A Multivalent Structure-Specific RNA Binder with Extremely Stable Target Binding but Reduced Interaction with Nonspecific RNAs

Cited 2 time in webofscience Cited 0 time in scopus
  • Hit : 205
  • Download : 0
By greatly enhancing binding affinities against target biomolecules, multivalent interactions provide an attractive strategy for biosensing. However, there is also a major concern for increased binding to nonspecific targets by multivalent binding. A range of charge-engineered probes of a structure-specific RNA binding protein PAZ as well as multivalent forms of these PAZ probes were constructed by using diverse multivalent avidin proteins (2-mer, 4-mer, and 24-mer). Increased valency vastly enhanced the binding stability of PAZ to structured target RNA. Surprisingly, nonspecific RNA binding of multivalent PAZ can be reduced even below that of the PAZ monomer by controlling negative charges on both PAZ and multivalent avidin scaffolds. The optimized 24-meric PAZ showed nearly irreversible binding to target RNA with negligible binding to nonspecific RNA, and this ultra-specific 24-meric PAZ probe allowed SERS detection of intact microRNAs at an attomolar level.
Publisher
WILEY-V C H VERLAG GMBH
Issue Date
2017-12
Language
English
Article Type
Article
Keywords

MICRORNA; NANOWIRE; CELLS; HEMAGGLUTININ; INHIBITORS; INFLUENZA; PROTEINS; LIGAND; PROBES

Citation

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, v.56, no.50, pp.15998 - 16002

ISSN
1433-7851
DOI
10.1002/anie.201709153
URI
http://hdl.handle.net/10203/238166
Appears in Collection
CH-Journal Papers(저널논문)
Files in This Item
There are no files associated with this item.
This item is cited by other documents in WoS
⊙ Detail Information in WoSⓡ Click to see webofscience_button
⊙ Cited 2 items in WoS Click to see citing articles in records_button

qr_code

  • mendeley

    citeulike


rss_1.0 rss_2.0 atom_1.0