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Key Documents

B6429

Sigma-Aldrich

Casein Blocking Buffer 10x

for Northern and Southern blotting, solution

Synonym(s):

10x Blocking Buffer

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About This Item

UNSPSC Code:
12161700
NACRES:
NA.54

grade

for molecular biology

Quality Level

200

form

solution

technique(s)

Southern blotting: suitable

storage temp.

room temp

Related Categories

General description

Casein is a phosphoprotein found in milk. It is classified into four subtypes, including αS1-, αS2-, β-, and κ-caseins.
Sigma’s 10x Blocking Buffer is a casein-based blocking agent routinely used to reduce non-specific binding of detection reagents to the Northern and Southern Blot membranes.

Application

Casein Blocking Buffer 10x has been used in:

  • western blotting
  • enzyme linked immunosorbent assay (ELISA)
  • immunohistochemistry

Features and Benefits

  • Better blocking performance than dried milk or BSA
  • Easy-to-use concentrate
  • Compatible with neutral and positively-charged membranes
  • Compatible with chemiluminescent and colorimetric detection assays

Preparation Note

Dilute 10x Blocking Buffer with molecular biology grade water before use.

Pictograms

Exclamation markEnvironment
GHS07,GHS09

Signal Word

Warning

Hazard Statements

H315,H317,H319,H411

Hazard Classifications

Aquatic Chronic 2 - Eye Irrit. 2 - Skin Irrit. 2 - Skin Sens. 1

Storage Class Code

10 - Combustible liquids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Protocols

10x Blocking Buffer Protocol

Membrane-based blotting applications that employ enzyme conjugates to generate colorimetric or chemiluminescent signal require the use of an added blocking step to decrease the signal generated by non-specific binding.

Casein Blocking Buffer Protocol for Southern or Western Blotting

Protocol for using Casein Blocking Buffer in Southern and Western blotting applications, including colorimetric and chemiluminescent substrate detection options. Troubleshooting for optimizing signal and reducing background is also included.

Northern and Southern Blot Protocols & Introduction

An introduction to both Northern and Southern blotting, popular methods for the transfer of macromolecules to membranous support. This article also offers a Southern blot protocol and a northern blot protocol.

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