Proteins

We provide MHC Complexes, Virus-Like Particles (VLPs) Antigens, Laminin 521, Cas9, Cas12a, cytokines, growth factors, chemokines, CD antigens, neurotrophins, hormones, enzymes, viral antigens, recombinant proteins, natural proteins, monoclonal antibodies, and polyclonal antibodies.


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Featured Proteins

MHC (Major Histocompatibility Complex)

Peptide-ready Major Histocompatibility Complexes (MHCs) are a critical component of the adaptive immune system, responsible for presenting antigens to T-cells, which play a crucial role in immune responses. MHC molecules are highly polymorphic cell surface proteins found in vertebrates, including humans, and are encoded by a complex gene family. The related linear peptidic epitope sequences are: EVDPIGHLY, NTDNNLAVY, YTDNWLAVY, ALYVDSLFFL, CLGGLLTMV, ELAGIGILTV, FLLTRILTI, FMNKFIYEI, GLYDGMEHL, GVYDGREHTV, HMTEVVRHC, KLPQLCTEL, KLVVVGAGGV, KMVELVHFL, KVAELVHFL, KVLEHVVRV, LMLGEFLKL, NLVPMVATV, PLFQVPEPV, RMFPNAPYL, SLLMWITQC, SLLMWITQV, SLLQHLIGL, YLEPGPVTA, YMLDLQPET, FMNKFIYEI, VVGAVGVGK, SSCSSCPLTK, VVGADGVGK, VVVGAAGVGK, VVVGAVGVGK, AYACNTSTL, IMPKAGLLI, VYFFLPDHL, GADGVGKSAL, VMAPKTLVL, RIIPRHLQL, SIINFEKL, AMAPRTLLL, and NQKLIANQF.

LifeTein provides single-chain peptide-MHC monomers, biotinylated MHC monomers, tetramers, and biotinylated tetramers, MHC-I Virus-Like Particles, and multivalent fluorescent MHC-I Virus-Like Particles.Other catalog products include NY-ESO-1, KRAS, MAGE, GP100, AFP, LMP2, Survivin, HBV, HPV, WT-1, and P53. Our functional peptide-ready MHCs products are a ready-to-use loading system for loading neoantigen peptides to form a new complete MHC peptide complex.

Applications of peptide-ready MHCs:

  • Research: Peptide-MHC tetramers or multimers are widely used in immunological research to detect and characterize antigen-specific T-cells. These reagents enable the precise identification and quantification of T-cells recognizing specific peptide antigens.
  • Vaccine development: Understanding the peptide epitopes presented by MHC molecules is crucial for designing vaccines that can elicit effective T-cell responses against pathogens or cancer cells.
  • Immunotherapy: Peptide-based immunotherapies, such as peptide vaccines or adoptive T-cell therapy, utilize knowledge of peptide-MHC interactions to target specific antigens in cancer treatment and infectious disease control.

Virus-like particles (VLPs)-displayed antigens

LifeTein offers a series of Virus-like particles (VLPs)-displayed antigens. VLPs are nanoparticles derived from the capsid protein of a virus. Virus-like particles are used for antibody discovery for immunization and screening, affinity determination for ELISA, Surface Plasmon Resonance (SPR), in vivo pharmacokinetic analysis, CMC (Chemistry, Manufacturing, and Controls) method development, and CAR-T positive rate detection.

Search these featured VLPs from the search box above: Human GPRC5D Protein-VLP (LTP10647), Human CCR2b Protein-VLP (LTP10415), CD24 Protein-VLP (LTP10683), Human CD20 VLP, Human CD24 VLP, Human Claudin 18.2 VLP, Human Claudin 6 VLP, Biotinylated Human VLP Control, Mouse Claudin 6 VLP, Human SSTR2 VLP, Human Cannabinoid Receptor 2 Protein-VLP, Human A2AR VLP, Human TM4SF1 VLP, Human GPC3 (438-554) VLP, Mouse GPRC5D VLP, Cynomolgus GPRC5D VLP, Human GPC3 VLP, Human Adenosine receptor A2b Protein-VLP

CD3 proteins

LifeTein provides highly active CD3 proteins, including monomers, homodimers, heterodimers, and biotinylated proteins.

Here are the featured products: Biotinylated Cynomolgus CD3E&CD3D, hFc tag; Biotinylated Cynomolgus CD3E&CD3G, hFc tag; Cynomolgus CD3E, His tag; Human CD3E&CD3G, His tag; Mouse CD3E&CD3D, hFc tag; Human CD3E&CD3G, hFc tag; Biotinylated Human CD3E&CD3G, His tag; Biotinylated Human CD3E&CD3D, His Tag; Biotinylated Cynomolgus CD3E 1-27 peptide, hFc tag; Cynomolgus CD3E&CD3D, hFc tag; Human CD3E&CD3D, hFc tag; Biotinylated Human CD3E 1-27 peptide, hFc tag.

Immune Checkpoint Proteins

LifeTein produced a series of immune checkpoint proteins with multiple labels like biotin, FITC and PE. These products are available: Human EGFRVIII Protein, Human EGFR/HER1 Protein, Cynomolgus FAP Protein, Cynomolgus FOLR2 Protein, Human FOLR4/Juno Protein, Human GUCY2C, Human Her2/ErbB2 Protein and more. Please use the search box for more proteins.

Human leukocyte antigen-G (HLA-G) and receptors

We provide mammalian-derived HLA-G and their receptors, LILRB/LILRA, in various species and tags for first-in-class drug discovery. HLA-G mediates its function by binding to receptors on immune cells.

Featured Products include: Biotinylated Human APOE3; Human APOE4 hFc Tag; Human APOE4 His Tag; Biotinylated Human LILRB Domain 2; Biotinylated Human HLA-G; Human APOE3 His Tag; Biotinylated Human HLA-G Tetramer; Cynomolgus HLA-G; Human HLA-G Tetramer; Mouse APOE; Rhesus macaque HLA-G; Cynomolgus LILRA6.

Other Proteins

We have developed a high-quality Laminin 521 product and Human Wnt Surrogate-Fc Fusion Protein that can be applied to scientific research and preclinical development. Our active Cas9 protein carries a nuclear localization signal (NLS) design. The in-house active CRISPR-Cas12a enzyme can recognize and cut DNA at a specific site different from the prototypical Cas9. Order your Recombinant CRISPR Cas9 Protein and AsCas12a (CRISPR-associated nuclease Acidaminococcus sp. Cas12a) now.

                                                                                                                                                               
LT13501 Macrophage Colony Stimulating Factor (M-CSF)$650 $300
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LTP10120$406
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LT13513$320
download pdf data sheet
LT12010  $230
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Displaying 1 to 10 (of 1152 Products)
Price+ Product Name
$960.00 $0.00... more info
Recombinant SARS-CoV-2 Spike S1 Protein
Featured Product New! : Monoclonal Antibodies to Coronavirus SARS-CoV-2 RBD Domain Description :Recombinant SARS-CoV-2 Spike S1 Protein                                         Product : Recombinant protein of severe acute...
$60.00... more info
NHS-Activated Agarose Fast Flow
Catalog Number: LT441776 Packing Details: 1 ml prepacked column Support: 4% highly cross-linked spherical agarose Ligand: N-hydroxysuccinimide (NHS) activated Ligand Density: ~15-25 µmol NHS/ml drained medium Particle Size:45~165 μm...
$60.00... more info
Ni Sepharose Fast Flow
Catalog Number: LT441777 Packing Details: 1 ml prepacked column Support: 6% highly cross-linked spherical agarose Ligand: Ni Sepharose Fast Flow Ligand Density: ~40 mg histidine-tagged protein Particle Size:45~165 μm Maximum Flow Rate: 300...
$456.00 $99.00Save: 78% off... more info
Recombinant Human Fibroblast Growth Factor-basic (rh-bFGF)
Catalog Number:LT12012 (Out of Stock) Packing Details:100ug Formulation:Lyophilized from 5 mM PBS, pH 7.4. Mol. Wt.:17.2 kDa Resources: Escherichia coli Purity:≥95% by SDS-PAGE analysis Endotoxin:
$444.00 $99.00Save: 78% off... more info
Recombinant Human Vascular Endothelial Growth Factor
Catalog Number:LT12011 Packing Details: 10 µg Physical Appearance:Freeze-dried powder Mol. Wt.: 20 kDa Resources: Escherichia coli Purity: ≥ 95% Endotoxin: < 1.0 EU/µg protein Storage: -20°C in the dark Shelf Life: 3 years EC50:...
$110.00... more info
Human Serum Albumin Protein (LTP10601)
Product NameHuman Serum Albumin Protein (LTP10601) Catalog NumberLTP10601 Quantity100ug Price $ 110 In stock BackgroundHuman serum albumin (HSA), the most prominent protein in plasma, binds different classes of ligands at multiple sites. HSA...
$136.00... more info
Human FGF basic Protein (LTP10759)
Product NameHuman FGF basic Protein (LTP10759) Catalog NumberLTP10759 Quantity100ug Price $ 136 In stock BackgroundFGF basic is a member of the FGF family of at least 23 related mitogenic proteins which show 35-60% amino acid conservation. FGF...
$136.00... more info
Mouse IgG1 Fc Protein (LTP10963)
Product NameMouse IgG1 Fc Protein (LTP10963) Catalog NumberLTP10963 Quantity100ug Price $ 136 In stock BackgroundRecombinant murine Fc fragment contains the hinge region, CH2, and CH3 region of the mouse IgG1 isotype. IgG1 is most abundant in...
$136.00... more info
Mouse IgG2C Protein (LTP10049)
Product NameMouse IgG2C Protein (LTP10049) Catalog NumberLTP10049 Quantity100ug Price $ 136 In stock BackgroundMouse IgG2c is a subclass of mouse antibody IgG, it can bind Fc?RIV with high affinity and the Fc loop residues of mouse IgG2c...
$150.00... more info
Human IgG1 Fc Protein (LTP10956)
Product NameHuman IgG1 Fc Protein (LTP10956) Catalog NumberLTP10956 Quantity100ug Price $ 113 In stock BackgroundIgG1 is most abundant in serum among the four IgG subclasses (IgG1, 2, 3 and 4) and binds to Fc receptors (Fc?R) on phagocytic...
Displaying 1 to 10 (of 1152 Products)
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