Cortisol Binding Globulin Protein, Human, Recombinant (His & Avi), Biotinylated

Cortisol Binding Globulin Protein, Human, Recombinant (His & Avi), Biotinylated is expressed in HEK293 mammalian cells with His and Avi tag. The predicted molecular weight is 45.9 kDa and the accession number is A0A2Z4LCH4.

Cortisol Binding Globulin Protein, Human, Recombinant (His & Avi), Biotinylated

パッケージサイズ	在庫状況	単価(税別)
20 μg	約5 days	￥ 106,000
100 μg	約5 days	￥ 245,500

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説明	Cortisol Binding Globulin Protein, Human, Recombinant (His & Avi), Biotinylated is expressed in HEK293 mammalian cells with His and Avi tag. The predicted molecular weight is 45.9 kDa and the accession number is A0A2Z4LCH4.

Species	Human
Expression Host	HEK293 Cells
Tag	His, Avi
Accession Number	A0A2Z4LCH4
別名	serpin peptidase inhibitor, clade A (α-1 antiproteinase, antitrypsin), member 6, CBG, serpin peptidase inhibitor, clade A (alpha-1 antiproteinase, antitrypsin), member 6, SerpinA6
Construction	The Human SERPINA6 (NP_001747.2) (Met1-Val405) was expressed with a c-terminal polyhistidine tagged AVI tag at the C-terminus. The expressed protein was biotinylated in vivo by the Biotin-Protein ligase (BirA enzyme) which is co-expressed.
Protein Purity	> 95 % as determined by SDS-PAGE.
分子量	45.9 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	Corticosteroid-binding globulin (CBG), also known as SerpinA6, is a non-inhibitory member of the serine proteinase inhibitor (serpin) superfamily. It is the high-affinity transport protein for glucocorticoids in vertebrate blood. CBG is specifically cleaved by this protease at a precise site close to its carboxy-terminus. This induces a conformation change and disrupts the binding between glucocorticoids and CBG, and promotes a significant and local release of glucocorticoids (over 90% of them are bound to CBG in human plasma). In this context, CBG directs glucocorticoids to sites of inflammation, and plays in consequence a crucial role in efficient glucocorticoid action in physiology. The SerpinA6 protein is mainly secreted by the liver. This negative acute phase protein regulates free cortisol levels in the blood and distributes cortisol to its target tissues. SerpinA6 deficiency is an extremely rare hereditary disorder characterized by reduced corticosteroid-binding capacity with normal or low plasma corticosteroid-binding globulin concentration, and normal or low basal cortisol levels associated with hypo-/hypertension and muscle fatigue. There are three heritable, human CBG gene mutations that can reduce CBG-cortisol binding affinity and/or reduce circulating CBG levels.

参考文献

1. Seralini GE. (1991) A new role for corticosteroid binding globulin (CBG), member of SERPIN superfamily. C R Seances Soc Biol Fil. 185(6): 500-9. 2. Buss C,et al.(2007) Haploinsufficiency of the SERPINA6 gene is associated with severe muscle fatigue: A de novo mutation in corticosteroid-binding globulin deficiency. J Neural Transm. 114(5): 563-9. 3. Torpy DJ,et al.(2007) Corticosteroid-binding globulin gene polymorphisms: clinical implications and links to idiopathic chronic fatigue disorders. Clin Endocrinol (Oxf). 67(2): 161-7. 4. Braun BC,et al.(2010) Effect of mutations of the human serpin protein corticosteroid-binding globulin on cortisol-binding, thermal and protease sensitivity. J Steroid Biochem Mol Biol. 120(1): 30-7. 5. Lin HY,et al.(2010) Molecular and structural basis of steroid hormone binding and release from corticosteroid-binding globulin. Mol Cell Endocrinol. 316(1): 3-12.

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Cortisol Binding Globulin Protein, Human, Recombinant (His & Avi), Biotinylated

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