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Human GPHA2 / Glycoprotein hormone alpha 2 Protein (His Tag)

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Human GPHA2 Protein Product Information
Synonym:GPHA2, GPA2, ZSIG51
Protein Construction:A DNA sequence encoding the human GPHA2 (Q96T91) (Met1-Tyr129) was expressed with a polyhistidine tag at the C-terminus.
Expressed Host:Human Cells
Shipping:In general, recombinant proteins are provided as lyophilized powder which are shipped at ambient temperature.
Bulk packages of recombinant proteins are provided as frozen liquid. They are shipped out with blue ice unless customers require otherwise.
Human GPHA2 Protein QC Testing
Purity:> 90 % as determined by SDS-PAGE
Endotoxin:< 1.0 EU per μg of the protein as determined by the LAL method
Stability:Samples are stable for up to twelve months from date of receipt at -70℃
Predicted N Terminal:Gln 24
Molecule Mass:The recombinant human GPHA2 consists of 117 amino acids and predicts a molecular mass of 13.1 KDa. It migrates as an approximately 23 KDa band in SDS-PAGE under reducing conditions.
Formulation:Lyophilized from sterile PBS, pH 7.4.
1. Normally 5 % - 8 % trehalose and mannitol are added as protectants before lyophilization. Specific concentrations are included in the hardcopy of COA.
2. Please contact us for any concerns or special requirements.
Human GPHA2 Protein Usage Guide
Storage:Store it under sterile conditions at -20℃ to -80℃. It is recommended that the protein be aliquoted for optimal storage. Avoid repeated freeze-thaw cycles.
Reconstitution:A hardcopy of COA with reconstitution instruction is sent along with the products. Please refer to it for detailed information.
Human GPHA2 Protein SDS-PAGE
Human GPHA2 / Glycoprotein hormone alpha 2 Protein (His Tag) SDS-PAGE
Other GPHA2 Recombinant Protein Products
GPHA2 / glycoprotein hormone alpha 2 Background

GPHA2 is a member of the glycoprotein hormones subunit alpha family. Glycoprotein hormones consist of two subunits, the common alpha- and specific beta-subunits, which associate noncovalently to form a heterodimer. The alpha-subunit combines with four distinct beta-subunits giving rise to four biologically active hormones in human: FSH, LH, TSH, and CG. GPHA2 and glycoprotein hormone beta 5 (GPHB5) can form a noncovalent heterodimer. GPHA2 can be detected in a variety of tissues. Recombinant A2/B5 heterodimeric glycoproteins activates human TSH receptors, but not LH and FSH receptors, and shows high affinity to TSH receptors in a radioligand receptor assay. The heterodimer also stimulates cAMP production and thymidine incorporation by cultured thyroid cells and increases serum thyroxine levels in TSH-suppressed rats in vivo. This new heterodimeric glycoprotein hormone was named as thyrostimulin based on its thyroid-stimulating activity. The expression of thyrostimulin in the anterior pituitary known to express TSH receptors suggested a paracrine mechanism.

Human GPHA2 / glycoprotein hormone alpha 2 References
  • Hsu SY. et al., 2002, Science. 295 (5555): 671-4.
  • Suzuki C. et al., 2007, Regul Pept. 142 (1-2): 60-7.
  • Breous E. et al., 2006, Mol Cell Endocrinol. 245 (1-2): 169-80.
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    Size / Price
    Catalog: 13894-H08H-100
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    All information of our products is subject to change without notice. Please refer to COA enclosed in shipped package for the newest information.