Protein profile

PA4546

two-component sensor PilS

Genome: NC_002516.2

Gene: PA4546 pilS Structure source: AlphaFold UniProt P33639
Amino acids 530
Annotations 8
Features 49
PDB binders 4
Druggability 0.751

Overview

Basic information about this protein and its source genome.

Accession
PA4546
Gene
PA4546 pilS
Status
annotated
Amino acids
530
Structure source
AlphaFold
GO
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:0005524 Binding to ATP, adenosine 5'-triphosphate, a universally important coenzyme and enzyme regulator. GO:0000155 Catalysis of the phosphorylation of a histidine residue in response to detection of an extracellular signal such as a chemical ligand or change in environment, to initiate a change in cell state or activity. The two-component sensor is a histidine kinase that autophosphorylates a histidine residue in its active site. The phosphate is then transferred to an aspartate residue in a downstream response regulator, to trigger a response. GO:0060491 Any process that modulates the rate, frequency, or extent of cell projection assembly. GO:0007165 The cellular process in which a signal is conveyed to trigger a change in the activity or state of a cell. Signal transduction begins with reception of a signal (e.g. a ligand binding to a receptor or receptor activation by a stimulus such as light), or for signal transduction in the absence of ligand, signal-withdrawal or the activity of a constitutively active receptor. Signal transduction ends with regulation of a downstream cellular process, e.g. regulation of transcription or regulation of a metabolic process. Signal transduction covers signaling from receptors located on the surface of the cell and signaling via molecules located within the cell. For signaling between cells, signal transduction is restricted to events at and within the receiving cell. GO:0016310 The process of introducing a phosphate group into a molecule, usually with the formation of a phosphoric ester, a phosphoric anhydride or a phosphoric amide.

Target profile

Computed evidence for target prioritization.

Human off-target
No hit
Gut microbiome off-target
hit
Essential (DEG)
N
Localization
CytoplasmicMembrane

Selected Druggability evidence

Selected Druggability is the FPocket score chosen for ranking using the curated structure priority. The 3D viewer may show a different loaded structure, so its visible pockets can differ.

FPocket 0.751
Structure
Pocket

Sequence

Primary amino-acid sequence viewer.

MRAERLRLSEEQGQRILRLYHLYRLTIGLVLVLLISSELEDQVLKLVHPELFHVGSWCYLVFNILVALFLPPSRQLLPIFILALTDVLMLCGLFYAGGGVPSGIGSLLVVAVAIANILLRGRIGLVIAAAASLGLLYLTFFLSLSSPDATNHYVQAGGLGTLCFAAALVIQALVRRQEQTETLAEERAETVANLEELNALILQRMRTGILVVDSRQAILLANQAALGLLRQDDVQGASLGRHSPMLMHCMKQWRLNPSLRPPTLKVVPDGPTVQPSFISLNREDDQHVLIFLEDISQIAQQAQQMKLAGLGRLTAGIAHEIRNPLGAISHAAQLLQESEELDAPDRRLTQIIQDQSKRMNLVIENVLQLSRRRQAEPQQLDLKEWLQRFVDEYPGRLRNDSQLHLQLGAGDIQTRMDPHQLNQVLSNLVQNGLRYSAQAHGRGQVWLSLARDPESDLPVLEVIDDGPGVPADKLNNLFEPFFTTESKGTGLGLYLSRELCESNQARIDYRNREEGGGCFRITFAHPRKLS

Functional Annotations

Enzyme classification and Gene Ontology terms linked to this protein.

1 EC 7 GO

Enzyme Commission (EC)

1

Gene Ontology (GO)

7
  • 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:0005524 Binding to ATP, adenosine 5'-triphosphate, a universally important coenzyme and enzyme regulator.
  • GO:0000155 Catalysis of the phosphorylation of a histidine residue in response to detection of an extracellular signal such as a chemical ligand or change in environment, to initiate a change in cell state or activity. The two-component sensor is a histidine kinase that autophosphorylates a histidine residue in its active site. The phosphate is then transferred to an aspartate residue in a downstream response regulator, to trigger a response.
  • GO:0060491 Any process that modulates the rate, frequency, or extent of cell projection assembly.
  • GO:0007165 The cellular process in which a signal is conveyed to trigger a change in the activity or state of a cell. Signal transduction begins with reception of a signal (e.g. a ligand binding to a receptor or receptor activation by a stimulus such as light), or for signal transduction in the absence of ligand, signal-withdrawal or the activity of a constitutively active receptor. Signal transduction ends with regulation of a downstream cellular process, e.g. regulation of transcription or regulation of a metabolic process. Signal transduction covers signaling from receptors located on the surface of the cell and signaling via molecules located within the cell. For signaling between cells, signal transduction is restricted to events at and within the receiving cell.
  • GO:0016310 The process of introducing a phosphate group into a molecule, usually with the formation of a phosphoric ester, a phosphoric anhydride or a phosphoric amide.
  • GO:0016772 Catalysis of the transfer of a phosphorus-containing group from one compound (donor) to another (acceptor).

Sequence Features

Domain/signature hits from InterPro and related databases.

49 records
Show feature table
Start End DB Term Name
169 523 PANTHER PTHR43065 SENSOR HISTIDINE KINASE
76 98 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
126 146 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
417 523 Pfam PF02518 Histidine kinase-, DNA gyrase B-, and HSP90-like ATPase
417 523 InterPro IPR003594 Histidine kinase/HSP90-like ATPase
21 39 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
316 527 ProSiteProfiles PS50109 Histidine kinase domain profile.
316 527 InterPro IPR005467 Histidine kinase domain
120 125 Phobius CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
71 76 Phobius CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
184 305 Gene3D G3DSA:3.30.450.20 PAS domain
306 373 Gene3D G3DSA:1.10.287.130 -
124 142 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
152 174 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
175 530 Phobius CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
309 375 SMART SM00388 HisKA_10
309 375 InterPro IPR003661 Signal transduction histidine kinase, dimerisation/phosphoacceptor domain
52 69 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
20 37 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
152 174 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
310 373 Pfam PF00512 His Kinase A (phospho-acceptor) domain
310 373 InterPro IPR003661 Signal transduction histidine kinase, dimerisation/phosphoacceptor domain
310 371 CDD cd00082 HisKA
310 371 InterPro IPR003661 Signal transduction histidine kinase, dimerisation/phosphoacceptor domain
416 527 SMART SM00387 HKATPase_4
416 527 InterPro IPR003594 Histidine kinase/HSP90-like ATPase
365 523 SUPERFAMILY SSF55874 ATPase domain of HSP90 chaperone/DNA topoisomerase II/histidine kinase
365 523 InterPro IPR036890 Histidine kinase/HSP90-like ATPase superfamily
196 260 SMART SM00091 pas_2
196 260 InterPro IPR000014 PAS domain
51 70 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
97 101 Phobius NON_CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
298 372 SUPERFAMILY SSF47384 Homodimeric domain of signal transducing histidine kinase
298 372 InterPro IPR036097 Signal transduction histidine kinase, dimerisation/phosphoacceptor domain superfamily
376 528 Gene3D G3DSA:3.30.565.10 -
376 528 InterPro IPR036890 Histidine kinase/HSP90-like ATPase superfamily
1 20 Phobius CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
102 119 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
102 119 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
302 373 FunFam G3DSA:1.10.287.130:FF:000057 Type IV pilus sensor protein PilS
40 50 Phobius NON_CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
77 96 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
147 151 Phobius NON_CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
487 505 PRINTS PR00344 Bacterial sensor protein C-terminal signature
487 505 InterPro IPR004358 Signal transduction histidine kinase-related protein, C-terminal
458 472 PRINTS PR00344 Bacterial sensor protein C-terminal signature
458 472 InterPro IPR004358 Signal transduction histidine kinase-related protein, C-terminal
476 486 PRINTS PR00344 Bacterial sensor protein C-terminal signature
476 486 InterPro IPR004358 Signal transduction histidine kinase-related protein, C-terminal

3D Structure

Selected loaded structure. Experimental PDB entries may cover only a portion of the sequence; predicted models typically cover the full protein.

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Structural evidence

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Experimental PDB entries and predicted models. Click Switch to display a different structure in the viewer.

Entry Method Resolution Chain Coverage Links Status
AlphaFold PA4546
AlphaFold full sequence Viewing
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Pockets (FPOCKET)

Showing top-ranked FPocket candidates by druggability. Druggability is color-coded: high (0.7 or higher), medium (0.4 to 0.69), low (below 0.4).

FPOCKET Sticks Spheres Surfaces Druggability Labels Zoom Positions
1 0.751
2 0.412
22 0.347

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.

54 records

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
ANP P0AE82 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)…
C2E Q9X688 690.4 Da LogP -3.05 TPSA 349.6 3 viol. ✓ Clean c1nc2c(n1[C@H]3[C@@H]([C@H]4[C@H](O3)CO[P@@](=O…
EMC Q9X180 229.7 Da LogP 0.97 TPSA 0.0 ✓ Ro5 ✓ Clean CC[Hg+]
EMT Q9X180 382.8 Da LogP 2.91 TPSA 37.3 ✓ Ro5 ✓ Clean CC[Hg]Sc1ccccc1C(=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.