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Open access
Journal of Genetic Engineering and Biotechnology, volume 20, issue 1, publication number 95

A sequential toggle cell-SELEX DNA aptamer for targeting Staphylococcus aureus, Streptococcus agalactiae, and Escherichia coli bacteria

Arizah Kusumawati 1, 2
Apon Zaenal Mustopa 2
I Wayan Teguh Wibawan 3, 4
Agus Setiyono 5
Mirnawati Bachrum Sudarwanto 3
Publication typeJournal Article
Publication date2022-07-01
Quartile SCImago
Q2
Quartile WOS
Impact factor3.3
ISSN1687157X, 20905920
Genetics
Biotechnology
Abstract
Mastitis is an inflammation of the mammary glands caused by a microbial infection. The common bacteria causing this infection in dairy farms are Staphylococcus aureus, Streptococcus agalactiae, and Escherichia coli. The aptamer is a new biosensor platform for detecting pathogens; however, its use for simultaneous detection of S. aureus, S. agalactiae, and E. coli bacteria has not been reported. This study’s objective is to isolate and characterize polyclonal DNA aptamer with broad reactivity to the mastitis bacteria S. aureus, S. agalactiae, and E. coli using a sequential toggle cell-SELEX. The DNA aptamer pool from SELEX 15 was inserted into the pGEM-T easy plasmid. Furthermore, the transformant clones were selected by PCR colony, plasmid isolation, and sequencing. Six DNA aptamers, consisting of S15K3, S15K4, S15K6, S15K13, S15K15, and S15K20 with a constant region and the right size of 81 bp were derived from the sequencing analysis. The secondary structure of the DNA was predicted using Mfold software. The DNA was analyzed with binding characteristics, including binding capacity and affinity (Kd), using qPCR. The results indicated aptamer S15K15 has the highest binding ability into S. agalactiae, while S15K13 performed binding capacity most to E. coli EPEC 4, and S15K3 has the highest capacity of binding to S. aureus BPA-12. Aptamer S15K3 has the best binding characteristics on all three bacterial targets.

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Kusumawati A. et al. A sequential toggle cell-SELEX DNA aptamer for targeting Staphylococcus aureus, Streptococcus agalactiae, and Escherichia coli bacteria // Journal of Genetic Engineering and Biotechnology. 2022. Vol. 20. No. 1. 95
GOST all authors (up to 50) Copy
Kusumawati A., Mustopa A. Z., Wibawan I. W. T., Setiyono A., Sudarwanto M. B. A sequential toggle cell-SELEX DNA aptamer for targeting Staphylococcus aureus, Streptococcus agalactiae, and Escherichia coli bacteria // Journal of Genetic Engineering and Biotechnology. 2022. Vol. 20. No. 1. 95
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RIS Copy
TY - JOUR
DO - 10.1186/s43141-022-00374-9
UR - https://doi.org/10.1186/s43141-022-00374-9
TI - A sequential toggle cell-SELEX DNA aptamer for targeting Staphylococcus aureus, Streptococcus agalactiae, and Escherichia coli bacteria
T2 - Journal of Genetic Engineering and Biotechnology
AU - Kusumawati, Arizah
AU - Mustopa, Apon Zaenal
AU - Wibawan, I Wayan Teguh
AU - Setiyono, Agus
AU - Sudarwanto, Mirnawati Bachrum
PY - 2022
DA - 2022/07/01 00:00:00
PB - Springer Nature
IS - 1
VL - 20
SN - 1687-157X
SN - 2090-5920
ER -
BibTex
Cite this
BibTex Copy
@article{2022_Kusumawati,
author = {Arizah Kusumawati and Apon Zaenal Mustopa and I Wayan Teguh Wibawan and Agus Setiyono and Mirnawati Bachrum Sudarwanto},
title = {A sequential toggle cell-SELEX DNA aptamer for targeting Staphylococcus aureus, Streptococcus agalactiae, and Escherichia coli bacteria},
journal = {Journal of Genetic Engineering and Biotechnology},
year = {2022},
volume = {20},
publisher = {Springer Nature},
month = {jul},
url = {https://doi.org/10.1186/s43141-022-00374-9},
number = {1},
doi = {10.1186/s43141-022-00374-9}
}
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