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- Chemistry (7)
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Articles 1 - 9 of 9
Full-Text Articles in Physical Sciences and Mathematics
Rfx2 Is A Candidate Downstream Amplifier Of A-Myb Regulation In Mouse Spermatogenesis, Gary C. Horvath, Malathi K. Kistler, Wilson Stephen Kistler
Rfx2 Is A Candidate Downstream Amplifier Of A-Myb Regulation In Mouse Spermatogenesis, Gary C. Horvath, Malathi K. Kistler, Wilson Stephen Kistler
Faculty Publications
Background: Mammalian spermatogenesis involves formation of haploid cells from the male germline and then a complex morphological transformation to generate motile sperm. Focusing on meiotic prophase, some tissue-specific transcription factors are known (A-MYB) or suspected (RFX2) to play important roles in modulating gene expression in pachytene spermatocytes. The current work was initiated to identify both downstream and upstream regulatory connections for Rfx2.
Results: Searches of pachytene up-regulated genes identified high affinity RFX binding sites (X boxes) in promoter regions of several new genes: Adam5, Pdcl2, and Spag6. We confirmed a strong promoter-region X-box for Alf, a germ cell-specific variant of …
Wavepacket Approach To The Cumulative Reaction Probability Within The Flux Operator Formalism, Sophya Garashchuk, Tijo Vazhappilly
Wavepacket Approach To The Cumulative Reaction Probability Within The Flux Operator Formalism, Sophya Garashchuk, Tijo Vazhappilly
Faculty Publications
Expressions for the singular flux operator eigenfunctions and eigenvalues are given in terms of the Dirac δ-function representable as a localized Gaussian wavepacket. This functional form enables computation of the cumulative reaction probability N(E) from the wavepacket time-correlation functions. The Gaussian based form of the flux eigenfunctions, which is not tied to a finite basis of a quantum-mechanical calculation, is particularly useful for approximate calculation of N(E) with the trajectory based wavepacket propagation techniques. Numerical illustration is given for the Eckart barrier using the conventional quantum-mechanical propagation and the quantum trajectory dynamics with the approximate quantum potential. N(E) converges with …
Succination Of Thiol Groups In Adipose Tissue Proteins In Diabetes: Succination Inhibits Polymerization And Secretion Of Adiponectin, Norma Frizzell, Mathur Rajesh, Matthew J. Jepson, Ryoji Nagai, James A. Carson, Suzanne R. Thorpe, John W. Baynes
Succination Of Thiol Groups In Adipose Tissue Proteins In Diabetes: Succination Inhibits Polymerization And Secretion Of Adiponectin, Norma Frizzell, Mathur Rajesh, Matthew J. Jepson, Ryoji Nagai, James A. Carson, Suzanne R. Thorpe, John W. Baynes
Faculty Publications
S-(2-Succinyl)cysteine (2SC) is formed by reaction of the Krebs cycle intermediate fumarate with cysteine residues in protein, a process termed succination of protein. Both fumarate and succination of proteins are increased in adipocytes cultured in high glucose medium (Nagai, R., Brock, J. W., Blatnik, M., Baatz, J. E., Bethard, J., Walla, M. D., Thorpe, S. R., Baynes, J. W., and Frizzell, N. (2007) J. Biol. Chem. 282, 34219-34228). We show here that succination of protein is also increased in epididymal, mesenteric, and subcutaneous adipose tissue of diabetic (db/db) mice and that adiponectin is a major target for succination in both …
Cardiac And Renal Function Are Progressively Impaired With Aging In Zucker Diabetic Fatty Type Ii Diabetic Rats, John W. Baynes, David B. Murray
Cardiac And Renal Function Are Progressively Impaired With Aging In Zucker Diabetic Fatty Type Ii Diabetic Rats, John W. Baynes, David B. Murray
Faculty Publications
This study investigated the temporal relationship between cardiomyopathy and renal pathology in the type II diabetic Zucker diabetic fatty (ZDF) rat. We hypothesized that changes in renal function will precede the development of cardiac dysfunction in the ZDF rat. Animals (10 weeks old) were divided into four experimental groups: Lean Control (fa/?) LC(n = 7), untreated ZDF rats (n = 7) sacrificed at 16 weeks of age, and LC (n = 7) untreated ZDF rats (n = 9) sacrificed at 36 weeks of age. LV structural/functional parameters were assessed via Millar conductance catheter. Renal function was evaluated via markers of …
Controlled Assembly Of Rodlike Viruses With Polymers, Tao Li, Laying Wu, Nisaraporn Suthiwangcharoen, Michael A. Bruckman, Dayton Cash, Joan S. Hudson, Soumitra Ghoshroy, Qian Wang
Controlled Assembly Of Rodlike Viruses With Polymers, Tao Li, Laying Wu, Nisaraporn Suthiwangcharoen, Michael A. Bruckman, Dayton Cash, Joan S. Hudson, Soumitra Ghoshroy, Qian Wang
Faculty Publications
A practical method to assemble rodlike tobacco mosaic virus and bacteriophage M13 with polymers was developed, which afforded a 3D core–shell composite with morphological control.
Mammaglobin As A Potential Molecular Target For Breast Cancer Drug Delivery, Lian Zuo, Ly Li, Qian Wang, Timothy P. Fleming, Shaojin You
Mammaglobin As A Potential Molecular Target For Breast Cancer Drug Delivery, Lian Zuo, Ly Li, Qian Wang, Timothy P. Fleming, Shaojin You
Faculty Publications
Background Mammaglobin (MAM) has been used as a specific molecular marker for breast cancer diagnosis. Recently, several groups of researchers proposed a number of therapeutic strategies targeting this molecule. Some of the strategies are based upon an essential but not demonstrated hypothesis - mammaglobin is associated with the surface of breast cancer cells, which strongly disputes the therapeutic strategies. Results We conducted a computer-based predictive analysis and identified a small fragment at the N-end of MAM as a potential transmembrane domain. We provided several evidences to demonstrate the presence of the membrane-associated MAM. We isolated the membrane protein components from …
Tobacco Mosaic Virus Templated Synthesis Of One Dimensional Inorganic–Polymer Hybrid Fibres, Jianhua Rong, Fiona Oberbeck, Xinnan Wang, Xiaodong Li, Jerry Oxsher, Zhongwei Niu, Qian Wang
Tobacco Mosaic Virus Templated Synthesis Of One Dimensional Inorganic–Polymer Hybrid Fibres, Jianhua Rong, Fiona Oberbeck, Xinnan Wang, Xiaodong Li, Jerry Oxsher, Zhongwei Niu, Qian Wang
Faculty Publications
Inorganic–polymer hybrid nanofibres were prepared by using a rod-like tobacco mosaic virus (TMV) as a template. With tetraethylorthosilicate (TEOS) as a precursor, long silica-coated TMVfibres were formed via a head-to-tail assembly, which showed a substantial increase of the elastic modulus. Furthermore, homogenous titania–TMV hybrid fibres could be prepared using polyaniline-coated TMV fibres as a template, which were used to form a composite film that was able to sense liquefied petroleum gases.
Tetraquabis(5-Fluorosaccharinato)Nickel(Ii), Larnelle Peterson, Jennifer Kelley, Leroy Peterson Jr., Mark D. Smith, Hans-Conrad Zur Loye
Tetraquabis(5-Fluorosaccharinato)Nickel(Ii), Larnelle Peterson, Jennifer Kelley, Leroy Peterson Jr., Mark D. Smith, Hans-Conrad Zur Loye
Faculty Publications
In the centrosymmetric title complex, [Ni(C7H3FNO3S)2(H2O)4], the NiII atom exhibits a slightly distorted trans-NiN2O4 octahedral coordination. The nitrogen donors are provided by two 5-fluorosaccharinate ligands and the oxygen donors are provided by four water molecules. The crystal structure features O-HO and bifurcated O-H(F,O) hydrogen bonds, the latter involving the F atom of the 5-fluorosaccharinate ligand.
Diaquabis(5-Fluoro-2-Hydroxybenzoato-Κo1)Zinc(Ii), Diana Rishmawi, Jennifer Kelley, Mark D. Smith, Leroy Peterson, Hans-Conrad Zur Loye
Diaquabis(5-Fluoro-2-Hydroxybenzoato-Κo1)Zinc(Ii), Diana Rishmawi, Jennifer Kelley, Mark D. Smith, Leroy Peterson, Hans-Conrad Zur Loye
Faculty Publications
The title compound, [Zn(C7H4FO3)2(H2O)2], is a monomeric ZnII complex. The ZnII atom, which lies on a twofold rotation axis, is situated in a distorted tetrahedral environment composed of two monodentate carboxlyate O atoms and two water O atoms. O-HO hydrogen bonds link these units, forming sheets that are stacked along the c axis.