scholarly journals Development of a nanobody tagged with streptavidin-binding peptide and its application in a Luminex fluoroimmunoassay for alpha fetal protein in serum

RSC Advances ◽  
2020 ◽  
Vol 10 (40) ◽  
pp. 23767-23774
Author(s):  
Qi Chen ◽  
Danyang Sun ◽  
Hua Pei ◽  
Benchao Su ◽  
Kunlu Bao ◽  
...  

A nanobody/streptavidin-binding peptide fusion protein was developed and proved to be a very promising immunological diagnosis reagent for disease-related biomarkers.

2001 ◽  
Vol 382 (11) ◽  
Author(s):  
Nicolas Aubrey ◽  
Christiane Devaux ◽  
Eric di Luccio ◽  
Max Goyffon ◽  
Hervé Rochat ◽  
...  

2001 ◽  
Vol 23 (3) ◽  
pp. 440-446 ◽  
Author(s):  
Anthony D. Keefe ◽  
David S. Wilson ◽  
Burckhard Seelig ◽  
Jack W. Szostak

2013 ◽  
Vol 102 (4) ◽  
pp. 1180-1186 ◽  
Author(s):  
Kazuaki Yuasa ◽  
Eitoyo Kokubu ◽  
Katsutoshi Kokubun ◽  
Kenichi Matsuzaka ◽  
Kiyotaka Shiba ◽  
...  

2016 ◽  
Vol 27 (8) ◽  
pp. 1310-1319 ◽  
Author(s):  
Omer Abraham ◽  
Karnit Gotliv ◽  
Anna Parnis ◽  
Gaelle Boncompain ◽  
Franck Perez ◽  
...  

Systems that allow the control of protein traffic between subcellular compartments have been valuable in elucidating trafficking mechanisms. Most current approaches rely on ligand or light-controlled dimerization, which results in either retardation or enhancement of the transport of a reporter. We developed an alternative approach for trafficking regulation that we term “controlled unmasking of targeting elements” (CUTE). Regulated trafficking is achieved by reversible masking of the signal that directs the reporter to its target organelle, relying on the streptavidin–biotin system. The targeting signal is generated within or immediately after a 38–amino acid streptavidin-binding peptide (SBP) that is appended to the reporter. The binding of coexpressed streptavidin to SBP causes signal masking, whereas addition of biotin causes complex dissociation and triggers protein transport to the target organelle. We demonstrate the application of this approach to the control of nuclear and peroxisomal protein import and the generation of biotin-dependent trafficking through the endocytic and COPI systems. By simultaneous masking of COPI and endocytic signals, we were able to generate a synthetic pathway for efficient transport of a reporter from the plasma membrane to the endoplasmic reticulum.


2011 ◽  
Vol 8 (5) ◽  
pp. 1720-1728 ◽  
Author(s):  
Tao Wang ◽  
Nikita Kulkarni ◽  
Gerard G. M. D’Souza ◽  
Valery A. Petrenko ◽  
Vladimir P. Torchilin

2013 ◽  
Vol 24 (19) ◽  
pp. 3123-3132 ◽  
Author(s):  
Takaaki Yabuki ◽  
Fumiko Morimoto ◽  
Yuichiro Kida ◽  
Masao Sakaguchi

Translocation of the N-terminus of a type I signal anchor (SA-I) sequence across the endoplasmic reticulum membrane can be arrested by tagging with a streptavidin-binding peptide tag (SBP tag) and trapping by streptavidin. In the present study, we first examine the affinity required for the translocation arrest. When the SBP tag is serially truncated, the ability for arrest gradually decreases. Surface plasmon resonance analysis shows that an interaction as strong as 10−8 M or a smaller dissociation constant is required for trapping the topogenesis of a natural SA-I sequence. Such truncated tags, however, become effective by mutating the SA-I sequence, suggesting that the translocation motivation is considerably influenced by the properties of the SA-I sequence. In addition, we introduce the SBP tag into lumenal loops of a multispanning membrane protein, human erythrocyte band 3. Among the tagged loops between transmembrane 1 (TM1) and TM8, three loops are trapped by cytosolic streptavidin. These loops are followed by TM sequences possessing topogenic properties, like the SA-I sequence, and translocation of one loop is diminished by insertion of a proline into the following TM sequence. These findings suggest that the translocation of lumenal loops by SA-I–like TM sequences has a crucial role in topogenesis of multispanning membrane proteins.


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