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🧬 Epigenetics · Method

Non-coding RNA (ncRNA)

Analyze miRNA/lncRNA and other ncRNA
🎯 Difficulty ★★☆ Medium Duration About 1–2 days 🎯 Use Detect microRNA, lncRNA expression and their regulatory targets
📖 Principle
Extract total RNA, reverse-transcribe with stem-loop or poly(A) strategies, quantify by qPCR
Below are 4 steps. Open each to see how to do it and add products to your shared list.

📋 Workflow

Full workflow, products add-to-cart directly
1

RNA extraction and QC

2 h
Extract total RNA including small RNAs, check concentration, integrity and purity
💡 Tip Small RNAs need dedicated extraction to retain
⚠️ Caution RNase contamination degrades small RNAs
🧪 Materials for this step (click to shop by spec/brand)
2

Reverse transcription

2 h
Reverse-transcribe miRNA with stem-loop primers, or lncRNA by poly(A)/oligo-dT
💡 Tip Choose tailing/stem-loop strategy per target
⚠️ Caution Short small RNAs need specialized primers
🧪 Materials for this step (click to shop by spec/brand)
3

qPCR quantification

2–3 h
Quantify by qPCR with specific primers/probes, normalize to reference RNAs
💡 Tip Use suitable reference (e.g. U6)
⚠️ Caution Choose reference per RNA type
🧪 Materials for this step (click to shop by spec/brand)
4

Analysis and target validation

2 h
Calculate relative expression by 2^-ΔΔCt, validate ncRNA regulatory targets
💡 Tip Multiple references improve reliability
⚠️ Caution Target regulation needs functional validation
🧪 Materials for this step (click to shop by spec/brand)

⚠️ 5 Common Beginner Mistakes

  • Small RNAs lost in routine extraction
  • RNase contamination causes degradation
  • Wrong reference biases results
  • Non-specific primers amplify wrongly
  • Degradation/plateau distorts quantification

❓ FAQ

+miRNA vs gene quantification difference?
miRNAs are short; need stem-loop or tailing RT and length-specific probes.
+How to choose reference?
U6/RNU6B for miRNA, GAPDH/ACTB for lncRNA, verify stability.
+How to validate ncRNA targets?
Combine prediction databases with reporter, mutagenesis and overexpression/knockdown experiments.

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Data authenticity: Product categories from JW Supply Chain standard taxonomy; method→step→product connected. Last updated: 2026-08-23 · v3.0