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162655

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Mengxuan Chen et al.
Scientific reports, 8(1), 72-72 (2018-01-10)
Marine natural products are important resources for discovering novel anticancer drugs. In this study, an extract prepared from the culture of a sea anemone-derived actinomycete Streptomyces sp. ZZ406 in soluble starch and casein-related liquid medium was found to have activity...
Ankita Bansal et al.
Microbiology (Reading, England), 161(Pt 5), 1081-1091 (2015-03-10)
DD-carboxypeptidases (DD-CPases) are low-molecular-mass (LMM) penicillin-binding proteins (PBPs) that are mainly involved in peptidoglycan remodelling, but little is known about the dd-CPases of mycobacteria. In this study, a putative DD-CPase of Mycobacterium smegmatis, MSMEG_2433 is characterized. The gene for the...
T Fukushima et al.
Biological & pharmaceutical bulletin, 18(8), 1130-1132 (1995-08-01)
D-Ala and D-Ser were detected in the sera of both normal subjects and patients with renal dysfunction, and their concentrations were higher in the patients than in the normal subjects. A positive correlation between the concentration of D-Ala or D-Ser...
S Scholl-Bürgi et al.
Neuropediatrics, 40(2), 76-81 (2009-10-08)
Propionic acidemia caused by propionyl-CoA carboxylase deficiency frequently leads to neurologic complications. Herein we report an eleven-year-old patient with propionic acidemia having three stroke-like episodes during a period of 13 months characterized by acute reversible hemiplegia and vegetative symptoms like...
Kelly A Fimlaid et al.
PLoS genetics, 11(10), e1005562-e1005562 (2015-10-16)
Sporulation is an ancient developmental process that involves the formation of a highly resistant endospore within a larger mother cell. In the model organism Bacillus subtilis, sporulation-specific sigma factors activate compartment-specific transcriptional programs that drive spore morphogenesis. σG activity in...
Iris Thondorf et al.
Bioorganic & medicinal chemistry, 19(21), 6409-6418 (2011-10-01)
The proton-coupled amino acid transporter hPAT1 has recently gained much interest due to its ability to transport small drugs thereby allowing their oral administration. A three-dimensional quantitative structure-activity relationship (3D QSAR) study has been performed on its natural and synthetic...
Kenji Hamase et al.
Biological & pharmaceutical bulletin, 28(9), 1578-1584 (2005-09-06)
The determination of small amounts of D-amino acids in mammalian tissues is still a challenging theme in the separation sciences. In this review, various gas-chromatographic and high-performance liquid chromatographic methods are discussed including highly selective and sensitive column-switching procedures. Based...
Kihye Shin et al.
Plant & cell physiology, 56(3), 572-582 (2014-12-19)
1-Aminocyclopropane-1-carboxylic acid (ACC) is a biosynthetic precursor of ethylene, a gaseous plant hormone which controls a myriad of aspects of development and stress adaptation in higher plants. Here, we identified a mutant in Arabidopsis thaliana, designated as ACC-resistant2 (are2), displaying...
Zadkiel Alvarez et al.
Antimicrobial agents and chemotherapy, 54(12), 5329-5336 (2010-10-06)
Bacillus anthracis, the etiological agent of anthrax, has a dormant stage in its life cycle known as the endospore. When conditions become favorable, spores germinate and transform into vegetative bacteria. In inhalational anthrax, the most fatal manifestation of the disease...
Brian R Tuinema et al.
mBio, 5(6), e01886-e01886 (2014-11-27)
Neutrophils engulf and kill bacteria using oxidative and nonoxidative mechanisms. Despite robust antimicrobial activity, neutrophils are impaired in directing Salmonella clearance and harbor viable intracellular bacteria during early stages of infection that can subsequently escape to more-permissive cell types. The...
Yueru Tian et al.
BMC microbiology, 14, 292-292 (2014-11-26)
Linezolid is one of the most effective treatments against Gram-positive pathogens. However, linezolid-resistant/intermediate strains have recently emerged in worldwide. The purpose of this study was to analyse the prevalence and resistance mechanisms of linezolid-resistant/intermediate staphylococci and enterococci in Shanghai, China....
G H Fisher et al.
Brain research bulletin, 26(6), 983-985 (1991-06-01)
In this report we present evidence for the presence of free D-aspartic acid (D-Asp) and D-alanine (D-Ala) in the white and gray matter of normal human brains and brains of individuals with Alzheimer's disease. D-Asp occurs at about the same...
A D'Aniello et al.
Brain research, 592(1-2), 44-48 (1992-10-02)
This report constitutes the first demonstration of the presence of D-alanine in the proteins of the human nervous system. Proteins of the frontal lobe white and gray matter of human brains, both normal and Alzheimer subjects, contain D-alanine at concentrations...
Stephan Urwyler et al.
Journal of medicinal chemistry, 52(16), 5093-5107 (2009-08-01)
Retaining agonistic activity at the glycine coagonist site of the NMDA receptor in molecules derived from glycine or d-serine has proven to be difficult because in the vicinity of the alpha-amino acid group little substitution is tolerated. We have solved...
Y Nagata et al.
Experientia, 48(10), 986-988 (1992-10-15)
Twelve neutral free amino acids, i.e. serine, threonine, glutamine, asparagine, alanine, proline, methionine, tyrosine, valine, leucine, isoleucine and phenylalanine, were surveyed for the presence of D-enantiomers in plasma samples from patients with renal diseases and from normal subjects. D-serine, D-alanine...
Biswajit Brahma et al.
PloS one, 10(3), e0119178-e0119178 (2015-03-19)
Nucleotide binding and oligomerization domain (NOD)-like receptors (NLRs) are innate immune receptors that recognize bacterial cell wall components and initiate host immune response. Structure and function of NLRs have been well studied in human and mice, but little information exists...
Maria C Mavroudi et al.
Electrophoresis, 35(18), 2573-2578 (2014-05-24)
The aim of the present study is the CE performance evaluation for the separation of 2-arylpropionic acid nonsteroidal anti-inflammatory drugs. In particular, the separation of indoprofen, carprofen, ketoprofen, ibuprofen, and flurbiprofen was obtained by supporting the BGE either with SDS...
Serafim Kiriakidis et al.
FASEB journal : official publication of the Federation of American Societies for Experimental Biology, 29(7), 2814-2827 (2015-04-04)
Factor-inhibiting hypoxia-inducible factor (HIF)-1 (FIH-1) is an asparaginyl β-hydroxylase enzyme that was initially found to hydroxylate the HIF-α, preventing its transcriptional activity and leading to adaptive responses to hypoxia. More recently, other substrates, such as neurogenic locus notch homolog (Notch)...
Lucia Carrano et al.
BioMed research international, 2015, 419383-419383 (2015-09-09)
With the increasing need of effective antibiotics against multi-drug resistant pathogens, lantibiotics are an attractive option of a new class of molecules. They are ribosomally synthetized and posttranslationally modified peptides possessing potent antimicrobial activity against aerobic and anaerobic Gram-positive pathogens...
Dong Liu et al.
FEMS microbiology letters, 362(13), fnv089-fnv089 (2015-06-05)
This study focused on the alanine racemase gene (alr-2), which is involved in the synthesis of d-alanine that forms the backbone of the cell wall. A stable alr-2 knockout mutant of Aeromonas hydrophila HBNUAh01 was constructed. When the mutant was...
Angelica Dessì et al.
The journal of maternal-fetal & neonatal medicine : the official journal of the European Association of Perinatal Medicine, the Federation of Asia and Oceania Perinatal Societies, the International Society of Perinatal Obstetricians, 27 Suppl 2, 34-38 (2014-10-07)
The objective of our study was to evaluate the capability of the metabolomics approach to identify the variations of urine metabolites over time related to the neonatal fungal septic condition. The study population included a clinical case of a preterm...
David Dodds et al.
mSphere, 5(3) (2020-06-12)
Using live microbes as therapeutic candidates is a strategy that has gained traction across multiple therapeutic areas. In the skin, commensal microorganisms play a crucial role in maintaining skin barrier function, homeostasis, and cutaneous immunity. Alterations of the homeostatic skin...
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