O-phosphoserine sulfhydrylase mutants and method for production of cysteine using the same
    1.
    发明授权
    O-phosphoserine sulfhydrylase mutants and method for production of cysteine using the same 有权
    O-磷酸丝氨酸巯基酸酶突变体及其制备方法

    公开(公告)号:US09127324B2

    公开(公告)日:2015-09-08

    申请号:US13278100

    申请日:2011-10-20

    CPC classification number: C12Y205/01065 C12N9/1085 C12P13/12

    Abstract: Disclosed is an O-phosphoserine sulfhydrylase (OPSS) mutant which has a Mycobacterium smegmatis-derived amino acid sequence corresponding to that of SEQ ID NO: 1 which is devoid of three to seven C-terminal amino acid residues. Also, a nucleic acid molecule encoding the OPSS mutant, an expression vector carrying the nucleic acid molecule, and a transformant transformed with the expression vector are disclosed. In addition, a method is provided for producing cysteine in which O-phospho-L-serine (OPS) is reacted with a sulfide in the presence of the OPSS mutant. The OPSS mutant has improved enzymatic activity and can be applied to the environmentally friendly production of L-cysteine through a simple enzymatic conversion reaction.

    Abstract translation: 公开了一种O-磷酸丝氨酸二硫氢化酶(OPSS)突变体,其具有对应于SEQ ID NO:1的不含3至7个C末端氨基酸残基的分枝杆菌来源的氨基酸序列。 此外,公开了编码OPSS突变体的核酸分子,携带核酸分子的表达载体和用表达载体转化的转化体。 此外,提供了在OPSS突变体的存在下,使O-磷酸-L-丝氨酸(OPS)与硫化物反应的半胱氨酸的制造方法。 OPSS突变体具有改善的酶活性,可以通过简单的酶转化反应应用于环保生产L-半胱氨酸。

    Salmonella bacteriophage and antibacterial composition comprising the same
    4.
    发明授权
    Salmonella bacteriophage and antibacterial composition comprising the same 有权
    沙门氏菌噬菌体和包含其的抗菌组合物

    公开(公告)号:US08293515B2

    公开(公告)日:2012-10-23

    申请号:US12875863

    申请日:2010-09-03

    Abstract: Disclosed herein is a novel bacteriophage which has specific bactericidal activity against one or more Salmonella bacteria selected from the group consisting of Salmonella Enteritidis, Salmonella Typhimurium, Salmonella Gallinarum, and Salmonella Pullorum without affecting beneficial bacteria, in addition to showing excellent tolerance to acid, heat and desiccation. The novel bacteriophage can be widely used as an active ingredient for therapeutic agents, animal feeds or drinking water, cleaners and sanitizers for preventing and treating the infectious diseases caused by Salmonella Enteritidis, Salmonella Typhimurium, Salmonella Gallinarum or Salmonella Pullorum including salmonellosis, Salmonella food poisoning, Fowl Typhoid, and Pullorum disease or for controlling the salmonella bacteria.

    Abstract translation: 本文公开了一种新型噬菌体,其对一种或多种选自肠炎沙门氏菌,鼠伤寒沙门氏菌,沙门氏菌和沙门氏菌的沙门氏菌具有特异杀菌活性,而不影响有益细菌,除了显示出对酸,热的良好耐受性 和干燥。 新型噬菌体可广泛用作治疗剂,动物饲料或饮用水,清洁剂和消毒剂,用于预防和治疗肠炎沙门氏菌,鼠伤寒沙门氏菌,沙门氏菌或沙门氏菌沙门氏菌引起的传染病,包括沙门氏菌病,沙门氏菌食物中毒 ,家禽伤寒和Pullorum病或用于控制沙门氏菌。

    Method for separating and purifying 1,4-diaminobutane from fermented solution
    7.
    发明授权
    Method for separating and purifying 1,4-diaminobutane from fermented solution 有权
    从发酵液中分离纯化1,4-二氨基丁烷的方法

    公开(公告)号:US08927774B2

    公开(公告)日:2015-01-06

    申请号:US14240695

    申请日:2012-08-24

    CPC classification number: C07C209/86 C07C209/84 C12P13/001 C07C211/09

    Abstract: The present invention relates to a method for separating and purifying 1,4-diaminobutane at high purity and high yield from a fermented solution comprising 1,4-diaminobutane, through cell mass removement, desalination, concentration, impurities removal, and recovery. Also, provided is a method for separating and purifying 1,4-diaminobutane at high purity and high yield from a fermented solution 1,4-diaminobutane, through cell mass removement, desalination, low-temperature concentration, crystallization, filtration, high-temperature concentration and distillation.

    Abstract translation: 本发明涉及从包含1,4-二氨基丁烷的发酵溶液中通过细胞去除,脱盐,浓缩,杂质去除和回收,以高纯度和高收率分离和纯化1,4-二氨基丁烷的方法。 此外,提供了从发酵液1,4-二氨基丁烷分离纯化和高产率的1,4-二氨基丁烷的方法,通过细胞质量去除,脱盐,低温浓缩,结晶,过滤,高温 浓缩和蒸馏。

    METHOD FOR SEPARATING AND PURIFYING 1,4-DIAMINOBUTANE FROM FERMENTED SOLUTION
    8.
    发明申请
    METHOD FOR SEPARATING AND PURIFYING 1,4-DIAMINOBUTANE FROM FERMENTED SOLUTION 有权
    从发泡溶液中分离和纯化1,4-二氨基丁酸的方法

    公开(公告)号:US20140213824A1

    公开(公告)日:2014-07-31

    申请号:US14240695

    申请日:2012-08-24

    CPC classification number: C07C209/86 C07C209/84 C12P13/001 C07C211/09

    Abstract: The present invention relates to a method for separating and purifying 1,4-diaminobutane at high purity and high yield from a fermented solution comprising 1,4-diaminobutane, through cell mass removement, desalination, concentration, impurities removal, and recovery. Also, provided is a method for separating and purifying 1,4-diaminobutane at high purity and high yield from a fermented solution 1,4-diaminobutane, through cell mass removement, desalination, low-temperature concentration, crystallization, filtration, high-temperature concentration and distillation.

    Abstract translation: 本发明涉及从包含1,4-二氨基丁烷的发酵溶液中通过细胞去除,脱盐,浓缩,杂质去除和回收,以高纯度和高收率分离和纯化1,4-二氨基丁烷的方法。 此外,提供了从发酵液1,4-二氨基丁烷分离纯化和高产率的1,4-二氨基丁烷的方法,通过细胞质量去除,脱盐,低温浓缩,结晶,过滤,高温 浓缩和蒸馏。

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