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S3401

Sigma-Aldrich

Sample Buffer, Laemmli 2× Concentrate

Synonyme(s) :

SDS Sample Buffer

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About This Item

Code UNSPSC :
41105323
Nomenclature NACRES :
NA.25

Conditionnement

vial of 6 mL

Niveau de qualité

100
200

Température de stockage

−20°C

Application

Sample Buffer, Laemmli 2× concentrate has been used as a sample buffer for denaturing and loading of protein samples in SDS-PAGE.

Actions biochimiques/physiologiques

Laemmli sample buffer is especially formulated for protein sample preparation to be used in the Laemmli SDS-PAGE system. A protein sample is mixed with the 2X sample buffer (1:1) and heated in boiling water for 2-5 min. The 2-mercaptoethanol reduces the intra and inter-molecular disulfide bonds. The SDS detergent denatures the proteins and subunits and gives each an overall negative charge so that each will separate based on size. The bromophenol blue serves as a dye front that runs ahead of the proteins and also serves to make it easier to see the sample during loading. The glycerol increases the density of the sample so that it will layer in the sample well.

Autres remarques

Solution contains 4% SDS, 20% glycerol, 10% 2-mercaptoethanol, 0.004% bromphenol blue and 0.125 M Tris HCl, pH approx. 6.8.

Quantité

Recommended usage: add 1 volume gel loading solution to 1 volume sample and mix well.

Produit(s) apparenté(s)

Réf. du produit
Description
Tarif

92210

Timestrip Plus™ 0 °C

Pictogrammes

CorrosionSkull and crossbonesHealth hazard
GHS05,GHS06,GHS08

Mention d'avertissement

Danger

Classification des risques

Acute Tox. 3 Dermal - Acute Tox. 4 Oral - Aquatic Chronic 3 - Eye Dam. 1 - Repr. 2 - Skin Irrit. 2 - Skin Sens. 1 - STOT RE 2 Oral

Code de la classe de stockage

6.1C - Combustible, acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

Classe de danger pour l'eau (WGK)

WGK 3

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable

Équipement de protection individuelle

Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter

Certificats d'analyse (COA)

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Protocoles

Immunoprecipitation Procedure

To determine the molecular weights of protein antigens, to study protein/protein interactions, to determine specific enzymatic activity, to monitor protein post-translational modifications and to determine the presence and quantity of proteins.

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