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2 protocols using pcdna3 rluc polires fluc

1

Characterizing eIF4E-eIF4G and 4EBP1 Interactions

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All eIF4E, eIF4G (including the Y624A, L629A and L630A binding mutant) and 4EBP1 mutant cDNAs were synthetized and obtained from IDT (Integrated DNA Technologies). eIF4E and eIF4G604–646 were cloned into NanoBit plasmids using the NanoBit PPI starter system (Promega) using XhoI/EcoRI and NheI/EcoRI cloning sites respectively. 4EBP1 mutants were cloned into pCDNA3.1 vector DNA (Thermo Fisher Scientific) harbouring a C-terminal 3× FLAG tag via NheI/BamHI sites to allow mammalian cell overexpression. For bacterial expression, 4EBP1 mutants were cloned into pGEX6P1 using BamHI/EagI cloning sites. GFP and v-Myc coding sequence residing in a pCMV6 mammalian expression vector were obtained from Origene. The bicistronic luciferase reporter construct pcDNA3-rLuc-polIRES-fLuc was purchased from Addgene. PP242, Torin1, Rapamycin, 4EGi-1 and 4E1RCat were purchased from Tocris Bioscience, whilst all other chemicals unless otherwise stated were purchased from Selleck Chemicals. siRNAs targeting either 4EBP1 (ON-TargetPlus Human EI4EBP1, J-003005-12-0005) or non-targeting control (ON-TargetPlus Non-targeting pool, D-001810-10-05) were purchased from DHARMACON.
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2

Isolation and Characterization of NLE from P. nagi

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NLE with a purity of approximately 99.99% was isolated from the seeds of P. nagi as documented in a previous study [6 (link)]. Cycloheximide; anti-rabbit IgG; anti-mouse IgG; and primary antibodies against NRF2, p21, STAT3, ATF4 and GAPDH were obtained from Cell Signaling Technology (Beverly, MA, USA). Primary antibody against β-actin was purchased from Santa Cruz Biotechnology (Dallas, CA, USA). RIPA lysis buffer was procured from Beyotime Biotechnology (Shanghai, China). Cisplatin was purchased from Selleck Chemicals (Houston, TX, USA). The reagents used for the Click-iT assay, Click-iT™ AHA (L-azidohomoalanine), biotin alkyne (PEG4 carboxamide-propargyl biotin), a Click-iT™ protein reaction buffer kit, and anti-streptavidin-HRP, were purchased from Life Technologies (Eugene, OR, USA). The bicistronic reporter plasmid pcDNA3-RLUC-POLIRES-FLUC constructed by Nahum Sonenberg was obtained from Addgene (plasmid # 45642) [15 (link)].
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