HCG (5000)

  • Glycoprotein Hormone (hCG): 237-amino acid heterodimer (α-subunit 92 aa + β-subunit 145 aa), ≥95% purity by SDS-PAGE, 5,000 IU per vial
  • LHCGR Biased Agonism: cAMP/PKA steroidogenic signaling, EC₅₀ 107 pM — 5-fold more potent than LH for cAMP production
  • Reproductive Endocrinology Research: GPCR signaling, steroidogenesis, and endometrial biology investigation
Manufacturer: RiboCore
Availability: 100 in stock
SKU: RP-HCG
$54.00
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Technical Specifications

CharacteristicValue
CAS Number9002-61-3
Molecular Weight~36,700 Da (intact heterodimer with glycans)
Subunit Compositionα-subunit 92 aa + β-subunit 145 aa
Purity≥95% (SDS-PAGE)
FormLyophilized powder, white to off-white, 5,000 IU per vial

Human chorionic gonadotropin (hCG) is a heterodimeric glycoprotein hormone comprising 237 amino acids, supplied as a lyophilized powder for in vitro research and intended strictly for qualified researchers. Originally characterized as the primary luteotropic signal of early pregnancy, hCG is recognized as a pleiotropic molecule investigated across reproductive endocrinology, GPCR pharmacology, steroidogenesis, immunomodulation, angiogenesis, and endometrial biology. With thousands of indexed peer-reviewed publications, hCG ranks among the most thoroughly characterized hormones in biomedical research.

Key Research Highlights

Research AreaKey Finding
LHCGR ActivationCryo-EM structures of full-length LHCGR-hCG-Gs complex reveal "push-and-pull" activation mechanism with conserved tethered agonist peptide P10 (Duan et al., 2021, Nature)
Biased AgonismhCG 5-fold more potent than LH for cAMP (EC₅₀ 107 pM vs. 530 pM); hCG biased toward sustained cAMP/PKA steroidogenic signaling vs. LH ERK1/2 preference (Casarini et al., 2012)
Endometrial BiologyhCG-activated LHCGR increases HOXA10, ITGB3, FOXO1, and LIF expression; modulates autophagy via ERK1/2 and mTOR; epigenetic H3K27Ac changes at decidualization-associated genes (Wang et al., 2024; Žukauskaite et al., 2025)

Research Applications

  • GPCR biased agonism and LHCGR signaling studies
  • Steroidogenesis and StAR protein pathway investigation
  • Reproductive endocrinology and spermatogenesis models
  • Endometrial receptivity and epigenetic regulation research
  • Maternal-fetal immune tolerance investigation
  • Angiogenesis and EG-VEGF pathway studies

Research Use Only. This product is supplied for in vitro laboratory investigation by qualified researchers. Not for human or veterinary consumption, diagnosis, treatment, prevention, or cure of any condition. Not approved by the FDA for human use.

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