Protein profile

PA5484

two-component sensor

Genome: NC_002516.2

Gene: PA5484 Structure source: Experimental + AlphaFold UniProt Q9HT87
Amino acids 595
Annotations 9
Features 64
PDB binders 4
Druggability 0.904

Overview

Basic information about this protein and its source genome.

Accession
PA5484
Gene
PA5484
Status
annotated
Amino acids
595
Structure source
Experimental + 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:0016791 Catalysis of the hydrolysis of a phosphoric monoester, releasing a phosphate. 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:0016020 A lipid bilayer along with all the proteins and protein complexes embedded in it and attached to it. 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.

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 0.904
Structure
Pocket

Sequence

Primary amino-acid sequence viewer.

Functional Annotations

Enzyme classification and Gene Ontology terms linked to this protein.

1 EC 8 GO

Enzyme Commission (EC)

1

Gene Ontology (GO)

8
  • 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:0016791 Catalysis of the hydrolysis of a phosphoric monoester, releasing a phosphate.
  • 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:0016020 A lipid bilayer along with all the proteins and protein complexes embedded in it and attached to it.
  • 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:0016772 Catalysis of the transfer of a phosphorus-containing group from one compound (donor) to another (acceptor).
  • 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.

Sequence Features

Domain/signature hits from InterPro and related databases.

64 records
Show feature table
Start End DB Term Name
1 12 Phobius SIGNAL_PEPTIDE_N_REGION N-terminal region of a signal peptide.
200 242 CDD cd06225 HAMP
447 595 Gene3D G3DSA:3.30.565.10 -
447 595 InterPro IPR036890 Histidine kinase/HSP90-like ATPase superfamily
42 160 Pfam PF16767 Sensor domain of alginate biosynthesis sensor protein KinB
42 160 InterPro IPR031909 Alginate biosynthesis sensor protein KinB, sensor domain
376 443 Pfam PF00512 His Kinase A (phospho-acceptor) domain
376 443 InterPro IPR003661 Signal transduction histidine kinase, dimerisation/phosphoacceptor domain
47 157 CDD cd19409 KinB_sensor
47 157 InterPro IPR031909 Alginate biosynthesis sensor protein KinB, sensor domain
33 41 Phobius SIGNAL_PEPTIDE_C_REGION C-terminal region of a signal peptide.
194 245 Gene3D G3DSA:1.10.8.500 HAMP domain in histidine kinase
258 323 SMART SM00091 pas_2
258 323 InterPro IPR000014 PAS domain
193 244 Pfam PF00672 HAMP domain
193 244 InterPro IPR003660 HAMP domain
489 595 SMART SM00387 HKATPase_4
489 595 InterPro IPR003594 Histidine kinase/HSP90-like ATPase
365 445 Gene3D G3DSA:1.10.287.130 -
267 366 CDD cd00130 PAS
267 366 InterPro IPR000014 PAS domain
360 443 SUPERFAMILY SSF47384 Homodimeric domain of signal transducing histidine kinase
360 443 InterPro IPR036097 Signal transduction histidine kinase, dimerisation/phosphoacceptor domain superfamily
39 168 Gene3D G3DSA:1.20.120.880 Histidine kinase (KinB), sensor domain
39 168 InterPro IPR038320 KinB, N-terminal domain superfamily
375 443 SMART SM00388 HisKA_10
375 443 InterPro IPR003661 Signal transduction histidine kinase, dimerisation/phosphoacceptor domain
246 367 SUPERFAMILY SSF55785 PYP-like sensor domain (PAS domain)
246 367 InterPro IPR035965 PAS domain superfamily
168 190 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
382 595 ProSiteProfiles PS50109 Histidine kinase domain profile.
382 595 InterPro IPR005467 Histidine kinase domain
491 594 Pfam PF02518 Histidine kinase-, DNA gyrase B-, and HSP90-like ATPase
491 594 InterPro IPR003594 Histidine kinase/HSP90-like ATPase
432 595 SUPERFAMILY SSF55874 ATPase domain of HSP90 chaperone/DNA topoisomerase II/histidine kinase
432 595 InterPro IPR036890 Histidine kinase/HSP90-like ATPase superfamily
195 247 SMART SM00304 HAMP_11
195 247 InterPro IPR003660 HAMP domain
494 593 CDD cd00075 HATPase
264 370 Pfam PF08448 PAS fold
264 370 InterPro IPR013656 PAS fold-4
195 247 ProSiteProfiles PS50885 HAMP domain profile.
1 41 Phobius SIGNAL_PEPTIDE Signal peptide region
448 595 FunFam G3DSA:3.30.565.10:FF:000006 Sensor histidine kinase WalK
195 245 SUPERFAMILY SSF158472 HAMP domain-like
42 167 Phobius NON_CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
13 35 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
5 594 PANTHER PTHR44936 SENSOR PROTEIN CREC
373 439 CDD cd00082 HisKA
373 439 InterPro IPR003661 Signal transduction histidine kinase, dimerisation/phosphoacceptor domain
247 364 Gene3D G3DSA:3.30.450.20 PAS domain
257 373 NCBIfam TIGR00229 PAS domain S-box protein
257 373 InterPro IPR000014 PAS domain
168 188 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
526 540 PRINTS PR00344 Bacterial sensor protein C-terminal signature
526 540 InterPro IPR004358 Signal transduction histidine kinase-related protein, C-terminal
581 594 PRINTS PR00344 Bacterial sensor protein C-terminal signature
581 594 InterPro IPR004358 Signal transduction histidine kinase-related protein, C-terminal
557 575 PRINTS PR00344 Bacterial sensor protein C-terminal signature
557 575 InterPro IPR004358 Signal transduction histidine kinase-related protein, C-terminal
544 554 PRINTS PR00344 Bacterial sensor protein C-terminal signature
544 554 InterPro IPR004358 Signal transduction histidine kinase-related protein, C-terminal
13 32 Phobius SIGNAL_PEPTIDE_H_REGION Hydrophobic region of a signal peptide.
189 595 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; predicted models typically cover the full protein.

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Structural evidence

4 + 1

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

Entry Method Resolution Chain Coverage Links Status
PDB 4LLE
X-ray 1.68 Å A,B,C,D
21.5% 41-168
Viewing
PDB 4LLC
X-ray 2.00 Å A,B
21.5% 41-168
Loaded
PDB 3N24
X-ray 2.06 Å A,B,C,D,E,F,G,H
21.5% 41-168
Loaded
PDB 3L34
X-ray 1.70 Å A,B,C,D,E,F,G,H
21.3% 42-168
Loaded
AlphaFold PA5484
AlphaFold full sequence Loaded
Pocket details FPocket · P2Rank — toggle visibility and zoom from here, or open full viewer

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
3 0.904
1 0.388

Pockets (P2RANK)

Showing top-ranked P2Rank candidates by probability. Probability is color-coded per P2Rank calibration: high (≥ 0.5), medium (0.2 – 0.49), low (< 0.2).

P2RANK Sticks Spheres Surfaces Score Probability Labels Zoom Positions
1 1.53 0.022

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)…
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
PG0 P71815 120.1 Da LogP -0.36 TPSA 38.7 ✓ Ro5 ✓ Clean COCCOCCO

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.