Protein profile

PA0426

multidrug resistance protein MexB

Genome: NC_002516.2

Gene: PA0426 mexB Structure source: Experimental + AlphaFold UniProt P52002
Amino acids 1046
Annotations 10
Features 85
PDB binders 34
Druggability 0.758

Overview

Basic information about this protein and its source genome.

Accession
PA0426
Gene
PA0426 mexB
Status
annotated
Amino acids
1046
Structure source
Experimental + AlphaFold

Target profile

Computed evidence for target prioritization.

Human off-target
No hit
Gut microbiome off-target
hit
Essential (DEG)
Y
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 0.758
Structure
Pocket

Sequence

Primary amino-acid sequence viewer.

Functional Annotations

Enzyme classification and Gene Ontology terms linked to this protein.

10 GO

Gene Ontology (GO)

10
  • GO:1990281 A protein complex that is capable of efflux transmembrane transporter activity.
  • 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:0015562 Enables the transfer of a specific substance or related group of substances from the inside of the cell to the outside of the cell across a membrane.
  • GO:0042910 Enables the directed movement of a xenobiotic from one side of a membrane to the other. A xenobiotic is a compound foreign to the organism exposed to it. It may be synthesized by another organism (like ampicilin) or it can be a synthetic chemical.
  • GO:0046677 Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of an antibiotic stimulus. An antibiotic is a chemical substance produced by a microorganism which has the capacity to inhibit the growth of or to kill other microorganisms.
  • GO:0055085 The process in which a solute is transported across a lipid bilayer, from one side of a membrane to the other.
  • GO:0140330 A process that reduces or removes the toxicity of a xenobiotic by exporting it outside the cell through the outer membrane.
  • GO:0042908 The directed movement of a xenobiotic into, out of or within a cell, or between cells, by means of some agent such as a transporter or pore. A xenobiotic is a compound foreign to the organism exposed to it. It may be synthesized by another organism (like ampicilin) or it can be a synthetic chemical.
  • GO:0016020 A lipid bilayer along with all the proteins and protein complexes embedded in it and attached to it.
  • GO:0022857 Enables the transfer of a substance, usually a specific substance or a group of related substances, from one side of a membrane to the other.

Sequence Features

Domain/signature hits from InterPro and related databases.

85 records
Show feature table
Start End DB Term Name
726 814 Gene3D G3DSA:3.30.2090.10 Multidrug efflux transporter AcrB TolC docking domain; DN and DC subdomains
726 814 InterPro IPR027463 Multidrug efflux transporter AcrB TolC docking domain, DN/DC subdomains
1 1044 NCBIfam TIGR00915 efflux RND transporter permease subunit
1 1044 InterPro IPR004764 Multidrug resistance protein MdtF-like
135 330 SUPERFAMILY SSF82693 Multidrug efflux transporter AcrB pore domain; PN1, PN2, PC1 and PC2 subdomains
567 671 SUPERFAMILY SSF82693 Multidrug efflux transporter AcrB pore domain; PN1, PN2, PC1 and PC2 subdomains
369 391 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
572 673 Gene3D G3DSA:3.30.70.1430 Multidrug efflux transporter AcrB pore domain
1001 1027 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
340 359 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
10 32 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
892 897 Phobius CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
391 395 Phobius NON_CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
12 32 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
539 556 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
321 511 FunFam G3DSA:1.20.1640.10:FF:000001 Efflux pump membrane transporter
360 365 Phobius CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
396 416 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
572 673 FunFam G3DSA:3.30.70.1430:FF:000002 Efflux pump membrane transporter
494 538 Phobius CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
726 814 FunFam G3DSA:3.30.2090.10:FF:000002 Efflux pump membrane transporter
872 891 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
518 1025 Gene3D G3DSA:1.20.1640.10 Multidrug efflux transporter AcrB transmembrane domain
874 891 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
417 436 Phobius CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
558 873 Phobius NON_CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
470 493 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
1 1027 Pfam PF00873 AcrB/AcrD/AcrF family
1 1027 InterPro IPR001036 Acriflavin resistance protein
919 923 Phobius NON_CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
969 989 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
180 278 FunFam G3DSA:3.30.2090.10:FF:000001 Efflux pump membrane transporter
366 390 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
7 517 Gene3D G3DSA:1.20.1640.10 Multidrug efflux transporter AcrB transmembrane domain
437 458 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
38 130 SUPERFAMILY SSF82693 Multidrug efflux transporter AcrB pore domain; PN1, PN2, PC1 and PC2 subdomains
470 492 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
1005 1027 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
438 460 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
38 822 Gene3D G3DSA:3.30.70.1430 Multidrug efflux transporter AcrB pore domain
38 138 FunFam G3DSA:3.30.70.1430:FF:000001 Efflux pump membrane transporter
898 918 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
8 32 PRINTS PR00702 Acriflavin resistance protein family signature
8 32 InterPro IPR001036 Acriflavin resistance protein
363 384 PRINTS PR00702 Acriflavin resistance protein family signature
363 384 InterPro IPR001036 Acriflavin resistance protein
554 571 PRINTS PR00702 Acriflavin resistance protein family signature
554 571 InterPro IPR001036 Acriflavin resistance protein
623 637 PRINTS PR00702 Acriflavin resistance protein family signature
623 637 InterPro IPR001036 Acriflavin resistance protein
445 468 PRINTS PR00702 Acriflavin resistance protein family signature
445 468 InterPro IPR001036 Acriflavin resistance protein
36 54 PRINTS PR00702 Acriflavin resistance protein family signature
36 54 InterPro IPR001036 Acriflavin resistance protein
391 415 PRINTS PR00702 Acriflavin resistance protein family signature
391 415 InterPro IPR001036 Acriflavin resistance protein
470 493 PRINTS PR00702 Acriflavin resistance protein family signature
470 493 InterPro IPR001036 Acriflavin resistance protein
336 359 PRINTS PR00702 Acriflavin resistance protein family signature
336 359 InterPro IPR001036 Acriflavin resistance protein
990 1000 Phobius NON_CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
808 1027 SUPERFAMILY SSF82866 Multidrug efflux transporter AcrB transmembrane domain
925 947 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
1028 1046 Phobius CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
973 995 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
33 339 Phobius NON_CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
539 557 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
182 271 SUPERFAMILY SSF82714 Multidrug efflux transporter AcrB TolC docking domain; DN and DC subdomains
182 271 InterPro IPR027463 Multidrug efflux transporter AcrB TolC docking domain, DN/DC subdomains
924 948 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
180 278 Gene3D G3DSA:3.30.2090.10 Multidrug efflux transporter AcrB TolC docking domain; DN and DC subdomains
180 278 InterPro IPR027463 Multidrug efflux transporter AcrB TolC docking domain, DN/DC subdomains
340 359 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
2 1037 PANTHER PTHR32063 -
2 1037 InterPro IPR001036 Acriflavin resistance protein
724 811 SUPERFAMILY SSF82714 Multidrug efflux transporter AcrB TolC docking domain; DN and DC subdomains
724 811 InterPro IPR027463 Multidrug efflux transporter AcrB TolC docking domain, DN/DC subdomains
949 968 Phobius CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
1 11 Phobius CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
674 872 Gene3D G3DSA:3.30.70.1440 Multidrug efflux transporter AcrB pore domain
898 920 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
133 331 Gene3D G3DSA:3.30.70.1320 Multidrug efflux transporter AcrB pore domain like
459 469 Phobius NON_CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
857 1024 FunFam G3DSA:1.20.1640.10:FF:000002 Efflux pump membrane transporter
296 497 SUPERFAMILY SSF82866 Multidrug efflux transporter AcrB transmembrane domain

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 3W9I
X-ray 2.71 Å A,B,C,D,E,F
100.0% 1-1046
Viewing
PDB 6IIA
X-ray 2.91 Å A,B,C,D,E,F
100.0% 1-1046
Loaded
PDB 2V50
X-ray 3.00 Å A,B,C,D,E,F
100.0% 1-1046
Loaded
PDB 3W9J
X-ray 3.15 Å A,B,C,D,E,F
100.0% 1-1046
Loaded
AlphaFold PA0426
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
4 0.753
34 0.431
6 0.254

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 45.36 0.973
2 7.5 0.394
3 6.08 0.301
4 5.25 0.245
5 4.33 0.18

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.

137 records

Highest-confidence structural evidence: ligands co-crystallized with this exact protein. If the source PDB is loaded in TPW, use Open crystal to inspect it in the structure viewer.

Show only:
Ligand Source crystal MW · LogP · TPSA Lipinski PAINS SMILES
AV0 1005.2 Da LogP -1.68 TPSA 357.1 3 viol. ✓ Clean CCCCCCCCCCC(CCCCCCCCCC)(CO[C@H]1[C@@H]([C@H]([C…
LMT 510.6 Da LogP -0.45 TPSA 178.5 3 viol. ✓ Clean CCCCCCCCCCCCO[C@H]1[C@@H]([C@H]([C@@H]([C@H](O1…
P9D 693.8 Da LogP 0.91 TPSA 212.5 2 viol. ✓ Clean CC(C)(C)c1csc(n1)NC(=O)C2=CC3=NC(=C(C(=O)N3C=C2…

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.