Aptagen, LLC
Vascular Permeability Factor/Vascular Endothelial Growth Factor (NX-213) (ID# 7504)
![](https://www.aptagen.com/wp-content/uploads/Ni.png)
RNA
Nickel
Small Organic
800 nM (reported value)
Ni-NTA resin (200 uL) equilibrated with a buffer (50 mM NaCl, 7 mM MgCl2, 50 mM Tris-HCl (pH 7.5) was heated at 75C for 3 min and then slowly cool to RT. The Sample was loaded on the Ni-NTA matrix for 5 min under gentle agitation.
N/A°C
NA If the oligo is a known aptamer sequence: For binding studies, perform a refolding protocol to ensure proper function (i.e. binding to antigen or target). Refer to the aptamer reference source for the appropriate refolding parameters and binding conditions. Note: it is unknown whether aptamer functions properly without refolding.
This may be a biphasic binding. 1-2 strong binding sites with Kd 0.8 uM, 14~16 weak binding sites with Kd 29 uM.
5'-rGprGprGprAprGprAprGprGprAprUprAprCprUprAprCprAprCprGprUprGprGprAprAprAprAprAprCprCprAprAprCprAprAprAprUprUprGprGprGprAprAprAprAprAprUprGprUprUprAprAprGprGprGprUprCprCprAprCprUprUprCprAprUprGprCprCprAprUprUprGprCprAprUprGprUprAprGprCprAprGprAprAprGprCprUprUprCprCprGp-3'
![](/wp-content/uploads/apta-sequence-abbr.png)
89
28782.5
912100
Note: Information on this aptamer oligo was obtained from the literature and hasn't been validated by Aptagen.
Hoffman, H., et al. "Ni2+-binding RNA motifs with an asymmetric purine-rich internal loop and a G-A base pair." RNA Journal, 3 (1997): 1289-1300.
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