CG5
Chorionic gonadotropin human
lyophilized powder, vial of ~5,000 IU
Sinónimos:
Choriogonin, HCG
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Biological source:
human urine
Form:
lyophilized powder
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Permítanos ayudarlebiological source
human urine
sterility
sterile-filtered
form
lyophilized powder
mol wt
37.9 kDa
contains
mannitol
packaging
vial of ~5,000 IU
drug control
Home Office Schedule 4.2
impurities
HBsAg, HCV and HIV-1/HIV-2, tested negative
solubility
water: 10 mL/vial, clear to slightly hazy, colorless
UniProt accession no.
shipped in
ambient
storage temp.
−20°C
Quality Level
Gene Information
human ... CGA(1081)
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Analysis Note
The calculated value is based on the USP method for human Chorionic Gonadotrophin, to meet 5,000 IU per vial, with a tolerance of not less than 80.0% and not more than 125.0% of the potency stated.
Application
Chorionic gonadotropin human has been used:
- to induce oocyte maturation in cultured follicles
- along with pregnant mare serum gonadotropin (PMSG) to induce superovulation in mice
- as medium component for fetal testes culture to aid steroidogenic responsiveness
Biochem/physiol Actions
Elevated levels of hCG is observed in trophoblastic cancer. hCG levels are indicators of pregnancy and β subunit is majorly present in urine samples. hCG isoform detection is useful in the diagnosis and management of trophoblastic related diseases including carcinomas.
General description
Chorionic gonadotropin human (CGA or hCG) is a heterodimer and belongs to the cystine knot growth factor superfamily. It exists as six variants namely hCGn, hCGβ, hCGβn, hCGβcf and hCGα including hCG. CGA is mapped to human chromosome 6q14.3. hCG comprises of α and β chain.
Glycoprotein hormone consisting of a 92-amino acid α-chain which is identical to that of LH, FSH, and TSH; and a distinct 149-amino acid β-chain. Produced by chorionic tissue and responsible for maintaining the corpus luteum during early pregnancy. Also produced by trophoblast cell neoplasms, which are marked by elevated free hCG β-chains and hyperglycosylated hCG.
Preparation Note
When reconstituted with water to a concentration of 1,000 IU/mL, the vial will also contain 0.02 M sodium phosphate buffer (pH approx. 7.2) and 20 mg/mL of mannitol.
Clase de almacenamiento
11 - Combustible Solids
wgk
WGK 2
flash_point_f
Not applicable
flash_point_c
Not applicable
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