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Original illustration for PEG-MGF research notes: abstract molecular artwork in orange and teal
Original illustration by USA Peptide Vendors; artistic, not a structural model.

Growth & signaling research peptides

Sourcing PEG-MGF, step by step

PEGylated form of mechano growth factor (MGF), the E-domain peptide of the IGF-1Ec splice variant. Unmodified MGF E-peptide increased myoblast proliferation in culture.

GrowthPEGylated mechano growth factorUpdated 2026-11-09

  1. Confirm what PEG-MGF is

    PEGylated peptides vary with the PEG chain length, and no public database lists this material, so no chemistry values are shown.

    Verified 2026-11-09 against Yang & Goldspink 2002 (PubMed 12095637). Values we couldn't verify are left out.

  2. Know the proposed mechanism

    Unmodified MGF E-peptide increased myoblast proliferation in culture. Purgo sells PEG-MGF only inside the GLP-4 Meta blend.

    Mechanism map

    Evidence level: Preclinical: cell culture (unPEGylated peptide). All mechanism maps

    PEG-MGF mechanism diagramMGF E-peptide raised myoblast proliferation but delayed differentiation. Targets: Myoblasts. Reported in culture: Proliferation ↑. Effect reported: Differentiation delayed.PEG-MGF mechanism mapMGF E-peptide raised myoblast proliferation but delayed differentiationPEG-MGFPEGylated MGF E-peptideMyoblasts[1]Proliferation ↑[1]Differentiation delayed[1]Evidence: Preclinical: cell culture (unPEGylated peptide). Numbers in brackets refer to thecited sources.usapeptidevendors.com · Research Use OnlyCELLS STUDIEDREPORTED IN CULTUREEFFECT REPORTED
    The cited study used unPEGylated MGF; PEGylation changes half-life and was not tested there. Open SVG
    1. Yang SY et al. Different roles of the IGF-I Ec peptide (MGF) and mature IGF-I in myoblast proliferation and differentiation. FEBS Lett. 2002;522:156-60.

  3. Compare two documented suppliers

  4. Verify the lot before use

FAQ

What is PEG-MGF?

PEGylated form of mechano growth factor (MGF), the E-domain peptide of the IGF-1Ec splice variant. Unmodified MGF E-peptide increased myoblast proliferation in culture. Purgo sells PEG-MGF only inside the GLP-4 Meta blend.

Is research-grade PEG-MGF for human use?

No. Vendor material is sold for Research Use Only, not for human or veterinary use.