mycobacterium tuberculosis glucosyl-3-phosphoglycerate synthase structure of a key enzyme in methylglucose lipopolysaccharide biosynthesis结核分枝杆菌glucosyl-3-phosphoglycerate合成酶的结构的一个关键酶methylglucose脂多糖生物合成.pdfVIP

mycobacterium tuberculosis glucosyl-3-phosphoglycerate synthase structure of a key enzyme in methylglucose lipopolysaccharide biosynthesis结核分枝杆菌glucosyl-3-phosphoglycerate合成酶的结构的一个关键酶methylglucose脂多糖生物合成.pdf

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mycobacterium tuberculosis glucosyl-3-phosphoglycerate synthase structure of a key enzyme in methylglucose lipopolysaccharide biosynthesis结核分枝杆菌glucosyl-3-phosphoglycerate合成酶的结构的一个关键酶methylglucose脂多糖生物合成

Mycobacterium tuberculosis Glucosyl-3- Phosphoglycerate Synthase: Structure of a Key Enzyme in Methylglucose Lipopolysaccharide Biosynthesis ´ 1 2 2 ´ 1 Pedro Jose Barbosa Pereira , Nuno Empadinhas , Luciana Albuquerque , Bebiana Sa-Moura , Milton S. da Costa3, Sandra Macedo-Ribeiro 1* ˆ 1 Instituto de Biologia Molecular e Celular (IBMC), Universidade do Porto, Porto, Portugal, 2 Centro de Neurociencias e Biologia Celular, Departamento de Zoologia, ´ Universidade de Coimbra, Coimbra, Portugal, 3 Departamento de Bioquımica, Universidade de Coimbra, Coimbra, Portugal Abstract Tuberculosis constitutes today a serious threat to human health worldwide, aggravated by the increasing number of identified multi-resistant strains of Mycobacterium tuberculosis, its causative agent, as well as by the lack of development of novel mycobactericidal compounds for the last few decades. The increased resilience of this pathogen is due, to a great extent, to its complex, polysaccharide-rich, and unusually impermeable cell wall. The synthesis of this essential structure is still poorly understood despite the fact that enzymes involved in glycosidic bond synthesis represent more than 1% of all M. tuberculosis ORFs identified to date. One of them is GpgS, a retaining glycosyltransferase (GT) with low sequence homology to any other GTs of known structure, which has been identified in two species of mycobacteria and shown to be essential fo

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