کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
11027410 | 1666295 | 2018 | 17 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Trypsin enhances aptamer screening: A novel method for targeting proteins
ترجمه فارسی عنوان
تریپسین غربالگری غربالگری آپتامر: یک روش جدید برای هدف گیری پروتئین ها
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کلمات کلیدی
تریپسین، روش، پروتئین، آپتامر،
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
چکیده انگلیسی
A novel screening method for protein aptamer selection was developed in this study. Aptamers with high affinity and specificity to the surface recombinant antigen of Helicobacter pylori (HP-Ag) and to tumor markers carcinoembryonic antigen (CEA), cancer antigen 125 (CA125) and cancer antigen 19-9(CA19-9) were screened using trypsin enhanced screening method. Briefly, the target proteins above were immobilized onto 96-well polystyrene plates and incubated with a single-stranded DNA (ssDNA) library for aptamer selection. Then, trypsin was introduced to digest the proteins and obtain ssDNA that bound to the target proteins with high specificity. The concentration of ssDNA that shed from protein-ssDNA complexes was detected. After sequencing, the enrichment of target-specific aptamers was monitored and the affinity of each aptamer was analyzed. Urea, which has been reported in other article, was used to compare with trypsin. The results revealed that trypsin was more effective than urea for protein aptamer selection. The protocol used in this study provided a novel method for generating aptamers.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Analytical Biochemistry - Volumes 561â562, 15 November 2018, Pages 89-95
Journal: Analytical Biochemistry - Volumes 561â562, 15 November 2018, Pages 89-95
نویسندگان
Lide Gu, Wanli Yan, Shu Liu, Wei Ren, Mingsheng Lyu, Shujun Wang,