TANG Siyuan, LIN Dongqiang, TONG Hongfei, et al. Preparation and separation of Fab and Fc fragments from human immunoglobulin G with papain digestion[J]. CIESC Journal, 2013, (5): 1750-1756.
TANG Siyuan, LIN Dongqiang, TONG Hongfei, et al. Preparation and separation of Fab and Fc fragments from human immunoglobulin G with papain digestion[J]. CIESC Journal, 2013, (5): 1750-1756.DOI: 10.3969/j.issn.0438-1157.2013.05.034.
For the preparation of Fab and Fc fragments with high purity
human immunoglobulin G (hIgG) was treated with papain and its purification with chromatographic techniques was explored.The concentration of cystein
papain addition
pH and incubation time were optimized to improve digestion efficiency with papain
and conversion of IgG could reach more than 98%.Then Protein A affinity chromatography and DEAE anion-exchange chromatography were used to separate the Fab and Fc fragments from the digestion mixture of hIgG.Based on the SEC-HPLC analysis
the purity of Fab fragment was 96.6% with the yield of 40.1%
while the purity of Fc fragment was 95.7% with the yield of 72.6%.