First name,Last name,Preferred title,Overview,Position,Department,Individual
Patricia,Pietrantonio,Professor and Texas AgriLife Research Fellow,"We work with important pests that are critical to Texas and the world focusing on public and animal health and on pests of cotton. We are interested in elucidating the functions of arthropod neuropeptides that signal through G protein-coupled receptors. Many of these neuropeptides are pleiotropic and many of their multiple functions are still unknown. We utilize loss-of-function experiments through RNAi, peptidomimetics, the discovery of antagonists through target-based high-throughput screening of small molecules on recombinant receptors expressed in mammalian cells, immunohistochemistry, and develop physiological in vitro and in vivo assays towards advancing arthropod endocrinology. The laboratory has pioneered the discovery of the first neuropeptide receptor in the Acari and the first insect prostaglandin receptor. The molecular and cell culture laboratories are BL2 and the Insect toxicology laboratory is BL1. We use state-of-the-art technologies and the lab is well equipped to do almost everything in-house.",Professor,Entomology,https://scholars.library.tamu.edu/vivo/display/n0555af9d
Dorothy,Shippen,Professor,"We are taking biochemical, molecular genetic and cytological approaches to study the structure, function and maintenance of telomeres. Telomeres are higher order nucleoprotein complexes that cap the ends of eukaryotic chromosomes and play essential roles in conferring genome stability and cell proliferation capacity. The protective cap of the telomere is comprised of specific telomere binding proteins that regulate the length of telomeric DNA tract and allow the cell distinguish the chromosome terminus from a double-strand break. Telomeric DNA is synthesized by the action of telomerase, an unusual reverse transcriptase that replenishes telomeric DNA lost as a consequence of replication by conventional DNA polymerases. We have developed the genetically tractable flowering plant Arabidopsis thaliana as a model system for studying telomeres in higher eukaryotes. With its sequenced genome, abundant genetic and transgenic tools, and extraordinarily high tolerance to genome instability, Arabidopsis has proven to be an excellent model for investigating fundamental processes in telomere biology. Current studies focus on defining the function and molecular evolution of telomere capping proteins and components of the telomerase ribonucleoprotein complex.",Professor,Biochemistry and Biophysics,https://scholars.library.tamu.edu/vivo/display/n07e86cac
James,Womack,Distinguished Professor,"Comparative mammalian genomics with emphasis on bovids and laboratory animals. Study of evolution of gene families and genomic variation underlying disease resistance. Investigation of genetic mechanisms in innate immunity with focus on livestock, select agents, and agricultural biosecurity.",Distinguished Professor,Veterinary Pathobiology,https://scholars.library.tamu.edu/vivo/display/n0e1a49e2
David,Russell,Professor,"My research focuses on proteomics, lipidomics, biophysical chemistry and application and development of mass spectrometry, such as ""label-free"" nano-particle based biosensors and novel peptide/protein isolation and purification strategies. We are also investigating the structure(s) of model peptides in an effort to better describe folding/unfolding and structure of membrane and intrinsically disordered (IDP) proteins. Peptides take on very different 2?, 3? and 4? structure, which determine or influence bio-activity. In the presence of lipid vesicles peptides can exist as solution-phase species, ""absorbed"" on lipid bilayers or ""inserted"" (as a monomer or multimer) in lipid bilayers. By what mechanism do peptides interact with lipid membranes to affect these structural changes, how do peptide-lipid interactions promote self-assembly to form intermediates that eventually yield aggregates, i.e., amyloid fibrils, or how does metal ion coordination affect the structure of metalloproteins? Mass spectrometry-based experiments, hydrogen/deuterium (H/D) exchange, chemical 'foot-printing' and gas-phase (ion-molecule and ion-ion reaction chemistry) and solution-phase chemical modifications, have expanded our abilities to address such questions, and new instrumental approaches, esp. ion mobility spectrometry (IMS) combined with enhanced molecular dynamics simulations (MDS), have become standard tools for structural-mass spectrometry studies. Over the past several years we have either acquired or developed novel, next-generation IM-MS instruments that are redefining cutting-edge structural-mass spectrometry research as well as cutting-edge computational tools essential to carry out these studies. Our new laboratories in the Interdisciplinary Life Sciences Building (ILSB) provides exciting opportunities for collaborative, interdisciplinary research with chemical-biologists, biochemists and other chemists.",Professor,Chemistry,https://scholars.library.tamu.edu/vivo/display/n280e03e6
Herman,Scholthof,Professor,,Professor,Plant Pathology and Microbiology,https://scholars.library.tamu.edu/vivo/display/n2c6ec1cb
Tadhg,Begley,Distinguished Professor,"The Begley Group is interested in the mechanistic chemistry and enzymology of complex organic transformations, particularly those found on the vitamin biosynthetic pathways. We are currently working on the biosynthesis of thiamin, molybdopterin, pyridoxal phosphate and menaquinone. Our research involves a combination of molecular biology, protein biochemistry, organic synthesis and structural studies and provides a strong training for students interested in understanding the organic chemistry of living systems and in pursuing careers in biotechnology, drug design or academia.
Thiamin pyrophosphate plays a key role in the stabilization of the acyl carbanion synthon in carbohydrate and amino acid metabolism. The biosyntheses of the thiamin pyrimidine and thiazole are complex and are different from any of the characterized chemical or biochemical routes to these heterocycles. We are particularly interested in cellular physiology and the mechanistic enzymology of thiamin biosynthesis. As an example of one of the complex transformations on this pathway, the figure below shows the structure of the pyrimidine synthase catalyzing the complex rearrangement of aminoimidazole ribotide (left) to the thiamin pyrimidine (right).",Distinguished Professor,Chemistry,https://scholars.library.tamu.edu/vivo/display/n498aa35b
Cynthia,Meininger,Professor,"My research focuses primarily on the vascular complications of diabetes. Using animal models of human diabetes, we have demonstrated that an inability of endothelial cells to produce nitric oxide may be partly responsible for these vascular complications. We are developing a gene/drug therapy approach for treating cardiovascular disease associated with diabetes. Targeted nanoparticles will deliver either the gene for GTPCH or BH4 itself into endothelial cells oxidatively damaged by diabetes to correct endothelial GTPCH deficiency, increase tetrahydrobiopterin levels, restore nitric oxide production and reverse the vascular dysfunction seen in diabetes. Our endothelium-targeting nanoparticle approach will not only reverse the damage caused by disease but will increase antioxidant levels to protect the endothelial cells from future damage and/or dysfunction.",Professor,Medical Physiology,https://scholars.library.tamu.edu/vivo/display/n531a623d
Arthur,Laganowsky,Associate Professor,"A long-term research goal of our group is to determine the molecular basis behind protein-lipid interactions and how these interactions can modulate the structure and function of membrane proteins, including their interactions with signaling molecules. What determines the selectivity of membrane proteins towards lipids, and the coupling between lipid binding events and function remains a key knowledge gap in the field; one that if addressed will significantly advance our understanding of how lipids participate in both normal and pathophysiological processes of membrane proteins. Therefore, there is a critical need to expand our fundamental knowledge in this emerging field by applying and developing innovative approaches to elucidate how lipids modulate the structure function of membrane proteins. To this end, we are studying a number of ion channels, receptors and other types of membrane proteins.",Associate Professor,Chemistry,https://scholars.library.tamu.edu/vivo/display/n542411e4
Joshua,Wand,Professor and Department Head,"We are broadly interested in how the biophysical properties of proteins are manifested in their biological function. We are particularly engaged in trying to reveal the nature of internal protein motion and how this influences functions ranging from molecular recognition to allostery and catalysis. These basic ideas are being employed in a range of studies including protein engineering to optimize protein drugs, reverse micelle encapsulation to aid fragment-based drug discovery, understanding the regulation of Parkin, which is involved in mitophagy and early onset Parkinson's Disease, and the enzyme AKR1C3, which is central to resistant forms of prostate cancer.",Professor and Department Head,Biochemistry and Biophysics,https://scholars.library.tamu.edu/vivo/display/n6caf5ddd
Frances,Ligler,Professor,,Professor,Biomedical Engineering,https://scholars.library.tamu.edu/vivo/display/n74321a1f
Roderick,Dashwood,University Distinguished Professor,"Research integrates multiomic, genetic, epigenetic and immune approaches for precision oncology. Epigenetic readers, writers and erasers that reversibly regulate immune players in the antigen presentation pathway are of current mechanistic interest. Molecular and cell-based assays are combined with preclinical models coupled to polypectomy. Clinical specimens and organoids from patients undergoing colectomy provide for human translation. Supported by the NCI, NINDS/NIA, and the John S. Dunn Foundation.",John S. Dunn Chair in Disease Prevention||Distinguished Professor||Director,Institute of Biosciences and Technology||Center for Epigenetics and Disease Prevention||School of Medicine,https://scholars.library.tamu.edu/vivo/display/n7a63dbe7
Fuller,Bazer,Distinguished Professor,"Dr. Bazer's research in reproductive biology focuses on uterine biology and pregnancy, particularly pregnancy recognition signaling from the conceptus to the maternal uterus by interferon tau and estrogen from ruminant and pig conceptuses, respectively. The roles of uterine secretions as transport proteins, regulatory molecules, growth factors and enzymes and endocrine regulation of their secretion is another major research interest. The endocrinology of pregnancy, especially the roles of lactogenic and growth hormones in fetal-placental development and uterine functions are being studied. The mechanism(s) of action and potential therapeutic value of conceptus interferons and uterine-derived hematopoietic growth factors are areas of research with both pigs and sheep as models for human disease.",Distinguished Professor,Animal Science,https://scholars.library.tamu.edu/vivo/display/n7ad91d50
Rosemary,Walzem,Professor,"Dr. Walzem's core research focus within the laboratory is directed towards understanding how the structure of triglyceride-rich lipoproteins influences their ability to carry out specific nutrient delivery tasks. Her studies include identification of mechanisms and regulatory processes that control the assembly of trigylceride-rich lipoproteins in issues, structural studies of lipoproteins themselves and physiological studies to determine substrate properties and metabolic fates of different types of lipoproteins. Diet can significantly alter lipoprotein physiology through multiple mechanisms, and studies of diet effects provides a significant sub-theme to the research program. A variety of species are used to address specific questions, however, avian and human lipoprotein metabolism as it relates to egg production and atherogenesis, respectively, are emphasized.",Professor,Poultry Science,https://scholars.library.tamu.edu/vivo/display/n85cd191f
Daniel,Ebbole,Professor,"Development and pathogenesis share the common features of responding to environmental conditions to execute a program of gene expression resulting in new cell types.
An important question in plant pathogenesis is to understanding the functions of pathogen effectors and their host target(s). Fungal effectors play roles in suppressing host defense mechanisms, however, other biotrophic functions, such as manipulating host physiology to promote nutrient acquisition and cell-to-cell movement are possible. Therefore, identification of the full set of fungal proteins secreted during host invasion is a major effort in plant pathology research. Candidate effectors are generally identified by virtue of i) their expression in planta ii) assessing their activity on the host using purified proteins or by manipulating expression iii) detecting the rapid evolution of effector genes due to selective pressure from the host. My lab is using a combination of these approaches to identify and characterize a gene family of putative effectors from Magnaporthe oryzae, the rice blast fungus and define interactions with monocot hosts.",Professor,Plant Pathology and Microbiology,https://scholars.library.tamu.edu/vivo/display/n86da3f1b
Jodie,Lutkenhaus,Professor,"Dr. Lutkenhaus's lab explores polymers for plastic power, enabling flexible or structural batteries and capacitors, as well as polyelectrolytes, which are integral components in smart surfaces and coatings.",Professor,Chemical Engineering,https://scholars.library.tamu.edu/vivo/display/na0bd3380
Karen-Beth,Scholthof,Professor,"My molecular plant virology research is on a virus complex of Panicum mosaic virus (PMV) and its satellite virus (SPMV). For molecular genetic studies on the PMV/SPMV virus:host interactions we are using the model grass, Brachypodium distachyon. My primary area of research is the historiography of Tobacco mosaic virus (TMV) in the early 20th century in the United States.",Professor,Plant Pathology and Microbiology,https://scholars.library.tamu.edu/vivo/display/na173b2b4
Frank,Raushel,Distinguished Professor,"Enzymes catalyze a remarkable variety of chemical reactions with extremely high rate enhancements and very selective substrate specificity. The research efforts in our laboratory are directed towards a more complete understanding of the fundamental principles involved in enzyme-catalyzed chemistry and the dependence on protein structure. The pursuit of this information will provide the framework for the rational and combinatorial redesign of these complex molecules in an effort to exploit and develop the properties of enzyme active sites for a variety of chemical, biological, and medicinal uses. The techniques that we are using to solve these problems include steady-state and stopped-flow kinetics, NMR and EPR spectroscopy, X-ray crystallography, and the synthesis of inhibitors and suicide substrates. We are also using recombinant DNA methods to construct new proteins with novel catalytic properties. These efforts are currently being directed to the reactions catalyzed by phosphotriesterase and enzymes involves in the degradation of lignin and the metabolism of novel carbohydrates from the human gut microbiome.
The phosphotriesterase enzyme catalyzes the hydrolysis of organophosphate insecticides and other toxic organophosphate nerve agents. We have discovered that the active site of this protein consists of a unique binuclear metal center for the activation of water. We are now investigating the structure and properties of this metal center as a model system for the evolution of enzyme structure and function. Toward this end we have mutated the active site of this enzyme in a research project to create novel enzymes with the ability to detect, destroy, and detoxify various chemical warfare agents such as sarin, soman, and VX. The Raushel laboratory is also engaged in a large scale research project that is focused on the development of novel strategies for the discovery of new enzymes.",Distinguished Professor,Chemistry,https://scholars.library.tamu.edu/vivo/display/na84f2fec
Stephen,Safe,Distinguished Professor,The aryl hydrocarbon receptor (AhR) is a nuclear helix-loop-helix transcription factor which forms a ligand-induced nuclear heterodimer with the AhR nuclear translocator (Arnt) protein. Research in this laboratory is focused on the molecular mechanism of crosstalk between the AhR and estrogen receptor (ER) signaling pathways in which the AhR inhibits estrogen-induced gene expression. The antiestrogenic activities of some AhR agonists are also being developed as drugs for clinical treatment of breast and endometrial cancers in women. Research on estrogen-dependent gene expression in various cancer cell lines is focused on analysis of several gene promoters to determine the mechanisms of ERa and ERb action. This includes several genes that are activated through interactions of the ER with Sp1 protein and other DNA-bound transcription factors.,Distinguished Professor||Distinguished Professor||Syd Kyle Chair,School of Veterinary Medicine and Biomedical Sciences||Biochemistry and Biophysics||Veterinary Physiology and Pharmacology,https://scholars.library.tamu.edu/vivo/display/nb20fdbd9
Charles,Patrick,Professor of the Practice,"His current research within the Ideas to Innovation Engineering Education Excellence Laboratory focuses on enhancing undergraduate and graduate student learning, engagement and workforce development by transforming biomedical engineering education through scholarship and research of innovative teaching and learning practices and technologies.",Professor of the Practice,Biomedical Engineering,https://scholars.library.tamu.edu/vivo/display/nb2ed7577
Deborah,Siegele,Associate Professor,"Phenotypes are observable characteristics of an organism that result from the expression of a particular genotype in a particular environment. Examples of phenotypic traits in microbes are motility, sporulation, ability to perform anaerobic respiration, and resistance/sensitivity to an antibiotic.
Until recently, phenotypic information has been captured as free text descriptions in research papers. Ambiguities in natural language confound attempts to retrieve information across sources. For example, ""serotype"" and ""serovar"" both refer to the same phenotype, but a simple text-based query with either word alone would miss the other. Or a single term, such as ""sporulation"" is used to refer to multiple, distinct processes in different organisms. Issues such as these hamper the ability to integrate different phenotypic data sets for the same organism or to use phenotypic information in one organism to predict possible phenotypes in another organism. Ideally, phenotype information should be stored in a consistent, computable format for ease of data integration and mining.
Controlled vocabularies are used to provide both consistent terminology and a structured data format for the capture of biological information. Ontologies are controlled vocabularies of defined terms with unique identifiers and precise relationships to each other. There are phenotype ontologies available for many eukaryotic organisms, including fungi. However, when the OMP project was initiated, none of the existing ontologies was appropriate to comprehensively capture phenotypes for Bacteria or Archaea or to enable comparisons across microbial taxa.
The Siegele lab and our collaborators at TAMU and the Univ. of Maryland (IGS) are developing a formal Ontology of Microbial Phenotypes (OMP). Our lab is focused on term development and annotating microbial phenotypes. OMP can be accessed at microbialphenotypes.org. Releases of OMP are available at github.com/microbialphenotypes.",Associate Professor,Biology,https://scholars.library.tamu.edu/vivo/display/ne333d587
Hays,Rye,Associate Professor,"A fundamental principle of biology is the use of chemical energy in the form of ATP to assemble, disassemble and alter macromolecular structure. Specialized control proteins known as molecular chaperones are often responsible for this activity and have been recognized in recent years to be essential for regulating many aspects of cellular biology. Using a variety of biophysical and biochemical techniques, the Rye lab focuses on three fundamental cellular processes that require molecular chaperones: (1) protein folding (2) protein disaggregation and (3) vesicle trafficking. In each of these cases, large quantities ATP are burned, resulting in molecular organization in the case of protein folding, and molecular disassembly and remodeling in the case of protein disaggregation and vesicle trafficking. We are interested in understanding the detailed biophysical mechanisms that underpin these events. Why are these processes so energetically expensive? Are there any similarities in how the energy is used between these very different molecular processes? Are there general principles of energy transduction in biology that can be gleaned by comparing these examples with other molecular machines, such as cytoskeletal motors? Understanding how molecular chaperones control protein and membrane organization will provide key insights into not only basic cell biology, but will also illuminate aspects of many diseases that spring from aberrant protein and membrane dynamics.",Associate Professor,Biochemistry and Biophysics,https://scholars.library.tamu.edu/vivo/display/ne7fb85e1
Ryland,Young,Professor,"Most bacterial viruses (phages) cause lysis of their host cell to release the progeny virions. Large phages elaborate an enzyme (""endolysin"") to degrade the cell wall and also a small membrane protein (""holin""). The holin accumulates in the membrane and then, at a precisely scheduled time, suddenly forms a hole to allow release of endolysin through the cytoplasmic membrane to gain access to the wall. We use molecular genetics and biochemistry to study how this small protein is able to act as a molecular ""clock"" and punch holes in membranes. Small phages make single proteins which cause host lysis in a different way. This strategy is to target the host cell wall synthesis machinery; that is, the virus makes a ""protein antibiotic"" that causes lysis in the same way as antibiotics like penicillin by inhibiting an enzyme in the multi-step pathway of murein biosynthesis. Thus, when the infected cell tries to divide, it blows up, or lyses, because it can't make the new cell wall between the daughter cells. Remarkably, each of three different, small phages blocks a different step in the pathway. These small lysis proteins are models for a completely new class of antibacterial antibiotics. Also, the E. coli SlyD protein is required for this mode of lysis in one case. SlyD is a member of an ubiquitous family of proteins related to human ""immunophilins,"" the targets of immune-suppression drugs. We study SlyD to learn about the role of this class of proteins in biology.",Professor,Biochemistry and Biophysics,https://scholars.library.tamu.edu/vivo/display/nea775348
John,Mullet,Professor,"Functional genomics, bioinformatics, and DNA chip technology are fundamentally changing research on biological systems. Knowledge of complete genome sequences and high resolution genome technology provide an extraordinary opportunity to understand complex biological processes and to relate detailed understanding of protein structure and biochemical mechanism to the function of whole organisms and biological systems in nature.
Our research team is helping to build genome maps and DNA diagnostic microarrays/chips for analysis of global gene expression and biodiversity. This new technology is being used to explore the molecular basis of several fundamental plant responses: (1) light responsive genetic systems that help protect plants from damage by high intensity UV/blue light; (2) genetic systems that allow plants to adapt to the environment; (3) genes and signal transduction pathways that help protect plants from insects and disease; and (4) genes that regulate plant development (flowering time, fertility restoration, chloroplast development/number).",Professor,Biochemistry and Biophysics,https://scholars.library.tamu.edu/vivo/display/nf1c81fcb
Randall,Davis,Regents Professor,"Randall William Davis is an educator and researcher who studies the physiology and behavioral ecology of marine mammals and other aquatic vertebrates. His physiological research focuses on adaptations of marine mammals for deep, prolonged diving. Davis has continually emphasized the importance of studying aquatic animals in their natural environment and has spent many years developing animal-borne instruments that record video and monitor three-dimensional movements, swimming performance and environmental variables to better understand their behavior and ecology. His academic endeavors and 100 research expeditions have taken him to 65 countries and territories on seven continents and all of the world's oceans.
https://en.wikipedia.org/wiki/Randall_William_Davis",Regents Professor||Regents Professor,"Rangeland, Wildlife and Fisheries Management||Wildlife and Fisheries Sciences||Marine Biology",https://scholars.library.tamu.edu/vivo/display/nf5158696
Darwin,Prockop,Professor,,Professor,Cell Biology and Genetics,https://scholars.library.tamu.edu/vivo/display/nfcfd0990
Magnus,Hook,Professor,"The primary interest of our laboratory is to try to understand the structural function of the extracellular matrix. Of particular interest is the study of the molecular mechanisms of microbial adhesion to host tissue. This process, which is believed to represent a critical initial step in the development of infections, involves specific cell-surface proteins that recognize and bind with a high affinity to components in the host tissue. Our goal is to decipher these events at a molecular level and, based on structural analysis of the interacting components, design new strategies to prevent and treat infections.",Regents & Distinguished Professor and Director,Center for Infectious and Inflammatory Diseases,https://scholars.library.tamu.edu/vivo/display/nfd8d37d6