LifeTein offers promotional pricing on selected research peptides, cell-permeable peptides (CPPs), recombinant proteins, and monoclonal antibodies. We also provide a broad catalog of cytokines, growth factors, chemokines, CD antigens, neurotrophins, hormones, enzymes, viral antigens, natural proteins, monoclonal antibodies, and polyclonal antibodies for life science research.
Featured Peptide Promotions
Explore selected peptide products for sortase-mediated ligation, targeting, labeling, cyclic peptide research, and conjugation workflows. These products are useful in protein labeling, site-specific bioconjugation, targeting studies, and assay development.
Featured LPETG and Sortase Motif Peptides
The LPXTG motif is recognized by Staphylococcus aureus Sortase A (SrtA) and is widely used in site-specific ligation and protein conjugation workflows. LifeTein offers biotinylated, fluorescently labeled, and custom-modified LPETG peptides for research applications.
| Cat. No. | Product Name | Applications | Price | Order |
|---|---|---|---|---|
| 5467 | Biotin-Ahx-LPETGS-NH2 | LPXTG motif recognized by Sortase A (SrtA); amidated form | $280 |  |
| 6142 | Biotin-Ahx-LPETGS-COOH | LPXTG motif recognized by Sortase A (SrtA); free acid form | $280 | |
| 5716 | Biotin-AALPETG*G | 2-hydroxyacetic acid modified LPETG-related peptide | $320 | |
| 6148 | Biotin-Ahx-LPETG-NH2 | LPETG motif for sortase-mediated ligation research | $280 | |
| 5747 | Biotin-ALPETGG | LPETG motif peptide for SrtA-related applications | $280 | |
| 5989 | Cy5-Cys-HHHHHHHHHLPETGG | Cy5-labeled LPETG peptide | $480 | |
| 35816 | VC-PAB-MMAE-LPETGG | Monomethyl auristatin E (MMAE) conjugate | $420 | |
Fluorescent and Labeled LPETGS / LPETGG Peptides
These labeled LPETG-related peptides are useful for fluorescence-based tracking, conjugation, imaging, and ligation studies. Additional fluorescent dyes, PEGs, and custom modifications are available upon request.
| Product | Application |
|---|---|
| Cys-LPETGS | Reactive cysteine-containing LPETGS peptide |
| FITC-Ahx-LPETGS | FITC-labeled LPETGS peptide |
| Rhodamine B-Ahx-LPETGS | Rhodamine-labeled LPETGS peptide |
| 800CW-Ahx-LPETGG | IRDye 800CW-labeled peptide |
| 700DX-Ahx-LPETGG | IRDye 700DX-labeled peptide |
| Alexa 647-C-LPETG | Alexa 647 conjugation on cysteine |
| {Cy3}-CLPETGG | Cy3-labeled peptide |
| JF549-LPETGG | JF549 NHS ester conjugation |
| Biotin-K(Cy5.5)-LPETGG | Biotin and Cy5.5 dual-labeled peptide |
| Ac-K(Cy7)-LPETGG | Cy7 NHS conjugation on lysine side chain |
| Ac-K(Cy3)-LPETGG | Cy3 NHS conjugation on lysine side chain |
| Ac-K(Cy5.5)-LPETGG | Cy5.5 NHS conjugation on lysine side chain |
| Cy5-GLPETGG | Cy5 conjugation on N-terminus |
| Alexa546-GGLPETGGHH | Alexa546-labeled LPETGG peptide |
Featured Cell-Permeable Peptides (CPPs)
Cell-permeable peptides (CPPs) are short peptides, typically 10-30 amino acids in length, that can cross cellular membranes independently of a membrane receptor. These peptides are widely used for intracellular delivery of peptides, proteins, fluorescent dyes, nucleic acids, and nanoparticles.
LifeTein offers a variety of in-stock CPPs and CPP variants ready for conjugation or direct use in research applications. View the full category of Cell Permeable Peptides.
| Cat. No. | Product | Price / Availability |
|---|---|---|
| LT12005 | Stearyl-R8: Stearyl-RRRRRRRR-NH2 | |
| LT12013 | FITC-R8: FITC-Stearyl-RRRRRRRR | |
| LT35796 | C(Npys)-(Arg)9: C(Npys)RRRRRRRRR-NH2 | |
| LT1615 | TAT (47-57): YGRKKRRQRRR | |
| LT5549 | HIV-1 Tat (48-60): GRKKRRQRRRPPQ |
Additional CPPs and Variants
We offer a wide range of CPPs, including penetratin, TAT variants, oligomeric arginine peptides, transdermal peptides, targeting peptides, and fusion peptides. Many are available in stock as crude peptides, with HPLC purification available in approximately 5 business days.
| CPP Family | Examples | Availability |
|---|---|---|
| Antennapedia Peptide |
RQIKIWFQNRRMKWKK C(Npys)-RQIKIWFQNRRMKWKK C-RQIKIWFQNRRMKWKK RQIKIWFQNRRMKWKK-C |
In Stock |
| Penetratin |
RQIKIWFQNRRMKWKK-GG C-RQIKIWFQNRRMKWKK-GG RQIKIWFQNRRMKWKK-GG-C |
In Stock |
| Penetratin and Labeled Antennapedia Peptides |
RQIRIWFQNRRMRWRR C-RQIRIWFQNRRMRWRR {FITC-LC}-RQIKIWFQNRRMKWKK {5-FAM}-RQIKIWFQNRRMKWKK {Cy3}-RQIKIWFQNRRMKWKK {Cy5}-RQIKIWFQNRRMKWKK {Alexa488}-RQIKIWFQNRRMKWKK |
In Stock |
| (Arg)9 Oligomer Peptides and Labeling Variants |
Stearyl-R8 FITC-Stearyl-R8 RRRRRRRRRC C(Npys)RRRRRRRRR C(Npys)rrrrrrrrr, r = D-amino acid {FAM}-RRRRRRRRR {TAMRA}-RRRRRRRRR {Biotin}-RRRRRRRRR {Cy Dyes}-RRRRRRRRR {Alexa Dyes}-RRRRRRRRR |
In Stock |
| TAT (47-57) and Variants |
YGRKKRRQRRR C-YGRKKRRQRRR YGRKKRRQRRR-C {Biotin}-YGRKKRRQRRR {FAM}-YGRKKRRQRRR {TAMRA}-YGRKKRRQRRR YGRKKRRQRRRGGGC(Npys) C(Npys)YGRKKRRQRRR-K(FAM) MDYKDHDGDYKDHDIDYKDDDDK |
In Stock |
| Additional CPPs and Fusion Peptides |
HIV-1 Tat fusion peptides TAT GluR23 variants TAT-NSF222 fusion peptide TAT-NSF700 fusion peptide Mastoparan peptide NGR peptide (CD13 ligand) Buforin 2 Rabies virus glycoprotein (RVG) RVG-9R IKKgamma NEMO binding domain peptide KALA SN50 NF-kB inhibitor pVEC SV40 NLS peptides TfR targeting peptide Transdermal peptide Transportan Pep-1 Pep-1-cysteamine Cardiac targeting peptide (CTP) |
Crude peptide in stock; HPLC purification available in 5 business days |
Click here for the full list of Cell Permeable Peptides.
Related Featured Peptides
| Cat. No. | Product | Description | Price | Order |
|---|---|---|---|---|
| 8197 | FAM-Cys-iRGD | FAM-Cys-Ahx-CRGDKGPDC with disulfide bond | $750 | |
| LT216216 | Cyclo RGD peptide | CRGDKGPDC-NH2 with disulfide bond | $300 | |
| LT8229 | GRGDSC RGD peptide | NH2-GRGDSC-COOH | $150 | |
| LT8230 | GRGDS RGD peptide | NH2-GRGDS-COOH | $150 | |
Featured Protein Promotions
LifeTein offers selected recombinant proteins and control proteins at promotional pricing for research use. Additional cytokines, growth factors, enzymes, and viral antigens are also available.
| Cat. No. | Product | Price | Data Sheet | Order |
|---|---|---|---|---|
| LT13501 | Macrophage Colony Stimulating Factor (M-CSF) |  |
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| LT0425 | MultiTag Control Protein for Western Blot |  |
Featured Antibody Promotions
Our featured antibody products include epitope tag antibodies, loading control antibodies, and selected signal transduction antibodies for Western blot, immunoprecipitation, ELISA, and related applications.
Epitope Tag Antibodies
| Cat. No. | Product Name | Applications | Price | Data Sheet | Order |
|---|---|---|---|---|---|
| LT0420 |
Anti DYKDDDDK (FLAG) Monoclonal Antibody Buy one FLAG antibody and get one FLAG peptide free. Use code: FREEFLAG at checkout. |
Dot, ELISA, IS, IP, WB | |
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| LT0426 | Anti His Monoclonal Antibody | Dot, ELISA, IP, IS, WB | |
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| LT0422 | Anti HA Monoclonal Antibody | Dot, ELISA, IP, IS, WB | $150 | |
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| LT0421 | Anti cMyc Monoclonal Antibody | Dot, ELISA, IP, IS, WB | |
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| LT0423 | Anti GST Monoclonal Antibody | Dot, ELISA, IP, IS, WB | |
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| LT9992 | Anti V5 Monoclonal Antibody | Dot, ELISA, IP, IS, WB | $150 | |
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| LT9993 | Anti RFP Monoclonal Antibody | Dot, ELISA, IP, IS, WB | $200 | |
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| LT9994 | Anti GFP Monoclonal Antibody | Dot, ELISA, IP, IS, WB | $200 | |
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Loading Control Antibodies
| Cat. No. | Product | Applications | Price | Data Sheet | Order |
|---|---|---|---|---|---|
| LT9999 | Anti β-Actin Monoclonal Antibody | Dot, ELISA, IS, WB | $250 | |
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| LT9995 | Anti GAPDH Monoclonal Antibody | Dot, ELISA, IS, WB | $250 | |
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| LT9991 | Anti β-Tubulin Monoclonal Antibody | Dot, ELISA, IS, WB | $250 | |
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Signal Transduction Antibodies
| Cat. No. | Product | Applications | Price | Data Sheet | Order |
|---|---|---|---|---|---|
| LT9998 | Anti ERK1 (E19) Monoclonal Antibody | IP, WB | $300 | |
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| LT9997 | Anti ERK1 (E32) Monoclonal Antibody | IP, WB | $300 | |
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| LT9996 | Anti ERK1/2 Monoclonal Antibody | WB | $300 | |
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Looking for More Promotional Products?
Contact us for special pricing on peptides, recombinant proteins, antibodies, fluorescent conjugates, and custom research reagents.
