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guanine residue

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By Targets:	Antibiotic (1) Apoptosis (2) Bacterial (2) Biochemical Assay Reagents (1) DNA Alkylator/Crosslinker (4) DNA/RNA Synthesis (4) Nucleoside Antimetabolite/Analog (1) Ras (3) Reference Standards (1)
By Research Areas:	Cancer (8) Infection (2)

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Biochemical Assay Reagents

Peptides

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Targets Recommended: SOS1

Cat. No.	Product Name	Target	Research Areas	Chemical Structure

HY-W002585

O6-Benzylguanine 2 Publications Verification	DNA/RNA Synthesis Apoptosis	Cancer
O6-Benzylguanine, a guanine analog, is the DNA repair enzyme O6-alkylguanine-DNA alkyltransferase (MGMT/AGT) inhibitor. O6-Benzylguanine acts as an AGT substrate, which transfers its benzyl group to the AGT cysteine residue, thereby irreversibly inactivating AGT and preventing DNA repair. O6-Benzylguanine induces tumor cell apoptosis. Antineoplastic activity .

HY-13747

Semustine 1 Publications Verification	DNA Alkylator/Crosslinker DNA/RNA Synthesis	Cancer
Semustine is an orally active, blood-brain barrier permeable antitumor alkylating agent with a binding affinity of 1.53 × 10 ³ M ^-1 for guanine and thymine residues in bovine DNA. Semustine undergoes major groove-directed alkylation at guanine residues to form O6-chloroethylguanine and N1-O6-ethanoguanine adducts, and generates dG-dC interstrand crosslinks. Semustine induces partial B- to C-type transition of DNA, base stacking and helical structure distortion, mild dehydration, as well as partial DNA double-strand unwinding. Semustine can be used in research related to Lewis lung cancer, leukemia, Hodgkin's lymphoma, malignant melanoma, glioma, and diffuse large B-cell lymphoma .

HY-W013741

CME-carbodiimide	Biochemical Assay Reagents DNA Alkylator/Crosslinker DNA/RNA Synthesis	Others
CME-carbodiimide is a nucleic acid modification reagent. CME-carbodiimide reacts specifically with uracil and guanine residues of RNA, as well as guanine and thymine residues of denatured DNA; it does not react with native DNA. Modification of DNA by CME-carbodiimide inhibits phosphodiester bond cleavage or DNA hydrolysis mediated by pancreatic ribonuclease, snake venom phosphodiesterase and deoxyribonuclease .

HY-P1382A

Rac1 Inhibitor W56 TFA	Ras	Cancer
Rac1 Inhibitor W56 TFA is a peptide containing residues 45-60 of Rac1. Rac1 Inhibitor W56 TFA inhibits Rac1 interaction with guanine nucleotide exchange factors TrioN, GEF-H1, and Tiam .

HY-W002585R

O6-Benzylguanine (Standard)	Reference Standards DNA/RNA Synthesis Apoptosis	Cancer
O6-Benzylguanine, a guanine analog, is the DNA repair enzyme O6-alkylguanine-DNA alkyltransferase (MGMT/AGT) inhibitor. O6-Benzylguanine acts as an AGT substrate, which transfers its benzyl group to the AGT cysteine residue, thereby irreversibly inactivating AGT and preventing DNA repair. O6-Benzylguanine induces tumor cell apoptosis. Antineoplastic activity .

HY-P1382

Rac1 Inhibitor W56	Ras	Cancer
Rac1 Inhibitor W56 is a peptide containing residues 45-60 of Rac1. Rac1 Inhibitor W56 inhibits Rac1 interaction with guanine nucleotide exchange factors TrioN, GEF-H1, and Tiam .

HY-N15366

N-Acetoxy-IQ	DNA Alkylator/Crosslinker	Cancer
N-Acetoxy-IQ is a DNA alkylating agent that can covalently bind to DNA, especially guanine residues. N-Acetoxy-IQ exerts mutagenic and carcinogenic activities by forming DNA adducts. N-Acetoxy-IQ is promising for research of cancers .

HY-126160

CB10-277	Nucleoside Antimetabolite/Analog DNA Alkylator/Crosslinker	Cancer
CB10-277 is a Dacarbazine (HY-B0078) analog that mediates alkylation of guanine residues at the O ⁶ position in DNA and subsequently reduces ATase levels in lymphocytes and tumors. CB10-277 is useful in the study of metastatic malignant melanoma .

HY-129252

Prothracarcin	Antibiotic Bacterial	Infection Cancer
Prothracarcin is an antibiotic with antitumor activity that exerts its tumor cell toxicity by covalently binding to the C-2 amino group of guanine residues in the minor groove of DNA. Prothracarcin also shows antibacterial activity against Gram-positive bacteria and some Gram-negative bacteria such as Escherichia coli .

HY-P1383A

Rac1 Inhibitor F56, control peptide TFA	Ras	Others
Rac1 Inhibitor F56, control peptide TFA is a peptide containing residues 45-60 of Rac1. Rac1 Inhibitor F56, control peptide TFA contains a Trp ⁵⁶ to Phe ⁵⁶ mutation. Rac1 Inhibitor F56, control peptide TFA has no effect on Rac1 interaction with its guanine nucleotide exchange factors (GEFs) .

HY-175761

Riboswit-modulator-1	Bacterial	Infection
Riboswit-modulator-1 (Compound A1), a covalent RNA ligand, is a bacterial Flavin mononucleotide (FMN) riboswitch modulator. Riboswit-modulator-1 modifies unpaired guanine residues (G11 and G62) proximal to the FMN-binding site through a proximity-driven mechanism, and interferes with its conformational transitions. Riboswit-modulator-1 acts as a negative antagonist by eliciting the opposite effect of the natural effector molecule .

Cat. No.	Product Name	Type

HY-W013741

CME-carbodiimide	Biochemical Assay Reagents
CME-carbodiimide is a nucleic acid modification reagent. CME-carbodiimide reacts specifically with uracil and guanine residues of RNA, as well as guanine and thymine residues of denatured DNA; it does not react with native DNA. Modification of DNA by CME-carbodiimide inhibits phosphodiester bond cleavage or DNA hydrolysis mediated by pancreatic ribonuclease, snake venom phosphodiesterase and deoxyribonuclease .

CME-carbodiimide

Biochemical Assay Reagents

CME-carbodiimide is a nucleic acid modification reagent. CME-carbodiimide reacts specifically with uracil and guanine residues of RNA, as well as guanine and thymine residues of denatured DNA; it does not react with native DNA. Modification of DNA by CME-carbodiimide inhibits phosphodiester bond cleavage or DNA hydrolysis mediated by pancreatic ribonuclease, snake venom phosphodiesterase and deoxyribonuclease .

Cat. No.	Product Name	Target	Research Area

HY-P1382A

Rac1 Inhibitor W56 TFA	Ras	Cancer
Rac1 Inhibitor W56 TFA is a peptide containing residues 45-60 of Rac1. Rac1 Inhibitor W56 TFA inhibits Rac1 interaction with guanine nucleotide exchange factors TrioN, GEF-H1, and Tiam .

HY-P1382

Rac1 Inhibitor W56	Ras	Cancer
Rac1 Inhibitor W56 is a peptide containing residues 45-60 of Rac1. Rac1 Inhibitor W56 inhibits Rac1 interaction with guanine nucleotide exchange factors TrioN, GEF-H1, and Tiam .

HY-P1383A

Rac1 Inhibitor F56, control peptide TFA	Ras	Others
Rac1 Inhibitor F56, control peptide TFA is a peptide containing residues 45-60 of Rac1. Rac1 Inhibitor F56, control peptide TFA contains a Trp ⁵⁶ to Phe ⁵⁶ mutation. Rac1 Inhibitor F56, control peptide TFA has no effect on Rac1 interaction with its guanine nucleotide exchange factors (GEFs) .

HY-P1383

Rac1 Inhibitor F56, control peptide	Peptides	Others
Rac1 Inhibitor F56, control peptide is a peptide containing residues 45-60 of Rac1. Rac1 Inhibitor F56, control peptide contains a Trp ⁵⁶ to Phe ⁵⁶ mutation. Rac1 Inhibitor F56, control peptide has no effect on Rac1 interaction with its guanine nucleotide exchange factors (GEFs) .

Cat. No.	Product Name	Category	Target	Chemical Structure

HY-N15366

N-Acetoxy-IQ	Alkaloids Animals Quinoline Alkaloids Source Classification	DNA Alkylator/Crosslinker
N-Acetoxy-IQ is a DNA alkylating agent that can covalently bind to DNA, especially guanine residues. N-Acetoxy-IQ exerts mutagenic and carcinogenic activities by forming DNA adducts. N-Acetoxy-IQ is promising for research of cancers .

HY-129252

Prothracarcin	Alkaloids Microorganisms Pyrrole Alkaloids Source Classification	Antibiotic Bacterial
Prothracarcin is an antibiotic with antitumor activity that exerts its tumor cell toxicity by covalently binding to the C-2 amino group of guanine residues in the minor groove of DNA. Prothracarcin also shows antibacterial activity against Gram-positive bacteria and some Gram-negative bacteria such as Escherichia coli .

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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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guanine residue

Inhibitors & Agonists

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