一、重組抗體表達(dá)
重組抗體被廣泛地應(yīng)用在科學(xué)研究、免疫診斷及治療性抗體領(lǐng)域??扑固股锷锿瞥鯟ASRATM保證型重 組抗體表達(dá)服務(wù)。科斯坦生物生物自有的哺乳表達(dá)系統(tǒng)高產(chǎn)量pATX系列載體及馴化293系列和CHO系列細(xì)胞, 能實(shí)現(xiàn)全長抗體以及多種形式的重組抗體片段的高效分泌表達(dá)。無需免疫,可實(shí)現(xiàn)單克隆抗體及其它 形式重組抗體的高產(chǎn)和可重復(fù)生產(chǎn)。
二、服務(wù)內(nèi)容
CSRATM保證型重組抗體表達(dá)服務(wù)內(nèi)容
客戶提供 | 抗體需求量 | 純度/內(nèi)毒素/proteinA/G檢測殘留 | 項(xiàng)目周期 | 交付內(nèi)容 |
抗體序列 | 1mg-5mg | >95% by SDS-PAGE or HPLC Endotoxin <1EU/mg Concertration>1mg/L | 6-8周 | 基因合成的質(zhì)粒 |
5mg-500mg | 重組抗體 | |||
500mg-1g | 重組抗體表達(dá)報告 |
三、服務(wù)流程
四、武漢科斯坦生物優(yōu)勢
1.科斯坦生物擁有抗體藥物研發(fā)專家和技術(shù)支持團(tuán)隊(duì),可對您感興趣的抗體講行個性化的序列優(yōu)化設(shè)計(jì),提高重組抗體表達(dá)量。全長抗體分泌表達(dá)量可達(dá)100-300mg/L實(shí)現(xiàn)一次表達(dá)終身受益。
2.豐富的抗體表達(dá)經(jīng)驗(yàn)和技術(shù)團(tuán)隊(duì),已經(jīng)成功表達(dá)過多種形式的全長抗體(HumanIgG1~4,Mous e IgG2b,MouseIgG2a,RabbitIgG等)抗體片段(scfv,F(xiàn)ab,tandem-scfv,VHH,F(xiàn)c融合蛋白。 bi-specificantibody等)。
3.科斯坦生物擁有多種服務(wù)平臺,在實(shí)現(xiàn)重組抗體設(shè)計(jì)表達(dá)和純化的同時,同時可以實(shí)現(xiàn)抗體的活性驗(yàn)證。目前已經(jīng)設(shè)計(jì)完成了多個嵌合抗體的表達(dá)及活性驗(yàn)證,并對部分人鼠嵌合抗體進(jìn)行人源化設(shè)計(jì)驗(yàn)證。真正實(shí)現(xiàn)一站式服務(wù)。
五、案例展示
Recombinant Antibody Production Cases
Expression caseI:scFv
Expression system:Bsubtilis ExpressionSystem
Service Type:Recombinant Protein Production
Conclusion: Total obtained 37mg scFy from 1L scale up purification, purity is about 90%.
Figure 1. Expression result
Figure 2. Target scFv purification profile
Figure 3. Final sample QC
Expression caseⅡ:Bi-specific Antibody
Expression System:Mammalian 293F Expression System
Service Type: Recombinant Antibody Production
Conclusion:Bi-specific antibody A total obtained 17.35mg per liter of culture, purity> 90% Bi-specific antibody B total obtained 16.23mg per liter of culture, purity> 85%.
Figure 2. Target protein purification profile
Figure 3. Final sample QC
Expression casellI: IgG-like bi-specific antibody
Expression System:Mammalian CHO-S Expression System
Service Type:Recombinant Antibody Production
Conclusion:Total obtained IgG-like: 104mg from 1L scale up purification, purity> 90%
Figure 1. Expression result
Figure 2. Target protein purification profile
Figure 3. Final sample QC
Expression caselII: HH expressed with tag and tag removal
Service Type:Recombinant Antibody Production
Conclusion: Total obtained VHH without any tag: 13.2mg from 1L scale up purification after tag removal, purity> 90%
Target protein purification profile in native condition.
Tag cleavage results.
1. Before cleavage sample 2. After cleavage sample
Final sample QC
六、咨詢與訂購
QQ:422450190
余先生:15926423062
郵件:info@chemstan.com