A minimalist peptide ligand for IgG by minimizing the binding domain of protein A
文献类型:期刊论文
作者 | Wang, Weiying1,2; Hao, Dongxia2; Ge, Jia2; Zhao, Lan2; Huang, Yongdong2; Zhu, Kai2; Wu, Xvexing2; Su, Zhiguo2; Yu, Rong1; Ma, Guanghui2 |
刊名 | BIOCHEMICAL ENGINEERING JOURNAL |
出版日期 | 2019-11-15 |
卷号 | 151页码:8 |
ISSN号 | 1369-703X |
关键词 | Affinity Purification Chromatography Minimalist Peptide Protein a Igg Rational Design |
DOI | 10.1016/j.bej.2019.107327 |
英文摘要 | Large scale application of antibody related drug has been promoting the development of short ligand with low cost and high stability for affinity chromatographic purification of immunoglobulin G (IgG). This study presents a strategy to design a short peptide ligand by minimizing the IgG binding portion from a commercial ligand of Protein A. A short hexapeptide (FYEILH) was thus screened out by the real screening technique of STD-NMR. It presented a comparable binding activity to Protein A, with the dissociation constant (K-d) of 1.8 x 10(-6) mol/L, the static binding capacity of 49.7 mg/mL, and the purity of 94% for hIgG from chromatographic purification of serum feedstock in a single step. Epitope mapping analysis by STD-NMR indicated that the carboxy groups of the charged residue E (glutamic acid) in FYEILH was the most adjacent part in binding with hIgG molecule and thus the electronic interactions among them was the dominating binding mechanism. Such mechanism was a little different from Protein A and consequently leaded to its much milder chromatographic conditions of loading at pH 6.0 and eluting at 0.5 mol/L NaCl. The study provided a strategy of reducing larger binding domains of huge Protein A molecule to smaller functional peptide ligand, and offered a potential alternative ligand with low synthesis cost for IgG purification. |
WOS关键词 | Carbohydrate-mimetic Peptide ; Affinity-chromatography ; Fc-binding ; Monoclonal-antibodies ; Immunoglobulin-g ; Std-nmr ; Purification ; Design ; Capacity ; Epitope |
资助项目 | Beijing Municipal Natural Science Foundation[L160012] ; National Natural Science Foundation of China[21676275] ; National Natural Science Foundation of China[21336010] |
WOS研究方向 | Biotechnology & Applied Microbiology ; Engineering |
语种 | 英语 |
出版者 | ELSEVIER |
WOS记录号 | WOS:000518140400033 |
资助机构 | Beijing Municipal Natural Science Foundation ; National Natural Science Foundation of China |
源URL | [http://ir.ipe.ac.cn/handle/122111/39494] |
专题 | 中国科学院过程工程研究所 |
通讯作者 | Hao, Dongxia; Yu, Rong; Ma, Guanghui |
作者单位 | 1.Sichuan Univ, West China Sch Pharm, Key Lab Drug Targeting & Drug Delivery Syst, Minist Educ, Chengdu 610041, Sichuan, Peoples R China 2.Chinese Acad Sci, Inst Proc Engn, State Key Lab Biochem Engn, Beijing 100190, Peoples R China |
推荐引用方式 GB/T 7714 | Wang, Weiying,Hao, Dongxia,Ge, Jia,et al. A minimalist peptide ligand for IgG by minimizing the binding domain of protein A[J]. BIOCHEMICAL ENGINEERING JOURNAL,2019,151:8. |
APA | Wang, Weiying.,Hao, Dongxia.,Ge, Jia.,Zhao, Lan.,Huang, Yongdong.,...&Ma, Guanghui.(2019).A minimalist peptide ligand for IgG by minimizing the binding domain of protein A.BIOCHEMICAL ENGINEERING JOURNAL,151,8. |
MLA | Wang, Weiying,et al."A minimalist peptide ligand for IgG by minimizing the binding domain of protein A".BIOCHEMICAL ENGINEERING JOURNAL 151(2019):8. |
入库方式: OAI收割
来源:过程工程研究所
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