1. Home
  2. Products
  3. Catalog Peptides
  4. HIV-1 gag Protein Fragments
  5. HIV (gp120) Fragment (421-438)

HIV (gp120) Fragment (421-438)

HIV (gp120) Fragment (421-438) trifluoroacetate salt captures a structurally informative region associated with molecular-recognition interfaces. The sequence supports investigations of conformational changes relevant to protein-binding events. Its trifluoroacetate form aids in reliable dissolution and assay reproducibility. Research applications include structural mapping and peptide-protein interaction studies.

Designed for biological research and industrial applications, not intended for individual clinical or medical purposes.

CAT No: HB00161

CAS No:129318-38-3

Synonyms/Alias:HIV (gp120) Fragment (421-438) trifluoroacetate salt;

Custom Peptide Synthesis
cGMP Peptide
  • Registration of APIs
  • CMC information required for an IND
  • IND and NDA support
  • Drug master files (DMF) filing
M.F/Formula
C99H148N24O25S2
M.W/Mr.
2138.54
Sequence
Three-Letter Code: H-Lys-Gln-Phe-Ile-Asn-Met-Trp-Gln-Glu-Val-Gly-Lys-Ala-Met-Tyr-Ala-Pro-Pro-OH trifluoroacetate salt
One-Letter Code: KQFINMWQEVGKAMYAPP

Useful Tools

Peptide Calculator

Abbreviation List

Peptide Glossary

If you have any peptide synthesis requirement in mind, please do not hesitate to contact us at . We will endeavor to provide highly satisfying products and services.

Featured Services
Custom Conjugation ServicePeptide Modification ServicesPeptide Nucleic Acids SynthesiscGMP Peptide ServicePeptide CDMOEpitope Mapping ServicesPeptide Synthesis ServicesPeptide Analysis Services
Hot Products
Aviptadil Acetate

Aviptadil Acetate is a vasoactive intestinal peptide for lung and immune research. Purchase this synthetic peptide for studies on pulmonary health and inflammation.

Read More Read More
Alarelin acetate

Alarelin Acetate is a high-purity synthetic peptide used in fertility and ovulation research. Buy Alarelin peptide online from a trusted peptide supplier for advanced hormonal studies.

Read More Read More
Angiotensin II

Angiotensin II peptide regulates blood pressure and vascular constriction. Purchase this synthetic research peptide to support cardiovascular and renal function studies.

Read More Read More
Angiotensin II Acetate

Angiotensin II Acetate is a potent research peptide regulating blood pressure and vascular tone. Purchase this synthetic peptide to support cardiovascular and renal studies.

Read More Read More
Fertirelin Acetate

Fertirelin Acetate is a synthetic peptide that promotes ovulation and fertility. Purchase Fertirelin research peptide for breeding and hormonal studies.

Read More Read More
Carperitide

Carperitide is a human atrial natriuretic peptide analog for heart and kidney research. Buy Carperitide peptide online to study diuretic and cardiovascular effects.

Read More Read More
Thymosin β4 Acetate

Thymosin β4 Acetate promotes wound healing, tissue repair, and cell regeneration. Buy Thymosin beta 4 peptide powder for research on recovery and regenerative medicine.

Read More Read More
Icatibant

Icatibant is a potent bradykinin B2 receptor antagonist peptide for inflammation and allergy research. Buy Icatibant peptide from a reliable peptide supplier to support biomedical studies.

Read More Read More
Argipressin

Argipressin peptide regulates water balance and blood pressure in biological systems. Shop pure Argipressin peptide online for cardiovascular and kidney research.

Read More Read More
Carbetocin

Carbetocin is a synthetic oxytocin analog that promotes uterine contraction and postpartum recovery. Buy Carbetocin peptide powder from a professional supplier for reproductive research.

Read More Read More
About us

Creative Peptides is a trusted CDMO partner specializing in high-quality peptide synthesis, conjugation, and manufacturing under strict cGMP compliance. With advanced technology platforms and a team of experienced scientists, we deliver tailored peptide solutions to support drug discovery, clinical development, and cosmetic innovation worldwide.

From custom peptide synthesis to complex peptide-drug conjugates, we provide flexible, end-to-end services designed to accelerate timelines and ensure regulatory excellence. Our commitment to quality, reliability, and innovation has made us a preferred partner across the pharmaceutical, biotechnology, and personal care industries.

Our Customers