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RNA ligands to human nerve growth factor
RNA ligands to human nerve growth factor.
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High affinity RNA ligands to human nerve growth factor (NGF) were selected from pools of random RNA using SELEX [Tuerk, C. and Gold, L. (1990) Science, 249, 505-510]. Nerve growth factor, which is a protein required for the development of neurons, is not known to bind nucleic acids as part of its natural function. We describe two of the selected RNA molecules in detail. One of them is highly structured, folding into a pseudoknot with an additional hairpin-loop; this structure provides salt-resistant binding to NGF. The other is unstructured and elevated salt concentrations inhibit its binding. These molecules compete with each other for NGF binding. Our RNAs may furnish useful diagnostic tools for the study of an important neurotrophic protein; additionally, they illustrate another example of the potential for nucleic acids to take part in novel binding interactions.
Binkley J, Allen P, Brown DM, Green L, Tuerk C, Gold L
Nucleic acids research
1995-08-25 00:00
23
16
3198-205
Base Sequence,Binding Sites,Binding, Competitive,Buffers,DNA Primers,Humans,Ligands,Molecular Sequence Data,Nerve Growth Factors,Nucleic Acid Conformation,RNA,Sodium Chloride,Buffers,DNA Primers,Ligands,Nerve Growth Factors,RNA,Sodium Chloride
Department of Molecular, Cellular and Developmental Biology, University of Colorado, Boulder 80309-0347, USA
Nucleic Acids Res.
NIGMS GM19963, NIGMS GM28685
0305-1048
5t0290
431
True
7545283
