نتایج جستجو برای: msra

تعداد نتایج: 346  

Journal: :Plastic and reconstructive surgery 2001
G S Wachtman J F Cohn J M VanSwearingen E K Manders

Facial neuromuscular dysfunction severely impacts adaptive and expressive behavior and emotional health. Appropriate treatment is aided by quantitative and efficient assessment of facial motion impairment. We validated a newly developed method of quantifying facial motion, automated face analysis (AFA), by comparing it with an established manual marking method, the Maximal Static Response Assay...

Journal: :Journal of bacteriology 1995
J Moskovitz M A Rahman J Strassman S O Yancey S R Kushner N Brot H Weissbach

The Escherichia coli peptide methionine sulfoxide reductase gene (msrA) encodes a single-subunit polypeptide of 212 amino acid residues (M. A. Rahman, H. Nelson, H. Weissbach, and N. Brot, J. Biol. Chem. 267:15549-15551, 1992). RNA blot analysis showed that the gene is transcribed into an mRNA of about 850 nucleotides. The promoter region was characterized, and the transcription initiation site...

Journal: :Journal of bacteriology 2005
Benjamin Ezraty Julia Bos Frédéric Barras Laurent Aussel

Methionine ranks among the amino acids most sensitive to oxidation, which converts it to a racemic mixture of methionine-S-sulfoxide (Met-S-SO) and methionine-R-sulfoxide (Met-R-SO). The methionine sulfoxide reductases MsrA and MsrB reduce free and protein-bound MetSO, MsrA being specific for Met-S-SO and MsrB for Met-R-SO. In the present study, we report that an Escherichia coli metB1 auxotrop...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2002
Gregory V Kryukov R Abhilash Kumar Ahmet Koc Zhaohui Sun Vadim N Gladyshev

Selenoprotein R (SelR) is a mammalian selenocysteine-containing protein with no known function. Here we report that cysteine homologs of SelR are present in all organisms except certain parasites and hyperthermophiles, and this pattern of occurrence closely matches that of only one protein, peptide methionine sulfoxide reductase (MsrA). Moreover, in several genomes, SelR and MsrA genes are fuse...

2014
Mojtaba Moosavian Saeed Shoja Soodabeh Rostami Maryam Torabipour Zahra Farshadzadeh

BACKGROUND AND OBJECTIVES Resistance to macrolide can be mediated by erm and msrA genes in Staphylococcus aureus. There are the evidences that show erm genes may be causative agent of inducible or constitutive resistance. The aim of this study was to investigate the incidence of inducible clindamycin resistance and determine the most frequency of erm and msrA genes among S. aureus isolates. M...

2002
Hongzhao He Jianfeng Gao

This paper describes three statistical models for the purpose of resolving query translation ambiguity for cross-language information retrieval (CLIR). First, a decaying co-occurrence model is present. It is an extension of traditional co-occurrence models in that it contains a decaying factor which decreases the mutual information when the distance between the terms increases. Second, a phrase...

2012
Kishore Das Georgina De la Garza Shivani Maffi Sankaralingam Saikolappan Subramanian Dhandayuthapani

Mycoplasma genitalium is an important sexually transmitted pathogen that affects both men and women. In genital-mucosal tissues, it initiates colonization of epithelial cells by attaching itself to host cells via several identified bacterial ligands and host cell surface receptors. We have previously shown that a mutant form of M. genitalium lacking methionine sulfoxide reductase A (MsrA), an a...

Journal: :The Journal of neuroscience : the official journal of the Society for Neuroscience 2007
Ramez Wassef Ronny Haenold Alfred Hansel Nathan Brot Stefan H Heinemann Toshinori Hoshi

Parkinson's disease (PD), a common neurodegenerative disease, is caused by loss of dopaminergic neurons in the substantia nigra. Although the underlying cause of the neuronal loss is unknown, oxidative stress is thought to play a major role in the pathogenesis of PD. The amino acid methionine is readily oxidized to methionine sulfoxide, and its reduction is catalyzed by a family of enzymes call...

2007
Zhisheng Li Chong Wang Xing Xie Wei-Ying Ma

This paper describes the participation of Columbus Project of Microsoft Research Asia (MSRA) in GeoCLEF2007 (a cross-language geographical retrieval track which is part of Cross Language Evaluation Forum). This is the second time we participate in this event. Since the queries in GeoCLEF2007 are similar to those in GeoCLEF2006, we leverage most of the methods that we used in GeoCLEF2006, includ...

Journal: :iranian journal of microbiology 0
sareh sadat hosseini department of microbiology, school of medicine, shahed university, tehran, iran mohammad niakan department of microbiology, school of medicine, shahed university, tehran, iran horieh saderi molecular microbiology research center, school of medicine, shahed university, tehran, iran mitra motallebi department of microbiology, school of medicine, tehran university of medical sciences, tehran, iran morovat taherikalani razi herbal medicines research center & department of microbiology, school of medicine, lorestan university of medical sciences, ilam, iran khairollah asadollahi department of social medicine, school of medicine, ilam university of medical sciences, ilam, iran

background and objectives: macrolide, lincosamide and streptogramin type b (mlsb) antibiotics are important in the treatment of staphylococcus aureus infections and existence of isolates with ability to resist against mlsb antibiotics is worrisome. materials and methods: in this cross sectional study, 101 s. aureus isolates were collected from patients of five selected hospitals in tehran over ...

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