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Pathways Recommended:	Cell Cycle/DNA Damage

Results for "

DNA gyrase subunit A

" in MedChemExpress (MCE) Product Catalog:

By Targets:	Antibiotic (5) Bacterial (6) Isotope-Labeled Compounds (1) Reference Standards (1) Topoisomerase (6)
By Research Areas:	Infection (7)

Inhibitors & Agonists

Natural
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Isotope-Labeled Compounds

Targets Recommended: DNA-PK DNA Glycosylase SF3B1 DNA Methyltransferase DNA Stain DNA Alkylator/Crosslinker DNA/RNA Synthesis

Cat. No.	Product Name	Target	Research Areas	Chemical Structure

HY-B0398

Nalidixic acid 2 Publications Verification	Bacterial Antibiotic Topoisomerase	Infection
Nalidixic acid, a quinolone antibiotic, is effective against both gram-positive and gram-negative bacteria. Nalidixic acid acts in a bacteriostatic manner in lower concentrations and is bactericidal in higher concentrations. Nalidixic acid inhibits a subunit of **DNA gyrase and topoisomerase IV** and reversibly blocks DNA replication in susceptible bacteria .

HY-B0398A

Nalidixic acid sodium salt 2 Publications Verification	Bacterial Antibiotic Topoisomerase	Infection
Nalidixic acid sodium salt, a quinolone antibiotic, is effective against both gram-positive and gram-negative bacteria. Nalidixic acid acts in a bacteriostatic manner in lower concentrations and is bactericidal in higher concentrations. Nalidixic acid inhibits a subunit of **DNA gyrase and topoisomerase IV** and reversibly blocks DNA replication in susceptible bacteria .

HY-16742B

Gepotidacin mesylate hydrate Maximum Cited Publications 12 Publications Verification	Antibiotic Bacterial Topoisomerase	Infection
Gepotidacin mesylate hydrate is an orally active triazaacenaphthylene antibiotic and bacterial type II topoisomerase inhibitor. Gepotidacin mesylate hydrate inhibits bacterial DNA replication by blocking topoisomerase enzymes. Gepotidacin mesylate hydrate selectively inhibits topoisomerase IV and the B subunit of DNA gyrase .

HY-123515

Clorobiocin		Infection
Clorobiocin is an antibacterial agent with an IC₅₀ of 0.21 μM against the B subunit of E. coli DNA gyrase. Clorobiocin targets the mLaC protein of Gram-negative bacteria. Clorobiocin potently inhibits bacterial DNA replication. Clorobiocin can be used in studies on Gram-negative bacterial infections, such as Acinetobacter baumannii and E. coli infections .

HY-B0398S

Nalidixic Acid-d5	Isotope-Labeled Compounds Bacterial Antibiotic Topoisomerase	Infection
Nalidixic Acid-d₅ is the deuterium labeled Nalidixic acid. Nalidixic acid, a quinolone antibiotic, is effective against both gram-positive and gram-negative bacteria. Nalidixic acid acts in a bacteriostatic manner in lower concentrations and is bactericidal in higher concentrations. Nalidixic acid inhibits a subunit of DNA gyrase and topoisomerase IV and reversibly blocks DNA replication in susceptible bacteria .

HY-B0398R

Nalidixic acid (Standard)	Reference Standards Bacterial Antibiotic Topoisomerase	Infection
Nalidixic acid (Standard) is the analytical standard of Nalidixic acid. This product is intended for research and analytical applications. Nalidixic acid, a quinolone antibiotic, is effective against both gram-positive and gram-negative bacteria. Nalidixic acid acts in a bacteriostatic manner in lower concentrations and is bactericidal in higher concentrations. Nalidixic acid inhibits a subunit of **DNA gyrase and topoisomerase IV** and reversibly blocks DNA replication in susceptible bacteria .

HY-107044

DK 507k	Bacterial Topoisomerase	Infection
DK 507k is an orally active 8-methoxyquinolone Antibacterial agent. DK 507k targets DNA gyrase subunit A (GyrA) and modulates the function of GyrA. DK 507k inhibits the growth of various Gram-positive and Gram-negative bacteria, including Pseudomonas aeruginosa and Methicillin (HY-121544)-resistant Staphylococcus aureus. DK 507k eliminates Penicillin-tolerant Streptococcus pneumoniae from the lungs of mice. DK 507k can be used in research related to sepsis and Streptococcus pneumoniae pneumonia .

Cat. No.	Product Name	Category	Target	Chemical Structure

HY-B0398

Nalidixic acid 2 Publications Verification	Infection Microorganisms Classification of Application Fields Antibiotics Resistance Selection Antibacterial Disease Research Disease Research Fields Other Antibiotics Source Classification	Bacterial Antibiotic Topoisomerase
Nalidixic acid, a quinolone antibiotic, is effective against both gram-positive and gram-negative bacteria. Nalidixic acid acts in a bacteriostatic manner in lower concentrations and is bactericidal in higher concentrations. Nalidixic acid inhibits a subunit of **DNA gyrase and topoisomerase IV** and reversibly blocks DNA replication in susceptible bacteria .

HY-B0398R

Nalidixic acid (Standard)	Structural Classification Microorganisms Antibiotics Resistance Selection Antibacterial Disease Research Other Antibiotics Source Classification	Reference Standards Bacterial Antibiotic Topoisomerase
Nalidixic acid (Standard) is the analytical standard of Nalidixic acid. This product is intended for research and analytical applications. Nalidixic acid, a quinolone antibiotic, is effective against both gram-positive and gram-negative bacteria. Nalidixic acid acts in a bacteriostatic manner in lower concentrations and is bactericidal in higher concentrations. Nalidixic acid inhibits a subunit of **DNA gyrase and topoisomerase IV** and reversibly blocks DNA replication in susceptible bacteria .

Cat. No.	Product Name	Chemical Structure

HY-B0398S

Nalidixic Acid-d5
Nalidixic Acid-d₅ is the deuterium labeled Nalidixic acid. Nalidixic acid, a quinolone antibiotic, is effective against both gram-positive and gram-negative bacteria. Nalidixic acid acts in a bacteriostatic manner in lower concentrations and is bactericidal in higher concentrations. Nalidixic acid inhibits a subunit of DNA gyrase and topoisomerase IV and reversibly blocks DNA replication in susceptible bacteria .

Nalidixic Acid-d5

Nalidixic Acid-d₅ is the deuterium labeled Nalidixic acid. Nalidixic acid, a quinolone antibiotic, is effective against both gram-positive and gram-negative bacteria. Nalidixic acid acts in a bacteriostatic manner in lower concentrations and is bactericidal in higher concentrations. Nalidixic acid inhibits a subunit of DNA gyrase and topoisomerase IV and reversibly blocks DNA replication in susceptible bacteria .

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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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DNA gyrase subunit A

Inhibitors & Agonists

NaturalProducts

Isotope-Labeled Compounds

Natural
Products