An efficient route is reported to 5- and 6-carboxy-X-rhodamines (compounds 1 and 2) that contain multiple n-propylene or gamma,gamma-dimethylpropylene groups bridging terminal nitrogen atoms and the central xanthene core. Gram quantities of these dyes are synthesized from inexpensive starting materials. The isolated products are activated by selective transformation of the carboxylic acid group into N-hydroxysuccinimidyl esters in situ and then conjugated with an amino group of a molecule of interest.
Synthesis of novel piperidinyl linker based ET cassettes and terminators is described. These novel terminators are evaluated in the DNA sequencing experiments using thermostable DNA polymerase.
Unnatural amino acid derived FRET cassettes, terminators and their DNA sequencing potential
作者:Satyam Nampalli、Weihong Zhang、T Sudhakar Rao、Haiguang Xiao、Lakshmi P Kotra、Shiv Kumar
DOI:10.1016/s0040-4039(02)00196-x
日期:2002.3
An unnatural, tri-functional amino acid. t-BOC-L-para-amino-phenylalanine (1). was utilized in the design and syntheses of highly efficient FRET cassettes (4-7) and converted them into 2'.3'-dideoxynucleotide terminators (8-11) for investigating DNA sequencing potential coupled with a thermostable DNA polymerase. Thermo Sequenase(TM) II . (C) 2002 Elsevier Science Ltd. All rights reserved.
Synthesis of 5- and 6-Carboxy-X-rhodamines
作者:Md. Jashim Uddin、Lawrence J. Marnett
DOI:10.1021/ol801904k
日期:2008.11.6
An efficient route is reported to 5- and 6-carboxy-X-rhodamines (compounds 1 and 2) that contain multiple n-propylene or gamma,gamma-dimethylpropylene groups bridging terminal nitrogen atoms and the central xanthene core. Gram quantities of these dyes are synthesized from inexpensive starting materials. The isolated products are activated by selective transformation of the carboxylic acid group into N-hydroxysuccinimidyl esters in situ and then conjugated with an amino group of a molecule of interest.
FLUORESCENCE RESONANCE ENERGY TRANSFER DYE NUCLEOTIDE TERMINATORS: A NEW SYNTHETIC APPROACH FOR HIGH-THROUGHOUT DNA SEQUENCING
作者:Satyam Nampalli、Mahesh Khot、John R. Nelson、Parke K. Flick、Carl W. Fuller、Shiv Kumar
DOI:10.1081/ncn-100002307
日期:2001.3.31
Fluorescence resonance energy transfer (FRET) based dye-nucleotide terminators (10-13) were designed, synthesized, and formulated with Thermo Sequenase(TM) II DNA polymerase into a robust kit for high throughput DNA sequencing. The key energy transfer (ET) rigid and linear linker (2), required for the syntheses of energy transfer cassettes (6-9) was synthesized via Heck coupling reaction on t-Boc-L-4-iodo-phenylalanine (1) with N-TFA-propargylamine.
FOUR COLOR FRET DYE NUCLEOTIDE TERMINATORS FOR DNA SEQUENCING
The synthesis of four color set of energy transfer-dye terminators (8a-8d) starting from p-iodo-beta -phenylalanine was accomplished and their utility in the sequencing reactions has been evaluated.