Protein target profile

VK055_1980

HAD ATPase, P-type, IC family protein

Genome: KpATCC43816 Gene: AIK80586.1 3D evidence: AlphaFold DB model + ColabFold model UniProt A0A0H3GJR1
Length 879
Pocket druggability 0.994
Direct ligand evidence 0 61 total records
Functional annotation 0 EC 14 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 (%)
47.727 Lower values reduce human off-target concern.
Human E-value
7.170000000000001e-21
Gut microbiome similarity
1.1% of screened genomes Lower prevalence suggests narrower overlap with the screened gut microbiome.

Essentiality

Essential (DEG)
N
DEG identity (%)
38.453 Higher values support similarity to known essential genes.

Localization

Localization
CytoplasmicMembrane

Structure confidence

ColabFold pLDDT
88.09 0-100 confidence; >70 supports local structural interpretation.

Binding-site evidence

AlphaFold DB / UniProt model

The selected pocket score is the FPocket value used for ranking after applying the curated structure priority. It estimates small-molecule pocket quality; it is not experimental binding evidence. The 3D viewer may show a different loaded structure, so visible pockets can differ.

FPocket 0.994
Structure A0A0H3GJR1
Pocket Pocket 16
P2Rank 0.547
Structure A0A0H3GJR1
Pocket Pocket 1
ColabFold model
FPocket 0.874 · Pocket 3
P2Rank 0.585 · Pocket 1
Core conservation Accessory gene
Roary accessory
CoreCruncher accessory
Gut microbiome 50 / 4744 genomes with a hit
Prevalence 1.1%

Cross-references

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

Sequence

Primary amino-acid sequence viewer.

MLAQTKSQAAGLSSADAAERLNTCGPNALPEKKGKPGWLRFLAHFNDVLIYVLLAAAALTAIMGHWVDTLVILGVTVINALIGHIQESNAEKSLQGIRNMLSSDARVQRNGKHETIPTRDLVPGDIVILRAGDRVPADMRLIETHNLRVEEAILTGESTVVDKITDALEGDLPLGDRVNMVFSGTTVSAGGGVGVVTATGAQTELGHINQMMAGIEKHRTPLLVQMDKLGKAIFAIILAMMVALFIFSLALRDIPMGELLLSLISLAVAAVPEGLPAIISIILSLGVQTMARKRAIIRKLPTVETLGAMTVVCSDKTGTLTMNEMTVKAIITADCCYRVEGDSYEPQGRIFLEGSDEPVQVQPGTVLETWLRTIDLCNDSQLTQDERGLWGITGGPTEGALKVLAAKAQLPAVEARLVAKIPFDSQYKYMSTLQHIDGNARVLITGAPDVIFAMCREQMSRHGAVPFEAQYWEEEMARFARQGLRMVAAACKPASLDATTLNHEDLQEGLIFLGIAGMMDPPRPEAIDAIHACQTAGIRVKMITGDHPQTAMSIGQMLGITNSSQAMTGYQLEHMDDAALAKAAVEYDIFARTSPEHKLRLVKALQDNGEVVGMTGDGVNDAPALRQADVGIAMGIKGTEVTKEAADMVLTDDNFATIASSVKEGRRVYDNLKKTILFIMPTNLAQGLLIIIALLAGNIIPLTPVLILWMNMATSATLSFGLAFEAAERNVMNRPPRKTGQHVMDGFAVWRVAFVGSMIAIAAFILEAWLAPRGHSPEFIRTVLLQMLVTAQWVYMINCRSSDSFSLSMGLLRNKGIWLVTGVLLLMQLVIIYVPLMQSMFGTEALPLRYWFVTLVIGVAMFLVVEIEKRLTRRFRKTA

Functional annotations

Enzyme classification and Gene Ontology terms linked to this protein.

14 GO

Gene Ontology (GO)

14
  • GO:0005524 Binding to ATP, adenosine 5'-triphosphate, a universally important coenzyme and enzyme regulator.
  • GO:0016020 A lipid bilayer along with all the proteins and protein complexes embedded in it and attached to it.
  • GO:0005215 Enables the directed movement of substances (such as macromolecules, small molecules, ions) into, out of or within a cell, accross or in between cells.
  • GO:0000166 Binding to a nucleotide, any compound consisting of a nucleoside that is esterified with (ortho)phosphate or an oligophosphate at any hydroxyl group on the ribose or deoxyribose.
  • GO:0016887 Catalysis of the reaction: ATP + H2O = ADP + H+ phosphate. ATP hydrolysis is used in some reactions as an energy source, for example to catalyze a reaction or drive transport against a concentration gradient.
  • GO:0012505 A collection of membranous structures involved in transport within the cell. The main components of the endomembrane system are endoplasmic reticulum, Golgi bodies, vesicles, cell membrane and nuclear envelope. Members of the endomembrane system pass materials through each other or though the use of vesicles.
  • GO:0005886 The membrane surrounding a cell that separates the cell from its external environment. It consists of a phospholipid bilayer and associated proteins.
  • GO:0046872 Binding to a metal ion.
  • GO:0005391 Enables the transfer of a solute or solutes from one side of a membrane to the other according to the reaction: ATP + H2O + Na+(in) + K+(out) = ADP + phosphate + Na+(out) + K+(in).
  • GO:0030007 A homeostatic process involved in the maintenance of a steady state level of potassium ions within a cell.
  • GO:0006883 A homeostatic process involved in the maintenance of a steady state level of sodium ions within a cell.
  • GO:1990573 The directed movement of potassium ions from outside of a cell, across the plasma membrane and into the cytosol.
  • GO:1902600 The directed movement of a proton across a membrane.
  • GO:0036376 The directed movement of sodium ions from inside of a cell, across the plasma membrane and into the extracellular region.

Sequence domains and features

Domain and signature matches imported from InterPro and related databases.

83 records
Show feature table
Start End DB Term Name
837 847 Phobius NON_CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
311 718 SUPERFAMILY SSF56784 HAD-like
311 718 InterPro IPR036412 HAD-like superfamily
5 59 Pfam PF00690 Cation transporter/ATPase, N-terminus
5 59 InterPro IPR004014 Cation-transporting P-type ATPase, N-terminal
310 322 FunFam G3DSA:3.40.50.1000:FF:000001 Phospholipid-transporting ATPase IC
320 518 SUPERFAMILY SSF81660 Metal cation-transporting ATPase, ATP-binding domain N
320 518 InterPro IPR023299 P-type ATPase, cytoplasmic domain N
817 836 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
309 629 Pfam PF00702 haloacid dehalogenase-like hydrolase
747 769 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
104 212 SUPERFAMILY SSF81653 Calcium ATPase, transduction domain A
104 212 InterPro IPR008250 P-type ATPase, A domain superfamily
779 796 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
266 288 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
11 869 CDD cd02080 P-type_ATPase_cation
748 766 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
816 838 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
702 724 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
263 287 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
848 867 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
323 521 Gene3D G3DSA:3.40.1110.10 -
323 521 InterPro IPR023299 P-type ATPase, cytoplasmic domain N
868 879 Phobius CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
1 40 Phobius CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
676 700 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
9 877 SUPERFAMILY SSF81665 Calcium ATPase, transmembrane domain M
9 877 InterPro IPR023298 P-type ATPase, transmembrane domain superfamily
797 816 Phobius CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
67 85 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
701 705 Phobius NON_CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
69 85 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
767 777 Phobius NON_CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
315 321 ProSitePatterns PS00154 E1-E2 ATPases phosphorylation site.
315 321 InterPro IPR018303 P-type ATPase, phosphorylation site
295 668 SFLD SFLDF00027 p-type atpase
295 668 InterPro IPR044492 P-type ATPase, haloacid dehalogenase domain
229 251 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
615 631 PRINTS PR00120 H+-transporting ATPase (proton pump) signature
615 631 InterPro IPR001757 P-type ATPase
587 603 PRINTS PR00120 H+-transporting ATPase (proton pump) signature
587 603 InterPro IPR001757 P-type ATPase
784 805 PRINTS PR00120 H+-transporting ATPase (proton pump) signature
784 805 InterPro IPR001757 P-type ATPase
472 490 PRINTS PR00120 H+-transporting ATPase (proton pump) signature
472 490 InterPro IPR001757 P-type ATPase
647 672 PRINTS PR00120 H+-transporting ATPase (proton pump) signature
647 672 InterPro IPR001757 P-type ATPase
232 251 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
86 231 Phobius CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
252 262 Phobius NON_CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
848 867 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
2 65 SMART SM00831 Cation_ATPase_N_a_2
2 65 InterPro IPR004014 Cation-transporting P-type ATPase, N-terminal
5 866 PANTHER PTHR42861 CALCIUM-TRANSPORTING ATPASE
310 660 Gene3D G3DSA:3.40.50.1000 -
310 660 InterPro IPR023214 HAD superfamily
81 213 FunFam G3DSA:2.70.150.10:FF:000160 Sarcoplasmic/endoplasmic reticulum calcium ATPase 1
513 660 FunFam G3DSA:3.40.50.1000:FF:000028 Calcium-transporting P-type ATPase, putative
706 727 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
100 293 Pfam PF00122 E1-E2 ATPase
675 697 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
295 668 SFLD SFLDG00002 C1.7: P-type atpase like
64 68 Phobius NON_CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
71 333 NCBIfam TIGR01494 HAD-IC family P-type ATPase
71 333 InterPro IPR001757 P-type ATPase
583 708 NCBIfam TIGR01494 HAD-IC family P-type ATPase
583 708 InterPro IPR001757 P-type ATPase
41 63 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
700 871 Pfam PF00689 Cation transporting ATPase, C-terminus
700 871 InterPro IPR006068 Cation-transporting P-type ATPase, C-terminal
288 675 Phobius CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
41 63 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
11 213 Gene3D G3DSA:2.70.150.10 -
778 796 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
313 327 PRINTS PR00119 P-type cation-transporting ATPase superfamily signature
514 525 PRINTS PR00119 P-type cation-transporting ATPase superfamily signature
536 546 PRINTS PR00119 P-type cation-transporting ATPase superfamily signature
150 164 PRINTS PR00119 P-type cation-transporting ATPase superfamily signature
639 651 PRINTS PR00119 P-type cation-transporting ATPase superfamily signature
615 634 PRINTS PR00119 P-type cation-transporting ATPase superfamily signature
43 873 Gene3D G3DSA:1.20.1110.10 -
728 747 Phobius CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.

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 · FPocket

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

Site 1 FPocket #16
0.994
Unusual size
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Surrounding area
Site 2 FPocket #13
0.614
Likely same site as P2Rank 4 0.6 Å 9 shared residues 100% of smaller site
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Surrounding area

Binding pockets · P2Rank

Probability: high ≥ 0.5 · medium 0.2–0.49 · low < 0.2

Site 1 P2Rank #1
0.547
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Surrounding area
Site 2 P2Rank #2
0.423
Show in viewer
Surrounding area
Site 3 P2Rank #3
0.293
Show in viewer
Surrounding area
Site 4 P2Rank #4
0.22
Likely same site as FPocket 13 0.6 Å 9 shared residues 100% of smaller site
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Surrounding area
Site 5 P2Rank #5
0.21
Show in viewer
Surrounding area
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_A0A0H3GJR1
AlphaFold DB full sequence Viewing
ColabFold VK055_1980
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.

61 records
Chemistry signal

Structural and bioactivity evidence are both available for this target.

Direct evidence 0 same-protein records
Transferred evidence 11 records from similar proteins
Structural ligands 6 0 loaded crystals
Measured bioactivity 5 direct and transferred ChEMBL records
Proposed compounds 50 similarity-based ZINC candidates
Best available ligand signal
ACP PDB via homolog 505.2 Da · LogP -1.52 · TPSA 269.9 Open detail RCSB PDB
ALF PDB via homolog Detail RCSB PDB
BEF PDB via homolog Detail RCSB PDB
CZA PDB via homolog Detail RCSB PDB
MGF 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
ACP RCSB PDB P11607-2 505.2 Da LogP -1.52 TPSA 269.9 3 viol. ✓ Clean c1nc(c2c(n1)n(cn2)[C@H]3[C@@H]([C@@H]([C@H](O3)…
ALF RCSB PDB Q8Y8Q5 103.0 Da LogP 1.30 TPSA 0.0 ✓ Ro5 ✓ Clean F[Al-](F)(F)F
BEF RCSB PDB P16615 66.0 Da LogP 0.88 TPSA 0.0 ✓ Ro5 ✓ Clean [Be-](F)(F)F
CZA RCSB PDB P11607-2 336.4 Da LogP 2.83 TPSA 73.4 ✓ Ro5 ✓ Clean CC(=O)C1=C(N2[C@H](C1=O)[C@H]3c4c[nH]c5c4c(ccc5…
MGF RCSB PDB P11607-2 81.3 Da LogP 0.88 TPSA 0.0 ✓ Ro5 ✓ Clean F[Mg-](F)F
PCW RCSB PDB P16615-2 787.1 Da LogP 12.36 TPSA 108.4 2 viol. ✓ Clean CCCCCCCC\C=C/CCCCCCCC(=O)OC[C@H](CO[P@@](=O)(O)…

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.