نتایج جستجو برای: l lysine

تعداد نتایج: 641296  

Journal: :Journal of bacteriology 1999
D Mengin-Lecreulx T Falla D Blanot J van Heijenoort D J Adams I Chopra

The monomer units in the Escherichia coli and Staphylococcus aureus cell wall peptidoglycans differ in the nature of the third amino acid in the L-alanyl-gamma-D-glutamyl-X-D-alanyl-D-alanine side chain, where X is meso-diaminopimelic acid or L-lysine, respectively. The murE gene from S. aureus encoding the UDP-N-acetylmuramoyl-L-alanyl-D-glutamate: L-lysine ligase was identified and cloned int...

Journal: :Cancer research 1996
H Kobayashi T M Yoo I S Kim M K Kim N Le K O Webber I Pastan C H Paik W C Eckelman J A Carrasquillo

In this study, we investigated the ability of L-lysine to block renal uptake of 125I- or 99mTc- labeled Fv fragments. Anti-Tac disulfide-stabilized Fv fragment (dsFv) was derived from a murine monoclonal antibody that recognizes the alpha subunit of the interleukin-2 receptor (IL-2R alpha). The 125I- or 99mTc-labeled dsFv was injected i.v. into non-tumor-bearing nude mice or into nude mice bear...

Journal: :The Journal of biological chemistry 1956
M A STAHMANN E TSUYUKI H TSUYUKI

In studies of the inhibition in viva of animal viruses by poly-n-lysine, Rubini et al. (1) and Green et al. (2-4) obtained data which suggested that poly-L-lysine is hydrolyzed by the proteolytic enzymes of the allantoic fluid, and that this enzymatic hydrolysis may limit its biological activity. The enzymatic hydrolysis of poly-n-lysine was reported by Katchalski (5) and by Waley and Watson (6...

Journal: :The Biochemical journal 1973
R A Cox C L Hoppel

The conversion of l-[U-(14)C]lysine into carnitine was demonstrated in normal, choline-deficient and lysine-deficient rats. In other experiments in vivo radioactivity from l-[4,5-(3)H]lysine and dl-[6-(14)C]lysine was incorporated into carnitine; however, radioactivity from dl-[1-(14)C]lysine and dl-[2-(14)C]lysine was not incorporated. Administered l-[Me-(14)C]methionine labelled only the 4-N-...

2011
Caroline Wass Daniel Klamer Evangelos Katsarogiannis Erik Pålsson Lennart Svensson Kim Fejgin Inga-Britt Bogren Jörgen A Engel Birgitta Rembeck

BACKGROUND Accumulating evidence suggests that the brain's nitric oxide (NO) signalling system may be involved in the pathophysiology of schizophrenia and could thus constitute a novel treatment target. The study was designed to investigate the benefit of L-lysine, an amino acid that interferes with NO production, as an add-on treatment for schizophrenia. METHODS L-lysine, 6 g/day, was admini...

2017
Christoph Mathieu Juan P. Macêdo Daniel Hürlimann Corina Wirdnam Alexander C. Haindrich Marianne Suter Grotemeyer Amaia González-Salgado Remo S. Schmidt Ehud Inbar Pascal Mäser Peter Bütikofer Dan Zilberstein Doris Rentsch

For Trypanosoma brucei arginine and lysine are essential amino acids and therefore have to be imported from the host. Heterologous expression in Saccharomyces cerevisiae mutants identified cationic amino acid transporters among members of the T. brucei AAAP (amino acid/auxin permease) family. TbAAT5-3 showed high affinity arginine uptake (Km 3.6 ± 0.4 μM) and high selectivity for L-arginine. L-...

2015
Abdulrahman L. Al-Malki

BACKGROUND Acute pancreatitis is an inflammatory disease caused by several factors such as viral infection, drugs, and diagnostic endoscopy. The aim of this study was to evaluate the potential protective or therapeutic effects of L-lysine on pancreatitis induced by L-arginine in mice. METHODS Four groups of mice (10 in each group) were assessed. Group I was the control. Animals in groups II-I...

Journal: :Journal of animal science 2000
W L Hurley H Wang J M Bryson D B Shennan

Kinetic properties and substrate specificity of the lysine transport system in porcine mammary gland were studied using mammary tissue explants from nine lactating sows. Sodium dependence of lysine uptake was determined by replacing sodium in the medium with choline. Kinetic parameters of lysine uptake were determined using lysine concentrations from 5 microM to 5.12 mM. Competition of lysine u...

Journal: :Clinical science 1980
D Burston E Taylor D M Matthews

1. The kinetics of 2-min uptake of L-lysine and L-lysyl-L-lysine have been studied by using rings of everted hamster intestine in vitro, and values for Kt and Vmax. established. 2. On a molar basis, mediated uptake was more rapid for the amino acid than for the peptide. Non-mediated uptake was more rapid for the peptide than for the amino acid. 3. Comparison of relative rates of uptake of lysin...

Journal: :JAS (Journal of Animal Science) 2022

Penelitin ini bertujuan untuk mengetahui kualitas semen secara mikroskopis pada ayam kampung jantan yang disuplementasikan L-Arginine dan L-Lysine dalam pakan. Penelitian menggunakan 43 ekor ternak umur 3 bulan pengambilan data diambil saat berumur 5 bulan. Perlakuan diberikan terdiri dari T1: Pakan kontrol + 0,4 g 0,6 g; T2: T3: 0,8 T4: g. Variabel diamati penelitian adalah motilitas, viabilit...

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