<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Wagh, Atish A.</style></author><author><style face="normal" font="default" size="100%">Ghalawat, Monika</style></author><author><style face="normal" font="default" size="100%">Fernandes, Moneesha</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Replacement of loop residues in TBA by an abasic ethylene glycol spacer: effect on stability, structure and function**</style></title><secondary-title><style face="normal" font="default" size="100%">ChemistrySelect</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">aptamers</style></keyword><keyword><style  face="normal" font="default" size="100%">clotting time</style></keyword><keyword><style  face="normal" font="default" size="100%">ethylene glycol spacer</style></keyword><keyword><style  face="normal" font="default" size="100%">G-quadruplexes</style></keyword><keyword><style  face="normal" font="default" size="100%">nuclease stability</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2021</style></year><pub-dates><date><style  face="normal" font="default" size="100%">OCT </style></date></pub-dates></dates><volume><style face="normal" font="default" size="100%">6</style></volume><pages><style face="normal" font="default" size="100%">10648-10650</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">This article describes the synthesis of ethyleneglycol (E) phosphoramidite and its incorporation into the thrombin binding aptamer (TBA) sequence at loop positions. Circular dichroism (CD) study revealed no major disturbances in the secondary structure of TBA by the abasic E unit and the derived oligomers exhibited a typical antiparallel chair-like conformation similar to that of TBA. UV and CD spectroscopy, together with anti-coagulation and HPLC studies revealed that although nuclease stability was enhanced, and anti-coagulation reasonably good, the thermal stability of the quadruplexes was adversely affected.</style></abstract><issue><style face="normal" font="default" size="100%">39</style></issue><work-type><style face="normal" font="default" size="100%">Article</style></work-type><custom3><style face="normal" font="default" size="100%">Foreign</style></custom3><custom4><style face="normal" font="default" size="100%">2.109</style></custom4></record></records></xml>