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Thanutchaporn Kumrungsee et al.
Biochimica et biophysica acta, 1840(10), 3073-3078 (2014-08-06)
Tryptophan-histidine (Trp-His) was found to suppress the activity of the Ca²⁺/calmodulin (CaM)-dependent protein kinases II (CaMKII), which requires the Ca²⁺-CaM complex for an initial activation. In this study, we attempted to clarify whether Trp-His inhibits Ca²⁺-CaM complex formation, a CaMKII
Sebastian A Wagner et al.
Molecular & cellular proteomics : MCP, 11(12), 1578-1585 (2012-07-14)
Posttranslational modifications of proteins increase the complexity of the cellular proteome and enable rapid regulation of protein functions in response to environmental changes. Protein ubiquitylation is a central regulatory posttranslational modification that controls numerous biological processes including proteasomal degradation of
G C Cook
Gut, 17(4), 252-257 (1976-04-01)
Using a double-lumen tube jejunal perfusion system in vivo, the mutual effects of carnosine (beta-alanyl-L-histidine) and glycylglycine on their respective absorption rates have been studied in six Zambian African adults. Data on the effect of the constituent amino-acids of carnosine
Daniel H Haft et al.
PloS one, 6(12), e28886-e28886 (2011-12-24)
The rhomboid family of serine proteases occurs in all domains of life. Its members contain at least six hydrophobic membrane-spanning helices, with an active site serine located deep within the hydrophobic interior of the plasma membrane. The model member GlpG
Liyan Hu et al.
Molecular genetics and metabolism, 113(4), 267-273 (2014-11-21)
Carbamoyl phosphate synthetase 1 (CPS1) deficiency due to CPS1 mutations is a rare autosomal-recessive urea cycle disorder causing hyperammonemia that can lead to death or severe neurological impairment. CPS1 catalyzes carbamoyl phosphate formation from ammonia, bicarbonate and two molecules of
Namrata D Udeshi et al.
Molecular & cellular proteomics : MCP, 12(3), 825-831 (2012-12-26)
Detection of endogenous ubiquitination sites by mass spectrometry has dramatically improved with the commercialization of anti-di-glycine remnant (K-ε-GG) antibodies. Here, we describe a number of improvements to the K-ε-GG enrichment workflow, including optimized antibody and peptide input requirements, antibody cross-linking
P B Armentrout et al.
Journal of the American Society for Mass Spectrometry, 23(4), 621-631 (2011-09-29)
We present a full computational description of the fragmentation reactions of protonated diglycine (H(+)GG). Relaxed potential energy surface scans performed at B3LYP/6-31 G(d) or B3LYP/6-311 + G(d,p) levels are used to map the reaction coordinate surfaces and identify the transition states (TSs) and
Cheng-Han Tsai et al.
Biochimica et biophysica acta, 1852(5), 851-861 (2015-01-20)
Cofilin-1, a non-muscle isoform of actin regulatory protein that belongs to the actin-depolymerizing factor (ADF)/cofilin family is known to affect cancer development. Previously, we found that over-expression of cofilin-1 suppressed the growth and invasion of human non-small cell lung cancer
Doori Oh et al.
Chemical communications (Cambridge, England), 47(32), 9137-9139 (2011-07-14)
In a free solution of 10.0 mM Gly-Gly (pH 8.2), the flow directions of native-DNA and DNA molecules intercalated with the fluorescent dye YOYO-1 were reversed in the microchip channel. These results clearly showed that in a confined space and
Koji Yamada et al.
Bioscience, biotechnology, and biochemistry, 76(5), 1035-1037 (2012-06-29)
A hallmark of small ubiquitin-related modifier (SUMO) is the production of a C-terminal tail containing diglycines (GGs), which are believed to be required for SUMOylation. Whether GGs are required components in SUMOylation remains unanswered experimentally. In this study we found
Katharina Papsdorf et al.
BMC genomics, 16, 662-662 (2015-09-04)
Protein aggregation and its pathological effects are the major cause of several neurodegenerative diseases. In Huntington's disease an elongated stretch of polyglutamines within the protein Huntingtin leads to increased aggregation propensity. This induces cellular defects, culminating in neuronal loss, but
Helen Giamarellou et al.
Expert opinion on drug metabolism & toxicology, 7(11), 1459-1470 (2011-10-01)
As the spread of multidrug-resistant (MDR) and extensive drug-resistant (XDR) organisms constitutes a real threat for patients, new antimicrobials are needed. Tigecycline, the first-in-class glycylcycline, possesses an extended spectrum of antimicrobial activity including MDR and XDR organisms, which holds promise
P B Armentrout et al.
Journal of the American Society for Mass Spectrometry, 23(4), 632-643 (2011-09-29)
We present a full molecular description of fragmentation reactions of protonated diglycine (H(+)GG) by studying their collision-induced dissociation (CID) with Xe using a guided ion beam tandem mass spectrometer (GIBMS). Analysis of the kinetic energy-dependent CID cross sections provides the
Daisy Bustos et al.
Molecular & cellular proteomics : MCP, 11(12), 1529-1540 (2012-06-26)
Advances in high resolution tandem mass spectrometry and peptide enrichment technologies have transformed the field of protein biochemistry by enabling analysis of end points that have traditionally been inaccessible to molecular and biochemical techniques. One field benefitting from this research
Molly Moravek et al.
Journal of assisted reproduction and genetics, 29(3), 283-290 (2012-01-17)
To examine potential benefits of dipeptide forms of amino acids for embryo culture by determining ability of dipeptide glycine forms to support embryo development, act as osmolytes, and reduce ammonia production. Frozen thawed 1-cell mouse embryos were cultured in media
Zhe Gao et al.
Biochemical pharmacology, 92(2), 358-368 (2014-09-15)
Strategy on activated T cells is an effective treatment for T cell mediated diseases. By using a synthesized chromone derivative, we examined its effects on the activated T cells. This compound, (Z)-1,3-dihydroxy-9-methyl-13H-benzo[b]chromeno[3,2-f][1,4]oxazepin-13-one (neochromine S5), exhibited immunosuppressive activity in vitro and
Choon Meng Tan et al.
PloS one, 10(2), e0117067-e0117067 (2015-02-04)
XopDXcc8004, a type III effector of Xanthomonas campestris pv. campestris (Xcc) 8004, is considered a shorter version of the XopD, which lacks the N-terminal domain. To understand the functions of XopDXcc8004, in planta, a transgenic approach combined with inducible promoter
Anna-Katharina Wiegers et al.
Journal of virology, 89(1), 361-372 (2014-10-17)
Human cytomegalovirus (HCMV) is an important, ubiquitous pathogen that causes severe clinical disease in immunocompromised individuals, such as organ transplant recipients and infants infected in utero. The envelope glycoprotein B (gB) of HCMV is a major antigen for the induction
Armando Tripodi et al.
European journal of internal medicine, 25(5), 449-451 (2014-05-03)
Statins are cholesterol-lowering agents with antithrombotic effect possibly unrelated to their lipid-lowering properties. Traditional global coagulation tests failed, however, to reveal clinically relevant change after treatment. We therefore sought to investigate whether statins were able to modify thrombin generation in
Ido Azuri et al.
Angewandte Chemie (International ed. in English), 54(46), 13566-13570 (2015-09-17)
Young's moduli of selected amino acid molecular crystals were studied both experimentally and computationally using nanoindentation and dispersion-corrected density functional theory. The Young modulus is found to be strongly facet-dependent, with some facets exhibiting exceptionally high values (as large as
Nicole C Narrandes et al.
BMC microbiology, 15, 22-22 (2015-02-06)
Molybdopterin cofactor (MoCo) biosynthesis in Mycobacterium tuberculosis is associated with a multiplicity of genes encoding several enzymes in the pathway, including the molybdopterin (MPT) synthase, a hetero tetramer comprising two MoaD and two MoaE subunits. In addition to moaD1, moaD2
Francis Impens et al.
Proceedings of the National Academy of Sciences of the United States of America, 111(34), 12432-12437 (2014-08-13)
SUMOylation is an essential ubiquitin-like modification involved in important biological processes in eukaryotic cells. Identification of small ubiquitin-related modifier (SUMO)-conjugated residues in proteins is critical for understanding the role of SUMOylation but remains experimentally challenging. We have set up a
Radha Thyagarajan et al.
Autoimmunity, 48(5), 298-304 (2015-02-25)
The immunoglobulin isotype IgE is commonly associated with allergy. However, its involvement in autoimmune disease in general, and Type 1 diabetes (T1D) in particular, is still not completely clarified, nonetheless IgE has been observed in patients with T1D. In this
Gordon Sproul
Origins of life and evolution of the biosphere : the journal of the International Society for the Study of the Origin of Life, 45(4), 427-437 (2015-08-08)
Researchers have formed peptide bonds under a variety of presumed prebiotic conditions. Here it is proposed that these same conditions would have also formed amide bonds between fatty acids and amino acids, producing phosphate-free amphipathic lipoamino acids and lipopeptides. These
Christopher M Leavitt et al.
Journal of the American Society for Mass Spectrometry, 22(11), 1941-1952 (2011-09-29)
We report vibrational predissociation spectra of the four protonated dipeptides derived from glycine and sarcosine, GlyGlyH(+)•(H(2))(1,2), GlySarH(+)•(D(2))(2), SarGlyH(+)•(H(2))(2), and SarSarH(+)•(D(2))(2), generated in a cryogenic ion trap. Sharp bands were recovered by monitoring photoevaporation of the weakly bound H(2) (D(2)) molecules
Nora Semren et al.
PloS one, 10(9), e0136188-e0136188 (2015-09-05)
Proteasome inhibition has been shown to prevent development of fibrosis in several organs including the lung. However, effects of proteasome inhibitors on lung fibrosis are controversial and cytotoxic side effects of the overall inhibition of proteasomal protein degradation cannot be
Zaheer Ahmed et al.
Plant science : an international journal of experimental plant biology, 233, 95-106 (2015-02-26)
The present study investigated the role of protein phosphorylation, and protein complex formation between key enzymes of amylopectin synthesis, in barley genotypes exhibiting "high amylose" phenotypes. Starch branching enzyme (SBE) down-regulated lines (ΔSBEIIa and ΔSBEIIb), starch synthase (SS)IIa (ssiia(-), sex6)
N Ranjana Devi et al.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 96, 370-379 (2012-06-23)
The interaction of gly-gly with Pr(III) and Nd(III) have been studied in different aquated organic solvents like CH(3)OH, CH(3)CN, dioxane and DMF by using 4f-4f transitions spectra. Various energy interaction parameters like Slater Condon (F(k)), Racah (E(k)), Lande (ξ(4f)), nephelauxetic
Min Jung Kim et al.
Biochemical and biophysical research communications, 456(2), 586-590 (2014-12-10)
Taste-taste interactions often showed in human psychophysical studies. Considering that each tastant in foodstuffs individually stimulates its responsible gustatory systems to elicit relevant taste modalities, taste-taste interaction should be performed in taste receptor cell-based assay. While umami substances have been
Cheng Zhang et al.
The Journal of chemical physics, 136(20), 204113-204113 (2012-06-07)
We present an identity for an unbiased estimate of a general statistical distribution. The identity computes the distribution density from dividing a histogram sum over a local window by a correction factor from a mean-force integral, and the mean force
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