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- 详细信息
- 文献和实验
- 技术资料
- 库存:
296
- 英文名:
Recombinant Human Protein Disulfide Isomerase
- 保质期:
长期
- 供应商:
北京百奥莱博科技有限公司
- 保存条件:
-20℃
- 规格:
20μg
特别提示:包括重组人PDI在内,本公司的所有产品仅可用于科研实验,严禁用于临床医疗及其他非科研用途!
产品名称:重组人PDI
英文名称:Recombinant Human Protein Disulfide Isomerase
产品货号:GS4817
产品规格:20μg
分子量:Approximately 56.6kDa,a single non-glycosylated polypeptide chain containing 502 amino acids.(MRGSGSHHHHHH-PDI).
储存条件:冷冻(-20℃)
概述
Protein disulfide isomerases(PDIs)constitute a family of structurally related enzymes which catalyze disulfide bonds formation,reduction,or isomerization of newly synthesized proteins in the lumen of the endoplasmic reticulum(ER).They act also as chaperones,and are,therefore,part of a quality-control system for the correct folding of the proteins in the same subcellular compartment.PDI has been found to have moderate effects(25-fold)on the rate of oxidative folding of proteins in vitro.Recombinant Human Protein Disulfide Isomerase is involved in disulphide-bond formation and isomerization,as well as the reduction of disulphide bonds in proteins.Recombinant PDI has been found to have moderate effects(25-fold)on the rate of oxidative folding of proteins in vitro.
使用说明
This material is offered by Biorab Biotech for research,laboratory or further evaluation purposes.NOT FOR HUMAN USE.
技术规格
| 外观 | Sterile Filtered White lyophilized(freeze-dried)powder. |
| 纯度 | >95%by SDS-PAGE and HPLC analyses. |
| 来源 | Escherichia coli. |
| 成分 | Lyophilized from a 0.2μmfiltered concentrated solution in PBS,pH 7.0. |
| 内毒素 | Less than 1EU/μg of rHuPDI as determined by LAL method. |
| 复溶 | We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom.Reconstitute in sterile distilled water or aqueous buffer containing 0.1%BSA to a concentration of 0.1-1.0mg/ml.Stock solutions should be apportioned into working aliquots and stored at ≤ -20 ℃.Further dilutions should be made in appropriate buffered solutions. |
| 氨基酸序列 | MRGSGSHHHH HHAPEEEDHV LVLRKSNFAE ALAAHKYLLV EFYAPWCGHC KALAPEYAKA AGKLKAEGSE IRLAKVDATE ESDLAQQYGV RGYPTIKFFR NGDTASPKEY TAGREADDIV NWLKKRTGPA ATTLPDGAAA ESLVESSEVA VIGFFKDVES DSAKQFLQAA EAIDDIPFGI TSNSDVFSKY QLDKDGVVLF KKFDEGRNNF EGEVTKENLL DFIKHNQLPL VIEFTEQTAP KIFGGEIKTH ILLFLPKSVS DYDGKLSNFK TAAESFKGKI LFIFIDSDHT DNQRILEFFG LKKEECPAVR LITLEEEMTK YKPESEELTA ERITEFCHRF LEGKIKPHLM SQELPEDWDK QPVKVLVGKN FEDVAFDEKK NVFVEFYAPW CGHCKQLAPI WDKLGETYKD HENIVIAKMD STANEVEAVK VHSFPTLKFF PASADRTVID YNGERTLDGF KKFLESGGQD GAGDDDDLED LEEAEEPDME EDDDQKAVKD EL |
| Thiol protein Reductase activity | Thiol Protein Reductase Activity is 0.001 Δ650nm/min-2,determined by measuring the turbidity increase at 650 nm due to insulin reduction.The activity is expressed as the ratio of the slope of a linear part of the turbidity curve to the lag time. |
| Isomerase activity | Isomerase Activity is 0.5 μmol active RNase A min-1 μmol PDI-1,according to the re-activation of reduced and denatured RNase A. |
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文献和实验强度、共溶剂和其他添加剂的存在与否等。 复性过程的添加剂: 1、共溶剂:如PEG6000-20000,据说可以可逆的修饰折叠中间体的疏水集团,此外由于阻止了蛋白质分子间的相互接触的机会,也可能对复性效率的提高起作用。一般的使用浓度在0.1%左右,具体条件可根据实验条件确定。 2、二硫键异构酶(PDI)和脯氨酸异构酶(PPI):PDI可以使错配的二硫键打开并重新组合,从而有利于恢复到正常的结构,此外在复性过程中蛋白质的脯氨酸两种构象间的转变需要较高能量,常常是复性过程中的限速步骤,而PPI的作用
:如PEG6000-20000,据说可以可逆的修饰折叠中间体的疏水集团,此外由于阻止了蛋白质分子间的相互接触的机会,也可能对复性效率的提高起作用。一般的使用浓度在0.1%左右,具体条件可根据实验条件确定。 2、二硫键异构酶(PDI)和脯氨酸异构酶(PPI):PDI可以使错配的二硫键打开并重新组合,从而有利于恢复到正常的结构,此外在复性过程中蛋白质的脯氨酸两种构象间的转变需要较高能量,常常是复性过程中的限速步骤,而PPI的作用是促进两种构象间的转变,从而促进复性的进行。 3、分子伴侣,即热休克
强度、共溶剂和其他添加剂的存在与否等。 复性过程的添加剂: 1、共溶剂:如PEG6000-20000,据说可以可逆的修饰折叠中间体的疏水集团,此外由于阻止了蛋白质分子间的相互接触的机会,也可能对复性效率的提高起作用。一般的使用浓度在0.1%左右,具体条件可根据实验条件确定。 2、二硫键异构酶(PDI)和脯氨酸异构酶(PPI):PDI可以使错配的二硫键打开并重新组合,从而有利于恢复到正常的结构,此外在复性过程中蛋白质的脯氨酸两种构象间的转变需要较高能量,常常是复性过程中的限速步骤,而PPI的作用
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