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Western Blot (Misshapen / Uneven Bands) moderate

Band Warping from Well Overloading

Symptom
Individual lanes show warped or distorted bands while adjacent lanes appear normal. Affected lanes may show smearing, broadening, or lateral spreading of protein bands.
Common Causes
  1. 1 Excessive protein amount loaded exceeding well capacity
  2. 2 Uneven protein loading across different wells
  3. 3 Sample volume exceeding well volume capacity
  4. 4 High protein concentration causing local gel matrix saturation
Solutions
  1. 1 Do not exceed recommended well loading capacity (typically 20-30 µg total protein for mini-gels)
  2. 2 Refer to gel manufacturer and comb size specifications for maximum sample volumes
  3. 3 Perform protein quantification (BCA or Bradford assay) to ensure equal loading
  4. 4 Dilute high-concentration samples to appropriate levels before loading
Related Video (3)
Bio-Rad Laboratories ★ 85
Setting Up and Running Mini-PROTEAN® TGX™ Precast Gels
"Directly demonstrates gel setup and sample loading procedures for SDS-PAGE, critical for understanding well capacity and proper loading technique to avoid overloading."
Cell Signaling Technology ★ 82
Western Blotting Protocol
"Comprehensive Western blot protocol video emphasizing reproducible and reliable results, providing context for proper sample preparation and loading that prevents band distortion."
Bilibili (China-Accessible Mirrors) ★ 78
Western blot full protocol: Protein extraction to chemiluminescence
"Complete hands-on workflow from protein extraction through detection with emphasis on troubleshooting, enabling researcher to understand loading decisions and recognize overloading symptoms."
Source: abcam.com ↗
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