Abstract:
:The influenza A virus nonstructural protein NS1 is a multifunctional dimeric protein that acts as a potent inhibitor of the host cellular antiviral state. The C-terminal effector domain of NS1 binds host proteins, including CPSF30, and is a target for the development of new antiviral drugs. Here we present crystallographic structures of two mutant effector domains, W187Y and W187A, of influenza A/Udorn/72 virus. Unlike wild-type, the mutants behave exclusively as monomers in solution based on gel filtration data and light scattering. The W187Y mutant is able to bind CPSF30 with a binding affinity close to the wild-type protein; that is, it retains a receptor site for aromatic ligands nearly identical to the wild-type. Therefore, this monomeric mutant protein could serve as a drug target for a high throughput inhibitor screening assays, since its binding pocket is unoccupied in solution and potentially more accessible to small molecule ligands.
journal_name
Arch Biochem Biophysjournal_title
Archives of biochemistry and biophysicsauthors
Xia S,Robertus JDdoi
10.1016/j.abb.2009.12.008subject
Has Abstractpub_date
2010-02-15 00:00:00pages
198-204issue
2eissn
0003-9861issn
1096-0384pii
S0003-9861(09)00408-1journal_volume
494pub_type
杂志文章abstract::The polymerization of alpha1-antitrypsin within the hepatic cell leads to alpha1-antitrypsin deficiency. Both the conformational changes and the kinetics of the polymerization process are poorly understood. Here we describe fluorescence experiments investigating the polymerization reaction using the fluorescent probe4...
journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章
doi:10.1006/abbi.1998.0751
更新日期:1998-08-15 00:00:00
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journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章
doi:10.1006/abbi.1993.1275
更新日期:1993-06-01 00:00:00
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journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章
doi:10.1016/0003-9861(88)90164-6
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journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章
doi:10.1016/0003-9861(89)90180-x
更新日期:1989-08-15 00:00:00
abstract::The G1 glycoprotein of Punta Toro virus, a member of the bunyavirus family, accumulates in the Golgi complex when it is expressed from cloned cDNA. We previously reported that the information necessary for Golgi retention of the G1 protein is located within the transmembrane domain and a portion of the cytoplasmic dom...
journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章
doi:10.1006/abbi.1996.0547
更新日期:1996-12-01 00:00:00
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journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章
doi:10.1016/0003-9861(83)90340-5
更新日期:1983-10-15 00:00:00
abstract::A novel action of the gonadotropic hormones of the adenohypophysis on the regulation of kidney heme metabolism and cytochrome P-450 concentrations is described. The treatment of rats with cis-platinum for 7 days caused a greater than twofold increase in the microsomal cytochrome P-450 and heme concentrations in the ki...
journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章
doi:10.1016/0003-9861(85)90007-4
更新日期:1985-07-01 00:00:00
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journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章
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更新日期:1989-04-01 00:00:00
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journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章,评审
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更新日期:2015-06-15 00:00:00
abstract::Calorie restriction (CR) has been shown to improve peripheral insulin resistance and type 2 diabetes in animal models. However, the exact mechanism of CR on GLUT4 expression and translocation in insulin-sensitive tissues has not been well elucidated. In the present study, we examine the effect of CR on the expression ...
journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章
doi:10.1016/j.abb.2005.01.010
更新日期:2005-04-15 00:00:00
abstract::(+)-Menthofuran is an undesirable monoterpenoid component of peppermint (Mentha x piperita) essential oil that is derived from the alpha,beta-unsaturated ketone (+)-pulegone. Microsomal preparations, from the oil gland secretory cells of a high (+)-menthofuran-producing chemotype of Mentha pulegium, transform (+)-pule...
journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章
doi:10.1006/abbi.2001.2378
更新日期:2001-06-15 00:00:00
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journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章
doi:10.1016/S0003-9861(02)00263-1
更新日期:2002-07-01 00:00:00
abstract::Studies in eucaryotic cells (mainly animals and yeast) indicate that at least two DNA polymerases are involved in DNA replication at the level of the replication fork: DNA polymerase alpha, which is associated with DNA primase, is involved in the replication of the lagging strand; DNA polymerase delta, associated with...
journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章
doi:10.1016/0003-9861(91)90399-4
更新日期:1991-05-15 00:00:00
abstract::The F1FO-ATP synthase of the colorless alga Polytomella sp. exhibits a robust peripheral arm constituted by nine atypical subunits only present in chlorophycean algae. The isolated dimeric enzyme exhibits a latent ATP hydrolytic activity which can be activated by some detergents. To date, the kinetic behavior of the a...
journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章
doi:10.1016/j.abb.2015.03.018
更新日期:2015-06-01 00:00:00
abstract::Addition of ascorbate or its generation from gulonolactone causes the oxidation of protein thiols and a simultaneous dehydroascorbate formation in rat liver microsomes. The participation of vitamin E in the phenomenon was studied. We measured ascorbate and protein thiol oxidation and lipid peroxidation in vitamin E de...
journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章
doi:10.1006/abbi.2000.2260
更新日期:2001-04-01 00:00:00
abstract::The cellular environment is crowded with different kinds of molecules with varying sizes, shapes and compositions. Most of the experiments studying the nature and behaviour of a protein have been done on the isolated protein in dilute buffer solutions which actually do not imitate the in vivo situation. To understand ...
journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章
doi:10.1016/j.abb.2015.08.015
更新日期:2015-10-15 00:00:00
abstract::Synephrinase, an enzyme catalyzing the conversion of (-)-synephrine into p-hydroxyphenylacetaldehyde and methylamine, was purified to apparent homogeneity from the cell-free extracts of Arthrobacter synephrinum grown on (+/-)-synephrine as the sole source of carbon and nitrogen. A 40-fold purification was sufficient t...
journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章
doi:10.1016/0003-9861(86)90428-5
更新日期:1986-07-01 00:00:00
abstract::Thyroid peroxidase (TPO) was purified from human thyroid tissue, obtained at surgery from patients with Graves' disease, by a procedure similar to one that we had previously used for the purification of porcine TPO. The membrane-bound enzyme was solubilized by treatment of the thyroid particulate fraction with trypsin...
journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章
doi:10.1016/0003-9861(90)90268-4
更新日期:1990-05-01 00:00:00
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journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章
doi:10.1016/0003-9861(83)90602-1
更新日期:1983-06-01 00:00:00
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journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章
doi:10.1016/0003-9861(89)90294-4
更新日期:1989-06-01 00:00:00
abstract::Thermal perturbation techniques have been used to probe structural features of the nicotinic acetylcholine receptor (AcChR). The information obtained from differential scanning calorimetry (DSC) of AcChR membranes (M.C. Farach and M. Martinez-Carrion (1983) J. Biol. Chem. 258, 4176) in the absence and in the presence ...
journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章
doi:10.1016/0003-9861(87)90319-5
更新日期:1987-10-01 00:00:00
abstract::Aldehyde oxidase (AO) and xanthine oxidase (XO) are cytosolic enzymes that have been involved in some pathological conditions and play an important role in the biotransformation of drugs and xenobiotics. The increasing interest in these enzymes demands for a simple and rapid procedure for their purification. This pape...
journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章
doi:10.1006/abbi.2002.2781
更新日期:2002-04-01 00:00:00
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journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章
doi:10.1006/abbi.1996.0027
更新日期:1996-01-15 00:00:00
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journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章
doi:10.1016/0003-9861(87)90099-3
更新日期:1987-04-01 00:00:00
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journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章
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更新日期:1989-05-01 00:00:00
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journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章
doi:10.1016/0003-9861(84)90150-4
更新日期:1984-02-15 00:00:00
abstract::Limited proteolysis of the plasma membrane calcium transport ATPase (Ca2+-ATPase) from human erythrocytes by trypsin produces a calmodulin-like activation of its ATP hydrolytic activity and abolishes its calmodulin sensitivity. We now demonstrate a similar kind of activation of the human erythrocyte membrane Ca2+-ATPa...
journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章
doi:10.1016/0003-9861(88)90498-5
更新日期:1988-02-01 00:00:00
abstract::We have characterized tamulustoxin, a novel 35-amino-acid peptide found in the venom of the Indian red scorpion (Mesobuthus tamulus). Tamulustoxin was identified through a [125I]toxin I screen, designed to identify toxins that block voltage-activated potassium channels. Tamulustoxin has also been cloned by RT-PCR, usi...
journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章
doi:10.1006/abbi.2000.2135
更新日期:2001-01-01 00:00:00
abstract::Glyceraldehyde (GA) has been used to study insulin secretion for decades and it is widely assumed that beta-cell metabolism of GA after its phosphorylation by triokinase is similar to metabolism of glucose; that is metabolism through distal glycolysis and oxidation in mitochondria. New data supported by existing infor...
journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章
doi:10.1016/j.abb.2006.01.019
更新日期:2006-03-15 00:00:00