• Skip to primary navigation
  • Skip to main content
  • Skip to footer

LKT Labs

Biochemicals for Life Science Research

  • Products
    • New Products
    • Cancer Biology
    • Cardiovascular
    • Endocrine Signaling and Immunology
    • Metabolic and GI Pathology
    • Microbiology
    • Natural Products
    • Neuroscience
    • Peptides
    • Pharmaceutical Impurities and Derivatives
    • Stem Cell Modulators
  • Services
    • Custom Synthesis
    • Natural Product Isolation
    • Analytical Services
  • Int’l Distributors
  • Support
    • About LKT Labs
    • General Inquiry
    • Bulk Quote Request
    • Document Request
    • Technical Support
    • Catalog Request
    • Product Flyers
  • Contact Us
  • Cart
  • Login / Register
Rigin

Rigin

Product ID R3224
Cas No. 77727-17-4
Purity ≥95%
Product Unit SizeCostQuantityStock
5 mg $98.40 In stock
10 mg $166.80 In stock
25 mg $294.60 In stock
Bulk Quote

Quicklinks

  • Description
  • Product Info
  • Shipping and Storage
  • Downloads
  • References
  • Description
  • Product Info
  • Shipping and Storage
  • Downloads
  • References
  • Custom Order

Description

Rigin is a tuftsin-like tetrapeptide with the sequence G-Q-P-R that is derived from IgG. Rigin exhibits immunomodulatory activity, stimulating phagocytosis, activating polymorphonuclear lymphocytes and macrophages, and protecting against stress-induced damage.

Product Info

Cas No.

77727-17-4

Purity

≥95%

Formula

C18H32N8O6

Formula Wt.

456.51

IUPAC Name

(2S)-2-[[(2S)-1-[(2S)-5-amino-2-[(2-aminoacetyl)amino]-5-oxopentanoyl]pyrrolidine-2-carbonyl]amino]-5-(diaminomethylideneamino)pentanoic acid

Synonym

G-Q-P-R, GQPR

Solubility

Soluble in water.

Shipping and Storage

Store Temp

-20°C

Ship Temp

Ambient

Downloads

Info Sheet

R3224 Info Sheet PDF

References

Dutta RC, Puri A, Anand N. Immunomodulatory potential of hydrophobic analogs of Rigin and their role in providing protection against Plasmodium berghei infection in mice. Int Immunopharmacol. 2001 May;1(5):843-55. PMID: 11379040.

Klusha VE, Mutsenietse RK, Svirskis ShV, et al. Neuroimmunoregulatory properties of short protein fragments in rats exposed to immobilization stress. Biull Eksp Biol Med. 1987 Aug;104(8):186-7. PMID: 2887222.

Veretennikova NI, Chipens GI, Nikiforovich GV, et al. Rigin, another phagocytosis-stimulating tetrapeptide isolated from human IgG. Confirmations of a hypothesis. Int J Pept Protein Res. 1981 Apr;17(4):430-5. PMID: 7309346.

Custom Order

  • Size of single unit expressed as number (e.g. '500' in the case of 500 mg)
  • Total quantity of unit size desired (e.g. '10' in the case of 10 x 500 mg). If only one unit is desired, you may leave this blank.
  • This field is for validation purposes and should be left unchanged.

Related Products

  • H9861

    Hypericin

    Naphthodianthrone found in Hypericum; dopamine ...

    ≥98%
  • A7200

    AS-252424

    p110γ PI3K inhibitor, potential TRPC1/5/6 nega...

    ≥98%
  • B465806

    BLU-667

    RET inhibitor.

    ≥98%
  • N3448

    Nimodipine

    L-type Ca2+ channel blocker.

    ≥98%
  • P2513

    Phenyl Isothiocyanate

    ITC found in cruciferous vegetables.

    ≥98%
  • V0146

    Valsartan

    AT1 inhibitor.

    ≥98%
  • B030960

    BAY-1082439

    PI3K inhibitor.

    ≥98%
  • C4000

    CK-636

    Arp2/3 inhibitor.

    ≥98%
  • V3444

    Vilazodone

    5-HT1A partial agonist, SERT inhibitor.

    ≥98%
  • D3215

    Didymin

    Flavonoid glycoside found in citrus fruit.

    ≥98%
  • N5210

    Nociceptin

    Endogenous neuropeptide, involved in opioid sig...

    ≥98%
  • C3260

    Ciprofibrate

    Fibrate; PPARα agonist.

    ≥98%
  • N8460

    NVP-BHG712

    EphB4 inhibitor.

    ≥98%
  • C0368

    Carveol

    Terpene alcohol found in spearmint oil; TRPV3 a...

    ≥99%
  • K7602

    KT5823

    PKG inhibitor.

    ≥98%
  • T8000

    Tubacin

    HDAC6 inhibitor.

    ≥96%
  • C1620

    Ceftiofur Hydrochloride

    β-lactam; penicillin binding protein inhibitor...

    ≥90%
  • C084099

    CCCP

    Efflux pump inhibitor

    ≥99%
  • C0264

    L-Carnitine Tartrate

    Endogenous quaternary ammonium, required for fa...

    ≥98%
  • H9802

    Hyaluronic Acid Sodium (7-10 kDA)

    Glycosaminoglycan

Footer

  • Contact Us
  • About Us
  • Site Map
  • Terms and Conditions
LKT Laboratories, Inc.
545 Phalen Blvd.
St. Paul MN, 55130

Ph: (888)-558-5227
Fax: (888)-558-7329

©2025 LKT Laboratories, All Rights Reserved - Products for research use only