TopoGEN 公司是一家专门为拓扑酶研究提供试剂和试剂盒。试剂盒可以有效地分析拓扑异构酶 I ， II 和旋转酶，分析细胞内的拓扑抑制以及描绘拓扑异构酶抑制剂的特性。另外公司还提供 DNa c底物，拓扑抑制剂和抗体等。
部分产品报价：
| 厂家 | 货号 | 品名 | 规格 | RMB报价 |
| Topogen | TG1001-1 | Topo II Assay Kit | 100 assays | ¥4,186.00 |
| Topogen | TG1001-2 | Topo II Assay Kit | 250 assays | ¥5,586.00 |
| Topogen | TG1003 | DNA Gyrase Assay Kit | 100 assays | ¥4,606.00 |
| Topogen | TG1004-1 | Tdp1 Assay Kit | 100 assays | ¥4,186.00 |
| Topogen | TG1004-2 | Tdp1 Assay Kit | 250 assays | ¥5,586.00 |
| Topogen | TG1007-1 | E. Coli Topo IV Drug Screening Kit (plasmid based) | 100 assays | ¥4,466.00 |
| Topogen | TG1007-2 | E. Coli Topo IV Drug Screening Kit (plasmid based) | 250 assays | ¥5,866.00 |
| Topogen | TG1015-1 | Topo I Assay Kit | 100 assays | ¥3,906.00 |
| Topogen | TG1015-2 | Topo I Assay Kit | 250 assays | ¥5,306.00 |
| Topogen | TG1009-1 | Topo II Drug Screening Kit | 100 assays | ¥4,326.00 |
| Topogen | TG1009-2 | Topo II Drug Screening Kit | 250 assays | ¥5,726.00 |
| Topogen | TG1010-1 | SDS-K+ Precip. Kit | 100 assays | ¥4,466.00 |
| Topogen | TG1010-2 | SDS-K+ Precip. Kit | 250 assays | ¥5,866.00 |
| Topogen | TG1018-1 | Topo I Drug Screening Kit | 100 assays | ¥4,186.00 |
| Topogen | TG1018-2 | Topo I Drug Screening Kit | 250 assays | ¥5,586.00 |
| Topogen | TG1019-1 | Topo II Drug Screening Kit (kDNA Based) | 100 assays | ¥4,606.00 |
| Topogen | TG1019-2 | Topo II Drug Screening Kit (kDNA Based) | 250 assays | ¥6,006.00 |
| Topogen | TG1025 | DNA Intercalator/Unwinding Kit | 50 experiments | ¥5,586.00 |
| Topogen | TG2000G-1KIT | Purified E. coli DNA Gyrase and Relaxed DNA Assay Kit | 100 assays | ¥6,566.00 |
| Topogen | TG2000G-3KIT | Purified E. coli DNA Gyrase and Relaxed DNA Assay Kit | 500 assays | ¥12,586.00 |
| Topogen | TG2000G-5KIT | Purified E. coli DNA Gyrase and Relaxed DNA Assay Kit | 1000 assays | ¥19,586.00 |
| Topogen | TG2000G-7KIT | Purified E. coli DNA Gyrase and Relaxed DNA Assay Kit | 2000 assays | ¥27,986.00 |
| Topogen | TG1022 | Topo II In Vivo Link Kit | 200 assays | ¥6,566.00 |
| Topogen | TG1021 | Topo I In Vivo Link Kit | 200 assays | ¥5,586.00 |
| Topogen | TG1011-1 | In Vivo SDS-K+ Precipitation Kit | 100 assays | ¥4,186.00 |
| Topogen | TG1011-2 | In Vivo SDS-K+ Precipitation Kit | 250 assays | ¥5,306.00 |
| Topogen | TG1030 | Topo II Immunofluorescence Kit | >50 analyses | ¥5,586.00 |
| Topogen | TG1035 | Topo II Immunoprecipitation Kit | >50 analyses | ¥5,586.00 |
| Topogen | TG4040-1 | Topoisomerase Type I Nuclear Extraction/Assay Kit | 100 assays | ¥3,906.00 |
| Topogen | TG4050-1 | Topoisomerase Type IIa Nuclear Extraction/Assay Kit | 100 assays | ¥4,186.00 |
| Topogen | TG2001G-1KIT | Purified E. coli DNA Gyrase Drug Screening Kit | 100 assays | ¥6,986.00 |
| Topogen | TG2001G-3KIT | Purified E. coli DNA Gyrase Drug Screening Kit | 500 assays | ¥12,586.00 |
| Topogen | TG2001G-5KIT | Purified E. coli DNA Gyrase Drug Screening Kit | 1000 assays | ¥19,586.00 |
| Topogen | TG2001G-7KIT | Purified E. coli DNA Gyrase Drug Screening Kit | 2000 assays | ¥27,986.00 |
| Topogen | TG1008-1 | E. coli Topo IV Drug Screening Kit (kDNA based) | 100 assays | ¥4,886.00 |
| Topogen | TG1008-2 | E. coli Topo IV Drug Screening Kit (kDNA based) | 250 assays | ¥6,286.00 |