Ferritin, Human Liver, Western Blot Positive Controll (Lyophilized)

Article Name:	Ferritin, Human Liver, Western Blot Positive Controll (Lyophilized)
Biozol Catalog Number:	USB-F4015-17M
Supplier Catalog Number:	F4015-17M
Alternative Catalog Number:	USB-F4015-17M-100
Manufacturer:	US Biological
Category:	Molekularbiologie
Application:	WB

Elemental iron is required for a variety of normal cellular functions and vital for proper growth and development. Iron absorption occurs primarily in the intestine (duodenum) and inversely related to body iron reserve. Several proteins including Ferritin, transferrin (Tf), transferrin receptors (TfRs), and iron regulatory proteins (IRPs) etc play a key role in iron metabolism. Ferritin is the major protein involved in iron sequestration and detoxification. Ferritin is found in all living species and its three dimensional structure is conserved in all species despite very low sequence identity from bacteria to human. Mammalian liver and spleen ferritin (~450kD) consists of 24 subunits of 2 species, the heavy subunit (~21kD, FTH) and the light subunit (~ 19kD, FTL). The 2 types of apoferritin subunits were designated H and L for heart and liver, respectively. Ferritin molecules from plants and bacteria contain only H-type chains, where H-type is associated with the presence of centers catalyzing the oxidation of two Fe(II) atoms. FTL subunit (rich in human liver and spleen) is coded by a gene in segment 19q13.3 and FTH subunit (rich in human heart) is located on chromosome 11. Ferritin is capable of storing up to 4,500 atoms of ferric iron. The H-to-L ratio within ferritin varies in a tissue-specific manner and is also influenced by pathophysiological conditions, including inflammation and malignancy. H-chains are important for Fe(II) oxidation and Lchains assist in core formation. Source: Purified human liver ferritin. Applications: Suitable for use in Western Blot. Not suitable for ELISA or other applications where native protein is required. Other applications not tested. Recommended Dilution: Western Blot: 10ul/lane. Heat at 95C for 2-3 min prior to loading on gels. SDS may crystallize in cold conditions. It should redissolve by warming before taking it from the stock. It should be heated once prior to loading on gels. If the product has been stored for several weeks, then it may be preferable to add 5ul of fresh 2x sample buffer per 10ul of the F4015-17M solution prior to heating and loading on gels. Optimal dilutions to be determined by the researcher. Storage and Stability: May be stored at 4C for short-term only. Aliquot to avoid repeated freezing and thawing. Store at -20C. Aliquots are stable for at least 12 months. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. Further dilutions can be made in assay buffer.

Purity:	Highly Purified (~95%)
Form:	Supplied as a lyophilized powder from PBS, 0.05% sodium azide.