Compound record

Gonadorelin

GnRH; LHRH; luteinizing hormone-releasing hormone

Linear C-terminal amidation N-terminal pyroglutamate

Sequence

pEHWSYGLRPG-NH2

EHWSYGLRPG

Length 10 residues
Formula C55H75N17O13 elemental composition
Molecular weight 1,182.29 g/mol · average mass
CAS number 33515-09-2 registry ID
PubChem CID 638793 PubChem ID

Length counts residues; formula and mass are the stored free-base values from cited sources; CAS and PubChem identify the substance in public registries. More detail: length & peptide bonds, molecular weight

Structure & modifications

Linear decapeptide. Position 6 glycine is a hinge; many superagonists substitute D-residues here.

Notes

Gonadorelin is synthetic mammalian GnRH I / LHRH: pEHWSYGLRPG-NH2, matching the endogenous hypothalamic decapeptide.

Position 6 glycine is a conformational hinge. Superagonists such as leuprolide and goserelin remodel this site and the C-terminus for longer action.

AnalogueKey change vs gonadorelin
Gonadorelin (this)Native decapeptide, Gly6, Gly10-NH2
LeuprolideD-Leu6, Pro9-NHEt (9-mer ethylamide)
GoserelinD-Ser(tBu)6, Azagly10-NH2

Identifiers: CAS 33515-09-2, PubChem CID 638793. Classification: linear with pyroglutamate + amidation tags.

Primary-source references

  • PubChem CID 638793 — gonadorelin
  • UniProt P01148 (progonadoliberin-1)
  • Matsuo H. et al. Structure of the porcine LH- and FSH-releasing hormone. Biochem. Biophys. Res. Commun. 1971.

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