TARGETING RECOMBINANT ANTIBODIES TO THE SURFACE OF ESCHERICHIA-COLI - FUSION TO A PEPTIDOGLYCAN ASSOCIATED LIPOPROTEIN

被引：91

作者：

FUCHS, P ^{[1
]}

BREITLING, F ^{[1
]}

DUBEL, S ^{[1
]}

SEEHAUS, T ^{[1
]}

LITTLE, M ^{[1
]}

机构：

[1] GERMAN CANC RES CTR,INST CELL & TUMOR BIOL,NEUENHEIMER FELD 280,W-6900 HEIDELBERG,GERMANY

来源：

BIO-TECHNOLOGY | 1991年 / 9卷 / 12期

关键词：

D O I：

10.1038/nbt1291-1369

中图分类号：

Q81 [生物工程学（生物技术）]; Q93 [微生物学];

学科分类号：

071005 ; 0836 ; 090102 ; 100705 ;

摘要：

To target recombinant antibodies to the surface of Escherichia coli, we have fused single-chain variable domains to its peptidoglycan associated lipoprotein (PAL). The fusion protein was able to bind antigen and was tightly bound to the murein layer of the cell envelope. Antibody-PAL had little effect on cell growth and viability. In contrast, the expression of single chain antibody alone eventually resulted in cell lysis. Immunofluorescence studies on unfixed cells showed that functional antibodies were accessible at the surface of intact bacteria. This could provide a means of isolating single cells producing specific antibodies from libraries in E. coli by fluorescence assisted cell sorting (FACS). Pal fusions may also be of general interest for the presentation of proteins at the surface of E. coli as, for example, in the production of live vaccines.

引用

页码：1369 / 1372

页数：4