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SIINFEKL

" in MedChemExpress (MCE) Product Catalog:

By Targets:	Biochemical Assay Reagents (2) JNK (2) MHC (6) p38 MAPK (2)
By Research Areas:	Inflammation/Immunology (8)

Inhibitors & Agonists

Peptides

Recombinant Proteins

Cat. No.	Product Name	Target	Research Areas	Chemical Structure

HY-P1489

OVA Peptide(257-264) 10+ Cited Publications	MHC	Inflammation/Immunology
OVA Peptide(257-264) is a class I (Kb)-restricted peptide epitope of OVA, an octameric peptide can be from ovalbumin presented by the class I MHC molecule, H-2Kb.

HY-P1489A

OVA Peptide(257-264) TFA 10+ Cited Publications	MHC	Inflammation/Immunology
OVA Peptide(257-264) TFA is a class I (Kb)-restricted peptide epitope of OVA, an octameric peptide can be from ovalbumin presented by the class I MHC molecule, H-2Kb.

HY-P5411

OVA-T4 Peptide SIITFEKL, OVA (257-264) Variant	MHC	Others
OVA-T4 Peptide (SIITFEKL, OVA (257-264) Variant) is a low-affinity variant of OVA (257-264) (SIINFEKL). OVA-T4 Peptide has similar binding to H-2Kb MHC class I molecules as OVA (257-264), but has a much lower affinity for the OT-I TCR25 .

HY-P1771A

OVA G4 peptide TFA	Biochemical Assay Reagents	Inflammation/Immunology
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 .

HY-P2319A

OVA-E1 peptide TFA	p38 MAPK JNK	Inflammation/Immunology
OVA-E1 peptide TFA, is an antagonist variant of SIINFEKL [OVA (257-264). OVA-E1 peptide, activates the p38 and JNK cascades similarly in mutant and wild-type thymocytes .

HY-P5410

OVA-Q4 Peptide	MHC	Others
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).)

HY-P10582A

SIYNFEKL TFA	MHC	Inflammation/Immunology
SIYNFEKL TFA is a variant of major MHC class I-restricted epitope SIINFEKL. SIYNFEKL TFA is an antigenic peptide, that can stimulate specific T cells in experimental settings to study the competitive interaction between T cell. SIYNFEKL TFA exhibits low affinity for the OT-I T cell receptor (TCR), and can be used for detection of CD8+ T cells .

HY-P10581A

SIIVFEKL TFA	MHC	Inflammation/Immunology
SIIVFEKL TFA is a variant of the major MHC class I-restricted epitope SIINFEKL. SIIVFEKL TFA is an antigenic peptide, that can stimulate specific T cells in experimental settings to study the competitive interaction between T cells. SIIVFEKL TFA exhibits low affinity for the OT-I T cell receptor (TCR), and can be used for detection of CD8+ T cells .

HY-P1771

OVA G4 peptide	Biochemical Assay Reagents	Inflammation/Immunology
OVA G4 peptide 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 .

HY-P2319

OVA-E1 peptide	p38 MAPK JNK	Inflammation/Immunology
OVA-E1 peptide, is an antagonist variant of SIINFEKL [OVA (257-264). OVA-E1 peptide, activates the p38 and JNK cascades similarly in mutant and wild-type thymocytes .

Cat. No.	Product Name	Target	Research Area

HY-P1489

OVA Peptide(257-264) 10+ Cited Publications	MHC	Inflammation/Immunology
OVA Peptide(257-264) is a class I (Kb)-restricted peptide epitope of OVA, an octameric peptide can be from ovalbumin presented by the class I MHC molecule, H-2Kb.

HY-P1489A

OVA Peptide(257-264) TFA 10+ Cited Publications	MHC	Inflammation/Immunology
OVA Peptide(257-264) TFA is a class I (Kb)-restricted peptide epitope of OVA, an octameric peptide can be from ovalbumin presented by the class I MHC molecule, H-2Kb.

HY-P5411

OVA-T4 Peptide SIITFEKL, OVA (257-264) Variant	MHC	Others
OVA-T4 Peptide (SIITFEKL, OVA (257-264) Variant) is a low-affinity variant of OVA (257-264) (SIINFEKL). OVA-T4 Peptide has similar binding to H-2Kb MHC class I molecules as OVA (257-264), but has a much lower affinity for the OT-I TCR25 .

HY-P1771A

OVA G4 peptide TFA	Biochemical Assay Reagents	Inflammation/Immunology
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 .

HY-P2319A

OVA-E1 peptide TFA	p38 MAPK JNK	Inflammation/Immunology
OVA-E1 peptide TFA, is an antagonist variant of SIINFEKL [OVA (257-264). OVA-E1 peptide, activates the p38 and JNK cascades similarly in mutant and wild-type thymocytes .

HY-P5410

OVA-Q4 Peptide	MHC	Others
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).)

HY-P5412

LLO (190-201) Listeriolysin O 190 peptide	Peptides	Others
LLO (190-201) (Listeriolysin O 190 peptide) is a biological active peptide. (This peptide is a major histocompatibility complex class II (MHC-II)-restricted peptide, LLO190 (NEKYAQAYPNVS), from the listeriolysin O protein of Listeria monocytogenes, which generates an LLO190-specific Th response. This peptide subsequently challenge recombinant L. monocytogenes expressing the MHC-I-restricted epitope of ovalbumin (Ova257, SIINFEKL).)

HY-P1489F

FAM-OVA (257-264)	Peptides	Others
FAM-OVA (257-264) is a biological active peptide. (FAM labeled HY-P1489)

HY-P10582A

SIYNFEKL TFA	MHC	Inflammation/Immunology
SIYNFEKL TFA is a variant of major MHC class I-restricted epitope SIINFEKL. SIYNFEKL TFA is an antigenic peptide, that can stimulate specific T cells in experimental settings to study the competitive interaction between T cell. SIYNFEKL TFA exhibits low affinity for the OT-I T cell receptor (TCR), and can be used for detection of CD8+ T cells .

HY-P10581A

SIIVFEKL TFA	MHC	Inflammation/Immunology
SIIVFEKL TFA is a variant of the major MHC class I-restricted epitope SIINFEKL. SIIVFEKL TFA is an antigenic peptide, that can stimulate specific T cells in experimental settings to study the competitive interaction between T cells. SIIVFEKL TFA exhibits low affinity for the OT-I T cell receptor (TCR), and can be used for detection of CD8+ T cells .

HY-P1771

OVA G4 peptide	Biochemical Assay Reagents	Inflammation/Immunology
OVA G4 peptide 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 .

HY-P2319

OVA-E1 peptide	p38 MAPK JNK	Inflammation/Immunology
OVA-E1 peptide, is an antagonist variant of SIINFEKL [OVA (257-264). OVA-E1 peptide, activates the p38 and JNK cascades similarly in mutant and wild-type thymocytes .

HY-P5408

OVA-Q4H7 Peptide SIIQFEHL, OVA (257-264) Variant	Peptides	Others
OVA-Q4H7 Peptide (SIIQFEHL, OVA (257-264) Variant) is a biological active peptide. (Q4H7 Peptide (SIIQFEHL) is a variant of the agonist ovalbumin (OVA) peptide (257-264), SIINFEKL, the strongest positive selecting ligand.)

Cat. No.	Compare	Product Name	Species	Source	Image

HY-P703712

	*H-2K(b)&B2M&OVA (SIINFEKL) Monomer Protein, Mouse (Biotinylated, HEK293, His-Avi)* H-2K; OVA; MHC; H2-K1	Mouse	HEK293

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BODIPY 493/503 purchased from MedChemExpress. Usage Cited in: Nat Commun. 2025 Feb 1;16(1):1241. [Abstract]

MedchemExpress Validation 01

Western blot analysis of extracts from THP-1(lane 2(20μg), Jurkat (lane 3(20μg) and NIH3T3(lane 4(20μg) using FOXO1A (HY-P80132) Rabbit mAb. Proteins were transferred to a PVDF membrane and blocked with 5% non-fat milk in TBST for 2 hour at room temperature. The primary antibody (1/1000) and Loading control antibody (Beta Actin, HY-P80438, 1/10000) was used in 5% non-fat milk in TBST at 4°C overnight. Goat Anti-Mouse/Rabbit IgG-HRP Secondary Antibody (1/10000) was used for 1 hour at room temperature. Western blot analysis of extracts from THP-1(lane 2(20μg), Jurkat (lane 3(20μg) and NIH3T3(lane 4(20μg) using FOXO1A (HY-P80132) Rabbit mAb. Proteins were transferred to a PVDF membrane and blocked with 5% non-fat milk in TBST for 2 hour at room temperature. The primary antibody (1/1000) and Loading control antibody (Beta Actin, HY-P80438, 1/10000) was used in 5% non-fat milk in TBST at 4°C overnight. Goat Anti-Mouse/Rabbit IgG-HRP Secondary Antibody (1/10000) was used for 1 hour at room temperature. Western blot analysis of extracts from THP-1(lane 2(20μg), Jurkat (lane 3(20μg) and NIH3T3(lane 4(20μg) using FOXO1A (HY-P80132) Rabbit mAb. Proteins were transferred to a PVDF membrane and blocked with 5% non-fat milk in TBST for 2 hour at room temperature. The primary antibody (1/1000) and Loading control antibody (Beta Actin, HY-P80438, 1/10000) was used in 5% non-fat milk in TBST at 4°C overnight. Goat Anti-Mouse/Rabbit IgG-HRP Secondary Antibody (1/10000) was used for 1 hour at room temperature.

BODIPY 493/503 purchased from MedChemExpress. Usage Cited in: Nat Commun. 2025 Feb 1;16(1):1241. [Abstract]

MedchemExpress Validation 01

MedchemExpress Validation 03

Western blot analysis of extracts from THP-1(lane 2(20μg), Jurkat (lane 3(20μg) and NIH3T3(lane 4(20μg) using FOXO1A (HY-P80132) Rabbit mAb. Proteins were transferred

MedchemExpress Validation 04

MedchemExpress Validation

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