Mammalian ferritins consist of 24 subunits made up of two types of poly-peptide chains, ferritin heavy chain and ferritin light chain, which each have unique functions. Ferritin heavy chains catalyze the first step in iron storage, the oxidation of FeII, whereas ferritin light chains promote the nucleation of ferrihydrite, enabling storage of FeIII. The most prominent role of mamma-lian ferritins is to provide iron-buffering capacity to cells. In addition to iron buffering, heavy chain ferritin is also involved in the regulation of thymidine biosynthesis via increased expression of cytoplasmic serine hydroxymethyltransferase, which is a limiting factor in thymidylate synthesis in MCF-7 cells. Light chain ferritin is involved in cataracts by at least two mechanisms: hereditary hyperferritinemia cataract syndrome, in which light chain ferritin is overexpressed; and oxidative stress, an important factor in the development of aging-related cataracts.
产品应用
应用
已检合格种属
预测种属
推荐稀释比例
WB
Human, Mouse, Rat
1:500-2000
IHC-P
Human, Mouse, Rat
1:100-500
IHC-F
Human, Mouse, Rat
1:100-500
IF
Human, Mouse, Rat
1:100-500
交叉反应
交叉反应: Human, Mouse, Rat
相关产品
暂无相关产品
靶标
基因名
FTH1
蛋白名
Ferritin heavy chain
亚基
Oligomer of 24 subunits. There are two types of subunits: L (light) chain and H (heavy) chain. The major chain can be light or heavy, depending on the species and tissue type. The functional molecule forms a roughly spherical shell with a diameter of 12 nm and contains a central cavity into which the insoluble mineral iron core is deposited.
亚细胞定位
Cytoplasmic.
组织特异性
In human liver the heavy chain is the major chain.
相似性
Belongs to the ferritin family. Contains 1 ferritin-like diiron domain.
功能
Stores iron in a soluble, non-toxic, readily available form. Important for iron homeostasis. Has ferroxidase activity. Iron is taken up in the ferrous form and deposited as ferric hydroxides after oxidation. Also plays a role in delivery of iron to cells. Mediates iron uptake in capsule cells of the developing kidney.