@article { ISI:000320838200014, title = {C-3 {\textquoteleft}-endo-puckered pyrrolidine containing PNA has favorable geometry for RNA binding: novel ethano locked PNA (ethano-PNA)}, journal = {Bioorganic \& Medicinal Chemistry}, volume = {21}, number = {14}, year = {2013}, month = {JUL}, pages = {4092-4101}, publisher = {PERGAMON-ELSEVIER SCIENCE LTD}, address = {THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND}, abstract = {

A novel peptide nucleic acid (PNA) analogue is designed with a constraint in the aminoethyl segment of the aegPNA backbone so that the dihedral angle beta is restricted within 60-80 degrees, compatible to form PNA:RNA duplexes. The designed monomer is further functionalized with positively charged amino-/guanidino-groups. The appropriately protected monomers were synthesized and incorporated into aegPNA oligomers at predetermined positions and their binding abilities with cDNA and RNA were investigated. A single incorporation of the modified PNA monomer into a 12-mer PNA sequence resulted in stronger binding with complementary RNA over cDNA. No significant changes in the CD signatures of the derived duplexes of modified PNA with complementary RNA were observed. (C) 2013 Elsevier Ltd. All rights reserved.

}, keywords = {Antisense therapeutics, Conformationally constrained PNA, Diagnostics, Peptide nucleic acid (PNA)}, issn = {0968-0896}, doi = {10.1016/j.bmc.2013.05.015}, author = {Banerjee, Anjan and Kumar, Vaijayanti A.} } @article { ISI:000315060600030, title = {Synthesis of all four nucleoside-based beta-amino acids as protected precursors for the synthesis of polyamide-DNA with alternating alpha-amino acid and nucleoside-beta-amino acids}, journal = {Tetrahedron}, volume = {69}, number = {3}, year = {2013}, month = {JAN}, pages = {1210-1216}, publisher = {PERGAMON-ELSEVIER SCIENCE LTD}, address = {THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND}, abstract = {

A simple approach is described for the synthesis of all four orthogonally protected nucleoside-beta-amino acids from commercially available starting materials. Synthesis of a model tetrameric DNA sequence in 5{\textquoteright}-3{\textquoteright}direction employing trityl strategy and glycine as alpha-amino acid alternating with nucleoside-beta amino acids is described. (C) 2012 Elsevier Ltd. All rights reserved.

}, keywords = {Antisense therapeutics, Neutral DNA analogues, Nucleoside-beta amino acids}, issn = {0040-4020}, doi = {10.1016/j.tet.2012.11.028}, author = {Seema Bagmare and Varada, Manojkumar and Banerjee, Anjan and Kumar, Vaijayanti A.} } @article { ISI:000353218700026, title = {Beta, gamma-Bis-substituted PNA with configurational and conformational switch: preferred binding to cDNA/RNA and cell-uptake studies}, journal = {Chemical Communications}, volume = {51}, number = {36}, year = {2015}, month = {MAR}, pages = {7693-7696}, publisher = {ROYAL SOC CHEMISTRY}, type = {Article}, address = {THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLAND}, abstract = {

(S,S)- and (R,R)-beta,gamma-Bis-substituted PNAs were synthesized from the C-2 symmetric vicinal diamine system embedded in 1,4 dihydroxybutane and 1,4-dimethoxybutane scaffolds. (R,R)-beta,gamma-Bis-methoxymethyl-PNA derived from D-tartaric acid was found to be in the right configuration and conformation to be an excellent mimic of PNA, endowed with superior ability to enter into cells.

}, issn = {1359-7345}, doi = {10.1039/c5cc00891c}, author = {Bose, Tanaya and Banerjee, Anjan and Nahar, Smita and Maiti, Souvik and Kumar, Vaijayanti A.} } @article { ISI:000359962900040, title = {Glycine-linked nucleoside-beta-amino acids: polyamide analogues of nucleic acids}, journal = {Bioconjugate Chemistry}, volume = {26}, number = {8}, year = {2015}, month = {AUG}, pages = {1737-1742}, publisher = {AMER CHEMICAL SOC}, address = {1155 16TH ST, NW, WASHINGTON, DC 20036 USA}, abstract = {

3{\textquoteright}-5{\textquoteright}-Deoxyribose-sugar-phoshate backbone in DNA is completely replaced by 2{\textquoteright}-deoxyribonucleoside-based beta-amino acids interlinked by glycine to create uncharged polyamide DNA with 3{\textquoteright}-5{\textquoteright}-directionality. These oligomers as conjugates of alpha-amino acids and nucleoside-beta-amino acids bind strongly and sequence-specifically only to the antiparallel complementary RNA and DNA.

}, issn = {1043-1802}, doi = {10.1021/acs.bioconjchem.5b00296}, author = {Banerjee, Anjan and Seema Bagmare and Varada, Manojkumar and Kumar, Vaijayanti A.} }