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One or more keywords matched the following properties of Tang, Wei-Jen
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overview My laboratory focuses on applying integrated structural and biochemical approaches to elucidate the molecular basis of protein-protein interactions and protein-ligand/drug interactions that are relevant to human health and diseases. Armed with such knowledge, we then apply chemical and pharmacological approaches to develop therapeutic innovations. Currently, we are studying the following proteins: Amyloid peptide-degrading proteases: Metalloproteases, insulin degrading enzyme (IDE) and presequence protease (PreP) degrade amyloid beta, a peptide vital for the progression of Alzheimer's disease. IDE is also involved in the clearance of insulin, amylin, and glucagon, pancreatic peptides for glucose homeostasis. PreP is involved in the clearance of mitochondrial importing presequence peptides, which are toxic to mitochondria. Our structures of human IDE in complex with its substrates elucidate the molecular basis of how IDE recognizes amyloidogenic peptides and offers a basis to explore IDE-based therapeutics in controlling cerebral amyloid beta accumulation and blood sugar levels. Our structures of human PreP reveal how PreP recognizes amyloid beta. Future directions in studying proteases that degrade amyloid peptides include exploration into the molecular basis in the regulation of catalysis of IDE, PreP, and other amyloid-peptide degrading proteases such as neprilysin and endothelin converting enzymes, discovery of small molecule activator and inhibitor leads, and protein engineering for therapies. Chemokines: Inflammation is vital in the progression of many chronic human illnesses. Proinflammatory chemokines, e.g., CCL5 and CCL3, play key roles in modulating inflammation and consequently affect disease progression such as cancer and immunological disorders. In addition, CCR5, the CCL3 and CCL5 cognate receptor, is a co-receptor for HIV virus. Self-association and binding to extracellular glycan of chemokines are key regulatory steps in controlling chemokine functions. Our structural and biochemical analyses of CCL3 and CCL5 have elucidated the structural basis of CCL3 and CCL5 oligomerization and binding to glycosaminoglycan (GAG). Future directions include the elucidation of the molecular basis of how oligomerization and GAG binding regulates chemokine functions and the development of small molecules to modulate inflammation. Bacterial toxins secreted by human bacterial pathogens: We study bacterial adenylyl cyclase toxins that are only active upon entering into target cells and are associated with cellular proteins that serve as the activator. These adenylyl cyclase toxins raise the intracellular cyclic AMP (cAMP) of their host cells to benefit bacterial propagation. We have studied three adenylyl cyclase toxins, edema factor (EF) secreted by bacteria that cause anthrax, CyaA secreted bacteria that cause whooping cough, and ExoY injected by Pseudomonas aeruginosa, an opportunistic pathogens for nosocomial infections. Both EF and CyaA bind the cellular calcium sensor, calmodulin, with high affinity. Our structural and biochemical analyses have elucidated how calmodulin binds and activates EF and CyaA. ExoY is activated by binding to F-actin and we show that ExoY induces the bundling of F-actin. We will continue to address the structural basis for the interaction of these toxins with their cellular partners. We will also explore the therapeutic potential of adenylyl cyclase toxins in human diseases as well. The incident of bioterrorism-related anthrax in 2001 has moved the challenge against anthrax from an obscure agricultural problem to the center of bio-defense. Given the ease of making antibiotic-resistant anthrax strains and unknown enemies, the best defense against anthrax is to build up a battery of possible antidotes against anthrax that can be rapidly scaled up for production in response to the low probability, high impact incidence of anthrax-related bioterrorism.
One or more keywords matched the following items that are connected to Tang, Wei-Jen
Item TypeName
Concept Actins
Concept Adenylyl Imidodiphosphate
Concept Amyloid
Concept Alkylation
Concept Adenylyl Cyclases
Concept Cyclic AMP
Concept Breast Neoplasms
Concept Amino Acid Sequence
Concept Blood Coagulation
Concept Bordetella pertussis
Concept Antigens
Concept Antigens, Differentiation
Concept Antigens, Polyomavirus Transforming
Concept Antineoplastic Agents
Concept Animals
Concept Antiviral Agents
Concept Calmodulin
Concept Epitopes
Concept Apomorphine
Concept Central Nervous System Stimulants
Concept Arginine
Concept Antigens, Bacterial
Concept Antigens, Viral, Tumor
Concept Base Sequence
Concept Cell Movement
Concept Bacteriocins
Concept Bacillus anthracis
Concept Azoles
Concept Bacillus cereus
Concept Binding Sites
Concept Blood Glucose
Concept Bone Marrow
Concept Cattle
Concept Cell Separation
Concept Carbachol
Concept Cell Transformation, Neoplastic
Concept Chemotaxis
Concept Genetic Vectors
Concept Guinea Pigs
Concept Concanavalin A
Concept Cricetulus
Concept Cholesterol
Concept Chromatography, Ion Exchange
Concept Corticosterone
Concept Cytosine Nucleotides
Concept Diabetes Mellitus, Type 2
Concept Cysteine
Concept Ileum
Concept Imidazoles
Concept Dendritic Cells
Concept Immunoglobulin Fab Fragments
Concept Insulin
Concept Insulysin
Concept Drosophila
Concept DNA Mutational Analysis
Concept Dogs
Concept Electrophoresis, Polyacrylamide Gel
Concept Gastric Mucosa
Concept Genes, Regulator
Concept Kallidin
Concept Enzyme Inhibitors
Concept Manganese
Concept Diagnostic Imaging
Concept Drosophila melanogaster
Concept Drug Evaluation, Preclinical
Concept Colforsin
Concept Fibroblasts
Concept Insulin-Like Growth Factor II
Concept Electrocardiography
Concept Enzyme Activation
Concept Models, Chemical
Concept Gene Expression Regulation
Concept Multiple Organ Failure
Concept Genes, Viral
Concept Gastric Emptying
Concept Glucagon
Concept Neovascularization, Pathologic
Concept Nitrogen
Concept Isomerism
Concept Guanosine Triphosphate
Concept Nucleic Acid Hybridization
Concept Obesity
Concept Heart
Concept Heart Ventricles
Concept DNA, Viral
Concept Dose-Response Relationship, Drug
Concept Hydrogen Peroxide
Concept Hypoglycemic Agents
Concept Escherichia coli
Concept Hydroxamic Acids
Concept Flow Cytometry
Concept Isoenzymes
Concept Guanylate Cyclase
Concept Lepidoptera
Concept Light
Concept Macrophages
Concept Maleimides
Concept Magnesium
Concept Intestines
Concept Membrane Glycoproteins
Concept Hydrolysis
Concept Microfilament Proteins
Concept Models, Molecular
Concept Mammals
Concept Naphthalenesulfonates
Concept Mice, Neurologic Mutants
Concept Actin Cytoskeleton
Concept Immunohistochemistry
Concept Insecta
Concept Mycobacterium tuberculosis
Concept Oxadiazoles
Concept Mice, Inbred BALB C
Concept Mice, Inbred C57BL
Concept Mice, Nude
Concept Microsomes, Liver
Concept Random Allocation
Concept Mutation
Concept Cricetinae
Concept Hemolysin Proteins
Concept Ion Channels
Concept Ovarian Neoplasms
Concept Oxidation-Reduction
Concept Lipopolysaccharides
Concept Oligopeptides
Concept Oocytes
Concept Shock
Concept Shock, Septic
Concept Magnetic Resonance Spectroscopy
Concept Oxygen
Concept Plasmids
Concept Protein Conformation
Concept Protein Processing, Post-Translational
Concept Quantum Theory
Concept Pulmonary Edema
Concept Forecasting
Concept Glucose Tolerance Test
Concept Rabbits
Concept Receptors, Antigen
Concept X-Ray Diffraction
Concept Intermediate Filament Proteins
Concept Intestinal Mucosa
Concept Potassium Channels
Concept Isopropyl Thiogalactoside
Concept Humans
Concept Software
Concept Thermodynamics
Concept Thinness
Concept Tumor Necrosis Factor-alpha
Concept Xenopus laevis
Concept Drug Design
Concept Protein Engineering
Concept Isoquinolines
Concept Neprilysin
Concept Leukemia, Lymphocytic, Chronic, B-Cell
Concept Lymphoid Tissue
Concept Cell Culture Techniques
Concept Drug Resistance, Neoplasm
Concept Inhalation Exposure
Concept Hepatitis B, Chronic
Concept Cryoelectron Microscopy
Concept Guanine Nucleotide Exchange Factors
Concept Tyrosine
Concept Herpesvirus 3, Human
Concept Water
Concept Protein Structure, Quaternary
Concept Mitogen-Activated Protein Kinases
Concept Models, Animal
Concept Guanosine 5'-O-(3-Thiotriphosphate)
Concept Organoselenium Compounds
Concept HIV Protease
Concept Mice, Inbred DBA
Concept Antigens, CD
Concept Mitochondria
Concept Molecular Conformation
Concept Paclitaxel
Concept Interleukin-10
Concept Fusion Proteins, gag-pol
Concept Rats, Sprague-Dawley
Concept Mutagenesis, Site-Directed
Concept Sequence Alignment
Concept Myocardium
Concept Protein Structure, Tertiary
Concept Methionine
Concept Paraffin Embedding
Concept Neoplasm Recurrence, Local
Concept Neutralization Tests
Concept Oligodeoxyribonucleotides
Concept Consensus Sequence
Concept Point Mutation
Concept Sequence Deletion
Concept MAP Kinase Kinase 1
Concept Mice, Knockout
Concept Crystallography, X-Ray
Concept Dopamine Agonists
Concept Gene Expression Regulation, Developmental
Concept DNA, Complementary
Concept MAP Kinase Kinase 7
Concept Cell Proliferation
Concept GTP-Binding Protein alpha Subunits, Gs
Concept Interleukin-12
Concept Glucose Intolerance
Concept Spodoptera
Concept ras Guanine Nucleotide Exchange Factors
Concept Receptors, CXCR4
Concept Chemokines, CC
Concept Mutation, Missense
Concept Drosophila Proteins
Concept Chemokine CXCL12
Concept src Homology Domains
Concept Chemokine CCL5
Concept Jurkat Cells
Concept Nucleus Accumbens
Concept Reactive Oxygen Species
Concept Protein Structure, Secondary
Concept EF Hand Motifs
Concept Adenylate Cyclase Toxin
Concept Primary Cell Culture
Concept Consensus
Concept Natriuretic Peptides
Concept Chromatin Immunoprecipitation
Concept Endopeptidase K
Concept COS Cells
Concept Amino Acid Substitution
Concept Luminescence
Concept Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization
Concept Mitogen-Activated Protein Kinase Kinases
Concept Heterotrimeric GTP-Binding Proteins
Concept Potassium Channels, Inwardly Rectifying
Concept Peptidylprolyl Isomerase
Concept Catalytic Domain
Concept Enzyme Activators
Concept Piperidines
Concept Saccharomyces cerevisiae Proteins
Concept Animals, Genetically Modified
Concept Pseudomonas aeruginosa
Concept Mice
Concept Focal Adhesion Protein-Tyrosine Kinases
Concept Pyrazoles
Concept Fas-Associated Death Domain Protein
Concept Pyrimidines
Concept Pyrimidine Nucleotides
Concept Diphosphates
Concept Saccharomyces cerevisiae
Concept Tandem Mass Spectrometry
Concept Spectrometry, Fluorescence
Concept Sulfonamides
Concept Multiprotein Complexes
Concept Molecular Targeted Therapy
Concept Rats
Concept Triazoles
Concept Static Electricity
Concept Time-Lapse Imaging
Concept High-Throughput Nucleotide Sequencing
Concept Spleen
Concept Adaptor Proteins, Signal Transducing
Concept Chemokine CCL4
Concept Zinc
Concept Immunoblotting
Concept Blotting, Western
Concept Transforming Growth Factor alpha
Concept Tetradecanoylphorbol Acetate
Concept Thiazoles
Concept Proto-Oncogene Proteins c-jun
Concept Transfection
Concept Ionomycin
Concept Gene Expression Regulation, Enzymologic
Concept Receptors, Peptide
Concept Amyloid beta-Peptides
Concept Baculoviridae
Concept HIV Protease Inhibitors
Concept GTP-Binding Proteins
Concept Chemokine CCL3
Concept Isoindoles
Concept Gene Silencing
Concept Ubiquitin
Concept Peptide Library
Concept Macrophage Inflammatory Proteins
Concept Rats, Long-Evans
Concept Structural Homology, Protein
Concept Protein Sorting Signals
Concept JNK Mitogen-Activated Protein Kinases
Concept S-Nitrosoglutathione
Concept Retinal Neurons
Concept RNA, Small Interfering
Concept Microfluidics
Concept Cell Shape
Concept G Protein-Coupled Inwardly-Rectifying Potassium Channels
Concept Perforin
Concept Antibodies, Neutralizing
Concept Islet Amyloid Polypeptide
Concept Alzheimer Disease
Concept Antibodies
Concept Binding, Competitive
Concept Blood Cell Count
Concept Blood Chemical Analysis
Concept Calcium
Concept Cell Survival
Concept Cloning, Molecular
Concept Diabetes Mellitus
Concept Disease Models, Animal
Concept Enhancer Elements, Genetic
Concept Hemagglutinins
Concept Hemorrhage
Concept Histidine
Concept Kinetics
Concept Lymphocyte Activation
Concept Membrane Potentials
Concept Metals
Concept Mice, Mutant Strains
Concept Microscopy, Fluorescence
Concept Models, Biological
Concept Organ Specificity
Concept Psychotropic Drugs
Concept Receptors, Virus
Concept Recombinant Fusion Proteins
Concept Self Administration
Concept Serine Endopeptidases
Concept T-Lymphocytes
Concept Vimentin
Concept Restriction Mapping
Concept HIV-1
Concept Gene Expression Regulation, Bacterial
Concept Gene Expression Regulation, Neoplastic
Concept Cytokines
Concept Oncogene Proteins v-fos
Concept Conserved Sequence
Concept Cyclic AMP-Dependent Protein Kinases
Concept DNA Primers
Concept Genetic Predisposition to Disease
Concept Membrane Microdomains
Concept Fluorescence Resonance Energy Transfer
Concept Macrocyclic Compounds
Concept Protein Kinase Inhibitors
Concept Casein Kinase Ialpha
Concept Actin Depolymerizing Factors
Concept Quorum Sensing
Concept Imaginal Discs
Academic Article Crystallization and preliminary X-ray study of the edema factor exotoxin adenylyl cyclase domain from Bacillus anthracis in the presence of its activator, calmodulin.
Academic Article Expression and purification of soluble adenylyl cyclase from Escherichia coli.
Academic Article Gadd45 beta mediates the NF-kappa B suppression of JNK signalling by targeting MKK7/JNKK2.
Academic Article Selective inhibition of anthrax edema factor by adefovir, a drug for chronic hepatitis B virus infection.
Academic Article The C-terminal domain of human insulin degrading enzyme is required for dimerization and substrate recognition.
Academic Article Bacillus anthracis edema toxin causes extensive tissue lesions and rapid lethality in mice.
Academic Article Protein-protein docking and analysis reveal that two homologous bacterial adenylyl cyclase toxins interact with calmodulin differently.
Academic Article Spatial localization of bacteria controls coagulation of human blood by 'quorum acting'.
Academic Article Protective role of Cys-178 against the inactivation and oligomerization of human insulin-degrading enzyme by oxidation and nitrosylation.
Academic Article Phosphorylation of FADD at serine 194 by CKIalpha regulates its nonapoptotic activities.
Academic Article Structures of human insulin-degrading enzyme reveal a new substrate recognition mechanism.
Academic Article Cellular functions and X-ray structure of anthrolysin O, a cholesterol-dependent cytolysin secreted by Bacillus anthracis.
Academic Article Modular total chemical synthesis of a human immunodeficiency virus type 1 protease.
Academic Article Insights from atomic-resolution X-ray structures of chemically synthesized HIV-1 protease in complex with inhibitors.
Academic Article Anthrax edema factor potency depends on mode of cell entry.
Academic Article Previous exposure to delta9-tetrahydrocannibinol enhances locomotor responding to but not self-administration of amphetamine.
Academic Article Structure of substrate-free human insulin-degrading enzyme (IDE) and biophysical analysis of ATP-induced conformational switch of IDE.
Academic Article Molecular bases for the recognition of short peptide substrates and cysteine-directed modifications of human insulin-degrading enzyme.
Academic Article The role of anthrolysin O in gut epithelial barrier disruption during Bacillus anthracis infection.
Academic Article Truncation and alanine-scanning mutants of type I adenylyl cyclase.
Academic Article The inwardly rectifying K(+) channel subunit GIRK1 rescues the GIRK2 weaver phenotype.
Academic Article Catalytic mechanism and regulation of mammalian adenylyl cyclases.
Academic Article An extended conformation of calmodulin induces interactions between the structural domains of adenylyl cyclase from Bacillus anthracis to promote catalysis.
Academic Article Construction of soluble adenylyl cyclase from human membrane-bound type 7 adenylyl cyclase.
Academic Article Structural basis for the activation of anthrax adenylyl cyclase exotoxin by calmodulin.
Academic Article Class III adenylyl cyclases: regulation and underlying mechanisms.
Academic Article Conversion of forskolin-insensitive to forskolin-sensitive (mouse-type IX) adenylyl cyclase.
Academic Article Structural changes in intermediate filament networks alter the activity of insulin-degrading enzyme.
Academic Article Structure of anthrax edema factor-calmodulin-adenosine 5'-(alpha,beta-methylene)-triphosphate complex reveals an alternative mode of ATP binding to the catalytic site.
Academic Article Physiological calcium concentrations regulate calmodulin binding and catalysis of adenylyl cyclase exotoxins.
Academic Article Structural and kinetic analyses of the interaction of anthrax adenylyl cyclase toxin with reaction products cAMP and pyrophosphate.
Academic Article Polymerization of MIP-1 chemokine (CCL3 and CCL4) and clearance of MIP-1 by insulin-degrading enzyme.
Academic Article A 1.3-A structure of zinc-bound N-terminal domain of calmodulin elucidates potential early ion-binding step.
Academic Article Expression of alpha subunit of Gs in Escherichia coli.
Academic Article Molecular basis for the recognition and cleavages of IGF-II, TGF-alpha, and amylin by human insulin-degrading enzyme.
Academic Article The adenylyl cyclase activity of anthrax edema factor.
Academic Article Expression of metalloprotease insulin-degrading enzyme insulysin in normal and malignant human tissues.
Academic Article Immunohistochemical evidence of ubiquitous distribution of the metalloendoprotease insulin-degrading enzyme (IDE; insulysin) in human non-malignant tissues and tumor cell lines.
Academic Article Three discrete regions of mammalian adenylyl cyclase form a site for Gsalpha activation.
Academic Article Structural basis for the interaction of Bordetella pertussis adenylyl cyclase toxin with calmodulin.
Academic Article Daughterless homodimer synergizes with Eyeless to induce Atonal expression and retinal neuron differentiation.
Academic Article Conformational states and recognition of amyloidogenic peptides of human insulin-degrading enzyme.
Academic Article Targeting Insulin-Degrading Enzyme to Treat Type 2 Diabetes Mellitus.
Academic Article Structural basis for oligomerization and glycosaminoglycan binding of CCL5 and CCL3.
Academic Article Identification of a structurally novel BTK mutation that drives ibrutinib resistance in CLL.
Grant REGULATION OF MAMMALIAN MEMBRANE-BOUND ADENYLYL CYCLASE
Grant Structure and functions of chemokine CCL5-CXCL4 hetero-oligomer
Grant Intervention against anthrax edema factor (EF)
Grant Integrative structural analysis of human insulin degrading enzyme
Grant Regulation and Catalysis of Human Insulin Degrading Enzyme
Academic Article Asp-286----Asn-286 in polyomavirus large T antigen relaxes the specificity of binding to the polyomavirus origin.
Academic Article Adenylyl cyclase amino acid sequence: possible channel- or transporter-like structure.
Academic Article Regulation of mammalian adenylyl cyclases by G-protein alpha and beta gamma subunits.
Academic Article Activation of the polyomavirus enhancer by a murine activator protein 1 (AP1) homolog and two contiguous proteins.
Academic Article Constitutive expression of simian virus 40 large T antigen in monkey cells activates their capacity to support polyomavirus replication.
Academic Article AP1 enhances polyomavirus DNA replication by promoting T-antigen-mediated unwinding of DNA.
Academic Article Nucleotides in the polyomavirus enhancer that control viral transcription and DNA replication.
Academic Article Type-specific regulation of adenylyl cyclase by G protein beta gamma subunits.
Academic Article Construction of a soluble adenylyl cyclase activated by Gs alpha and forskolin.
Academic Article Expression and characterization of calmodulin-activated (type I) adenylylcyclase.
Academic Article Locking the Elbow: Improved Antibody Fab Fragments as Chaperones for Structure Determination.
Academic Article Rapid Discovery and Characterization of Synthetic Neutralizing Antibodies against Anthrax Edema Toxin.
Academic Article Identification of ebselen as a potent inhibitor of insulin degrading enzyme by a drug repurposing screening.
Academic Article Catalytic Mechanism of Amyloid-ß Peptide Degradation by Insulin Degrading Enzyme: Insights from Quantum Mechanics and Molecular Mechanics Style Møller-Plesset Second Order Perturbation Theory Calculation.
Academic Article Structure-activity relationships of imidazole-derived 2-[N-carbamoylmethyl-alkylamino]acetic acids, dual binders of human insulin-degrading enzyme.
Academic Article The case for developing consensus standards for research in microbial pathogenesis: Bacillus anthracis toxins as an example.
Academic Article Distinct interactions of 2'- and 3'-O-(N-methyl)anthraniloyl-isomers of ATP and GTP with the adenylyl cyclase toxin of Bacillus anthracis, edema factor.
Academic Article Designed inhibitors of insulin-degrading enzyme regulate the catabolism and activity of insulin.
Academic Article The amino terminus of varicella-zoster virus (VZV) glycoprotein E is required for binding to insulin-degrading enzyme, a VZV receptor.
Academic Article Anti-diabetic activity of insulin-degrading enzyme inhibitors mediated by multiple hormones.
Academic Article Anthrax toxins induce shock in rats by depressed cardiac ventricular function.
Academic Article Modulation of the CXC chemokine receptor 4 agonist activity of ubiquitin through C-terminal protein modification.
Academic Article Different Roles of N-Terminal and C-Terminal Domains in Calmodulin for Activation of Bacillus anthracis Edema Factor.
Academic Article Inhibition of the adenylyl cyclase toxin, edema factor, from Bacillus anthracis by a series of 18 mono- and bis-(M)ANT-substituted nucleoside 5'-triphosphates.
Academic Article Noninvasive imaging technologies reveal edema toxin as a key virulence factor in anthrax.
Academic Article Molecular analysis of the interaction of anthrax adenylyl cyclase toxin, edema factor, with 2'(3')-O-(N-(methyl)anthraniloyl)-substituted purine and pyrimidine nucleotides.
Academic Article Anthrax toxins suppress T lymphocyte activation by disrupting antigen receptor signaling.
Academic Article Calcium dependence of the interaction between calmodulin and anthrax edema factor.
Academic Article Reinvestigating the synthesis and efficacy of small benzimidazole derivatives as presequence protease enhancers.
Academic Article Pseudomonas aeruginosa exoenzyme Y directly bundles actin filaments.
Academic Article Structural analysis of Mycobacterium tuberculosis M13 metalloprotease Zmp1 open states.
Concept Adenylyl Cyclase Inhibitors
Concept Protein Domains
Concept Organophosphonates
Concept ortho-Aminobenzoates
Concept Occludin
Concept Nestin
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  • Guanosine
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  • 3
  • Thiotriphosphate