首页> 外国专利> MUTANT BURKHOLDERIA CEPSCIA KM196 STRAIN DEFECT IN OpcPL PORINE PRODUCTION FOR STUDYING OF MOLECULAR MECHANISMS OF MULTIPLE RESISTANCE TO ANTIBIOTICS IN PATHOGENIC BURCHOLDERIA

MUTANT BURKHOLDERIA CEPSCIA KM196 STRAIN DEFECT IN OpcPL PORINE PRODUCTION FOR STUDYING OF MOLECULAR MECHANISMS OF MULTIPLE RESISTANCE TO ANTIBIOTICS IN PATHOGENIC BURCHOLDERIA

机译:研究OpcPL猪生产中突变的布氏杆菌倒数KM196应变缺陷,以研究致病性杆状菌多药耐药性的分子机制

摘要

FIELD: medicine.;SUBSTANCE: what is described is a new Burkholderia cepscia KM 196 strain carrying nitrosoguanidine (NG) induced mutation in the sequence of opcPl gene responsible for expression of porine protein of molecular weight 36 Da. The strain is produced by two mutagenesis cycles of N-methyl-N'-nitro-N-nitrosoguanidine (NG) of the B.cepacia strain 25416 that is followed by the target recovery of mutant clones in the concentrations of pefloxacin (ofloxacin) and ceftazidime decreasing from the maximum permissible concentration for the initial strain. The clones sensitive to kanamycin, tetracycline, chloramphenicol and deficient in production of major proteins of the external membrane are specified among the mutants with varied sensitivity to cephalosporine and fluoroquinolone antibiotics. The strain 25416 is a version with selected markers of perfloxacine, ofloxacine, ceftazidime, kanamycin, tetracycline, chloramphenicol sensitivity (PfxSOfxSCfzSKanSTetSChiS), deficeint in porine protein OpcPl with Mr 36 kDa and deposited in the State Collection 'Microbe' No. 25416 NSP.;EFFECT: strain shows higher sensitivity to various antibiotics and aims at studying of the molecular-genetic bases of multiple drug resistance in Bcepacia and philogenetically related species of Burcholderia.;2 dwg, 2 tbl, 3 ex
机译:领域:药物:描述了一种新的伯克霍尔德氏菌败血症KM 196菌株,该菌株在负责表达分子量为36 Da的蛋白的opcPl基因序列中携带亚硝基胍(NG)诱导的突变。该菌株是由B.cepacia菌株25416的N-甲基-N'-硝基-N-亚硝基胍(NG)的两个诱变周期产生的,然后以百氟沙星(氧氟沙星)和头孢他啶从初始菌株的最大允许浓度开始降低。在对头孢菌素和氟喹诺酮类抗生素具有不同敏感性的突变体中,确定了对卡那霉素,四环素,氯霉素敏感且外膜主要蛋白质生成不足的克隆。 25416菌株是选择了下列药物的版本:全氟沙星,氧氟沙星,头孢他啶,卡那霉素,四环素,氯霉素敏感性(Pfx S Ofx S Cfz S Kan S Tet S Chi S ),在Mk r 36 kDa的鼠蛋白OpcPl中清除deficeint,并沉积在国家专利号:25416 NSP;效果:菌株对各种抗生素具有更高的敏感性,旨在研究Bcepacia和Burcholderia的亲缘相关种的多重耐药性的分子遗传基础。2dwg,2 tbl, 3前

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