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Subodh, Ravina, Priyanka, Narang J, Mohan H. Biosensors for phytohormone Abscisic acid and its role in humans: A review. SENSORS INTERNATIONAL 2023. [DOI: 10.1016/j.sintl.2023.100234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/24/2023] Open
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Su Y, Li W, Huang Z, Wang R, Luo W, Liu Q, Tong J, Xiao L. Sensitive and high throughput quantification of abscisic acid based on quantitative real time immuno-PCR. PLANT METHODS 2018; 14:104. [PMID: 30534191 PMCID: PMC6260876 DOI: 10.1186/s13007-018-0371-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/24/2018] [Accepted: 11/19/2018] [Indexed: 06/09/2023]
Abstract
BACKGROUND Abscisic acid (ABA) functions as a stress phytohormone in many growth and developmental processes in plants. The ultra-sensitive determination of ABA would help to better understand its vital roles and action mechanisms. RESULTS We report a new sensitive and high throughput quantitative real time immuno-PCR (qIPCR) method based on biotin-avidin linkage system for ABA determination in plants. ABA monoclonal antibody (McAb) coated on the inner surface of PCR well pretreated with glutaraldehyde. The pre-prepared probe complex, including biotinylated McAb, biotinylated DNA and streptavidin linker, was convenient for high throughput operations. Finally, probe DNA was quantified by real-time PCR. The detectable ranges were from 10 to 40 ng/L with a limit of detection (LOD) of 2.5 fg. ABA contents in plant sample were simultaneously analyzed using LC-MS/MS to validate the qIPCR method. The results showed that qIPCR method has good specificity and repeatability with a recovery rate of 96.9%. CONCLUSION The qIPCR method is highly sensitive for ABA quantification for actual plant samples with an advantage of using crude extracts instead of intensively purified samples.
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Affiliation(s)
- Yi Su
- Hunan Provincial Key Laboratory of Phytohormones and Growth Development, Hunan Agricultural University, Changsha, China
- Southern Regional Collaborative Innovation Center for Grain and Oil Crops in China, Hunan Agricultural University, Changsha, China
| | - Wei Li
- Hunan Provincial Key Laboratory of Phytohormones and Growth Development, Hunan Agricultural University, Changsha, China
- Tea Research Institute, Hunan Academy of Agriculture Science, Changsha, 410125 China
| | - Zhigang Huang
- Hunan Provincial Key Laboratory of Phytohormones and Growth Development, Hunan Agricultural University, Changsha, China
- Southern Regional Collaborative Innovation Center for Grain and Oil Crops in China, Hunan Agricultural University, Changsha, China
| | - Ruozhong Wang
- Hunan Provincial Key Laboratory of Phytohormones and Growth Development, Hunan Agricultural University, Changsha, China
- Southern Regional Collaborative Innovation Center for Grain and Oil Crops in China, Hunan Agricultural University, Changsha, China
| | - Weigui Luo
- Hunan Provincial Key Laboratory of Phytohormones and Growth Development, Hunan Agricultural University, Changsha, China
| | - Qing Liu
- Hunan Provincial Key Laboratory of Phytohormones and Growth Development, Hunan Agricultural University, Changsha, China
- Southern Regional Collaborative Innovation Center for Grain and Oil Crops in China, Hunan Agricultural University, Changsha, China
| | - Jianhua Tong
- Hunan Provincial Key Laboratory of Phytohormones and Growth Development, Hunan Agricultural University, Changsha, China
| | - Langtao Xiao
- Hunan Provincial Key Laboratory of Phytohormones and Growth Development, Hunan Agricultural University, Changsha, China
- Southern Regional Collaborative Innovation Center for Grain and Oil Crops in China, Hunan Agricultural University, Changsha, China
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Abstract
Polymerase chain reaction-amplified immunoassay (immuno-PCR, iPCR) is a method that combines the specificity of an immunological detection method and the sensitivity of a nucleic acid amplification method. In this way, immuno-PCR uses a minimum amount of sample, and allows the detection of rare diseases and those diseases in very early stage (i.e. infectious diseases, degenerative disorders, or neoplastic diseases). The present review was aimed to describe this new methodology and applications to the early detection of cancer and non-cancer related diseases, and discuss about the possibility to detect diverse biomarkers of oncology disorders, such as breast, gastric, colorectal and nasopharynx cancer, and other factors related to the growth of the neoplastic disease.
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Affiliation(s)
- Anna Luiza F V Assumpção
- a Department of Pathobiological Science, School of Veterinary Medicine , University of Wisconsin-Madison , Madison , WI , USA
| | - Rodrigo C da Silva
- b Department of Pathobiology and Population Medicine, College of Veterinary Medicine , Mississippi State University , Mississippi State , MS , USA
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García-Salcedo R, Lubitz T, Beltran G, Elbing K, Tian Y, Frey S, Wolkenhauer O, Krantz M, Klipp E, Hohmann S. Glucose de-repression by yeast AMP-activated protein kinase SNF1 is controlled via at least two independent steps. FEBS J 2014; 281:1901-17. [PMID: 24529170 DOI: 10.1111/febs.12753] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2013] [Revised: 02/03/2014] [Accepted: 02/10/2014] [Indexed: 12/14/2022]
Abstract
The AMP-activated protein kinase, AMPK, controls energy homeostasis in eukaryotic cells but little is known about the mechanisms governing the dynamics of its activation/deactivation. The yeast AMPK, SNF1, is activated in response to glucose depletion and mediates glucose de-repression by inactivating the transcriptional repressor Mig1. Here we show that overexpression of the Snf1-activating kinase Sak1 results, in the presence of glucose, in constitutive Snf1 activation without alleviating glucose repression. Co-overexpression of the regulatory subunit Reg1 of the Glc-Reg1 phosphatase complex partly restores glucose regulation of Snf1. We generated a set of 24 kinetic mathematical models based on dynamic data of Snf1 pathway activation and deactivation. The models that reproduced our experimental observations best featured (a) glucose regulation of both Snf1 phosphorylation and dephosphorylation, (b) determination of the Mig1 phosphorylation status in the absence of glucose by Snf1 activity only and (c) a regulatory step directing active Snf1 to Mig1 under glucose limitation. Hence it appears that glucose de-repression via Snf1-Mig1 is regulated by glucose via at least two independent steps: the control of activation of the Snf1 kinase and directing active Snf1 to inactivating its target Mig1.
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Affiliation(s)
- Raúl García-Salcedo
- Department of Chemistry and Molecular Biology, University of Gothenburg, Sweden
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Askin SP, Schaeffer PM. A universal immuno-PCR platform for comparative and ultrasensitive quantification of dual affinity-tagged proteins in complex matrices. Analyst 2012; 137:5193-6. [DOI: 10.1039/c2an35857c] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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Lind K, Norbeck J. A QPCR-based reporter system to study post-transcriptional regulation via the 3' untranslated region of mRNA in Saccharomyces cerevisiae. Yeast 2009; 26:407-13. [PMID: 19507146 DOI: 10.1002/yea.1675] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
Post-transcriptional regulation via the 3' untranslated region (3' UTR) of mRNA is an important factor in governing eukaryotic gene expression. Achieving detailed understanding of these processes requires highly quantitative systems in which comparative studies can be performed. To this end, we have developed a plasmid reporter system for Saccharomyces cerevisiae, in which the 3' UTR can be easily replaced and modified. Accurate quantification of the tandem affinity purification tag (TAP)-reporter protein and of TAP-mRNA is achieved by immuno-QPCR and by RT-QPCR, respectively. We have used our reporter system to evaluate the consequences on gene expression from varying the 3' UTR, a problem often encountered during C-terminal tagging of proteins. It was clear that the choice of 3' UTR was a strong determinant of the reporter expression, in a manner dependent on the growth conditions used. Mutations affecting either decapping (lsm1Delta) or deadenylation (pop2Delta) were also found to affect reporter gene expression in a highly 3' UTR-dependent manner. Our results using this set-up clearly indicate that the common strategy used for C-terminal tagging, with concomitant replacement of the native 3' UTR, will very likely provide incorrect conclusions on gene expression.
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Affiliation(s)
- Kristina Lind
- TATAA Biocentre AB, Odinsgatan 28, Gothenburg, Sweden
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Carbon source dependent dynamics of the Ccr4-Not complex in Saccharomyces cerevisiae. J Microbiol 2008; 46:692-6. [DOI: 10.1007/s12275-008-0122-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2008] [Accepted: 09/18/2008] [Indexed: 10/21/2022]
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