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Viral Peptides · Viral / antiviral research peptide · HIV-009

HIV (gp120) Fragment (421-438)

Research use · ships internationally
$110.00 / 1mg vial
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HIV (gp120) Fragment (421-438) reference vial
Drug class
Viral / antiviral research peptide
Status
Research use only
Catalog code
HIV-009
Also known as
HIV-009
Reviewed
2026-06-01 · Kindr Health Clinical Team

What HIV (gp120) Fragment (421-438) is studied for

  • Viral fusion and entry-inhibitor screening
  • Viral protease activity and inhibitor discovery
  • Antigenic-epitope mapping and vaccine research
  • Structure–activity relationship (SAR) on viral surface proteins

Mechanism of action

HIV (gp120) Fragment (421-438) sits within the Viral Peptides research class (CPC reference HIV-009). Viral peptides map to functional regions of viral proteins — fusion peptides, receptor-binding domains, protease cleavage sites, and immunodominant epitopes — enabling targeted studies of entry, replication, and immune recognition. Investigators typically incorporate HIV (gp120) Fragment (421-438) as a reference standard, tool ligand, or substrate in the assay contexts listed above. Pseudovirus entry, plaque-reduction, protease-activity, and ELISA readouts.

Frequently asked questions

What is HIV (gp120) Fragment (421-438)?

HIV (gp120) Fragment (421-438) (CPC catalog code HIV-009) is a synthetic viral / antiviral research peptide in the viral peptides category. It is provided as a lyophilized ~1 mg vial for in-vitro research use only.

What is HIV (gp120) Fragment (421-438) studied for?

Published and internal research programs use HIV (gp120) Fragment (421-438) as a reference standard in viral peptides workflows — for example, viral fusion and entry-inhibitor screening and viral protease activity and inhibitor discovery. Human clinical evidence is not established.

Is HIV (gp120) Fragment (421-438) FDA-approved for human use?

No. HIV (gp120) Fragment (421-438) is a research-grade reference peptide and is not approved by the FDA or any national regulator for human or veterinary therapeutic use. It is offered exclusively for in-vitro laboratory research and does not ship to the United States for consumer use.

How is HIV (gp120) Fragment (421-438) typically used in the lab?

In a viral peptides workflow, HIV (gp120) Fragment (421-438) is reconstituted in sterile buffer or DMSO (solubility-dependent) and applied in the researcher's chosen assay format. Pseudovirus entry, plaque-reduction, protease-activity, and ELISA readouts.

How should HIV (gp120) Fragment (421-438) be stored?

Store lyophilized at −20 °C under BSL-appropriate conditions where required. Follow your institution's standard operating procedures for handling synthetic peptides.

Where does the HIV (gp120) Fragment (421-438) product page point to?

This kindr reference page mirrors CPC Scientific's catalog metadata for HIV-009. The upstream reference sheet — including sequence, purity, MW, and application notes where published — is linked from the buy panel. All orders placed on kindr Peptides ship internationally under research-use terms only.

What quality specifications apply to HIV (gp120) Fragment (421-438)?

Research-grade peptides in the CPC catalog are synthesized by solid-phase peptide synthesis (SPPS), purified by preparative RP-HPLC, and characterized by analytical HPLC and mass spectrometry. Typical purity is ≥95%; certificate of analysis is available on request.

Internal reference sheetOpen the HIV (gp120) Fragment (421-438) physicochemical & handling reference →Upstream reference sheetView CPC Scientific catalog page for HIV-009 →Add to cart · International research catalogBuy HIV (gp120) Fragment (421-438) in the kindr Peptides Shop →

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Research & medical disclosure. This page is educational reference content reviewed by a licensed physician. It is not medical advice and does not establish a clinician–patient relationship. Peptides offered on the kindr Peptides Shop are sold for in vitro laboratory research purposes only and ship internationally — not to the United States. For U.S. clinical care, use the kindr Longevity intake.