Peptide Epitopes

Gp100 (25-33), human (Hgp100 (25-33)) is the amino acids 25-33 fragment of the human melanoma antigen. Gp100 (25-33), human is a 9-amino acid (AA) epitope restricted by MHC class I H-2D^b and recognized by the T cells. Gp100 (25-33), human has immunogenicity and induces specific T cells. Gp100 (25-33), human can be used for the cancer research, such as melanoma.

OVA peptide mainly exists in egg white, it is a class I (Kb)-restricted peptide epitope of ovalbumin presented by the class I MHC (major histocompatibility complex) molecule, H-2Kb (class I genes of the mouse MHC). OVA peptide has been widely studied in allergy research.

FLAG peptide TFA is the TFA salt form of FLAG peptide (HY-P0223). FLAG peptide TFA is a multifunctional fusion tag for the purification of recombinant proteins. FLAG peptide TFA maintances the natural folding of its fusing proteins. FLAG peptide TFA can be removed by enterokinase, and eluted under non-denaturing conditions.

α-Synuclein (61-95) (human) TFA is the hydrophobic core region of α-synuclein, and induces neuronal cell death. α-Synuclein (61-95) (human) TFA can be used for research of neurodegenerative diseases, including Alzheimer’s disease (AD) and Parkinson’s disease (PD).

3x DYKDDDDK Tag is a useful tool for investigating the function and localization of proteins whose antibodies (Abs) are not available. Often it is also used in a 3X FLAG format (3x DYKDDDDK Tag) for purifying difficult proteins that accumulate in low abundance .

Gliadin p31-43 is an undigested gliadin peptide. Gliadin p31-43 induces an innate immune response in the intestine and interferes with endocytic trafficking. Gliadin p31-43 can be used for celiac disease research.

STh, an Escherichia coli heat-stable toxin, is a 19 amino acid polypeptide encompassing three disulfide bridges. STh is an antigen of interest in the search for a broad coverage enterotoxigenic Escherichia coli (ETEC) vaccine.

OVA G4 peptide TFA is a variant of the agonist ovalbumin (OVA) peptide SIINFEKL (257-264). SIINFEKL is routinely used to stimulate ovalbumin-specific T cells and to test new vaccine adjuvants can form a stable hydrogel.

PLP (139-151) is amino acid residue 139 to 151 of myelin proteolipid protein (PLP) used to induce experimental autoimmune encephalomyelitis (EAE).

OVA (329-337) is a 9-aa core epitope (329–337) located in the C-terminal end of the OVA peptide.

LLO (91-99) (Listeriolysin O (91-99)) is an exotoxin and class I MHC-restricted T-cell epitope of listeriolysin (LLO). LLO (91-99) is processed by antigen-presenting cells, binds to MHC class I molecules and is presented to the cell surface. LLO (91-99) induces CTL responses and effectively eliminates Listeria from infected cells. LLO (91-99) can be used in the research of Listeria infections (e.g., listeriosis).

ALFA-tag is a small and stable α-helical structure composed of 15 amino acids. ALFA-tag is highly hydrophilic and can be placed at the N-terminus, C-terminus, or between two independently folded domains of the target protein without affecting the function of the protein. ALFA-tag is widely used as an epitope tag and is used for the detection and manipulation of proteins in living cells.

His11 is consists of a contiguous series of amino acid residues. His11 can be used as a tag peptide.

OVA-Q4 Peptide is a biological active peptide. (Q4 Peptide (SIIQFEKL) is a variant of the agonist ovalbumin (OVA) peptide (257-264), SIINFEKL. OVA Peptide is a class I (Kb)-restricted peptide epitope of ovalbumin presented by the class I MHC (major histocompatibility complex) molecule, H-2Kb (class I genes of the mouse MHC).)

Gp100 (25-33), mouse TFA sequence is found in residues 25 to 33 of the mouse self/tumor antigen glycoprotein (mgp100). Mgp100 is an enzyme involved in pigment synthesis, and the epitope fragment is expressed in both normal melanocytes and melanoma cells.

IRBP derived peptide, R16 is a biological active peptide. (R16 is an IRBP (Interphotoreceptor retinoid binding protein) derived peptide. Photoreceptor cell protein is capable of inducing an experimental autoimmune uveitis (EAU) in susceptible animal strains.)

Azido-PEG3-DYKDDDDK (azide-PEG3-FLAG) TFA is a multifunctional fusion tag for the purification of recombinant proteins. Azido-PEG3-DYKDDDDK TFA is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

S Tag Peptide is a 15 amino acid peptide derived from RNase A.

Peripheral Myelin Protein P2 (53-78), bovine is derived from bovine peripheral myelin P2 protein amino acid residues 53-78. Peripheral Myelin Protein P2 (53-78), bovine is a T cell epitope for the induction of experimental autoimmune neuritis (EAN) in Lewis rats.

CLIP (86-100) is amino acids 86 to 100 fragment of class II-associated invariant chain peptide (CLIP). CLIP is a small self-peptide and cleavage product of the invariant chain that resides in the HLA-II antigen binding groove and is believed to play a critical role in the assembly and transport of MHC class II alphabetaIi complexes through its interaction with the class II peptide-binding site.