinity complex with its allosteric regulator, tissue factor (TF), and initiates blood clotting. Active site-inhibited factor VIIa (FVIIai) binds to TF with even higher affinity. We compared the interactions of FVIIai and FVIIa with soluble TF (...
journal_title:Biochemistry
pub_type: 杂志文章
doi:10.1021/bi010283n
更新日期:2001-08-07 00:00:00