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Featured Peptide Promotions and Research Peptide Products

LifeTein provides peptides, cytokines, growth factors, chemokines, CD antigens, neurotrophins, hormones, enzymes, viral antigens, recombinant proteins, natural proteins, monoclonal antibodies, and polyclonal antibodies. This page highlights selected peptide promotions, including beta-amyloid peptides, amylin, epitope tag peptides, cell-penetrating peptides, and LPETG motif peptides for sortase-mediated ligation and conjugation studies.


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peptide promotion beta amyloid peptide

Promotional Pricing

Selected peptide products are available at discounted prices for research use.

Neuroscience Peptides

Beta-amyloid and amylin peptides for Alzheimer’s disease and related research applications.

Sortase and Tag Peptides

LPETG motif peptides, labeling peptides, and epitope-tag peptides for conjugation and purification studies.

Featured Beta-Amyloid and Amylin Peptides

Order Amylin (1-37), human at the discounted price.

Beta-Amyloid (Aβ or Abeta) is a peptide processed from amyloid precursor protein (APP). Beta-amyloid is typically a 39-43 amino acid peptide derived from the extracellular and transmembrane regions of APP. APP is expressed as several isoforms, including proteins of 695, 751, and 770 amino acids.

Beta-amyloid plays a central role in information processing in the brain, and abnormal amyloid deposition is a major histopathological hallmark of Alzheimer’s disease. Aβ40 and Aβ42 are widely studied because of their association with neurotoxicity and amyloid plaque formation in Alzheimer’s disease and related disorders.


Featured LPETG and Sortase Motif Peptides

LPETG and LPXTG motif peptides are widely used in sortase-mediated ligation, protein labeling, and site-specific conjugation workflows. LifeTein offers biotinylated, fluorescently labeled, and modified LPETG peptides for research applications.

LPETG LPXTG motif
Cat. No. Product Name Applications Price Order
5467 Biotin-Ahx-LPETGS-NH2 LPXTG motif recognized by Sortase A (SrtA), amidated form $280
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6142 Biotin-Ahx-LPETGS-COOH LPXTG motif recognized by Sortase A (SrtA), free acid form $280
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5716 Biotin-AALPETG*G, G* = 2-hydroxyacetic acid 2-hydroxyacetic acid modified peptide $320
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6271 FITC-Ahx-LPETGS FITC labeling of peptides by SrtA $280
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6272 Rhodamine B-Ahx-LPETGS Rhodamine labeling of peptides by SrtA $450
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6148 Biotin-Ahx-LPETG-NH2 LPETG motif peptide $280
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5747 Biotin-ALPETGG LPETG motif, SrtA applications $280
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5989 Cy5-Cys-HHHHHHHHHLPETGG Cy5-labeled peptide $480
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35816 VC-PAB-MMAE-LPETGG Monomethyl auristatin E (MMAE) conjugate $420
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Other Featured Peptide Products

This section highlights selected neuroscience peptides, epitope-tag peptides, cell-penetrating peptides, and commonly used research peptides.

Cat. No. Product Name Applications Price Order
LT2460 Beta-Amyloid (1-42), human Alzheimer's disease study $1,500 $300
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LT1340 DYKDDDDK-Cysteine peptide (FLAG) Control peptide, affinity purification $50
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LT12006 HHHHHH-Cysteine Affinity purification $50
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LT12013 FITC-Stearyl-R8 Cell-penetrating peptide, Stearyl-RRRRRRRRGK(FITC) $150 $120
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LT12005 Stearyl-R8 Cell-penetrating peptide, Stearyl-RRRRRRRR $260 $180
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LT12001 PolyLys-Cys-SH KKKKKKC $55 $30
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LT2353 V5 Epitope Tag V5 epitope, affinity purification $153 $130
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LT110006 Amylin (1-37), human 37 amino acid polypeptide $400 $199
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Need Help Finding the Right Peptide?

Contact us for product recommendations, bulk pricing, custom peptide requests, and related research reagents.

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Displaying 1881 to 1890 (of 3020 Products)
Price Product Name
$122.00
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IRBP (1-20), Human

Catalog Number LT9394 Product Name IRBP (1-20), Human Product Quantity 1 mg Sequence GPTHLFQPSLVLDMAKVLLD Molecular Weight 2194.8 Purity ≥95% Scientific Background Human IRBP(1-20) contains a major uveitogenic epitope capable of...
$320.00
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IRBP (161-180)

Catalog Number LT9393 Product Name IRBP (161-180) Product Quantity 1 mg Sequence SGIPYIISYLHPGNTILHVD Molecular Weight 2210.5 Purity ≥95% Scientific Background IRBP(161-180) is a major pathogenic T-cell epitope from interphotoreceptor...
$194.40
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IRL-1038

Product Name IRL-1038 Product Quantity 5mg Catalog Number LT1697 Molecular Weight 1411.7 Formula C68H94N14O15S2 Sequence Cys-Val-Tyr-Phe-Cys-His-Leu-Asp-Ile-Ile-Trp Scientific Background IRL-1038 is a 11-residue synthetic peptide with the sequence...
$252.72
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IRL-1720

Product Name IRL-1720 Product Quantity 5mg Catalog Number LT1698 Molecular Weight 1762.01 Formula C85H120N18O23 Sequence Ac-Asp-Lys-Glu-Ala-Val-Tyr-Phe-Ala-His-Leu-Asp-Ile-Ile-Trp Scientific Background IRL-1720 is a 14-residue synthetic peptide...
$275.00
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IRS-1 pTyr608 Peptide

Catalog Number LT9471 Product Name IRS-1 pTyr608 Peptide Product Quantity 1 mg Sequence LHTDDGpYMPMSPGVAP Purity ≥95% Scientific Background Phosphorylation of IRS-1 Tyr608 generates a docking site for SH2-domain signaling proteins including...
$260.00
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IRS-1 Tyr608 Peptide

Catalog Number LT9470 Product Name IRS-1 Tyr608 Peptide Product Quantity 1 mg Sequence LHTDDGYMPMSPGVAP Purity ≥95% Scientific Background IRS-1 Tyr608 lies within a signaling motif involved in insulin-receptor downstream interactions. The...
$252.72
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IRS1 - derived peptide

Product Name IRS1 - derived peptide Product Quantity 5mg Catalog Number LT1699 Molecular Weight 1513.81 Formula C63H108N20O19S2 Sequence Lys-Lys-Ser-Arg-Gly-Asp-Tyr-Met-Thr-Met-Gln-Ile-Gly-NH2 Scientific Background IRS1 - derived peptide is a 13-res...
$287.00
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IRS1 Phospho-Ser307 Peptide

Catalog Number LT9668 Product Name IRS1 Phospho-Ser307 Peptide Sequence ESITAT(pS)PASMVGGK Product Quantity 5 mg Purity ≥95% Molecular Weight 1515.59 Formula C59H103N16O26SP Scientific Overview Human insulin receptor substrate 1 peptide spanning...
$87.00
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IRS1 Phosphoserine 635 Peptide, Amidated

Catalog Number LT9518 Product Name IRS1 Phosphoserine 635 Peptide, Amidated Sequence DYMPM(pS)PKSVSAPQQI-NH2 Product Quantity 50 µg Purity ≥95% Molecular Weight 1858.05 Formula C77H125N20O27S2P Scientific Overview Human IRS1 phosphopeptide...
$265.00
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IRS1 Residues 301-315 Peptide

Catalog Number LT9669 Product Name IRS1 Residues 301-315 Peptide Sequence ESITATSPASMVGGK Product Quantity 4 mg Purity ≥95% Molecular Weight 1435.61 Formula C59H102N16O23S Scientific Overview Nonphosphorylated human insulin receptor substrate 1...
Displaying 1881 to 1890 (of 3020 Products)