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4 protocols using mab 081 010

1

RNA Quantification and Detection of m5C and m6A

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By using a NanoDrop, the concentration of the purified RNA was measured and diluted to 100 ng/μl and 50 ng/μl with RNase-free water. We denatured purified RNA by heating it to 95 °C for 3 min and cooling it on ice. Nucleic acid transfer was optimized using the Hybond-N + membrane (Solarbio). Incubation with mouse anti-m5C antibody (1:1000; MAb-081-010, Diagenode) or rabbit anti-m6A antibody (1:1000, 202003, Synaptic Systems) was performed overnight at 4 °C after UV crosslinking. All membranes were incubated with HRP-labelled mouse IgG secondary antibodies (ZB-2305, Zsbio Store-bio) or rabbit IgG secondary antibodies (ZB-2316, Zsbio Store-bio) for 1 h before visualization by an imaging system (Bio-Rad, USA). An ECL Western blotting Detection Kit (Sevenbio, Beijing, China) was used to visualize the membrane. The other membrane was loaded with methylene blue.
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2

MeDIP Protocol with Antibodies

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MeDIP was performed according to the protocol of Mohn et al. [40 (link)] with antibodies: IgG (46540; Santa Cruz Biotechnologie), 5mC (MAb-081-010; Diagenode) and 5hmC (MAb-31HMC-020; Diagenode). The following primers were used for semi quantitative PCR amplification: DUSP2CIPU2: GGGTGGGCGCAAAAACGGAGGG, DUSP2CIPL2: CCGGGGCACCATACAAGGGCAGA, bACTRTFW: CCTTCCTTCCTGGGCATGGAGTC, bACTRTFW: CGGAGTACTTGCGCTCAGGAGGA.
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3

Dot Blot Analysis of m5C RNA

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Dot blot analysis was performed as previously described[5] with slight modifications. The purified RNA was heated at 95 °C for 3 min, followed by chilling on ice immediately. RNA was spotted on a Hybond‐N+ membrane (Amersham), followed UV crosslinking. The membrane was washed by 1x PBST buffer (PBS with Tween‐20), blocked with 5% of non‐fat milk in PBST, and incubated with anti‐m5C antibody (1:1000; MAb‐081‐010, Diagenode) overnight at 4 °C. After the membrane was washed by 1x PBST, incubating with horseradiash‐peroxidase‐conjugated anti‐mouse IgG secondary antibody (Santa Cruz). The ECL Western Blotting Detection Kit (Thermo) was used to visualize the membrane.
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4

Quantifying RNA Methylation Levels

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Total RNA was extracted using the RNeasy Plus Mini kit (QIAGEN). mRNA was enriched from total RNA using the Oligotex mRNA Mini Kit (QIAGEN), and small RNA was separated from rRNA in the remaining fraction using the miRNeasy Mini Kit (QIAGEN). RNA concentration and quality were measured by the Qubit RNA Assay Kit using a Qubit 2.0 Fluorometer (Life Technologies) and the RNA Nano 6000 Assay Kit using a Bioanalyzer 2100 system (Agilent). Dot Blot Analysis of m 5 C Levels Dot blot analysis was performed as described previously (Shen et al., 2016 (Shen et al., , 2017)) . Purified RNA was first denatured by heating at 95 C for 3 min, followed by chilling on ice immediately. RNA was spotted on a Hybond-N+ membrane (Amersham) optimized for nucleic acid transfer. After UV crosslinking, the membrane was washed by 13 PBST buffer (PBS with Tween-20), blocked with 5% of non-fat milk in PBST, and incubated with anti-m 5 C antibody (1:1000; MAb-081-010, Diagenode) overnight at 4 C. After incubating with horseradish-peroxidaseconjugated anti-mouse IgG secondary antibody (Santa Cruz), the membrane was visualized by the ECL Western Blotting Detection Kit (Thermo).
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