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Lipid Transfection minor

Orange Background Fluorescence with GFP

Symptom
Light granular orange background fluorescence observed after GFP transfection with Lipofectamine 2000
Common Causes
  1. 1 Orange fluorescence associated with lipid/DNA complexes
  2. 2 Common artifact from cationic lipid transfection
  3. 3 Varies depending on cationic lipid reagent used
Solutions
  1. 1 Recognize this as normal artifact not related to GFP expression
  2. 2 Background does not interfere with transfection results
  3. 3 No action needed - proceed with analysis as planned
Related Video (3)
YouTube (Curated Tutorials) ★ 78
Plasmid DNA Transfection Protocol
"Demonstrates Lipofectamine 2000/LTX protocol for plasmid DNA transfection, directly addressing the reagent and technique causing the orange background fluorescence artifact"
Bilibili (China-Accessible Mirrors) ★ 72
Cell Transfection Operation: Common Mistakes Avoided
"Includes troubleshooting tips and common pitfalls in transfection operations, relevant for diagnosing and correcting lipid complex-related fluorescence background issues"
Bilibili (China-Accessible Mirrors) ★ 70
Plasmid Transfection in 293T Cells: Principles and Hands-on Protocol
"Combines plasmid transfection principles with hands-on protocol in mammalian cells, providing context for understanding lipid-DNA complex formation and associated artifacts"
Source: thermofisher.com ↗
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