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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)
Bilibili (China-Accessible Mirrors) ★ 82
Western blot hands-on: Protein extraction through detection
"Hands-on WB protocol with explicit troubleshooting of common pitfalls, directly covering loading and band artifacts."
Bilibili (China-Accessible Mirrors) ★ 75
Western Blot Complete Process First-Person View
"First-person complete WB workflow shows sample loading into wells, the exact step where overloading causes band warping."
Bio-Rad Laboratories ★ 70
Setting Up and Running Mini-PROTEAN® TGX™ Precast Gels
"Demonstrates proper setup and running of precast SDS-PAGE gels, giving equipment and loading context for the failure."
Source: abcam.com ↗
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