ciprofloxacin
A quinolone that is quinolin-4(1H)-one bearing cyclopropyl, carboxylic acid, fluoro and piperazin-1-yl substituents at positions 1, 3, 6 and 7, respectively.
Machine-generated and unreviewed. Identity, structure and cross-references come straight from ChEBI's and CARD's own data; no curator has signed off on this record yet.
Classification
fluoroquinolone antibioticARO:0000001
-
CHEBI:23765 -
CHEBI:26512 -
CHEBI:36709 -
CHEBI:46848 -
CHEBI:51454 - quinolone antibiotic
CHEBI:86324 - fluoroquinolone antibiotic
CHEBI:87211 - fluoroquinolone antibiotic
ARO:0000001
Chemical structure
| Molecular formula | C17H18FN3O3 |
|---|---|
| Charge | 0 |
| Average mass | 331.347 Da |
| Monoisotopic mass | 331.13322 Da |
| Source | ChEBI |
| InChIKey | MYSWGUAQZAJSOK-UHFFFAOYSA-N |
O=C(O)c1cn(C2CC2)c2cc(N3CCNCC3)c(F)cc2c1=O
InChI=1S/C17H18FN3O3/c18-13-7-11-14(8-15(13)20-5-3-19-4-6-20)21(10-1-2-10)9-12(16(11)22)17(23)24/h7-10,19H,1-6H2,(H,23,24)
Also called
- ciprofloxacine
- ciprofloxacino
- ciprofloxacinum
- 1-cyclopropyl-6-fluoro-4-oxo-7-(piperazin-1-yl)-1,4-dihydroquinoline-3-carboxylic acid
- 1-CYCLOPROPYL-6-FLUORO-4-OXO-7-PIPERAZIN-1-YL-1,4-DIHYDROQUINOLINE-3-CARBOXYLIC ACID
- 1-Cyclopropyl-6-fluoro-4-oxo-7-piperazin-1-yl-1,4-dihydro-quinoline-3-carboxylic acid
- 1-Cyclopropyl-6-fluoro-7-(4-methyl-piperazin-1-yl)-4-oxo-1,4-dihydro-quinoline-3-carboxylic acid
- 1-cyclopropyl-6-fluoro-1,4-dihydro-4-oxo-7-(1-piperazinyl)-3-quinolinecarboxylic acid
- 1-cyclopropyl-6-fluoro-4-oxo-7-piperazin-1-ylquinoline-3-carboxylic acid
- 1-cyclopropyl-6-fluoro-7-hexahydro-1-pyrazinyl-4-oxo-1,4-dihydro-3-quinolinecarboxylic acid
- Ciprofloxacin
- CIP
- Cipro
- Ciprobay
- Ciproxan
Cross-references
- ciprofloxacin
ARO:0000036 - cas:85721-33-1
- hmdb:HMDB0014677
- kegg.compound:C05349
- lincs.smallmolecule:LSM-5226
- pdb-ccd:CPF
- reaxys:3568352
- vsdb:1763
- chembl:CHEMBL8
- pubchem.compound:2764
Drug registries
Patents and articles
Activity roles
- antimicrobial agent
CHEBI:33281 - antibacterial drug
CHEBI:36047
Source concepts
| Source | Native ID | Label | Minted CURIE | Version |
|---|---|---|---|---|
| ARO | ARO:0000036 |
ciprofloxacin | antibioticmech:aro-29d35653c5 |
2026-08-30 |
| CHEBI | CHEBI:100241 |
ciprofloxacin | antibioticmech:chebi-8eedbf19c6 |
2026-08-30 |
Molecular targets
fluoroquinolone sensitive gyrA PROTEIN DIRECT_BINDING_TARGET
Fluoroquinolone sensitive parC PROTEIN DIRECT_BINDING_TARGET
fluoroquinolone sensitive gyrB PROTEIN DIRECT_BINDING_TARGET
DNA topoisomerase 4 subunit A [V210L]/B PROTEIN_COMPLEX MEASURED_TARGET_ASSOCIATION
Bacillus subtilis NCBITaxon:1423
| Type | Reported value | Assay | BindingDB IDs | Reference |
|---|---|---|---|---|
| IC50 | 1700 nM | DNA Topoisomerase IV Assay |
RSID 39229assay 2532_2monomer 21690 |
PMID:17074800 |
| Protein | Gene | Organism | Entry |
|---|---|---|---|
DNA topoisomerase 4 subunit A UniProtKB:Q45066 |
— | Bacillus subtilis NCBITaxon:1423 |
REVIEWED |
DNA topoisomerase 4 subunit B UniProtKB:Q59192 |
— | Bacillus subtilis NCBITaxon:1423 |
REVIEWED |
Mechanism summary
- Mode of action
- NUCLEIC_ACID_SYNTHESIS_INHIBITION microbial target
- Clinical status
- APPROVED
Activity spectrum
| Organism | Activity | MIC | Disk diffusion | Assay | Strain | Sample/genome | Evidence |
|---|---|---|---|---|---|---|---|
| Mycobacterium tuberculosis complex | RESISTANT | — | — | CRyPTIC DST; CLIRES2020; liquid media; MGIT; MGIT960 | — |
3 source isolates 3 measurements |
EvidencePage data (JSON.gz) |
| Mycobacterium tuberculosis complex | SUSCEPTIBLE | — | — | CRyPTIC DST; CLIRES2020; liquid media; MGIT; MGIT960 | — |
8 source isolates 8 measurements |
EvidencePage data (JSON.gz) |
| Mycobacterium tuberculosis complex | SUSCEPTIBLE | — | — | CRyPTIC DST; CLIRES2020; not specified | — |
2 source isolates 2 measurements |
EvidencePage data (JSON.gz) |
| Mycobacterium tuberculosis complex | RESISTANT | — | — | CRyPTIC DST; CLIRES2020; solid media | — |
40 source isolates 40 measurements |
EvidencePage data (JSON.gz) |
| Mycobacterium tuberculosis complex | SUSCEPTIBLE | — | — | CRyPTIC DST; CLIRES2020; solid media | — |
265 source isolates 265 measurements |
EvidencePage data (JSON.gz) |
| Mycobacterium tuberculosis complex | RESISTANT | — | — | CRyPTIC DST; CLIRES2023; liquid media; MGIT; MGIT960 | — |
1 source isolates 1 measurements |
EvidencePage data (JSON.gz) |
| Mycobacterium tuberculosis complex | SUSCEPTIBLE | — | — | CRyPTIC DST; CLIRES2023; liquid media; MGIT; MGIT960 | — |
1 source isolates 1 measurements |
EvidencePage data (JSON.gz) |
| Mycobacterium tuberculosis complex | RESISTANT | — | — | CRyPTIC DST; CLIRES2023; solid media | — |
5 source isolates 5 measurements |
EvidencePage data (JSON.gz) |
| Mycobacterium tuberculosis complex | SUSCEPTIBLE | — | — | CRyPTIC DST; CLIRES2023; solid media | — |
23 source isolates 23 measurements |
EvidencePage data (JSON.gz) |
| Mycobacterium tuberculosis complex | RESISTANT | — | — | CRyPTIC DST; KMMYKROBE2025; not specified | — |
1 source isolates 1 measurements |
EvidencePage data (JSON.gz) |
| Mycobacterium tuberculosis complex | SUSCEPTIBLE | — | — | CRyPTIC DST; KMMYKROBE2025; not specified | — |
3 source isolates 3 measurements |
EvidencePage data (JSON.gz) |
| Mycobacterium tuberculosis complex | RESISTANT | — | — | CRyPTIC DST; KMVALIDATION2025; not specified | — |
42 source isolates 42 measurements |
EvidencePage data (JSON.gz) |
| Mycobacterium tuberculosis complex | SUSCEPTIBLE | — | — | CRyPTIC DST; KMVALIDATION2025; not specified | — |
50 source isolates 50 measurements |
EvidencePage data (JSON.gz) |
| Mycobacterium tuberculosis complex | RESISTANT | — | — | CRyPTIC DST; LID2015; liquid media; MGIT; MGIT960; critical concentration WHO mg/L | — |
23 source isolates 23 measurements |
EvidencePage data (JSON.gz) |
| Mycobacterium tuberculosis complex | SUSCEPTIBLE | — | — | CRyPTIC DST; LID2015; liquid media; MGIT; MGIT960; critical concentration WHO mg/L | — |
286 source isolates 286 measurements |
EvidencePage data (JSON.gz) |
| Mycobacterium tuberculosis complex | RESISTANT | — | — | CRyPTIC DST; NEJM2018; liquid media; MGIT; MGIT960 | — |
54 source isolates 54 measurements |
EvidencePage data (JSON.gz) |
| Mycobacterium tuberculosis complex | SUSCEPTIBLE | — | — | CRyPTIC DST; NEJM2018; liquid media; MGIT; MGIT960 | — |
239 source isolates 239 measurements |
EvidencePage data (JSON.gz) |
| Mycobacterium tuberculosis complex | SUSCEPTIBLE | — | — | CRyPTIC DST; SEQTREAT2020; liquid media; MGIT; BACTEC460 | — |
1 source isolates 1 measurements |
EvidencePage data (JSON.gz) |
| Mycobacterium tuberculosis complex | RESISTANT | — | — | CRyPTIC DST; SEQTREAT2020; liquid media; microdilution plate; MYCOTB; critical concentration 1.0 mg/L | — |
2 source isolates 2 measurements |
EvidencePage data (JSON.gz) |
| Mycobacterium tuberculosis complex | SUSCEPTIBLE | — | — | CRyPTIC DST; SEQTREAT2020; liquid media; microdilution plate; MYCOTB; critical concentration 1.0 mg/L | — |
14 source isolates 14 measurements |
EvidencePage data (JSON.gz) |
| Mycobacterium tuberculosis complex | — | — | — | CRyPTIC DST; SEQTREAT2020; liquid media; microdilution plate; MYCOTB; critical concentration 1.0 mg/L | — |
447 source isolates 447 measurements |
EvidencePage data (JSON.gz) |
| Mycobacterium tuberculosis complex | RESISTANT | — | — | CRyPTIC DST; SEQTREAT2020; solid media; middlebrook; 7H10; critical concentration 2.0 mg/L | — |
4 source isolates 4 measurements |
EvidencePage data (JSON.gz) |
| Mycobacterium tuberculosis complex | SUSCEPTIBLE | — | — | CRyPTIC DST; SEQTREAT2020; solid media; middlebrook; 7H10; critical concentration 2.0 mg/L | — |
1 source isolates 1 measurements |
EvidencePage data (JSON.gz) |
| Escherichia coli NCBITaxon:562 | — | >8.0 mg/L | — | Broth microdilution ciprofloxacin MIC; modal MIC reported; interpreted using CLSI 2025 M100 S35. | 0349 |
BioSample SAMN11953777 |
EvidencePage data (JSON.gz) |
| Neisseria gonorrhoeae NCBITaxon:485 | — | 32.0 mg/L | — | CLSI M07 agar dilution ciprofloxacin MIC; agar dilution MIC reported and Etest used for verification; interpreted using CLSI M100. | 964 | — | EvidencePage data (JSON.gz) |
| Neisseria gonorrhoeae NCBITaxon:485 | — | 8.0 mg/L | — | CLSI M07 agar dilution ciprofloxacin MIC; agar dilution MIC reported and Etest used for verification; interpreted using CLSI M100. | 971 | — | EvidencePage data (JSON.gz) |
| Neisseria gonorrhoeae NCBITaxon:485 | — | 32.0 mg/L | — | CLSI M07 agar dilution ciprofloxacin MIC; agar dilution MIC reported and Etest used for verification; interpreted using CLSI M100. | 974 | — | EvidencePage data (JSON.gz) |
| Neisseria gonorrhoeae NCBITaxon:485 | — | 32.0 mg/L | — | CLSI M07 agar dilution ciprofloxacin MIC; agar dilution MIC reported and Etest used for verification; interpreted using CLSI M100. | 975 | — | EvidencePage data (JSON.gz) |
| Neisseria gonorrhoeae NCBITaxon:485 | — | 32.0 mg/L | — | CLSI M07 agar dilution ciprofloxacin MIC; agar dilution MIC reported and Etest used for verification; interpreted using CLSI M100. | 976 | — | EvidencePage data (JSON.gz) |
| Klebsiella pneumoniae NCBITaxon:573 | — | >8.0 mg/L | — | Broth microdilution ciprofloxacin MIC; modal MIC reported; interpreted using CLSI 2025 M100 S35. | 0497 |
BioSample SAMN11953783 |
EvidencePage data (JSON.gz) |
| Acinetobacter baumannii NCBITaxon:470 | — | >8.0 mg/L | — | Broth microdilution ciprofloxacin MIC; modal MIC reported; interpreted using CLSI 2024 M100 S34. | 0297 |
BioSample SAMN04901687 |
EvidencePage data (JSON.gz) |
| Escherichia coli NCBITaxon:562 | — | >8.0 mg/L | — | Broth microdilution ciprofloxacin MIC; modal MIC reported; interpreted using CLSI 2025 M100 S35. | 0346 |
BioSample SAMN11953774 |
EvidencePage data (JSON.gz) |
| Neisseria gonorrhoeae NCBITaxon:485 | — | 2.0 mg/L | — | Agar dilution ciprofloxacin MIC; interpreted using CLSI 2026 M100 Ed36. | 0963 | — | EvidencePage data (JSON.gz) |
| Escherichia coli NCBITaxon:562 | — | >8.0 mg/L | — | Broth microdilution ciprofloxacin MIC; modal MIC reported; interpreted using CLSI 2025 M100 S35. | 1305 |
BioSample SAMN46941623 |
EvidencePage data (JSON.gz) |
| Pseudomonas aeruginosa NCBITaxon:287 | — | >8.0 mg/L | — | Broth microdilution ciprofloxacin MIC; modal MIC reported; interpreted using CLSI 2025 M100 S35. | 1155 |
BioSample SAMN34111341 |
EvidencePage data (JSON.gz) |
| Pseudomonas aeruginosa NCBITaxon:287 | — | >8.0 mg/L | — | Broth microdilution ciprofloxacin MIC; modal MIC reported; interpreted using CLSI 2025 M100 S35. | 1156 |
BioSample SAMN34111342 |
EvidencePage data (JSON.gz) |
| Pseudomonas aeruginosa NCBITaxon:287 | — | >8.0 mg/L | — | Broth microdilution ciprofloxacin MIC; modal MIC reported; interpreted using CLSI 2025 M100 S35. | 1157 |
BioSample SAMN34111343 |
EvidencePage data (JSON.gz) |
| Pseudomonas aeruginosa NCBITaxon:287 | — | >8.0 mg/L | — | Broth microdilution ciprofloxacin MIC; modal MIC reported; interpreted using CLSI 2025 M100 S35. | 1159 |
BioSample SAMN34111345 |
EvidencePage data (JSON.gz) |
| Pseudomonas aeruginosa NCBITaxon:287 | — | >8.0 mg/L | — | Broth microdilution ciprofloxacin MIC; modal MIC reported; interpreted using CLSI 2025 M100 S35. | 1161 |
BioSample SAMN34111347 |
EvidencePage data (JSON.gz) |
| Neisseria gonorrhoeae NCBITaxon:485 | — | 16.0 mg/L | — | Broth microdilution ciprofloxacin MIC; modal MIC reported; interpreted using CLSI 2026 M100 Ed36. | 1280 |
BioSample SAMN35332250 |
EvidencePage data (JSON.gz) |
| Neisseria gonorrhoeae NCBITaxon:485 | — | 16.0 mg/L | — | Broth microdilution ciprofloxacin MIC; modal MIC reported; interpreted using CLSI 2026 M100 Ed36. | 1281 |
BioSample SAMN35332251 |
EvidencePage data (JSON.gz) |
| Pseudomonas aeruginosa NCBITaxon:287 | — | 4.0 mg/L | — | Broth microdilution ciprofloxacin MIC; modal MIC reported; interpreted using CLSI 2025 M100 S35. | 1106 |
BioSample SAMN19970475 |
EvidencePage data (JSON.gz) |
| Pseudomonas aeruginosa NCBITaxon:287 | — | 8.0 mg/L | — | Broth microdilution ciprofloxacin MIC; modal MIC reported; interpreted using CLSI 2025 M100 S35. | 1107 |
BioSample SAMN31096620 |
EvidencePage data (JSON.gz) |
| Pseudomonas aeruginosa NCBITaxon:287 | — | >8.0 mg/L | — | Broth microdilution ciprofloxacin MIC; modal MIC reported; interpreted using CLSI 2025 M100 S35. | 1268 |
BioSample SAMN33435241 |
EvidencePage data (JSON.gz) |
| Pseudomonas aeruginosa NCBITaxon:287 | — | >8.0 mg/L | — | Broth microdilution ciprofloxacin MIC; modal MIC reported; interpreted using CLSI 2025 M100 S35. | 1269 |
BioSample SAMN33435242 |
EvidencePage data (JSON.gz) |
| Pseudomonas aeruginosa NCBITaxon:287 | — | >8.0 mg/L | — | Broth microdilution ciprofloxacin MIC; modal MIC reported; interpreted using CLSI 2025 M100 S35. | 1270 |
BioSample SAMN33435243 |
EvidencePage data (JSON.gz) |
| Pseudomonas aeruginosa NCBITaxon:287 | — | >8.0 mg/L | — | Broth microdilution ciprofloxacin MIC; modal MIC reported; interpreted using CLSI 2025 M100 S35. | 1328 |
BioSample SAMN50502207 |
EvidencePage data (JSON.gz) |
| Klebsiella pneumoniae NCBITaxon:573 | — | >8.0 mg/L | — | Broth microdilution ciprofloxacin MIC; modal MIC reported; interpreted using CLSI 2025 M100 S35. | 0347 |
BioSample SAMN11953775 |
EvidencePage data (JSON.gz) |
| Escherichia coli NCBITaxon:562 | — | >8.0 mg/L | — | Broth microdilution ciprofloxacin MIC; modal MIC reported; interpreted using CLSI 2025 M100 S35. | 0348 |
BioSample SAMN11953776 |
EvidencePage data (JSON.gz) |
| Escherichia coli NCBITaxon:562 | — | >8.0 mg/L | — | Broth microdilution ciprofloxacin MIC; modal MIC reported; interpreted using CLSI 2025 M100 S35. | 0350 |
BioSample SAMN11953778 |
EvidencePage data (JSON.gz) |
| Escherichia coli NCBITaxon:562 | — | >8.0 mg/L | — | Broth microdilution ciprofloxacin MIC; modal MIC reported; interpreted using CLSI 2025 M100 S35. | 0493 |
BioSample SAMN11953779 |
EvidencePage data (JSON.gz) |
| Escherichia coli NCBITaxon:562 | — | >8.0 mg/L | — | Broth microdilution ciprofloxacin MIC; modal MIC reported; interpreted using CLSI 2025 M100 S35. | 0494 |
BioSample SAMN11953780 |
EvidencePage data (JSON.gz) |
| Escherichia coli NCBITaxon:562 | — | >8.0 mg/L | — | Broth microdilution ciprofloxacin MIC; modal MIC reported; interpreted using CLSI 2025 M100 S35. | 0495 |
BioSample SAMN11953781 |
EvidencePage data (JSON.gz) |
| Acinetobacter baumannii NCBITaxon:470 | — | >8.0 mg/L | — | Broth microdilution ciprofloxacin MIC; modal MIC reported; CDC/FDA AR Isolate Bank reports an R interpretation without a versioned breakpoint footnote on this isolate page. | 0033 |
BioSample SAMN04014874 |
EvidencePage data (JSON.gz) |
| Acinetobacter baumannii NCBITaxon:470 | — | >8.0 mg/L | — | Broth microdilution ciprofloxacin MIC; modal MIC reported; interpreted using CLSI 2024 M100 S34 per the CDC/FDA AR Isolate Bank Panel 1227 footnote. | 0078 |
BioSample SAMN04014919 |
EvidencePage data (JSON.gz) |
| Acinetobacter baumannii NCBITaxon:470 | — | >8.0 mg/L | — | Broth microdilution ciprofloxacin MIC; modal MIC reported; interpreted using CLSI 2020 M100 S30 per the CDC/FDA AR Isolate Bank Panel 1227 footnote. | 0083 |
BioSample SAMN04014924 |
EvidencePage data (JSON.gz) |
| Pseudomonas aeruginosa NCBITaxon:287 | — | >8.0 mg/L | — | CDC/FDA AR Isolate Bank ciprofloxacin MIC; interpreted using CLSI 2026 M100 Ed36 per the Panel 1394 footnote. | 1332 | — | EvidencePage data (JSON.gz) |
| Pseudomonas aeruginosa NCBITaxon:287 | — | >8.0 mg/L | — | CDC/FDA AR Isolate Bank ciprofloxacin MIC; interpreted using CLSI 2026 M100 Ed36 per the Panel 1394 footnote. | 1333 | — | EvidencePage data (JSON.gz) |
| Escherichia coli NCBITaxon:562 | — | >8.0 mg/L | — | Broth microdilution ciprofloxacin MIC; modal MIC reported; interpreted using CLSI 2025 M100 S35 per the CDC/FDA AR Isolate Bank Panel 10 footnote. | 0538 |
BioSample SAMN11953785 |
EvidencePage data (JSON.gz) |
Resistance mechanisms
ANTIBIOTIC_TARGET_PROTECTION 104
ANTIBIOTIC_TARGET_ALTERATION 41
| Determinant | ARO ID | Organism | Gene families | Evidence |
|---|---|---|---|---|
| Acinetobacter baumannii gyrA conferring resistance to fluoroquinolones | ARO:3003817 | — | ||
| Acinetobacter baumannii parC conferring resistance to fluoroquinolones | ARO:3003818 | — | ||
| Bartonella bacilliformis gyrA conferring resistance to fluoroquinolones | ARO:3003297 | — | ||
| Burkholderia dolosa gyrA conferring resistance to fluoroquinolones | ARO:3004860 | — | ||
| Campylobacter jejuni gyrA conferring resistance to fluoroquinolones | ARO:3003789 | — | ||
| Capnocytophaga gingivalis gyrA conferring resistance to fluoroquinolones | ARO:3003931 | — | ||
| Clostridioides difficile gyrA conferring resistance to fluoroquinolones | ARO:3003995 | — | ||
| Clostridioides difficile gyrB conferring resistance to fluoroquinolones | ARO:3004562 | — | ||
| Cutibacterium acnes gyrA conferring resistance to fluoroquinolones | ARO:3003974 | — | ||
| Escherichia coli gyrA conferring resistance to fluoroquinolones | ARO:3003294 | — | ||
| Escherichia coli parC conferring resistance to fluoroquinolones | ARO:3003308 | — | ||
| Escherichia coli parE conferring resistance to fluoroquinolones | ARO:3003316 | — | ||
| Escherichia coli soxR with mutation conferring antibiotic resistance | ARO:3003381 | — | ||
| Escherichia coli soxS with mutation conferring antibiotic resistance | ARO:3003511 | — | ||
| Haemophilus parainfluenzae gyrA conferring resistance to fluoroquinolones | ARO:3003924 | — | ||
| Haemophilus parainfluenzae parC conferring resistance to fluoroquinolones | ARO:3003925 | — | ||
| Morganella morganii gyrB conferring resistance to fluoroquinolones | ARO:3003306 | — | ||
| Mycobacterium avium gyrA with mutation conferring resistance to fluoroquinolone | ARO:3007473 | — | ||
| Mycobacterium leprae gyrA conferring resistance to fluoroquinolones | ARO:3003298 | — | ||
| Mycobacterium leprae gyrB conferring resistance to fluoroquinolones | ARO:3003304 | — | ||
| Mycobacterium tuberculosis gyrA conferring resistance to fluoroquinolones | ARO:3003295 | — | ||
| Mycoplasma hominis parC conferring resistance to fluoroquinolones | ARO:3003310 | — | ||
| Neisseria gonorrhoeae gyrA with mutations conferring resistance to fluoroquinolones | ARO:3003928 | — | ||
| Neisseria gonorrhoeae parC conferring resistance to fluoroquinolones | ARO:3003929 | — | ||
| Pseudomonas aeruginosa gyrA conferring resistance to fluoroquinolones | ARO:3003684 | — | ||
| Pseudomonas aeruginosa parC conferring resistance to fluoroquinolones | ARO:3003702 | — | ||
| Pseudomonas aeruginosa parE conferring resistance to fluoroquinolones | ARO:3003685 | — | ||
| Salmonella enterica gyrA conferring resistance to fluoroquinolones | ARO:3003926 | — | ||
| Salmonella enterica parC conferring resistance to fluoroquinolones | ARO:3003939 | — | ||
| Salmonella enterica soxR with mutation conferring antibiotic resistance | ARO:3003382 | — | ||
| Salmonella isangi gyrA conferring resistance to fluoroquinolones | ARO:3007751 | — | ||
| Salmonella isangi gyrB conferring resistance to fluoroquinolones | ARO:3007752 | — | ||
| Salmonella serovars gyrB conferring resistance to fluoroquinolones | ARO:3003307 | — | ||
| Salmonella serovars parE conferring resistance to fluoroquinolones |
ARO:3003317 | — | ||
| Salmonella serovars soxS with mutation conferring antibiotic resistance | ARO:3003383 | — | ||
| Staphylococcus aureus gyrA conferring resistance to fluoroquinolones | ARO:3003296 | — | ||
| Staphylococcus aureus parC conferring resistance to fluoroquinolones | ARO:3003312 | — | ||
| Staphylococcus aureus parE conferring resistance to fluoroquinolones | ARO:3003315 | — | ||
| Streptococcus pneumoniae parC conferring resistance to fluoroquinolones | ARO:3003311 | — | ||
| Ureaplasma urealyticum gyrB conferring resistance to fluoroquinolones | ARO:3003305 | — | ||
| Ureaplasma urealyticum parC conferring resistance to fluoroquinolones | ARO:3003309 | — |
ANTIBIOTIC_EFFLUX 30
| Determinant | ARO ID | Organism | Gene families | Evidence |
|---|---|---|---|---|
| AcrEF-TolC confers resistance to ciprofloxacin | ARO:3004083 | — | ||
| EfrAB | ARO:3003947 | — | ||
| Enterobacter aerogenes acrR with mutation conferring multidrug antibiotic resistance | ARO:3003374 | — | ||
| Escherichia coli AcrR with mutation associated with multidrug resistance | ARO:3003807 | — | ||
| Escherichia coli MarR with mutation associated with multidrug resistance | ARO:3003378 | — | ||
| Klebsiella pneumoniae KpnGH-TolC | ARO:3004598 | — | ||
| Klebsiella pneumoniae acrA | ARO:3004041 | — | ||
| MdtK | ARO:3001327 | — | ||
| MexAB-OprM | ARO:3000386 | — | ||
| MexEF-OprN with MexS mutations conferring resistance to chloramphenicol, ciprofloxacin, and trimethoprim | ARO:3004068 | — | ||
| MexEF-OprN with MexT mutation conferring resistance to chloramphenicol, ciprofloxacin, and trimethoprim | ARO:3004066 | — | ||
| MexXY-OprA | ARO:3003038 | — | ||
| MexXY-OprM | ARO:3003032 | — | ||
| PatA-PatB | ARO:3000769 | — | ||
| QepA1 | ARO:3000448 | — | ||
| QepA2 | ARO:3004103 | — | ||
| QepA3 | ARO:3004378 | — | ||
| QepA4 | ARO:3004379 | — | ||
| Salmonella enterica ramR mutants | ARO:3003379 | — | ||
| Shigella flexneri acrA | ARO:3007509 | — | ||
| Staphylococcus aureus norA | ARO:3004667 | — | ||
| abeM | ARO:3000753 | — | ||
| hp1181 | ARO:3003964 | — | ||
| hp1184 | ARO:3003965 | — | ||
| lfrA | ARO:3003967 | — | ||
| mdeA | ARO:3007011 | — | ||
| norA | ARO:3000391 | — | ||
| norB | ARO:3000421 | — | ||
| oqxAB | ARO:3003921 | — | ||
| pmrA | ARO:3000822 | — |
ANTIBIOTIC_INACTIVATION 11
| Determinant | ARO ID | Organism | Gene families | Evidence |
|---|---|---|---|---|
| AAC(6')-Ib-cr1 | ARO:3002547 | — | ||
| AAC(6')-Ib-cr3 | ARO:3005112 | — | ||
| AAC(6')-Ib-cr4 | ARO:3005114 | — | ||
| AAC(6')-Ib-cr5 | ARO:3005115 | — | ||
| AAC(6')-Ib-cr6 | ARO:3005116 | — | ||
| AAC(6')-Ib-cr7 | ARO:3005117 | — | ||
| AAC(6')-Ib-cr8 | ARO:3005118 | — | ||
| AAC(6')-Ib-cr9 | ARO:3005119 | — | ||
| aac(6')-Ib-cr10 | ARO:3007770 | — | ||
| aac(6')-Ib-cr11 | ARO:3007771 | — | ||
| fosA5 | ARO:3003209 | — |
REDUCED_PERMEABILITY 2
| Determinant | ARO ID | Organism | Gene families | Evidence |
|---|---|---|---|---|
| Escherichia coli LamB | ARO:3004126 | — | ||
| Serratia marcescens Omp1 | ARO:3004128 | — |
Causal graphs
Ciprofloxacin poisons bacterial type II topoisomerases MECHANISTIC
Ciprofloxacin traps bacterial DNA gyrase and topoisomerase IV on cleaved DNA, preventing resealing of the enzyme-linked DNA break and disrupting replication-linked DNA topology control.
| Node | Label | Type | Grounding |
|---|---|---|---|
ciprofloxacin |
ciprofloxacin | COMPOUND | CHEBI:100241 |
dna_gyrase |
bacterial DNA gyrase |
GENE_OR_PROTEIN | ARO:3000733 |
topoisomerase_iv |
bacterial topoisomerase IV |
GENE_OR_PROTEIN | ARO:3000735 |
gyrase_dna_cleavage_complex |
DNA gyrase covalent DNA cleavage complex | STATE | REVIEWED_LABEL_ONLY |
topoiv_dna_cleavage_complex |
topoisomerase IV covalent DNA cleavage complex | STATE | REVIEWED_LABEL_ONLY |
dna_religation |
type II topoisomerase DNA religation | MOLECULAR_FUNCTION | REVIEWED_LABEL_ONLY |
dna_topology_control |
replication-associated DNA topology control | BIOLOGICAL_PROCESS | REVIEWED_LABEL_ONLY |
| Subject | Predicate | Object | Evidence |
|---|---|---|---|
ciprofloxacin |
stabilizes | gyrase_dna_cleavage_complex |
|
dna_gyrase |
participates in | gyrase_dna_cleavage_complex |
|
ciprofloxacin |
stabilizes | topoiv_dna_cleavage_complex |
|
topoisomerase_iv |
participates in | topoiv_dna_cleavage_complex |
|
gyrase_dna_cleavage_complex |
inhibits | dna_religation |
|
topoiv_dna_cleavage_complex |
inhibits | dna_religation |
|
dna_religation |
supports | dna_topology_control |
Curation history
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SEEDED_FROM_SOURCES
Seeded from data/raw/ inventories (ARO, CHEBI)
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RESEEDED_FROM_SOURCES
Re-seeded from updated data/raw/ inventories
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RESEEDED_FROM_SOURCES
Re-seeded from updated data/raw/ inventories
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RESEEDED_FROM_SOURCES
Re-seeded from updated data/raw/ inventories
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RESEEDED_FROM_SOURCES
Re-seeded from updated data/raw/ inventories
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RESEEDED_FROM_SOURCES
Re-seeded from updated data/raw/ inventories
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RESEEDED_FROM_SOURCES
Re-seeded from updated data/raw/ inventories
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CURATED_CAUSAL_GRAPH
Added a PMID-supported causal graph for ciprofloxacin poisoning of bacterial DNA gyrase and topoisomerase IV.
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RESEEDED_FROM_SOURCES
Re-seeded from updated data/raw/ inventories
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CURATED_RESISTANT_TAXA
Added one stable-URL CDC/FDA AR Isolate Bank ciprofloxacin-resistant Escherichia coli isolate MIC observation.
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CURATED_RESISTANT_TAXA
Added five DOI-backed ciprofloxacin-resistant Neisseria gonorrhoeae isolate MIC observations from Liu et al. 2022.
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CURATED_RESISTANT_TAXA
Added one stable-URL CDC/FDA AR Isolate Bank ciprofloxacin-resistant Klebsiella pneumoniae isolate MIC observation.
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CURATED_RESISTANT_TAXA
Added one stable-URL CDC/FDA AR Isolate Bank ciprofloxacin-resistant Acinetobacter baumannii isolate MIC observation.
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CURATED_RESISTANT_TAXA
Corrected the CDC/FDA AR Isolate Bank 0349 breakpoint context from CLSI 2024 M100 S34 to CLSI 2025 M100 S35.
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CURATED_RESISTANT_TAXA
Added one stable-URL CDC/FDA AR Isolate Bank ciprofloxacin-resistant Escherichia coli MIC observation from isolate 0346.
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CURATED_RESISTANT_TAXA
Added one stable-URL CDC/FDA AR Isolate Bank ciprofloxacin-resistant Neisseria gonorrhoeae MIC observation from isolate 0963.
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CURATED_RESISTANT_TAXA
Added one stable-URL CDC/FDA AR Isolate Bank ciprofloxacin-resistant Escherichia coli isolate MIC observation for AR-1305.
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CURATED_RESISTANT_TAXA
Added 5 stable-URL CDC/FDA AR Isolate Bank ciprofloxacin-resistant Multi-Mechanism panel MIC observations for AR-1155, AR-1156, AR-1157, AR-1159, and AR-1161.
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CURATED_RESISTANT_TAXA
Added two stable-URL CDC/FDA AR Isolate Bank Panel 10 ciprofloxacin-resistant Neisseria gonorrhoeae MIC observations for AR-1280 and AR-1281.
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CURATED_RESISTANT_TAXA
Added one stable-URL CDC/FDA AR Isolate Bank Panel 10 ciprofloxacin-resistant Pseudomonas aeruginosa MIC observation for AR-1106.
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CURATED_RESISTANT_TAXA
Added one stable-URL CDC/FDA AR Isolate Bank Panel 10 ciprofloxacin-resistant Pseudomonas aeruginosa MIC observation for AR-1107.
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CURATED_RESISTANT_TAXA
Added one stable-URL CDC/FDA AR Isolate Bank Panel 10 ciprofloxacin-resistant Pseudomonas aeruginosa MIC observation for AR-1268.
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CURATED_RESISTANT_TAXA
Added one stable-URL CDC/FDA AR Isolate Bank Panel 10 ciprofloxacin-resistant Pseudomonas aeruginosa MIC observation for AR-1269.
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CURATED_RESISTANT_TAXA
Added one stable-URL CDC/FDA AR Isolate Bank Panel 10 ciprofloxacin-resistant Pseudomonas aeruginosa MIC observation for AR-1270.
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CURATED_RESISTANT_TAXA
Added one stable-URL CDC/FDA AR Isolate Bank Panel 10 ciprofloxacin-resistant Pseudomonas aeruginosa MIC observation for AR-1328.
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CURATED_RESISTANT_TAXA
Added one stable-URL CDC/FDA AR Isolate Bank Panel 10 ciprofloxacin-resistant Klebsiella pneumoniae MIC observation for AR-0347.
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CURATED_RESISTANT_TAXA
Added one stable-URL CDC/FDA AR Isolate Bank Panel 10 ciprofloxacin-resistant Escherichia coli MIC observation for AR-0348.
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CURATED_RESISTANT_TAXA
Added one stable-URL CDC/FDA AR Isolate Bank Panel 10 ciprofloxacin-resistant Escherichia coli MIC observation for AR-0350.
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CURATED_RESISTANT_TAXA
Added one stable-URL CDC/FDA AR Isolate Bank Panel 10 ciprofloxacin-resistant Escherichia coli MIC observation for AR-0493.
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CURATED_RESISTANT_TAXA
Added one stable-URL CDC/FDA AR Isolate Bank Panel 10 ciprofloxacin-resistant Escherichia coli MIC observation for AR-0494.
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CURATED_RESISTANT_TAXA
Added one stable-URL CDC/FDA AR Isolate Bank Panel 10 ciprofloxacin-resistant Escherichia coli MIC observation for AR-0495.
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CURATED_RESISTANT_TAXA
Replaced one CDC/FDA AR Isolate Bank Panel 10 ciprofloxacin-resistant Klebsiella pneumoniae MIC observation for AR-0497 with the canonical isolate-detail URL and source metadata.
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CURATED_RESISTANT_TAXA
Added CDC/FDA AR Isolate Bank Panel 1227 isolate 0033 Acinetobacter baumannii ciprofloxacin MIC >8 mg/L with interpretation R; preserved BioSample SAMN04014874 and Study ID CarbaNP-02 in evidence notes.
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CURATED_RESISTANT_TAXA
Added one stable-URL CDC/FDA AR Isolate Bank Panel 1227 ciprofloxacin-resistant Acinetobacter baumannii MIC observation for AR-0078; preserved source Pus, BioSample SAMN04014919, Study ID CarbaNP-47, and MLST ST229(Pasteur)/ST203(Oxford) in evidence notes.
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CURATED_RESISTANT_TAXA
Added one stable-URL CDC/FDA AR Isolate Bank Panel 1227 ciprofloxacin-resistant Acinetobacter baumannii MIC observation for AR-0083; preserved source Unknown, BioSample SAMN04014924, Study ID CarbaNP-52, and MLST ST1(Pasteur)/ST231/1604(Oxford) in evidence notes.
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CURATED_RESISTANT_TAXA
Added two stable-URL CDC/FDA AR Isolate Bank Panel 1394 ciprofloxacin-resistant Pseudomonas aeruginosa MIC observations for AR-1332 and AR-1333; preserved source Urine, Study IDs IMP-10 and IMP-11, unavailable BioSample accessions, and MLST ST357(Pasteur)/ST2731(Pasteur) in evidence notes.
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CURATED_RESISTANT_TAXA
Added one stable-URL CDC/FDA AR Isolate Bank Panel 10 ciprofloxacin-resistant Escherichia coli MIC observation for AR-0538; preserved BioSample SAMN11953785 and Study ID NEW-22 in evidence notes.
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STRUCTURED_ACTIVITY_BIOSAMPLE_ACCESSIONS
Structured BioSample accessions on 28 activity_spectrum observation(s) where evidence notes already named exactly one accession.
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RESEEDED_FROM_SOURCES
Re-seeded; changed: activity_spectrum (CRYPTIC 3.4.0). Upstream retrieval date 2026-08-30, unchanged.
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RESEEDED_FROM_SOURCES
Re-seeded; changed: activity_membership_collections (CRYPTIC 3.4.0). Upstream retrieval date 2026-08-30, unchanged.
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RESEEDED_FROM_SOURCES
Re-seeded; changed: resistance_mechanisms (CARD). Upstream retrieval date 2026-08-30, unchanged.
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CURATED_UNIPROT_PROTEIN_EXAMPLES
Added curated E. coli K-12 reference-strain UniProtKB protein examples for DNA gyrase (GyrA P0AES4, GyrB P0AES6) and topoisomerase IV (ParC P0AFI2, ParE P20083) on the ciprofloxacin_topoisomerase_poisoning causal graph nodes.