Please refer to the printed manual for detailed information.
Background
Transcobalamin II, also known as TCN2 and TC II, is a plasma protein that binds cobalamin (Cbl; vitamin B12) as it is absorbed in the terminal ileum and distributes to tissues. The circulating transcobalamin II-cobalamin complex binds to receptors on the plasma membrane of tissue cells and is then internalized by receptor-mediated endocytosis. Transcobalamin II is a non-glycolated secretory protein of molecular mass 43 kDa. Its plasma membrane receptor (TC II-R) is a heavily glycosylated protein with a monomeric molecular mass of 62 kDa. Human TCN2 gene is composed of nine exons and eight introns spanning approximately 20 kb with multiple potential transcription start sites. A number of genetic abnormalities are characterized either by a failure to express TCN2 or by synthesis of an abnormal protein. The TCN2 deficiency results in cellular cobalamin deficiency, an early onset of megaloblastic anaemia, and neurological abnormalities.
Reactivity
Mouse
Tag
C-His
Description
A DNA sequence encoding the mouse TCN2 (O88968) (Met 1-Trp 430) was expressed, with a C-terminal polyhistidine tag.
Formulation
Lyophilized from sterile PBS, pH 7.4
Host
HEK293 Cells
Accession Number
O88968
Endotoxin Level
< 1.0 EU per ?g of the protein as determined by the LAL method.
Mol Weight
47 kDa
Mw(kda)
47 kDa
Sequence Info
Met 1-Trp 430
Shipping
This product is provided as lyophilized powder which is shipped with ice packs.
Stotage Note
Lyophilized proteins are stable for up to 12 months when stored at -20 to -80°C. Reconstituted protein solution can be stored at 4-8°C for 2-7 days. Aliquots of reconstituted samples are stable at < -20°C for 3 months.