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- 详细信息
- 文献和实验
- 技术资料
- 库存:
21
- 英文名:
Recombinant Human ATG5 protein
- 保质期:
12个月
- 供应商:
上海帛科
- 保存条件:
-20 to -80 °C
- 规格:
50μg、100ug 、1mg
| 货号 | BK-DB4463 | 用途 | 仅供科研研究实验 |
| 纯度 | >90% as determined by SDS-PAGE | 预测分子量 | 32.37 kDa |
| 表达宿主 | E.coli | 种属 | Homo sapiens (Human) |
蛋白构建: A DNA sequence encoding the human ATG5 (Met1-Asp275) was fused with His tag
制剂: Supplied as solution form in PBS pH 7.5 or lyophilized from PBS pH 7.5.
运输方式: In general, proteins are provided as lyophilized powder/frozen liquid. They are shipped out with dry ice/blue ice unless customers require otherwise.
稳定性&储存: Use a manual defrost freezer and avoid repeated freeze thaw cycles.Store at 2 to 8 °C for one week .Store at -20 to -80 °C for twelve months from the date of receipt.
复溶: Reconstitute in sterile water for a stock solution.A copy of datasheet will be provided with the products, please refer to it for details.
分子别名: Autophagy protein 5,APG5-like,Apoptosis-specific protein,APG5L, ASP
背景介绍: Involved in autophagic vesicle formation. Conjugation with ATG12, through a ubiquitin-like conjugating system involving ATG7 as an E1-like activating enzyme and ATG10 as an E2-like conjugating enzyme, is essential for its function. The ATG12-ATG5 conjugate acts as an E3-like enzyme which is required for lipidation of ATG8 family proteins and their association to the vesicle membranes. Involved in mitochondrial quality control after oxidative damage, and in susequent cellular longevity. Plays a critical role in multiple aspects of lymphocyte development and is essential for both B and T lymphocyte survival and proliferation. Required for optimal processing and presentation of antigens for MHC II. Involved in the maintenance of axon morphology and membrane structures, as well as in normal adipocyte differentiation. Promotes primary ciliogenesis through removal of OFD1 from centriolar satellites and degradation of IFT20 via the autophagic pathway.
重组蛋白质的可溶性鉴定:
1. 将按上法诱导培养后收集的菌体重悬于裂解液 1 (Lysis buffer under native conditions )中,然后在-80 oC 低温冰箱中放置 10 min。
2. 冰中解冻。
3. 在冰浴上用超声破碎仪破菌 6 次, 每次 10 sec,间歇 10 sec,电压 200-300 V。
4. 10000g,4oC,离心 20min,取上清(为溶液 A), - 20 oC 保存; 另将沉淀用 同样裂解液 1 溶解(为溶液 B),同样 -20 oC 保存,供后继分析使用。
5. 将上述 A、B 溶液和诱导前后的细菌进行 SDS-PAGE 电泳, 考马斯亮蓝染色, 比较分析重组蛋白质的溶解性。如果诱导表达的蛋白质位于 A 溶液中, 则为可溶性蛋白;如果是在 B 溶液中,则为非可溶蛋白。
重组蛋白质的分离纯化:
1. 将菌体沉淀溶于适量裂解液 2(Lysis buffer under denaturing conditions )中,室温下搅拌和吹打沉淀,避免泡沫生成。
2. 10000g ,4 oC,离心 30 min,收集上清液。
3. 将 Ni-NTAAgarose 充填柱子,并连接于 Pharmarcia 低压液相层析系统,用 5 倍柱体积的裂解液 2 平衡 Ni-NTAAgarose,调节 A280 值至零线。
4. 将适量上清液上样到 Ni-NTAAgarose 柱子中, 并用 lysis buffer 冲洗至 A280 值低于 0.01。
5. 分别用 5 ~ 10 倍柱体积的清洗液 1 和清洗液 2(Washbuffer 1 and 2)清洗柱 子,直至 A280 值低于 0.01。
6. 用洗脱液(Elution buffer)洗脱重组蛋白质, 在 A280 值监测下,收集出现峰 线后含有重组蛋白的所有洗脱液。
表达载体在基因工程有以下几种元件:
(1)选择标志的编码序列;
(2)可控转录的启动子;
(3)转录调控序列(转录终止子,核糖体结合位点);
(4)一个多限制酶切位点接头;
(5)宿主体内自主复制的序列。
重组蛋白质的诱导表达:
1. 挑取转化有质粒的单菌落, 接种于 3ml 选择性 LB 液体培养基中, 37 oC,250 rpm/min 振摇培养过夜。
2. 次日将培养过夜的菌液 500 μl 再接种于 10ml(1:20)选择性 LB 液体培养基 中, 37 oC,250 rpm/min 振摇培养至光密度(OD600=0.6)时,取 1 ml 样本作 为诱导前标本, 10000g 离心 1min 收集菌体沉淀,-20 oC 冻存备用。
3. 加入 1 mol/L IPTG 于菌液中,使 IPTG 终浓度为 1 mM ,37 oC ,250 rpm/min 振摇培养 4 ~ 5 小时。取 1 ml 样本作为诱导后标本,同上法收集菌体沉淀, -20 oC 冻存备用。
4. 将诱导前后菌体沉淀用 20 ~ 40 μl PBS(pH= 8.0)重悬, 加入等体积的 2×SDS 上样缓冲液, 煮沸加热 5min,SDS 聚凝胶(SDS-PAGE)电泳分离 , 考马斯亮蓝染色 3 小时后,脱色观察结果。
5. 选取诱导成功的细菌克隆,扩大诱导规模,收集菌体沉淀,于- 20 oC 保存,准备做下一步分析及纯化。
公司出售的相关产品:
| Recombnant Human Bcl-XL | Rabbit Anti-Human IgM / Cy5 |
| 辣根过氧化物酶标记的兔抗小鼠k链 | Rabbit Anti-Bovine IgG H&L / PE-Cy3 |
| 辣根过氧化物酶标记兔抗人IgA | Rabbit Anti-Bovine IgM / AF647 |
| Cy3标记的小鼠抗人IgG H&L | Donkey Anti-Guinea Pig IgG H&L / PE-Cy5 |
| 辣根过氧化物酶标记的兔抗猫IgG H&L | Rabbit Anti-Dog IgG H&L / PE-Cy5 |
| Cy5.5标记的兔抗羊IgM | Mouse Anti-Goat IgG H&L / PE-Cy7 |
| Cy7标记的羊抗豚鼠IgG H&L | Goat Anti-Rabbit IgG H&L / AF750 |
| Alexa Fluor 488标记的兔抗羊IgM | β-甘露糖苷酶溶酶体样蛋白封闭多肽 |
| PE-Cy3标记的兔抗牛IgG H&L | Rabbit Anti-Goat IgM / AF488 |
| Alexa Fluor 647标记的兔抗牛IgM | Goat Anti-Guinea Pig IgG H&L / Cy7 |
| PE-CY5标记的兔抗狗IgG H&L | Rabbit Anti-Goat IgM / Cy5.5 |
| PE-CY5标记的驴抗豚鼠IgG H&L | Rabbit Anti-Cat IgG H&L / HRP |
| PE-Cy7标记的小鼠抗羊IgG H&L | Recombinant Human ATG5 proteinMouse Anti-Human IgG H&L / Cy3 |
| Alexa Fluor 750标记的羊抗兔IgG H&L | Rabbit Anti-Human IgA / HRP |
| Cy5标记的兔抗人IgM | Rabbit Anti-Mouse Kaa light chain / HRP |
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