Quantification of D-amino acids in human urine using GC-MS and HPLC.

abstract：:In this work, we describe the asymmetric synthesis of a series of fluorinated and non-fluorinated quaternary α-amino acid derivatives. This methodology involves the diastereoselective addition of chiral 2-p-tolylsulfinyl benzylcarbanions to either imines containing a 2-furyl moiety or trifluoromethyl α-imino esters. S...

journal_title：Amino acids

authors： Fustero S,Sánchez-Roselló M,Báez C,Del Pozo C,García Ruano JL,Alemán J,Marzo L,Parra A

更新日期：2011-08-01 00:00:00

abstract：:The specific function of putative cut2 protein (or CFP25), encoded by the Rv2301 gene from Mycobacterium tuberculosis H37Rv, has not been identified yet. The aim of this study was to assess some of CFP25 characteristics and its possible biological role in Mycobacterium tuberculosis H37Rv invasion process to target cel...

journal_title：Amino acids

authors： Ocampo M,Rodríguez DM,Curtidor H,Vanegas M,Patarroyo MA,Patarroyo ME

更新日期：2012-06-01 00:00:00

abstract：:Among the large family of cyclodepsipeptides, the simplest members are the cyclodidepsipeptides which have an ester group and an amide group in the same six-membered ring. To point out the pharmacological potential of this class of compounds, the present article reviews structure, isolation, synthesis and biological p...

journal_title：Amino acids

authors： Smelcerovic A,Dzodic P,Pavlovic V,Cherneva E,Yancheva D

更新日期：2014-04-01 00:00:00

abstract：:Transglutaminases are a family of enzymes which show the common capacity to catalyse the cross-linking of protein substrates. Some members of this family of enzymes are also capable to catalyse other chemical reactions for the cell life. The distribution and the role of these enzymes have been studied in numerous cell...

journal_title：Amino acids

authors： Pepe I,Occhino E,Cella G,Luongo A,Guardascione F,Gentile V

更新日期：2004-07-01 00:00:00

abstract：:Cell-penetrating peptides, a group of short peptides, can traverse cell membranes to enter cells and thus facilitate the uptake of various molecular cargoes. Thus, they have the potential to become powerful drug delivery systems. The correct identification of peptides as cell-penetrating or non-cell-penetrating would ...

journal_title：Amino acids

authors： Chen L,Chu C,Huang T,Kong X,Cai YD

更新日期：2015-07-01 00:00:00

abstract：:The cellular amino acid composition of plant cells was analyzed. The callus of carrot (Daucus carota), leaves of Torenia fournieri and protocomb-like body of Cymbidium, s.p. were examined as examples of plant cells. The cellular amino acid compositions differed in the plant cells, but their basic patterns were quite s...

journal_title：Amino acids

authors： Sorimachi K,Okayasu T,Akimoto K,Niwa A

更新日期：2000-01-01 00:00:00

abstract：:Proline dehydrogenase/oxidase (PRODH/POX) is a mitochondrial protein critical to multiple stress pathways. Because of the roles of PRODH/POX in signaling, and its shared localization to the mitochondrial inner membrane with the electron transport chain (ETC), we investigated whether there was a direct relationship bet...

journal_title：Amino acids

authors： Hancock CN,Liu W,Alvord WG,Phang JM

更新日期：2016-03-01 00:00:00

abstract：:Glutamate is stored in synaptic vesicles in presynaptic neurons. It is released into the synaptic cleft to provide signalling to postsynaptic neurons. Normally, the astroglial glutamate transporters GLT-1 and GLAST take up glutamate to mediate a high signal-to-noise ratio in the synaptic signalling, and also to preven...

journal_title：Amino acids

authors： Persson M,Rönnbäck L

更新日期：2012-01-01 00:00:00

abstract：:How to enhance fruit tolerance to cold stress is an important biological interest. In this paper, we found that mango (Mangifera indica L.) fruit treated with 10 μM brassinolide (BL) showed a higher tolerance to cold temperature of 5 °C. Further, we compared the changes in expression profiles of plasma membrane (PM) p...

journal_title：Amino acids

authors： Li B,Zhang C,Cao B,Qin G,Wang W,Tian S

更新日期：2012-12-01 00:00:00

abstract：:Subcellular localization is an important protein property, which is related to function, interactions and other features. As experimental determination of the localization can be tedious, especially for large numbers of proteins, a number of prediction tools have been developed. We developed the PROlocalizer service t...

journal_title：Amino acids

authors： Laurila K,Vihinen M

更新日期：2011-03-01 00:00:00

abstract：:Polyamines, oxidized by serum amine oxidase, yield aminoaldehydes and hydrogen peroxide. Acrolein may be formed from the aminoaldehydes by a spontaneous beta-elimination process. These oxidation products "oxidized polyamines" inhibit bacterial growth and exhibit anticancer activity. The antimicrobial activity of oxidi...

journal_title：Amino acids

authors： Bachrach U

更新日期：2007-08-01 00:00:00

abstract：:In the article (Romek et al. 2013) we reported the values of δ15N (‰) and δ13C (‰) obtained by. ...

journal_title：Amino acids

authors： Romek KM,Julien M,Frasquet-Darrieux M,Tea I,Antheaume I,Hankard R,Robins RJ

更新日期：2018-01-01 00:00:00

abstract：:L-tryptophan is an essential amino acid in food, but is also widely used as a drug on the basis of several physiological actions. Lately, tryptophan's uses as a drug and as a food supplement have been discontinued in several countries due to its severe side-effects.In the present study, the distribution of tryptophan ...

journal_title：Amino acids

authors： Sainio EL,Närvänen S,Sainio P,Tuohimaa P

更新日期：1995-06-01 00:00:00

abstract：:Detailed knowledge of the composition of protein complexes is crucial for the understanding of their structure and function; however, appropriate techniques for compositional analyses of complexes largely rely on elaborate tagging, immunoprecipitation, cross-linking and purification strategies. The proteasome is a pro...

journal_title：Amino acids

authors： Sessler N,Krug K,Nordheim A,Mordmüller B,Macek B

更新日期：2012-09-01 00:00:00

abstract：:3-Hydroxyaspartic acid and its derivatives are found both in the free form and as peptide constituents in various microorganisms and fungi. Considering the biological importance of this amino acid and its potential utility as a multifunctional building block in organic syntheses, we have developed a short-step, asymme...

journal_title：Amino acids

authors： Khalaf JK,Datta A

更新日期：2008-08-01 00:00:00

abstract：:Granulocyte-colony stimulating factor stimulates production and antibacterial function of neutrophiles. Therapy using the recombinant protein drug represents a major step forward in oncology. The protein has not been, however, completely sequenced at the protein level and this formed the rationale of the current study...

journal_title：Amino acids

authors： Ahmed KE,Chen WQ,John JP,Kang SU,Lubec G

更新日期：2010-04-01 00:00:00

abstract：:Taurine can protect against cardiovascular diseases, whereas elevated levels of plasma homocysteine are associated with atherosclerotic and thromboembolic cardiovascular diseases. To illustrate the effects of taurine on hyperhomocysteinemia, we observed the myocardial mitochondria dysfunction in the rats with hyperhom...

journal_title：Amino acids

authors： Chang L,Xu J,Yu F,Zhao J,Tang X,Tang C

更新日期：2004-08-01 00:00:00

abstract：:Dietary polyamines and amino acids (AAs) are crucial for human growth, development, reproduction, and health. However, the scientific literature shows large variations in polyamine and AA concentrations among major staple foods of plant origin, and there is a scarcity of information regarding their complete compositio...

journal_title：Amino acids

authors： Hou Y,He W,Hu S,Wu G

更新日期：2019-08-01 00:00:00

abstract：:Transglutaminases (TGs) are a large family of related and ubiquitous enzymes that catalyze the cross-linking of a glutaminyl residue of a protein/peptide substrate to a lysyl residue of a protein/peptide co-substrate. Considerable and intense progress has been made in the understanding of the chemistry, molecular biol...

journal_title：Amino acids

authors： Tabolacci C,Lentini A,Provenzano B,Beninati S

更新日期：2012-02-01 00:00:00

abstract：:The lysine catabolism pathway differs in adult mammalian brain from that in extracerebral tissues. The saccharopine pathway is the predominant lysine degradative pathway in extracerebral tissues, whereas the pipecolate pathway predominates in adult brain. The two pathways converge at the level of ∆(1)-piperideine-6-ca...

journal_title：Amino acids

authors： Hallen A,Jamie JF,Cooper AJ

更新日期：2013-12-01 00:00:00

abstract：:As the population of elderly people is growing rapidly, the number of individuals with dementia and cognitive impairment is also increasing. One of the preventive measures against cognitive decline is diet and different dietary factors have already been investigated. This review provides an overview of studies on diet...

journal_title：Amino acids

authors： van de Rest O,van der Zwaluw NL,de Groot LC

更新日期：2013-11-01 00:00:00

abstract：:Phenylketonuria (PKU) is an autosomal recessive genetic disease caused by the defects in the phenylalanine hydroxylase (PAH) gene. Individuals homozygous for defective PAH alleles show elevated levels of systemic phenylalanine and should be under strict dietary control to reduce the risk of neuronal damage associated ...

journal_title：Amino acids

authors： Ikeda K,Schiltz E,Fujii T,Takahashi M,Mitsui K,Kodera Y,Matsushima A,Inada Y,Schulz GE,Nishimura H

更新日期：2005-11-01 00:00:00

abstract：:This study tested the hypothesis that L-arginine (Arg) may stimulate cell proliferation and prevent lipopolysaccharide (LPS)-induced death of intestinal cells. Intestinal porcine epithelial cells (IPEC-1) were cultured for 4 days in Arg-free Dulbecco's modified Eagle's-F12 Ham medium (DMEM-F12) containing 10, 100 or 3...

journal_title：Amino acids

authors： Tan B,Yin Y,Kong X,Li P,Li X,Gao H,Li X,Huang R,Wu G

更新日期：2010-04-01 00:00:00

abstract：:The purpose of this study was to investigate H(e) concentration in plasma from 80 healthy donors in relation to age (6 newborns are also included), sex, daily variation (9, 11 a.m.; 2, 6, 12 p.m.) and a period of 5 subsequent months. A significant correlation (r = 0.63, p < 0.001) was observed between plasma H(e) and ...

journal_title：Amino acids

authors： Fermo I,De Vecchi E,D'Angelo SV,D'Angelo A,Paroni R

更新日期：1993-02-01 00:00:00

abstract：:The regulation of the expression of indoleamine 2,3-dioxygenase (IDO) was studied in cloned murine macrophages (MT2) and microglial (N11) cells. Both cell lines express IDO and inducible nitric oxide synthase activity after interferon-gamma (IFN-gamma) stimulation. The regulation of IDO expression appears to differ in...

journal_title：Amino acids

authors： Alberati-Giani D,Cesura AM

更新日期：1998-01-01 00:00:00

abstract：:Starting from a chiral 4-hydroxymethyl pyrrolidin-2-one, an isostere of α-methyl homoserine tethered on a γ-lactam ring was prepared exploiting a stereoselective acylation-methylation sequence, followed by Curtius rearrangement, and structural assignment was confirmed by n.O.e. experiments. By reverting the sequence, ...

journal_title：Amino acids

authors： Civitavecchia A,Martelli G,Orena M,Rinaldi S

更新日期：2014-04-01 00:00:00

abstract：:Anticancer peptides (ACPs) are biologically anticancer active molecules that are produced by mammals, plants, insects and microorganisms. Here, a new peptide (TC22) with the amino acid sequence MTVVLLLIVLPLLGGVHSSGIL was identified and characterized from the beetle Tribolium castaneum. We found it inhibited the growth...

journal_title：Amino acids

authors： Liu XD,Zhang FX,Qin ZH,Shan H

更新日期：2019-02-01 00:00:00

abstract：:Glycyl-L-proline (gly-pro) is an end product of collagen metabolism that is further cleaved by prolidase (EC 3.4.13.9); the resulting proline molecules are recycled into collagen or other proteins. We postulated a relationship between defective gly-pro hydrolysis, increased collagen degradation and skin destruction. T...

journal_title：Amino acids

authors： Le J,Perier C,Peyroche S,Rascle F,Blanchon MA,Gonthier R,Frey J,Chamson A

更新日期：1999-01-01 00:00:00

abstract：:Treatment of developing rats with monosodium glutamate (MSG) produces an increase of glutamate levels in the brain, being this elevation dependent on both route of administration and animal's age. The capacity of exogenous MSG to induce convulsions seems to be related to the rate of glutamate elevation in the brain, r...

journal_title：Amino acids

authors： Peñafiel R,Cremades A,Monserrat F,Puelles L

更新日期：1991-02-01 00:00:00

abstract：:Formalin-fixed paraffin-embedded (FFPE) tissues are a real treasure for retrospective analysis considering the amount of samples present in hospital archives, combined with pathological, clinical, and outcome information available for every sample. Although unlocking the proteome of these tissues is still a challenge,...

journal_title：Amino acids

authors： Maes E,Broeckx V,Mertens I,Sagaert X,Prenen H,Landuyt B,Schoofs L

更新日期：2013-08-01 00:00:00