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公开(公告)号:US20060292651A1
公开(公告)日:2006-12-28
申请号:US10529647
申请日:2003-10-01
申请人: Alexandre Juillerat , Antje Keppler , Kai Johnsson , Thomas Gronemeier , Susanne Gendreizig , Andreas Brecht
发明人: Alexandre Juillerat , Antje Keppler , Kai Johnsson , Thomas Gronemeier , Susanne Gendreizig , Andreas Brecht
CPC分类号: C12N15/62 , C12N9/1085 , C12Q1/48
摘要: The present invention relates to methods of transferring a label from suitable substrates to O6-alkylguanine-DNA alkyltransferase (AGT) fusion proteins, to suitable fusion proteins, to suitable variants of AGT, and to novel labelled fusion proteins obtained. A protein of interest is incorporated into an AGT fusion protein, the AGT fusion protein is contacted with an AGT substrate carrying a label, and the AGT fusion protein is detected and/or manipulated using the label in a system designed for recognising and/or handling the label.
摘要翻译: 本发明涉及将标记从合适的底物转移到O6-烷基鸟嘌呤-DNA烷基转移酶(AGT)融合蛋白,合适的融合蛋白,合适的AGT变体和获得的新型标记的融合蛋白的方法。 将感兴趣的蛋白质并入AGT融合蛋白中,AGT融合蛋白与携带标记的AGT底物接触,并且使用设计用于识别和/或处理的系统中的标记来检测和/或操纵AGT融合蛋白 标签。
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公开(公告)号:US07939284B2
公开(公告)日:2011-05-10
申请号:US10474796
申请日:2002-04-05
申请人: Kai Johnsson , Susanne Gendreizig , Antje Keppler
发明人: Kai Johnsson , Susanne Gendreizig , Antje Keppler
IPC分类号: G01N33/533 , C12Q1/48 , C12P21/00 , C12P21/04 , G01N33/53
CPC分类号: G01N33/531 , C07K2319/20 , C07K2319/60
摘要: A method using O6-alkylguanine-DNA alkyltransferases (AGT) is disclosed for transferring a label from a substrate to a fusion protein comprising the AGT. This allows the detection and/or manipulating of the fusion protein, both in vitro and in vivo, by attaching molecules to the fusion proteins that introduce a new physical or chemical property to the fusion protein. Examples of such molecules are, among others, spectroscopic probes or reporter molecules, affinity tags, molecules generating reactive radicals, cross-linkers, ligands mediating protein-protein interactions or molecules suitable for the immobilisation of the fusion protein.
摘要翻译: 公开了使用O6-烷基鸟嘌呤-DNA烷基转移酶(AGT)的方法,用于将标记从底物转移至包含AGT的融合蛋白。 这允许在体外和体内通过将融合蛋白连接到融合蛋白上来检测和/或操纵融合蛋白,所述融合蛋白向融合蛋白引入新的物理或化学性质。 此类分子的实例尤其是光谱探针或报告分子,亲和标签,产生反应性基团的分子,交联剂,介导蛋白质 - 蛋白质相互作用的配体或适合固定融合蛋白的分子。
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公开(公告)号:US07888090B2
公开(公告)日:2011-02-15
申请号:US10591159
申请日:2005-03-01
申请人: Jan Barnikow , Christopher Chidley , Thomas Gronemeyer , Christian Heinis , Hughes Jaccard , Kai Johnsson , Alexandre Juillerat , Antje Keppler
发明人: Jan Barnikow , Christopher Chidley , Thomas Gronemeyer , Christian Heinis , Hughes Jaccard , Kai Johnsson , Alexandre Juillerat , Antje Keppler
CPC分类号: C12N9/10 , C07K2319/00 , C12N9/1007
摘要: The invention relates to AGT mutants showing, when compared to the wild type human AGT, two or more advantageous properties selected from (a) reduced DNA interaction; (b) localisation of the expressed protein in eukaryotic cells that is no longer restricted to the nucleus; (c) improved expression yield as soluble protein and improved stability in various hosts; (d) improved stability under oxidising conditions; (e) improved stability within cells after reaction with a substrate; (f) improved stability outside cells before and after reaction with a substrate; (g) improved in vitro solubility; (h) improved reactivity against O6-alkylguanine substrates; (1) reduced reactivity against DNA-based substrates; and (j) reduced reactivity against N9-substituted O6-alkylguanine substrates. Such AGT mutants with the mentioned improved properties are mutants wherein between 1 and 25 amino acids of the wild type human AGT are substituted by other amino acids, and optionally 1 to 5 amino acids out of the continuous chain at one, two or three positions are deleted or added and/or 1 to 4 amino acids at the N-terminus or 1 to 40 amino acids at the C-terminus are deleted. The invention further relates to a method for detecting and/or manipulating a protein of interest wherein the protein of interest is incorporated into a fusion protein with the AGT mutants of the invention. Another object of the invention are AGT fusion proteins comprising such AGT mutants and the protein of interest.
摘要翻译: 本发明涉及AGT突变体,当与野生型人AGT相比时,显示出选自(a)减少的DNA相互作用的两种或更多种有利性质; (b)表达的蛋白质在不再限于细胞核的真核细胞中的定位; (c)提高作为可溶性蛋白质的表达产率和改善各种宿主的稳定性; (d)改善氧化条件下的稳定性; (e)在与底物反应后改善细胞内的稳定性; (f)在与底物反应之前和之后提高细胞外的稳定性; (g)提高体外溶解度; (h)改善对O6-烷基鸟嘌呤底物的反应性; (1)降低对DNA基底层的反应性; 和(j)对N9取代的O6-烷基鸟嘌呤底物的反应性降低。 具有上述改进性质的这种AGT突变体是突变体,其中野生型人AGT的1至25个氨基酸被其它氨基酸取代,并且在一个,两个或三个位置上连续链中任选地1至5个氨基酸是 在N-末端缺失或添加和/或1至4个氨基酸或C末端的1至40个氨基酸被缺失。 本发明还涉及用于检测和/或操纵感兴趣的蛋白质的方法,其中将目的蛋白质与本发明的AGT突变体掺入融合蛋白中。 本发明的另一个目的是包含这种AGT突变体和目的蛋白质的AGT融合蛋白。
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公开(公告)号:US20070207532A1
公开(公告)日:2007-09-06
申请号:US10591159
申请日:2005-03-01
申请人: Jan Barnikov , Christopher Chidley , Thomas Gronemeyer , Christian Heinis , Hughes Jaccard , Kai Johnsson , Alexandre Juillerat , Antje Keppler
发明人: Jan Barnikov , Christopher Chidley , Thomas Gronemeyer , Christian Heinis , Hughes Jaccard , Kai Johnsson , Alexandre Juillerat , Antje Keppler
IPC分类号: C12N9/00
CPC分类号: C12N9/10 , C07K2319/00 , C12N9/1007
摘要: The invention relates to AGT mutants showing, when compared to the wild type human AGT, two or more advantageous properties selected from (a) reduced DNA interaction; (b) localisation of the expressed protein in eukaryotic cells that is no longer restricted to the nucleus; (c) improved expression yield as soluble protein and improved stability in various hosts; (d) improved stability under oxidising conditions; (e) improved stability within cells after reaction with a substrate; (f) improved stability outside cells before and after reaction with a substrate; (g) improved in vitro solubility; (h) improved reactivity against 06-alkylguanine substrates; (1) reduced reactivity against DNA-based substrates; and (j) reduced reactivity against N9-substituted 06-alkylguanine substrates. Such AGT mutants with the mentioned improved properties are mutants wherein between 1 and 25 amino acids of the wild type human AGT are substituted by other amino acids, and optionally I to 5 amino acids out of the continuous chain at one, two or three positions are deleted or added and/or 1 to 4 amino acids at the N-terminus or 1 to 40 amino acids at the C-terminus are deleted. The invention further relates to a method for detecting and/or manipulating a protein of interest wherein the protein of interest is incorporated into a fusion protein with the AGT mutants of the invention. Another object of the invention are AGT fusion proteins comprising such AGT mutants and the protein of interest.
摘要翻译: 本发明涉及AGT突变体,当与野生型人AGT相比时,显示出选自(a)减少的DNA相互作用的两种或更多种有利性质; (b)表达的蛋白质在不再限于细胞核的真核细胞中的定位; (c)提高作为可溶性蛋白质的表达产率和改善各种宿主的稳定性; (d)改善氧化条件下的稳定性; (e)在与底物反应后改善细胞内的稳定性; (f)在与底物反应之前和之后提高细胞外的稳定性; (g)提高体外溶解度; (h)改善对0-6个 - 烷基鸟嘌呤底物的反应性; (1)降低对DNA基底层的反应性; 和(j)对N 9 - 取代的0-6-烷基鸟嘌呤底物的反应性降低。 具有上述改进性质的这种AGT突变体是突变体,其中野生型人AGT的1至25个氨基酸被其它氨基酸取代,并且在一个,两个或三个位置上,连续链中任选地I至5个氨基酸是 在N-末端缺失或添加和/或1至4个氨基酸或C末端的1至40个氨基酸被缺失。 本发明还涉及用于检测和/或操纵感兴趣的蛋白质的方法,其中将目的蛋白质与本发明的AGT突变体掺入融合蛋白中。 本发明的另一个目的是包含这种AGT突变体和目的蛋白质的AGT融合蛋白。
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公开(公告)号:US20110165593A1
公开(公告)日:2011-07-07
申请号:US13006087
申请日:2011-01-13
申请人: Jan Barnikow , Christopher Chidley , Thomas Gronemeyer , Christian Heinis , Hughes Jaccard , Kai Johnsson , Alexandre Juillerat , Antje Keppler
发明人: Jan Barnikow , Christopher Chidley , Thomas Gronemeyer , Christian Heinis , Hughes Jaccard , Kai Johnsson , Alexandre Juillerat , Antje Keppler
IPC分类号: G01N33/573 , C12N9/10
CPC分类号: C12N9/10 , C07K2319/00 , C12N9/1007
摘要: The invention relates to AGT mutants showing, when compared to the wild type human AGT, two or more advantageous properties selected from (a) reduced DNA interaction; (b) localisation of the expressed protein in eukaryotic cells that is no longer restricted to the nucleus; (c) improved expression yield as soluble protein and improved stability in various hosts; (d) improved stability under oxidising conditions; (e) improved stability within cells after reaction with a substrate; (f) improved stability outside cells before and after reaction with a substrate; (g) improved in vitro solubility; (h) improved reactivity against O6-alkylguanine substrates; (i) reduced reactivity against DNA-based substrates; and (j) reduced reactivity against N9-substituted O6-alkylguanine substrates. Such AGT mutants with the mentioned improved properties are mutants wherein between 1 and 25 amino acids of the wild type human AGT are substituted by other amino acids, and optionally 1 to 5 amino acids out of the continuous chain at one, two or three positions are deleted or added and/or 1 to 4 amino acids at the N-terminus or 1 to 40 amino acids at the C-terminus are deleted. The invention further relates to a method for detecting and/or manipulating a protein of interest wherein the protein of interest is incorporated into a fusion protein with the AGT mutants of the invention. Another object of the invention are AGT fusion proteins comprising such AGT mutants and the protein of interest.
摘要翻译: 本发明涉及AGT突变体,当与野生型人AGT相比时,显示出选自(a)减少的DNA相互作用的两种或更多种有利性质; (b)表达的蛋白质在不再限于细胞核的真核细胞中的定位; (c)提高作为可溶性蛋白质的表达产率和改善各种宿主的稳定性; (d)改善氧化条件下的稳定性; (e)在与底物反应后改善细胞内的稳定性; (f)在与底物反应之前和之后提高细胞外的稳定性; (g)提高体外溶解度; (h)改善对O6-烷基鸟嘌呤底物的反应性; (i)降低对DNA基底层的反应性; 和(j)对N9取代的O6-烷基鸟嘌呤底物的反应性降低。 具有上述改进性质的这种AGT突变体是突变体,其中野生型人AGT的1至25个氨基酸被其它氨基酸取代,并且在一个,两个或三个位置上连续链中任选地1至5个氨基酸是 在N-末端缺失或添加和/或1至4个氨基酸或C末端的1至40个氨基酸被缺失。 本发明还涉及用于检测和/或操纵感兴趣的蛋白质的方法,其中将目的蛋白质与本发明的AGT突变体掺入融合蛋白中。 本发明的另一个目的是包含这种AGT突变体和目的蛋白质的AGT融合蛋白。
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公开(公告)号:US08367361B2
公开(公告)日:2013-02-05
申请号:US13012234
申请日:2011-01-24
CPC分类号: G01N33/531 , C07K2319/20 , C07K2319/60
摘要: A method of using O6-alkylguanine-DNA alkyltransferase (AGT) is disclosed for transferring a label from a substrate to a fusion protein comprising the AGT. This allows the detection and/or manipulating of the fusion protein, both in vitro and in vivo, by attaching molecules to the fusion proteins that introduce a new physical or chemical property to the fusion protein. Examples of such molecules are, among others, spectroscopic probes or reporter molecules, affinity tags, molecules generating reactive radicals, cross-linkers, ligands mediating protein-protein interactions or molecules suitable for the immobilisation of the fusion protein.
摘要翻译: 公开了使用O6-烷基鸟嘌呤-DNA烷基转移酶(AGT)的方法,用于将标记从底物转移至包含AGT的融合蛋白。 这允许在体外和体内通过将融合蛋白连接到融合蛋白上来检测和/或操纵融合蛋白,所述融合蛋白向融合蛋白引入新的物理或化学性质。 此类分子的实例尤其是光谱探针或报告分子,亲和标签,产生反应性基团的分子,交联剂,介导蛋白质 - 蛋白质相互作用的配体或适合固定融合蛋白的分子。
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公开(公告)号:US20110201514A1
公开(公告)日:2011-08-18
申请号:US13012234
申请日:2011-01-24
CPC分类号: G01N33/531 , C07K2319/20 , C07K2319/60
摘要: A method of using O6-alkylguanine-DNA alkyltransferase (AGT) is disclosed for transferring a label from a substrate to a fusion protein comprising the AGT. This allows the detection and/or manipulating of the fusion protein, both in vitro and in vivo, by attaching molecules to the fusion proteins that introduce a new physical or chemical property to the fusion protein. Examples of such molecules are, among others, spectroscopic probes or reporter molecules, affinity tags, molecules generating reactive radicals, cross-linkers, ligands mediating protein-protein interactions or molecules suitable for the immobilisation of the fusion protein.
摘要翻译: 公开了使用O6-烷基鸟嘌呤-DNA烷基转移酶(AGT)的方法,用于将标记从底物转移至包含AGT的融合蛋白。 这允许在体外和体内通过将融合蛋白连接到融合蛋白上来检测和/或操纵融合蛋白,所述融合蛋白向融合蛋白引入新的物理或化学性质。 此类分子的实例尤其是光谱探针或报告分子,亲和标签,产生反应性基团的分子,交联剂,介导蛋白质 - 蛋白质相互作用的配体或适合固定融合蛋白的分子。
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