Results 81 to 90 of about 4,946 (199)

A Dynamic Gate Enables Regioselective Hydroxylation of Free Arginine by a Non‐Canonical Heme Enzyme

Advanced Science, Volume 13, Issue 6, 30 January 2026.
The YqcI/YcgG enzyme AglA employs a unique “sandwich” fold and a dynamic gating mechanism to selectively hydroxylate AMPn‐Arg at Nε. Site‐directed mutations reprogram regioselectivity or enable activity on free arginine by altering hydrogen‐bond networks, precisely positioning substrates.
Yuan Sun, Chao Dou, Weizhu Yan, Pengpeng Chen, Lu Zhang, Dan Zhou, Yanhui Zheng, Zhaolin Long, Shoujie Li, Xiaoqing Xu, Qiuxia Huang, Xiaofeng Zhu, Wei Cheng   +12 more
wiley   +1 more source

Species, antibiotic susceptibility profiles and van gene frequencies among enterococci isolated from patients at Mulago National Referral Hospital in Kampala, Uganda

BMC Infectious Diseases, 2019
Background The increase in drug resistance to affordable antibiotics used to treat Gram positive bacterial infections has complicated the management of enterococcal infections.
David P. Kateete, Moses Edolu, Edgar Kigozi, Jeffrey Kisukye, Hannington Baluku, Frank Nobert Mwiine, Christine F. Najjuka   +6 more
doaj   +1 more source

Do We Need to Worry About Staphylococcus epidermidis ST0409KOC, a Cheese‐Isolated Strain With Bacteriocinogenic Properties?

Molecular Nutrition &Food Research, Volume 70, Issue 1, January 2026.
Bacteriocinogenic Staphylococcus epidermidis ST0409KOC was isolated from cheese and characterized as bacteriocin‐producing with strong activity versus Listeria monocytogenes and other pathogens. S. epidermidis ST0409KOC can be considered a safe strain regarding its virulence genetic background, presenting only a single virulence gene of IS257 among the
Kayque Ordonho Carneiro, João Marcos Scafuro Lima, Svetoslav Dimitrov Todorov   +2 more
wiley   +1 more source

Vankomisine dirençli enterokokların sürveyansında GeneXpert® vanA/vanB PCR sistemi ile kültür yönteminin karşılaştırılması

, 2014
Vankomisine dirençli enterokoklar (VRE), tüm dünyada önemli hastane enfeksiyonu etkenlerinden biridir. VRE kolonizasyonunun erken tespit edilebilmesi, oluşabilecek hastane enfeksiyonlarının kontrolün- de önemlidir.
ATAMAN, Çiğdem HATİPOĞLU, ULUDAĞ, Hatice ALTUN, BULUT, CEMAL, KÖSEOĞLU, Özgen ESER, DEMİRÖZ, Ali Pekcan   +4 more
core   +1 more source

Appearance of vanD-positive Enterococcus faecium in a tertiary hospital in the Netherlands: prevalence of vanC and vanD in hospitalized patients

Scientific Reports, 2019
Vancomycin-resistant enterococci (VRE) can rapidly spread through hospitals. Therefore, our hospital employs a screening program whereby rectal swabs are screened for the presence of vanA and vanB, and only PCR-positive broths are cultured on VRE ...
Jacky Flipse, Christian J. H. von Wintersdorff, Julius M. van Niekerk, Casper Jamin, Frank H. van Tiel, Henrik Hasman, Lieke B. van Alphen   +6 more
doaj   +1 more source

Impact of vanB vancomycin-resistant enterococcal bacteraemia analysed as a time-varying covariate on length of hospital stay

, 2014
The impact of vanB vancomycin-resistant enterococci (VRE) bacteraemia on length of stay (LOS) in hospital, after adjusting for the time-varying nature of enterococcal bacteraemia (variable onset of bacteraemia post-admission), is unknown.
KONG, D. C. M., PEEL, T., CHEAH, A. L. Y., NATION, R. L., HOWDEN, B. P., SPELMAN, T., SPELMAN, D., GRAYSON, M. L.   +7 more
core   +1 more source

Additional file 3: of Dissemination and genetic analysis of the stealthy vanB gene clusters of Enterococcus faecium clinical isolates in Japan

, 2018
Figure S2. Amino acid sequence alignment of VanB encoded by M1/Y7 and the other VanB-type VRE. The genetic information for VanB-type vancomycin resistant enterococci was obtained from the genome database in NCBI ( http://www.ncbi.nlm.nih.gov ...
Komei Shirabe (6084998), Kiyoko Tamai (6084986), Yasuyoshi Ike (6085001), Hideji Yanagisawa (6084992), Jun Kurushima (158861), Koichi Tanimoto (6084983), Yusuke Hashimoto (3330606), Haruyoshi Tomita (6085004), Takahiro Nomura (3590180)   +8 more
core   +1 more source

An Investigation of the vanA and vanB Genes in Enterococcus faecalis and Enterococcus faecium Strains Isolated from the Hospitalized Patients in Shariati Hospital and Evaluation of Their Antibiotic Susceptibility

Majallah-i Dānishgāh-i ̒Ulūm-i Pizishkī-i Qum, 2015
Background and Objectives: One of the public concerns is emergence of Vancomycin-resistant Enterococci. VanA and vanB genes is responsible for resistance to high concentrations of Vancomycin.
Hamed Samadi, Rahim Pirhajati Mahabadi, Abazar Pournajaf, Sajad Omidi, Somayeh Moghimyan, Neda Alyasin   +5 more
doaj  

Molecular detection of vanA and vanB genes among vancomycin-resistant enterococci in ICU-hospitalized patients in Ahvaz in southwest of Iran

, 2018
Mojtaba Moosavian,1,2 Hosein Ghadri,2 Zahra Samli3 1Infectious and Tropical Diseases Research Center, Health Research Institute, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran; 2Department of Microbiology, School of Medicine, Ahvaz ...
Moosavian M, Ghadri H, Samli Z
core  

S1-nuclease PFGE and corresponding Southern hybridisations with vanB and rep_17/pRUM probes.

, 2014
Donors VRE0690, VRE0653 and VRE0776 (lanes 5, 7 and 9) and their respective transconjugants (lanes 4, 6 and 8) illustrate transfer of different sized plasmids co-hybridising to vanB and rep17/pRUM (circa 110–150 kb) into 64/3 (lane 1).
Karin Tegmark Wisell (621464), Arnfinn Sundsfjord (147251), Öjar Melefors (33841), Barbro Olsson Liljequist (621463), Hanna Billström (621462), Kristin Hegstad (621467), Måns Ullberg (621465), Audun Sivertsen (621461), Volkan Özenci (621466)   +8 more
core   +1 more source