Skip to content
ISO 13485 & 9001 certified
Protein Electrophoresis · Cat. no. BR4C351

5× SDS-PAGE Protein Loading Buffer

5× SDS-PAGE Protein Loading Buffer is a 5× concentrated protein sample loading buffer.

Odor-free
No β-ME or DTT smell
Fast thawing
Low viscosity from −20 °C
Rapid sedimentation
Samples settle in wells
5× SDS-PAGE Protein Loading Buffer

Product overview

5× SDS-PAGE Protein Loading Buffer is a 5× concentrated protein sample loading buffer. SDS binds to proteins and confers a strong negative charge on protein-SDS complexes, thereby masking the intrinsic charge differences among proteins. At the same time, SDS disrupts intra- and intermolecular hydrogen bonds and denatures the secondary and tertiary structures of proteins. The reducing agent in the loading buffer also cleaves disulfide bonds between cysteine residues and disrupts protein conformation. As a result, structural differences among proteins are minimized, and migration of protein bands during electrophoresis depends mainly on molecular weight.

Features and applications

Features
  • This product is a denaturing and reducing protein loading buffer formulated with an updated composition that helps maintain a neutral pH after sample boiling, thereby reducing the risk of protein degradation.
  • The new-generation reducing agent provides strong reducing performance while avoiding the odor associated with β-mercaptoethanol or DTT.
  • During sample loading, the sample settles quickly and is less likely to float out of the wells.
  • After storage at -20°C, the product thaws rapidly to reduce waiting time.
Applications
  • Protein loading buffer for denaturing and reducing SDS-PAGE (not suitable for electrophoresis under native conditions).

Components

Components BR4C351-01 BR4C351-02 BR4C351-03
5× SDS-PAGE Protein Loading Buffer 5 mL 15 mL 75 mL

Shipping and storage

Condition Recommendation
Storage Store at -20±5°C.
Shipping Shipped with ice packs.
Handling For research use only. Review the MSDS before use.

Need this product lyophilized, in bulk, or in a custom format?

The feasibility assessment is free of charge. Send the assay brief and target format.

Talk to an expert

Not ready for a quote? Discuss feasibility, formats, host systems or validation with the specialist behind this page — no sales script.

Topic detected: your enquiry

Reply within one business day from an application scientist. For pricing, COA or samples, use Request a quote instead.

Application scientistAssay integration & formats

Tell us what you want to discuss

Four fields. We route it to the right person and reply the way you prefer.

🔒 Used only to reply to this request. No newsletters. Privacy Policy

Need pricing, a COA or samples? Request a quote →

Quick Contact

* Your data is securely protected for essential communications only. We won’t share your details or send spam emails, Privacy Policy *