TEM analysis of ligands bound to monomeric actin, actin filaments, bundles or networks.
Determination of actin filament length, thickness and structural properties.
Description
Product name
Actin-Toolkit Electron Microscopy
Protein
Actin (α-actin)
Origin
Rabbit skeletal muscle
Molecular mass
42 kDa
Toolkit description
The Actin-Toolkit Electron Microscopy is designed for transmission electron microscopy of negatively stained actin specimens. It supports structural analysis of ligand interactions with monomeric actin and with filamentous actin structures such as individual filaments, bundles and networks.
The toolkit contains native rabbit skeletal muscle α-actin together with buffers for maintaining G-actin or F-actin conditions during specimen preparation. SpreadingSolution and 0.2 µm centrifuge minifilters are included for preparation of EM specimens.
A dedicated handbook describes the experimental setup and specimen-preparation workflow for electron microscopic analysis of actin.
Purity
>99% by scanning densitometry.
Properties
Form
Actin and buffer components are supplied lyophilized where indicated; liquid components are supplied as listed below.
Kit content
4 × 0.25 mg G-Actin (lyophilized powder);
4 × 50 ml MonoMix (lyophilized G-actin ATP buffer);
2 × 1.0 ml PolyMix, 10× stock (lyophilized F-actin ATP buffer, pH 7.4);
1 × 0.5 ml SpreadingSolution;
1 × 0.5 ml 1 M MgCl2;
4 × centrifuge minifilters (0.2 µm);
1 × Toolkit Handbook Electron Microscopy.
Actin buffer after reconstitution
2 mM Tris-Cl, pH 8.2, 0.4 mM ATP, 0.5 mM DTT, 0.1 mM CaCl2 and 0.3% disaccharides. Reconstitute 0.25 mg actin with 250 µl ultrapure water to obtain 1 mg/ml.
Purification notes
Purified from rabbit skeletal muscle; GPC.
Protein concentration
Actin concentration determined by direct UV absorbance at 290 nm; A290 nm, 1% = 0.62.
Storage instructions
Store at −70 °C upon arrival. Kit components are stable for 6 months under these conditions. Solubilized G-actin should be kept on ice and used within 1 week. Avoid refreezing.
Shipping conditions
Shipped at ambient temperature. Upon delivery store at −70 °C.
Remarks
For research use only. Not for human or veterinary diagnostic or therapeutic applications.