KpKP13 Protein target profile

DNA gyrase subunit A

Accession: KP13_00955

Gene: gyrA AHE43517.1 3D evidence: AlphaFold DB model + ColabFold model UniProt A0A0H3H0Y6
Length 877
Pocket druggability (P2Rank · AlphaFold DB model) 0.754
Direct ligand evidence 0 91 total records
Functional annotation 1 EC 11 GO
Target summary

Target candidate with partial support; inspect missing evidence before prioritizing.

Automated synthesis of the evidence currently loaded. Review the underlying records before prioritizing this protein.

Terms and data sources used on this page

PDB: experimentally determined structures from the Protein Data Bank. These are the strongest structural evidence, but may cover only part of the protein.

AlphaFold DB model: a precomputed predicted structure downloaded from AlphaFold Database/UniProt, not an experiment performed here.

ColabFold model: a predicted structure generated for this workspace; interpret it with coverage and confidence.

pLDDT: confidence score for predicted structures. High values support local geometry; low values mean the region should not drive pocket interpretation.

FPocket / P2Rank: software tools that predict possible ligand-binding pockets on a 3D structure. They are useful screening signals, not experimental validation.

Druggability: a pocket-based estimate of whether a small molecule could bind productively. It does not mean a drug already exists.

PDB ligand: a compound observed in an experimental structure. Direct same-protein records are stronger than homolog-transferred records.

ChEMBL: a public database of measured compound bioactivity. Direct entries are stronger than entries transferred from similar proteins.

ZINC: a purchasable-compound database. Here it marks proposed candidates from chemical similarity, not measured binders.

LigQ / LigQ_2: an internal Target pipeline step that gathers PDB, ChEMBL, and ZINC ligand evidence for each protein.

Off-target: sequence similarity to proteins we prefer not to hit, such as human proteins or beneficial gut microbiome proteins.

DEG: Database of Essential Genes. A match suggests the protein resembles genes known to be essential in other organisms.

Roary / CoreCruncher: pan-genome tools used to decide whether a gene is core across analyzed strains or accessory/strain-specific.

EC / GO: functional annotations: EC describes enzyme reactions; GO describes biological process, molecular function, or cellular component.

KEGG pathway: a curated metabolic route label used here to group reactions imported from the metabolic model.

Chokepoint: a metabolic reaction that is the only producer or consumer of a metabolite in the imported model.

Prioritization evidence

Selectivity, essentiality, structural confidence, conservation, and predicted binding-site evidence.

Off-target risk

Human off-target
Hit
Human identity (%)
27.566 Lower values reduce human off-target concern.
Human E-value
1.59e-15
Gut microbiome similarity
8.5% of screened genomes Lower prevalence suggests narrower overlap with the screened gut microbiome.

Essentiality

Essential (DEG)
Y
DEG identity (%)
95.886 Higher values support similarity to known essential genes.
DEG E-value
0.0 Smaller values mean stronger essential-gene similarity.

Structure confidence

ColabFold pLDDT
86.72 0-100 confidence; >70 supports local structural interpretation.

Binding-site evidence

AlphaFold DB / UniProt model

P2Rank's binding-site probability is the primary druggability signal shown across the app; FPocket's druggability score is shown alongside it for comparison. Both estimate small-molecule pocket quality after applying the curated structure priority — neither is experimental binding evidence. The 3D viewer may show a different loaded structure, so visible pockets can differ.

Druggability (P2Rank) 0.754
Structure A0A0H3H0Y6
Pocket Pocket 1
Druggability (FPocket) 0.336
Structure A0A0H3H0Y6
Pocket Pocket 50
ColabFold model
P2Rank 0.79 · Pocket 1
FPocket 0.665 · Pocket 10
Core conservation Accessory gene
Roary accessory
CoreCruncher accessory
Gut microbiome 404 / 4744 genomes with a hit
Prevalence 8.5%

Sequence

Primary amino-acid sequence viewer.

MSDLAREITPVNIEEELKNSYLDYAMSVIVGRALPDVRDGLKPVHRRVLYAMNVLGNDWNKAYKKSARVVGDVIGKYHPHGDFAVYNTIVRMAQPFSLRYMLVDGQGNFGSIDGDSAAAMRYTEIRLAKIAHELMADLEKETVDFVDNYDGTERIPDVMPTKIPNLLVNGASGIAVGMATNIPPHNLTEVINGCLAYVDDEDISIEGLMAHIPGPDFPTAAIINGRRGIEEAYRTGRGKVYIRARAEVEVDAKSGRETIIVHEIPYQVNKARLIEKIAELVKEKRVEGISALRDESDKDGMRIVIEVKRDAVGEVVLNNLYSQTQLQVSFGINMVALHHGQPKIMNLKDIIAAFVRHRREVVTRRTIFELRKARDRAHILEALAVALANIDPIIELIRRAPTPAEAKTALVAQAWDLGNVAAMLERAGDDAARPEWLEPEFGVRDGKYYLTEQQAQAILDLRLQKLTGLEHEKLLDEYKELLEQIAELLHILGSADRLMEVIREELELIRDQFGDERRTEITANSADINIEDLINQEDVVVTLSHQGYVKYQPLTDYEAQRRGGKGKSAARIKEEDFIDRLLVANTHDTILCFSSRGRLYWMKVYQLPEASRGARGRPIVNLLPLEADERITAILPVREYEEGVNVFMATASGTVKKTALTEFSRPRSAGIIAVNLNEGDELIGVDLTSGQDEVMLFSAAGKVVRFKEDAVRAMGRTATGVRGIKLAENDSVVSLIIPRGEGAILTVTQNGYGKRTAAAEYPTKSRATQGVISIKVTERNGSVVGAVQVDDCDQIMMITDAGTLVRTRVSEVSIVGRNTQGVILIRTAEDENVVGLQRVAEPVDDEELDAIDGSAAEGDDDIAPEADTDDDIAEDEE

Functional annotations

Enzyme classification and Gene Ontology terms linked to this protein.

1 EC 11 GO

Subcellular localization

Localization
Cytoplasmic

Enzyme Commission (EC)

1

Gene Ontology (GO)

11
  • GO:0006265 The process in which a transformation is induced in the topological structure of a double-stranded DNA helix, resulting in a change in linking number.
  • GO:0005524 Binding to ATP, adenosine 5'-triphosphate, a universally important coenzyme and enzyme regulator.
  • GO:0003916 Catalysis of the transient cleavage and passage of individual DNA strands or double helices through one another, resulting a topological transformation in double-stranded DNA.
  • GO:0006259 Any cellular metabolic process involving deoxyribonucleic acid. This is one of the two main types of nucleic acid, consisting of a long, unbranched macromolecule formed from one, or more commonly, two, strands of linked deoxyribonucleotides.
  • GO:0003918 Catalysis of a DNA topological transformation by transiently cleaving a pair of complementary DNA strands to form a gate through which a second double-stranded DNA segment is passed, after which the severed strands in the first DNA segment are rejoined, driven by ATP hydrolysis. The enzyme changes the linking number in multiples of 2.
  • GO:0005694 A structure composed of a very long molecule of DNA and associated proteins (e.g. histones) that carries hereditary information.
  • GO:0003677 Any molecular function by which a gene product interacts selectively and non-covalently with DNA (deoxyribonucleic acid).
  • GO:0005737 The contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
  • GO:0009330 Complex that possesses DNA topoisomerase II (double strand cut, ATP-hydrolyzing) activity.
  • GO:0034335 Catalytic introduction of negative supercoils into a DNA molecule or region thereof. In bacteria, negative supercoils are only introduced by DNA gyrase, a type II topoisomerase, but not all DNA gyrases are capable of introducing supercoils. In bacteria, the level of supercoiling varies widely between species and has been characterized properly in only a handful of organisms. The best characterized enzyme, from E.coli, is exceptionally proficient at supercoiling and this ability is not representative of all bacteria.
  • GO:0006261 A DNA replication process that uses parental DNA as a template for the DNA-dependent DNA polymerases that synthesize the new strands.

Sequence domains and features

Domain and signature matches imported from InterPro and related databases.

39 records
Show feature table
Start End DB Term Name
32 279 FunFam G3DSA:3.90.199.10:FF:000001 DNA gyrase subunit A
1 841 Hamap MF_01897 DNA gyrase subunit A [gyrA].
1 841 InterPro IPR005743 DNA gyrase, subunit A
32 521 Gene3D G3DSA:3.90.199.10 Topoisomerase II, domain 5
32 521 InterPro IPR013758 DNA topoisomerase, type IIA, domain A, alpha-beta
531 840 FunFam G3DSA:2.120.10.90:FF:000002 DNA gyrase subunit A
471 491 Coils Coil Coil
30 507 CDD cd00187 TOP4c
30 507 InterPro IPR002205 DNA topoisomerase, type IIA, domain A
8 840 NCBIfam TIGR01063 DNA gyrase subunit A
236 333 Gene3D G3DSA:3.30.1360.40 -
5 845 PANTHER PTHR43493 DNA GYRASE/TOPOISOMERASE SUBUNIT A
538 584 Pfam PF03989 DNA gyrase C-terminal domain, beta-propeller
538 584 InterPro IPR006691 DNA gyrase/topoisomerase IV, subunit A, C-terminal repeat
793 839 Pfam PF03989 DNA gyrase C-terminal domain, beta-propeller
793 839 InterPro IPR006691 DNA gyrase/topoisomerase IV, subunit A, C-terminal repeat
744 789 Pfam PF03989 DNA gyrase C-terminal domain, beta-propeller
744 789 InterPro IPR006691 DNA gyrase/topoisomerase IV, subunit A, C-terminal repeat
645 688 Pfam PF03989 DNA gyrase C-terminal domain, beta-propeller
645 688 InterPro IPR006691 DNA gyrase/topoisomerase IV, subunit A, C-terminal repeat
588 637 Pfam PF03989 DNA gyrase C-terminal domain, beta-propeller
588 637 InterPro IPR006691 DNA gyrase/topoisomerase IV, subunit A, C-terminal repeat
692 737 Pfam PF03989 DNA gyrase C-terminal domain, beta-propeller
692 737 InterPro IPR006691 DNA gyrase/topoisomerase IV, subunit A, C-terminal repeat
236 333 FunFam G3DSA:3.30.1360.40:FF:000002 DNA gyrase subunit A
370 492 Gene3D G3DSA:1.10.268.10 Topoisomerase, domain 3
370 492 InterPro IPR013757 DNA topoisomerase, type IIA, alpha-helical domain superfamily
845 877 MobiDBLite mobidb-lite consensus disorder prediction
32 506 Pfam PF00521 DNA gyrase/topoisomerase IV, subunit A
32 506 InterPro IPR002205 DNA topoisomerase, type IIA, domain A
839 877 MobiDBLite mobidb-lite consensus disorder prediction
531 840 Gene3D G3DSA:2.120.10.90 -
531 840 InterPro IPR035516 DNA gyrase/topoisomerase IV, subunit A, C-terminal
30 521 SUPERFAMILY SSF56719 Type II DNA topoisomerase
30 521 InterPro IPR013760 DNA topoisomerase, type IIA-like domain superfamily
11 499 SMART SM00434 topIV4
11 499 InterPro IPR002205 DNA topoisomerase, type IIA, domain A
533 851 SUPERFAMILY SSF101904 GyrA/ParC C-terminal domain-like
533 851 InterPro IPR035516 DNA gyrase/topoisomerase IV, subunit A, C-terminal

3D structure

Selected loaded structure. Experimental PDB entries may cover only a portion of the sequence; AlphaFold DB and ColabFold models typically cover the full protein but remain computational predictions.

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Pocket score High Medium Low
How colors and pocket overlays are used
Uniform protein color marks the displayed model as a single molecular object.
Experimental PDB structures may be colored by chain to distinguish subunits or copies present in the file.
Pocket colors and alpha spheres are evidence overlays for predicted binding cavities; they are not alternative protein chains.
'Alpha spheres' is FPocket's own cavity-shape geometry, imported when available and aligned with the loaded structure.
'Pocket atoms'/'Predicted site atoms' show the pocket's residue atoms instead: P2Rank reports residues rather than alpha spheres, and FPocket falls back to this when alpha-sphere geometry is unavailable or doesn't align.
'No pocket geometry' means neither alpha spheres nor residue-position data could be found for that pocket; the layer just highlights the same residues as 'Nearby residues'.
Pocket details Inspect a specific pocket, or open the full viewer

Binding pockets · P2Rank

Druggability (P2Rank): high ≥ 0.5 · medium 0.2–0.49 · low < 0.2

Pocket 1 P2Rank #1
0.754
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Surrounding area
Pocket 2 P2Rank #2
0.192
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Surrounding area
Pocket 3 P2Rank #3
0.038
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Surrounding area
Pocket 4 P2Rank #4
0.032
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Surrounding area
Pocket 5 P2Rank #5
0.02
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Surrounding area

Binding pockets · FPocket

Druggability (FPocket): high ≥ 0.7 · medium 0.4–0.69 · low < 0.4

Pocket 1 FPocket #50
0.336
Show in viewer
Surrounding area
Pocket 2 FPocket #40
0.211
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Surrounding area
Residue sets
UniProt: Active site:122-122 O-(5'-phospho-DNA)-tyrosine intermediate
All structural evidence 0 experimental · 2 predicted

Structural evidence

0 + 2

Experimental PDB entries plus predicted AlphaFold DB or ColabFold models. Click Switch to display a different loaded structure in the viewer.

Entry Method Resolution Chain Coverage Links Status
AlphaFold DB AF_A0A0H3H0Y6
AlphaFold DB full sequence Viewing
ColabFold KP13_00955
ColabFold full sequence Loaded

Ligand evidence

Ligands grouped by evidence source. PDB ligands keep the source crystal visible, and loaded crystals can be opened directly in the structure viewer.

91 records
Chemistry signal

Structural and bioactivity evidence are both available for this target.

Direct evidence 0 same-protein records
Transferred evidence 41 records from similar proteins
Structural ligands 25 0 loaded crystals
Measured bioactivity 16 direct and transferred ChEMBL records
Proposed compounds 50 similarity-based ZINC candidates
Best available ligand signal
31N PDB via homolog 509.5 Da · LogP 2.28 · TPSA 127.7 Open detail RCSB PDB
50M PDB via homolog Detail RCSB PDB
6EJ PDB via homolog Detail RCSB PDB
8MX PDB via homolog Detail RCSB PDB
94H PDB via homolog Detail RCSB PDB

Structural evidence inferred from similar proteins. The source crystal indicates where the ligand was observed; the UniProt column identifies the homologous protein carrying that ligand.

Show only:
Ligand Source crystal UniProt (homolog) MW · LogP · TPSA Lipinski PAINS SMILES
31N RCSB PDB P20831 509.5 Da LogP 2.28 TPSA 127.7 1 viol. ✓ Clean COc1ccc2c(n1)c(c(cn2)F)C[C@@H](C34CCC(CC3)(CO4)…
50M RCSB PDB Q99XG5 374.4 Da LogP 1.33 TPSA 134.4 ✓ Ro5 ✓ Clean C[C@@H]1CN2c3ccc(cc3C[C@]4([C@H]2[C@@H](O1)C)C(…
6EJ RCSB PDB Q99XG5 451.5 Da LogP 2.05 TPSA 81.5 ✓ Ro5 ✓ Clean c1cc(c2c3c1C=CC(=O)N3C[C@H]2CN4CCC(CC4)NCc5cc6c…
8MX RCSB PDB P9WG47 385.4 Da LogP 2.67 TPSA 74.6 ✓ Ro5 ✓ Clean Cc1c2c(cc(c1N3C[C@@H]4CCCN[C@@H]4C3)F)C(=O)C(=C…
94H RCSB PDB Q99XG5 362.5 Da LogP 3.72 TPSA 83.8 ✓ Ro5 ✓ Clean c1ccc(cc1)[C@H](CN)NC(=O)c2cc(cs2)c3c[nH]c4c3cc…
94K RCSB PDB Q99XG5 370.9 Da LogP 4.81 TPSA 55.1 ✓ Ro5 ✓ Clean Cc1c(cc(s1)c2ccccc2Cl)C(=O)N[C@@H](CN)c3ccccc3
9JN RCSB PDB Q99XG5 362.5 Da LogP 3.72 TPSA 83.8 ✓ Ro5 ✓ Clean c1ccc(cc1)[C@@H](CN)NC(=O)c2cc(cs2)c3c[nH]c4c3c…
AE8 RCSB PDB Q99XG5 467.5 Da LogP 1.16 TPSA 101.7 ✓ Ro5 ✓ Clean c1c(ncc2c1OCCO2)CNC3CCN(CC3)C[C@@]4(CN5c6c4c(cn…
ANP RCSB PDB P0AES4 506.2 Da LogP -2.06 TPSA 281.9 3 viol. ✓ Clean c1nc(c2c(n1)n(cn2)[C@H]3[C@@H]([C@@H]([C@H](O3)…
DG RCSB PDB Q99XG5 347.2 Da LogP -1.54 TPSA 185.8 ✓ Ro5 ✓ Clean c1nc2c(n1[C@H]3C[C@@H]([C@H](O3)COP(=O)(O)O)O)N…
DT RCSB PDB Q99XG5 322.2 Da LogP -1.40 TPSA 151.1 ✓ Ro5 ✓ Clean CC1=CN(C(=O)NC1=O)[C@H]2C[C@@H]([C@H](O2)COP(=O…
DU5 RCSB PDB Q99XG5 374.5 Da LogP 3.18 TPSA 48.5 ✓ Ro5 ✓ Clean c1ccc(cc1)C(=O)NCCCN2CCN(CC2)c3c4ccccc4ccn3
E32 RCSB PDB Q99XG5 327.4 Da LogP 1.66 TPSA 68.6 ✓ Ro5 ✓ Clean c1cn-2c(n1)C(=O)N(c3c2cc(c(c3)N4CC[C@@H](C4)N)F…
E3E RCSB PDB Q99XG5 320.3 Da LogP 3.19 TPSA 52.2 ✓ Ro5 ✓ Clean c1cnccc1c2cc3c(cc2F)-n4ccnc4C(=O)N3C5CC5
EVP RCSB PDB Q99XG5 588.6 Da LogP 1.34 TPSA 160.8 2 viol. ✓ Clean C[C@@H]1OC[C@@H]2[C@@H](O1)[C@@H]([C@H]([C@@H](…
GFN RCSB PDB P9WG47 375.4 Da LogP 1.98 TPSA 83.8 ✓ Ro5 ✓ Clean C[C@H]1CN(CCN1)c2c(cc3c(c2OC)N(C=C(C3=O)C(=O)O)…
JHN RCSB PDB P0AES4 448.5 Da LogP 1.09 TPSA 94.3 ✓ Ro5 ✓ Clean c1c2c(cnc1CNC3CCN(CC3)C[C@@H]4CN5C(=O)C=CC6=C5N…
JK8 RCSB PDB Q99XG5 364.8 Da LogP 5.23 TPSA 61.3 1 viol. ✓ Clean c1ccc(cc1)[C@H](CN)Oc2c3cc(ccc3on2)c4ccccc4Cl
LFX RCSB PDB Q8DPM2 361.4 Da LogP 1.54 TPSA 75.0 ✓ Ro5 ✓ Clean C[C@H]1COc2c3c(cc(c2N4CCN(CC4)C)F)C(=O)C(=CN31)…
MFX RCSB PDB Q8DPM2 401.4 Da LogP 2.37 TPSA 83.8 ✓ Ro5 ✓ Clean COc1c2c(cc(c1N3C[C@@H]4CCCN[C@@H]4C3)F)C(=O)C(=…
Q52 RCSB PDB P20831 410.9 Da LogP 4.09 TPSA 50.3 ✓ Ro5 ✓ Clean COc1ccc2c(n1)c(ccn2)CCN3CCC(CC3)NCc4ccc(cc4)Cl
RXV RCSB PDB Q99XG5 461.6 Da LogP 3.75 TPSA 83.3 ✓ Ro5 ✓ Clean COc1ccc2c(c1)c(c(cn2)C#N)CCN3CCC(CC3)NCc4cc5c(c…
SM8 RCSB PDB P0AES5 932.3 Da LogP 3.00 TPSA 309.4 3 viol. ✓ Clean C[C@@H]1[C@H]([C@@H](C[C@@H](O1)c2ccc3c(c2O)[C@…
TR6 RCSB PDB Q8DPM2 416.4 Da LogP 1.89 TPSA 101.5 ✓ Ro5 ✓ Clean c1cc(c(cc1F)F)N2C=C(C(=O)c3c2nc(c(c3)F)N4C[C@@H…
WCP RCSB PDB P20831 507.5 Da LogP 1.72 TPSA 127.6 1 viol. ✓ Clean c1cc2c(nc1CNC34CCC(CC3)(OC4)C[C@@]5(CN6c7c5c(cn…

PDB and ChEMBL records on this protein are shown in full. ChEMBL records from similar proteins are capped at the top 100 per protein (by pchembl) and ZINC at the top 50 (Tanimoto ≥ 0.5). ADME columns are descriptor-based screening flags, not experimental toxicity results.

Cross-references

External database identifiers for this protein, its structures, ligands, and metabolic reactions.