TBG Protein, Human, Recombinant (His)

TBG Protein, Human, Recombinant (His) is expressed in HEK293 mammalian cells with His tag. The predicted molecular weight is 45.5 kDa and the accession number is P05543.

Pack Size	Availability	Price/USD	Quantity
50 μg	5 days	$ 600.00

Pack Size

Availability

Price/USD

Quantity

50 μg

5 days

$ 600.00

Description

TBG Protein, Human, Recombinant (His) is expressed in HEK293 mammalian cells with His tag. The predicted molecular weight is 45.5 kDa and the accession number is P05543.

Species	Human
Expression System	HEK293 Cells
Tag	C-His
Accession Number	P05543
Synonyms	Serpin A7, serpin peptidase inhibitor, clade A (α-1 antiproteinase, antitrypsin), member 7, serpin peptidase inhibitor, clade A (alpha-1 antiproteinase, antitrypsin), member 7, TBG, Thyroxine Binding Globulin
Construction	The Human SERPINA7 (NP_000345.2) (Met 1-Ala 415) was expressed, fused with a polyhistidine tag at the C-terminus.
Protein Purity	> 97 % as determined by SDS-PAGE
Molecular Weight	45.5 kDa (predicted)

Endotoxin	< 1.0 EU/μg of the protein as determined by the LAL method.
Formulation	Lyophilized from a solution filtered through a 0.22 μm filter, containing PBS, pH 7.4. Typically, a mixture containing 5% to 8% trehalose, mannitol, and 0.01% Tween 80 is incorporated as a protective agent before lyophilization.
Reconstitution	A Certificate of Analysis (CoA) containing reconstitution instructions is included with the products. Please refer to the CoA for detailed information.
Stability & Storage	It is recommended to store recombinant proteins at -20°C to -80°C for future use. Lyophilized powders can be stably stored for over 12 months, while liquid products can be stored for 6-12 months at-80℃. For reconstituted proteinsolutions, the solution can be stored at -20°c to -80'c for at least 3 months. Please avoid multiple freeze-thaw cycles and store products in aliquots.
Shipping	In general, Lyophilized powders are shipping with blue ice.
Research Background	Thyroxine-binding globulin, also known as T4-binding globulin, Serpin A7 and TBG, is a secreted protein that belongs to the serpin family. TBG is synthesized primarily in the liver as a 54 kDa protein.TBG is genomically a serpin, although it has no inhibitory function like many other members of this class of proteins. TBG binds thyroid hormone in circulation. It is one of three proteins (along with transthyretin and albumin) responsible for carrying the thyroid hormones thyroxine (T4) and 3,5,3’-triiodothyronine (T3) in the bloodstream. Of these three proteins, TBG has the highest affinity for T4 and T3, but is present in the lowest concentration. Despite its low concentration, TBG carries the majority of T4 in serum. Due to the very low serum concentration of T4 and T3, TBG is rarely more than 25% saturated with its ligand. Unlike transthyretin and albumin, TBG has a single binding site for T4/T3. TBG tests are sometimes used in finding the reason for elevated or diminished levels of thyroid hormone.