<?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%">Patil, Kiran M.</style></author><author><style face="normal" font="default" size="100%">Naik, Rangeetha J.</style></author><author><style face="normal" font="default" size="100%">Vij, Manika</style></author><author><style face="normal" font="default" size="100%">Yadav, Amit K.</style></author><author><style face="normal" font="default" size="100%">Kumar, Vaijayanti A.</style></author><author><style face="normal" font="default" size="100%">Ganguli, Munia</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%">Second generation, arginine-rich (R-X `-R)(4)-type cell-penetrating alpha-omega-alpha-peptides with constrained, chiral omega-amino acids (X `) for enhanced cargo delivery into cells</style></title><secondary-title><style face="normal" font="default" size="100%">Bioorganic &amp; Medicinal Chemistry Letters</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">(R-X-R)-motif</style></keyword><keyword><style  face="normal" font="default" size="100%">alpha-omega-alpha-Peptide</style></keyword><keyword><style  face="normal" font="default" size="100%">Cell-penetrating peptide</style></keyword><keyword><style  face="normal" font="default" size="100%">Constrained chiral amino acid</style></keyword><keyword><style  face="normal" font="default" size="100%">Peptidomimetics</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2014</style></year><pub-dates><date><style  face="normal" font="default" size="100%">SEP</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%">17</style></number><publisher><style face="normal" font="default" size="100%">PERGAMON-ELSEVIER SCIENCE LTD</style></publisher><pub-location><style face="normal" font="default" size="100%">THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND</style></pub-location><volume><style face="normal" font="default" size="100%">24</style></volume><pages><style face="normal" font="default" size="100%">4198-4202</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;The syntheses of novel N-aminoalkyl proline-derived spacers (X') in polycationic (R-X'-R)-motif cell-penetrating alpha-omega-alpha-peptides are described as improved molecular transporters and their structural features studied by CD. FACS analysis shows enhanced cellular uptake and confocal microscopy indicates predominantly cytoplasmic localization. The oligomers are efficient at transporting pDNA into cells. The chirality together with the hydrophobicity and flexibility derived from the spacer chain are found to have marked influence on the cell-penetrating and cargo delivery properties of the cell-penetrating peptides (CPPs). The peptides containing N-(3-aminopropyl)-D-proline spacers are found to be the best at cell penetration and cargo delivery in the present study. (C) 2014 Elsevier Ltd. All rights reserved.&lt;/p&gt;</style></abstract><issue><style face="normal" font="default" size="100%">17</style></issue><custom3><style face="normal" font="default" size="100%">Foreign</style></custom3><custom4><style face="normal" font="default" size="100%">1.19</style></custom4></record></records></xml>