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A3641

Sigma-Aldrich

Apoferritin from equine spleen

0.2 μm filtered

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About This Item

CAS Number:
MDL number:
UNSPSC Code:
12352202
NACRES:
NA.32

Quality Level

sterility

0.2 μm filtered

form

liquid

mol wt

major subunit ML 19,889
minor subunit MH 22,200
native ~481.2 kDa (24 subunits, approx. 20 kDa each)

color

clear to slightly hazy, solution

storage temp.

2-8°C

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Application

Apoferritin from equine spleen has been used:
  • to determine its partition coefficients in phase systems
  • in NaCl for iron loading of cultured cells
  • in in situ liquid scanning transmission electron microscope for imaging the interface of biology and nanotechnology

Biochem/physiol Actions

This protein shell of ferritin lacking iron is widely used for the calibration of gel filtration columns and sodium dodecyl sulfate (SDS)-polyacrylamide gel electrophoresis. It is very abundant in beta-cells of the pancreas where it acts as an anti-oxidant. When added to cultured endothelial cells apoferritin is taken up in a dose-responsive manner and appears to protect the cells from oxidant-mediated cytolysis.

Physical form

Solution in 0.135 M sodium chloride.

Storage Class Code

10 - Combustible liquids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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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Masahide Takehara et al.
Analytical biochemistry, 373(2), 322-329 (2007-12-07)
Two kinds of layer silicate powder, Micromica and chlorite, were used to aid protein crystallization by the addition to hanging drops. Using appropriate crystallization buffers, Micromica powder facilitated crystal growth speed for most proteins tested in this study. Furthermore, the
Jorge H Melillo et al.
Scientific reports, 12(1), 16512-16512 (2022-10-04)
Some of the best nucleating agents in nature are ice-nucleating proteins, which boost ice growth better than any other material. They can induce immersion freezing of supercooled water only a few degrees below 0 °C. An open question is whether this
G Balla et al.
The Journal of biological chemistry, 267(25), 18148-18153 (1992-09-05)
Phagocyte-mediated oxidant damage to vascular endothelium is likely involved in various vasculopathies including atherosclerosis and pulmonary leak syndromes such as adult respiratory distress syndrome. We have shown that heme, a hydrophobic iron chelate, is rapidly incorporated into endothelial cells where
Hamish G Brown et al.
Communications biology, 5(1), 817-817 (2022-08-15)
Ice thickness is arguably one of the most important factors limiting the resolution of protein structures determined by cryo-electron microscopy (cryo-EM). The amorphous atomic structure of the ice that stabilizes and protects biological samples in cryo-EM grids also imprints some
Visualizing macromolecular complexes with in situ liquid scanning transmission electron microscopy
Evans JE, et al.
Micron (Oxford, England : 1993), 43(11), 1085-1090 (2012)

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