Protein profile

PA4112

sensor/response regulator hybrid protein

Genome: NC_002516.2

Gene: PA4112 Structure source: AlphaFold UniProt Q9HWR8
Amino acids 1417
Annotations 10
Features 132
PDB binders 8
Druggability 0.9

Overview

Basic information about this protein and its source genome.

Accession
PA4112
Gene
PA4112
Status
annotated
Amino acids
1417
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:0006355 Any process that modulates the frequency, rate or extent of cellular DNA-templated transcription. GO:0000160 A conserved series of molecular signals found in prokaryotes and eukaryotes; involves autophosphorylation of a histidine kinase and the transfer of the phosphate group to an aspartate that then acts as a phospho-donor to response regulator proteins. 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 0.9
Structure
Pocket

Sequence

Primary amino-acid sequence viewer.

Functional Annotations

Enzyme classification and Gene Ontology terms linked to this protein.

1 EC 9 GO

Enzyme Commission (EC)

1

Gene Ontology (GO)

9
  • 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:0006355 Any process that modulates the frequency, rate or extent of cellular DNA-templated transcription.
  • GO:0000160 A conserved series of molecular signals found in prokaryotes and eukaryotes; involves autophosphorylation of a histidine kinase and the transfer of the phosphate group to an aspartate that then acts as a phospho-donor to response regulator proteins.
  • 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:0005515 Binding to a protein.
  • 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.

132 records
Show feature table
Start End DB Term Name
1 12 Phobius SIGNAL_PEPTIDE_N_REGION N-terminal region of a signal peptide.
638 741 CDD cd00130 PAS
638 741 InterPro IPR000014 PAS domain
744 764 Coils Coil Coil
13 24 Phobius SIGNAL_PEPTIDE_H_REGION Hydrophobic region of a signal peptide.
334 488 Gene3D G3DSA:3.30.450.20 PAS domain
1010 1134 ProSiteProfiles PS50110 Response regulatory domain profile.
1010 1134 InterPro IPR001789 Signal transduction response regulator, receiver domain
952 970 PRINTS PR00344 Bacterial sensor protein C-terminal signature
952 970 InterPro IPR004358 Signal transduction histidine kinase-related protein, C-terminal
935 945 PRINTS PR00344 Bacterial sensor protein C-terminal signature
935 945 InterPro IPR004358 Signal transduction histidine kinase-related protein, C-terminal
917 931 PRINTS PR00344 Bacterial sensor protein C-terminal signature
917 931 InterPro IPR004358 Signal transduction histidine kinase-related protein, C-terminal
976 989 PRINTS PR00344 Bacterial sensor protein C-terminal signature
976 989 InterPro IPR004358 Signal transduction histidine kinase-related protein, C-terminal
77 267 SMART SM01079 CHASE_2
77 267 InterPro IPR006189 CHASE domain
1003 1096 PANTHER PTHR45339 HYBRID SIGNAL TRANSDUCTION HISTIDINE KINASE J
571 623 ProSiteProfiles PS50113 PAC domain profile.
571 623 InterPro IPR000700 PAS-associated, C-terminal
626 696 SMART SM00091 pas_2
626 696 InterPro IPR000014 PAS domain
491 559 SMART SM00091 pas_2
491 559 InterPro IPR000014 PAS domain
345 411 SMART SM00091 pas_2
345 411 InterPro IPR000014 PAS domain
881 990 CDD cd16922 HATPase_EvgS-ArcB-TorS-like
1256 1378 SUPERFAMILY SSF47226 Histidine-containing phosphotransfer domain, HPT domain
1256 1378 InterPro IPR036641 HPT domain superfamily
699 743 Gene3D G3DSA:2.10.70.100 -
1161 1270 Pfam PF00072 Response regulator receiver domain
1161 1270 InterPro IPR001789 Signal transduction response regulator, receiver domain
1012 1129 Pfam PF00072 Response regulator receiver domain
1012 1129 InterPro IPR001789 Signal transduction response regulator, receiver domain
415 469 ProSiteProfiles PS50113 PAC domain profile.
415 469 InterPro IPR000700 PAS-associated, C-terminal
1306 1408 SMART SM00073 hpt_2
1306 1408 InterPro IPR008207 Signal transduction histidine kinase, phosphotransfer (Hpt) domain
751 830 FunFam G3DSA:1.10.287.130:FF:000002 Two-component osmosensing histidine kinase
344 450 SUPERFAMILY SSF55785 PYP-like sensor domain (PAS domain)
344 450 InterPro IPR035965 PAS domain superfamily
1160 1273 CDD cd17546 REC_hyHK_CKI1_RcsC-like
828 996 Gene3D G3DSA:3.30.565.10 -
828 996 InterPro IPR036890 Histidine kinase/HSP90-like ATPase superfamily
346 457 Pfam PF00989 PAS fold
346 457 InterPro IPR013767 PAS fold
25 29 Phobius SIGNAL_PEPTIDE_C_REGION C-terminal region of a signal peptide.
491 624 Gene3D G3DSA:3.30.450.20 PAS domain
701 753 ProSiteProfiles PS50113 PAC domain profile.
701 753 InterPro IPR000700 PAS-associated, C-terminal
699 745 FunFam G3DSA:2.10.70.100:FF:000001 Sensory transduction histidine kinase
30 310 Phobius NON_CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
748 830 SUPERFAMILY SSF47384 Homodimeric domain of signal transducing histidine kinase
748 830 InterPro IPR036097 Signal transduction histidine kinase, dimerisation/phosphoacceptor domain superfamily
354 457 CDD cd00130 PAS
354 457 InterPro IPR000014 PAS domain
1158 1283 Gene3D G3DSA:3.40.50.2300 -
460 480 Coils Coil Coil
80 264 Pfam PF03924 CHASE domain
80 264 InterPro IPR006189 CHASE domain
828 994 FunFam G3DSA:3.30.565.10:FF:000010 Sensor histidine kinase RcsC
1301 1403 Gene3D G3DSA:1.20.120.160 HPT domain
1301 1403 InterPro IPR036641 HPT domain superfamily
343 414 ProSiteProfiles PS50112 PAS repeat profile.
343 414 InterPro IPR000014 PAS domain
495 543 ProSiteProfiles PS50112 PAS repeat profile.
495 543 InterPro IPR000014 PAS domain
1 29 Phobius SIGNAL_PEPTIDE Signal peptide region
77 293 ProSiteProfiles PS50839 CHASE domain profile.
77 293 InterPro IPR006189 CHASE domain
1315 1405 CDD cd00088 HPT
1315 1405 InterPro IPR008207 Signal transduction histidine kinase, phosphotransfer (Hpt) domain
311 329 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
34 54 Coils Coil Coil
771 825 CDD cd00082 HisKA
771 825 InterPro IPR003661 Signal transduction histidine kinase, dimerisation/phosphoacceptor domain
764 829 SMART SM00388 HisKA_10
764 829 InterPro IPR003661 Signal transduction histidine kinase, dimerisation/phosphoacceptor domain
876 991 Pfam PF02518 Histidine kinase-, DNA gyrase B-, and HSP90-like ATPase
876 991 InterPro IPR003594 Histidine kinase/HSP90-like ATPase
1011 1130 CDD cd17546 REC_hyHK_CKI1_RcsC-like
504 621 SUPERFAMILY SSF55785 PYP-like sensor domain (PAS domain)
504 621 InterPro IPR035965 PAS domain superfamily
702 744 SMART SM00086 pac_2
702 744 InterPro IPR001610 PAC motif
418 460 SMART SM00086 pac_2
418 460 InterPro IPR001610 PAC motif
572 614 SMART SM00086 pac_2
572 614 InterPro IPR001610 PAC motif
1315 1397 Pfam PF01627 Hpt domain
1315 1397 InterPro IPR008207 Signal transduction histidine kinase, phosphotransfer (Hpt) domain
876 992 SMART SM00387 HKATPase_4
876 992 InterPro IPR003594 Histidine kinase/HSP90-like ATPase
744 827 Gene3D G3DSA:1.10.287.130 -
764 829 Pfam PF00512 His Kinase A (phospho-acceptor) domain
1155 1279 SUPERFAMILY SSF52172 CheY-like
1155 1279 InterPro IPR011006 CheY-like superfamily
503 613 Pfam PF13426 PAS domain
503 613 InterPro IPR000014 PAS domain
771 992 ProSiteProfiles PS50109 Histidine kinase domain profile.
771 992 InterPro IPR005467 Histidine kinase domain
611 742 SUPERFAMILY SSF55785 PYP-like sensor domain (PAS domain)
611 742 InterPro IPR035965 PAS domain superfamily
504 611 CDD cd00130 PAS
504 611 InterPro IPR000014 PAS domain
500 620 NCBIfam TIGR00229 PAS domain S-box protein
500 620 InterPro IPR000014 PAS domain
637 751 NCBIfam TIGR00229 PAS domain S-box protein
637 751 InterPro IPR000014 PAS domain
343 466 NCBIfam TIGR00229 PAS domain S-box protein
343 466 InterPro IPR000014 PAS domain
1158 1273 SMART SM00448 REC_2
1158 1273 InterPro IPR001789 Signal transduction response regulator, receiver domain
1009 1130 SMART SM00448 REC_2
1009 1130 InterPro IPR001789 Signal transduction response regulator, receiver domain
649 738 Pfam PF08447 PAS fold
649 738 InterPro IPR013655 PAS fold-3
81 295 Gene3D G3DSA:3.30.450.350 CHASE domain
81 295 InterPro IPR042240 CHASE domain superfamily
1009 1157 Gene3D G3DSA:3.40.50.2300 -
13 35 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
1159 1277 ProSiteProfiles PS50110 Response regulatory domain profile.
1159 1277 InterPro IPR001789 Signal transduction response regulator, receiver domain
1007 1135 SUPERFAMILY SSF52172 CheY-like
1007 1135 InterPro IPR011006 CheY-like superfamily
330 1417 Phobius CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
1309 1411 ProSiteProfiles PS50894 Histidine-containing phosphotransfer (HPt) domain profile.
1309 1411 InterPro IPR008207 Signal transduction histidine kinase, phosphotransfer (Hpt) domain
818 988 SUPERFAMILY SSF55874 ATPase domain of HSP90 chaperone/DNA topoisomerase II/histidine kinase
818 988 InterPro IPR036890 Histidine kinase/HSP90-like ATPase superfamily
625 697 Gene3D G3DSA:3.30.450.20 PAS domain

3D Structure

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

3D visualization script Full viewer

Loading 3D structure...

Legend High Medium Low

Structural evidence

0 + 1

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

Entry Method Resolution Chain Coverage Links Status
AlphaFold PA4112
AlphaFold full sequence Viewing
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
1 0.417

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

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 Q9ABT2 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)…
BTB P0AEC6 209.2 Da LogP -3.01 TPSA 104.4 ✓ Ro5 ✓ Clean C(CO)N(CCO)C(CO)(CO)CO
EMU Q9C5U0 225.3 Da LogP 1.96 TPSA 66.5 ✓ Ro5 ✓ Clean c1ccc(cc1)CNc2c3c([nH]cn3)ncn2
H35 Q9C5U0 215.2 Da LogP 1.56 TPSA 79.6 ✓ Ro5 ✓ Clean c1cc(oc1)CNc2c3c(nc[nH]3)ncn2
MLI Q9C5U0 102.0 Da LogP -3.12 TPSA 80.3 ✓ Ro5 ✓ Clean C(C(=O)[O-])C(=O)[O-]
PG5 Q5UZS4 178.2 Da LogP 0.31 TPSA 36.9 ✓ Ro5 ✓ Clean COCCOCCOCCOC
WA2 Q9C5U0 221.3 Da LogP 0.78 TPSA 86.7 ✓ Ro5 ✓ Clean C[C@H](CCNc1c2c(nc[nH]2)ncn1)CO
ZIP Q9C5U0 203.2 Da LogP 1.73 TPSA 66.5 ✓ Ro5 ✓ Clean CC(=CCNc1c2c([nH]cn2)ncn1)C

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.