Phosphorylation of threonine 190 is essential for nuclear localization and endocytosis of the FTS (Fused Toes Homolog) protein

Anandharaj, Arunkumar; Yu, Jeong Jin; Park, Woo-Yoon

doi:10.1016/j.ijbiomac.2011.07.005

Cited by 4 publications

(1 citation statement)

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“…PCR amplification (Veriti™ 96-well thermal cycler; Applied Biosystems, Foster City, CA, USA) was performed in a reaction volume of 20 μL, containing 10 μL of 2X Master Mix (Aura, Chennai, India), 0.2 μM of forward and reverse primers and the 100 ng/reaction of template DNA ( 29 , 30 ). The PCR conditions used for the amplification were as follows: initial denaturation at 95 ºC for 10 min, followed by 40 cycles consisting of denaturation at 95 ºC for 30 s, annealing at 60 ºC for 30 s, extension at 72 ºC for 30 s and final extension at 72 ºC for 5 min.…”

Section: Methodsmentioning

confidence: 99%

A Molecular Approach for the Detection and Quantification of Tribolium castaneum (Herbst) Infestation in Stored Wheat Flour

Negi

Anandharaj

Kalakandan

et al. 2021

Food Technol. Biotechnol. (Online)

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Research background. The presence of insect fragments is one of the major constrains in stored food commodities and cause considerable loss in the quality of the produce. The management of the pest is viewed as a huge challenge in food processing industry. Conventionally, the detection of T. castenaum in the food processing industry is carried out by acid hydrolysis and staining methods which are not precise and time consuming. Experimental approach. Considering the importance of a quick and effective method, a qPCR-based approach was developed and elucidated in this study. The mitochondrial cytochrome oxidase I (mtCOI) gene was identified as a target due to the abundance in the pest. Specific primers were designed against the target gene by primer premier software and amplified in a qPCR. Results and conclusions. This developed method is capable of detecting all the ontogenic stages of T. castaneum in stored wheat flour. Earlier experiments had demonstrated that about 20 µg of DNA can be obtained from 2.2 mg of insects, to quantify the infestation levels the Ct values obtained from known samples were subjected to regression analysis and expressed as adult equivalents. In the unknown samples tested, the infestation was calculated as 1.74 and 0.046 adult insects in 5 g of wheat flour. The maximum permissible limit of insect fragments in flour is 75 insect fragments or approximately 3 adults per 50 g of flour as per FDA. Hence, by adopting this new method, it is possible for the warehouse operators to arrive at a decision to proceed with efficient management practices were wheat flour is stored. Also, this method can be ratified by government agencies associated with international business to ascertain whether the wheat flour meets the standards set by the respective country before subjecting to foreign trade. Novelty and scientific contribution. This study is the first of its kind in the detection and quantification for T. castaneum in milled products. So far only conventional methods are employed to assess the presence of the pest and manual counting of fragments are practiced to quantify the infestation levels. The developed qPCR method is faster, reliable and can be employed in milling industries, Bakery industries, food processing plants and foreign trade units for critical detection and quantification T. castaneum pest infestation.

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Section: Methodsmentioning

confidence: 99%