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amanitin

" in MedChemExpress (MCE) Product Catalog:

By Targets:	ADC Antibody (1) ADC Linker (1) ADC Payload (5) DNA/RNA Synthesis (6) Drug-Linker Conjugates for ADC (4)
By Research Areas:	Cancer (8)
Click Chemistry:	Azide (1)

Inhibitors & Agonists

Peptides

Inhibitory Antibodies

Natural
Products

Click Chemistry

Cat. No.	Product Name	Target	Research Areas	Chemical Structure

HY-19610

α-Amanitin 45+ Cited Publications α-Amatoxin	DNA/RNA Synthesis ADC Payload	Cancer
α-Amanitin is the principal toxin of several deadly poisonous mushrooms, exerting its toxic function by inhibiting RNA-polymerase II.

HY-125586

β-Amanitin	DNA/RNA Synthesis ADC Payload	Cancer
β-Amanitin is a cyclic peptide toxin in the poisonous Amanita phalloides mushroom. β-Amanitin inhibits inhibits eukaryotic RNA polymerase II and III. β-Amanitin inhibits protein synthesis. β-Amanitin can be used as a cytotoxic component of antibody-drug conjugates (ADCs) .

HY-131081

γ-Amanitin	DNA/RNA Synthesis ADC Payload	Cancer
γ-Amanitin an ADC cytotoxin and isolated from the mushroom. γ-Amanitin inhibits RNA polymerase II and disrupts synthesis of mRNA. γ-Amanitin shows similar effects to α-Amanitin and β-Amanitin. γ-Amanitin competitively binds to monoclonal antibody (mAb), with an IC₅₀ of 163.1 ng/mL. γ-Amanitin is toxic to a variety of cells .

HY-131089

MC-VC-PABC-C6-α-Amanitin	DNA/RNA Synthesis Drug-Linker Conjugates for ADC	Cancer
MC-VC-PABC-C6-α-Amanitin is a Drug-Linker Conjugates for ADC, consisting of an anticancer toxin alpha-Amanitin (HY-19610) and a MC-VC-PABC-C6 linker. Among them, alpha-Amanitin is a potent inhibitor of RNA polymerase IIα.

HY-126683

Mal-C6-α-Amanitin 1 Publications Verification	Drug-Linker Conjugates for ADC	Cancer
Mal-C6-α-Amanitin is a agent-linker conjugate for ADC with potent antitumor activity by using α-Amanitin (an RNA polymerase II inhibitor), linked via the ADC linker Mal-C6.

HY-148231

Dideoxy-amanitin	DNA/RNA Synthesis ADC Payload	Cancer
Dideoxy-amanitin (compound 2), an α-Amanitin (HY-19610) derivative, is a potent and selective RNA polymerase II allosteric inhibitor with an IC₅₀ value of 74.2 nM .

HY-151829

Fmoc-L-Asn(EDA-N3)-OH	ADC Linker	Others
Fmoc-L-Asn(EDA-N3)-OH is a click chemistry reagent containing an azide group. This building block is reported in literature for the modification of Amanitin via Click Chemistry. Alpha-Amanitin is the deadliest member of the amatoxin peptide family produced by the death-cap mushroom A. phalloides. It is an orally available, rigid, bicyclic octapeptide and one of the most lethal known natural products (LD50 = 50-100 μg/kg) acting as highly selective allosteric inhibitor of the RNA polymerase II . It contains an azide group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing alkyne groups. It can also undergo ring strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing DBCO or BCN groups.

HY-131083

ε-Amanitin	DNA/RNA Synthesis ADC Payload	Cancer
ε-Amanitin, a cyclic peptide isolated from a variety of mushroom species, potently binds to and inhibits the activity of RNA polymerase II .

HY-P991294

MGTA-117 Antibody	ADC Antibody	Cancer
MGTA-117 is a humanized monoclonal antibody targeting CD117. MGTA-117 can be used for synthesis of antibody-drug conjugate (ADC), utilizing an amanitin payload. MGTA-117 has potent anti-tumor activity and increases survival in three acute myeloid leukemia (AML) xenograft hNSG mice models (Kasumi-1, AML PDX 1 and AML PDX 2). MGTA-117 enables hematopoietic stem cell transplantation (HSCT) preprocessing in AML, myelodysplasia with excess blasts (MDS-EB) and gene therapy .

HY-182806

*Demethylation-desulfuration-α-Amanitin-OH-PAB-Ala-Val-CO-C2-mal*	Drug-Linker Conjugates for ADC	Others
Demethylation-desulfuration-α-Amanitin-OH-PAB-Ala-Val-CO-C2-mal is a conjugate of an ADC drug toxin molecule and a linker, containing a degradable PEG linker and the toxin molecule M-4, which is a cyclic peptide derived from α-Amanitin (HY-19610) .

HY-182805

*6-Dehydroxy-demethylation-α-Amanitin-OH-PAB-Ala-Val-CO-C2-mal*	Drug-Linker Conjugates for ADC	Others
6-Dehydroxy-demethylation-α-Amanitin-OH-PAB-Ala-Val-CO-C2-mal is a conjugate of the ADC drug toxin molecule and the linker, containing a degradable PEG linker and the toxin molecule I-4, a bicyclic peptide derived from amatoxin .

Cat. No.	Product Name	Target	Research Area

HY-125586

β-Amanitin	DNA/RNA Synthesis ADC Payload	Cancer
β-Amanitin is a cyclic peptide toxin in the poisonous Amanita phalloides mushroom. β-Amanitin inhibits inhibits eukaryotic RNA polymerase II and III. β-Amanitin inhibits protein synthesis. β-Amanitin can be used as a cytotoxic component of antibody-drug conjugates (ADCs) .

Cat. No.	Product Name	Target	Research Area	Image

HY-P991294

MGTA-117 Antibody	ADC Antibody	Cancer
MGTA-117 is a humanized monoclonal antibody targeting CD117. MGTA-117 can be used for synthesis of antibody-drug conjugate (ADC), utilizing an amanitin payload. MGTA-117 has potent anti-tumor activity and increases survival in three acute myeloid leukemia (AML) xenograft hNSG mice models (Kasumi-1, AML PDX 1 and AML PDX 2). MGTA-117 enables hematopoietic stem cell transplantation (HSCT) preprocessing in AML, myelodysplasia with excess blasts (MDS-EB) and gene therapy .

γ-Amanitin	Structural Classification Alkaloids Microorganisms Classification of Application Fields Other Alkaloids Disease Research Fields Source Classification Cancer	DNA/RNA Synthesis ADC Payload
γ-Amanitin an ADC cytotoxin and isolated from the mushroom. γ-Amanitin inhibits RNA polymerase II and disrupts synthesis of mRNA. γ-Amanitin shows similar effects to α-Amanitin and β-Amanitin. γ-Amanitin competitively binds to monoclonal antibody (mAb), with an IC₅₀ of 163.1 ng/mL. γ-Amanitin is toxic to a variety of cells .

ε-Amanitin	Structural Classification Natural Products Monophenols Microorganisms Classification of Application Fields Phenols Disease Research Fields Source Classification Cancer	DNA/RNA Synthesis ADC Payload
ε-Amanitin, a cyclic peptide isolated from a variety of mushroom species, potently binds to and inhibits the activity of RNA polymerase II .

Cat. No.	Product Name		Classification

HY-151829

Fmoc-L-Asn(EDA-N3)-OH		Azide
Fmoc-L-Asn(EDA-N3)-OH is a click chemistry reagent containing an azide group. This building block is reported in literature for the modification of Amanitin via Click Chemistry. Alpha-Amanitin is the deadliest member of the amatoxin peptide family produced by the death-cap mushroom A. phalloides. It is an orally available, rigid, bicyclic octapeptide and one of the most lethal known natural products (LD50 = 50-100 μg/kg) acting as highly selective allosteric inhibitor of the RNA polymerase II . It contains an azide group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing alkyne groups. It can also undergo ring strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing DBCO or BCN groups.

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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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