Protein profile

KP13_00148

putative purine permease

Genome: KpKP13

Gene: AHE42068.1 Structure source: AlphaFold + ColabFold UniProt A0A0H3GXG8

Export view

Amino acids 463

Annotations 5

Features 42

PDB binders 4

Druggability 0.863

Overview

Basic information about this protein and its source genome.

Accession: KP13_00148
Assembly: Klebsiella pneumoniae subsp. pneumoniae Kp13, complete sequence
Gene: AHE42068.1
Status: annotated
Amino acids: 463
Structure source: AlphaFold + ColabFold

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. GO:0055085 The process in which a solute is transported across a lipid bilayer, from one side of a membrane to the other. 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:0042907 Enables the transfer of xanthine from one side of a membrane to the other. Xanthine (2,6-dihydroxypurine) is a purine formed in the metabolic breakdown of guanine, but is not present in nucleic acids.

Target profile

Computed evidence for target prioritization.

Human off-target: hit
Human identity (%): 27.778
Human E-value: 9.48e-08
Gut microbiome off-target: hit
Essential (DEG): N
DEG identity (%): 0.0
Localization: CytoplasmicMembrane
ColabFold pLDDT: 89.92

Selected Druggability evidence

AlphaFold / UniProt model

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 0.863

Structure A0A0H3GXG8

Pocket Pocket 20

P2Rank 0.788

Structure A0A0H3GXG8

Pocket Pocket 1

ColabFold model

FPocket 0.702 · Pocket 21

P2Rank 0.824 · Pocket 1

Core conservation Conserved core gene

Roary core

CoreCruncher core

Gut microbiome 265 / 4744 genomes with a hit

Normalized 0.056

Sequence

Primary amino-acid sequence viewer.

Functional Annotations

Enzyme classification and Gene Ontology terms linked to this protein.

5 GO

Gene Ontology (GO)

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.
GO:0055085 The process in which a solute is transported across a lipid bilayer, from one side of a membrane to the other.
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:0042907 Enables the transfer of xanthine from one side of a membrane to the other. Xanthine (2,6-dihydroxypurine) is a purine formed in the metabolic breakdown of guanine, but is not present in nucleic acids.

Sequence Features

Domain/signature hits from InterPro and related databases.

42 records

Show feature table

Start	End	DB	Term	Name
373	377	Phobius	NON_CYTOPLASMIC_DOMAIN	Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
213	218	Phobius	CYTOPLASMIC_DOMAIN	Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
407	429	TMHMM	TMhelix	Region of a membrane-bound protein predicted to be embedded in the membrane.
240	258	Phobius	NON_CYTOPLASMIC_DOMAIN	Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
428	438	Phobius	NON_CYTOPLASMIC_DOMAIN	Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
193	212	Phobius	TRANSMEMBRANE	Region of a membrane-bound protein predicted to be embedded in the membrane.
35	454	NCBIfam	NF037981	purine/pyrimidine permease
193	212	TMHMM	TMhelix	Region of a membrane-bound protein predicted to be embedded in the membrane.
219	239	Phobius	TRANSMEMBRANE	Region of a membrane-bound protein predicted to be embedded in the membrane.
90	112	TMHMM	TMhelix	Region of a membrane-bound protein predicted to be embedded in the membrane.
261	283	TMHMM	TMhelix	Region of a membrane-bound protein predicted to be embedded in the membrane.
156	178	TMHMM	TMhelix	Region of a membrane-bound protein predicted to be embedded in the membrane.
439	458	Phobius	TRANSMEMBRANE	Region of a membrane-bound protein predicted to be embedded in the membrane.
378	396	Phobius	TRANSMEMBRANE	Region of a membrane-bound protein predicted to be embedded in the membrane.
127	149	TMHMM	TMhelix	Region of a membrane-bound protein predicted to be embedded in the membrane.
1	35	Phobius	NON_CYTOPLASMIC_DOMAIN	Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
346	368	TMHMM	TMhelix	Region of a membrane-bound protein predicted to be embedded in the membrane.
378	400	TMHMM	TMhelix	Region of a membrane-bound protein predicted to be embedded in the membrane.
259	280	Phobius	TRANSMEMBRANE	Region of a membrane-bound protein predicted to be embedded in the membrane.
29	457	NCBIfam	TIGR00801	NCS2 family nucleobase:cation symporter
29	457	InterPro	IPR006042	Xanthine/uracil permease
397	407	Phobius	CYTOPLASMIC_DOMAIN	Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
459	463	Phobius	CYTOPLASMIC_DOMAIN	Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
182	192	Phobius	NON_CYTOPLASMIC_DOMAIN	Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
439	458	TMHMM	TMhelix	Region of a membrane-bound protein predicted to be embedded in the membrane.
16	462	PANTHER	PTHR42810	PURINE PERMEASE C1399.01C-RELATED
158	181	Phobius	TRANSMEMBRANE	Region of a membrane-bound protein predicted to be embedded in the membrane.
36	58	Phobius	TRANSMEMBRANE	Region of a membrane-bound protein predicted to be embedded in the membrane.
90	127	Phobius	NON_CYTOPLASMIC_DOMAIN	Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
281	349	Phobius	CYTOPLASMIC_DOMAIN	Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
408	427	Phobius	TRANSMEMBRANE	Region of a membrane-bound protein predicted to be embedded in the membrane.
375	395	ProSitePatterns	PS01116	Xanthine/uracil permeases family signature.
375	395	InterPro	IPR006042	Xanthine/uracil permease
70	89	Phobius	TRANSMEMBRANE	Region of a membrane-bound protein predicted to be embedded in the membrane.
350	372	Phobius	TRANSMEMBRANE	Region of a membrane-bound protein predicted to be embedded in the membrane.
147	157	Phobius	CYTOPLASMIC_DOMAIN	Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
128	146	Phobius	TRANSMEMBRANE	Region of a membrane-bound protein predicted to be embedded in the membrane.
43	65	TMHMM	TMhelix	Region of a membrane-bound protein predicted to be embedded in the membrane.
34	426	Pfam	PF00860	Permease family
34	426	InterPro	IPR006043	Nucleobase cation symporter 2 family
219	241	TMHMM	TMhelix	Region of a membrane-bound protein predicted to be embedded in the membrane.
59	69	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.

Loading 3D structure...

Legend High Medium Low

Structural evidence

0 + 2

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

Entry	Method	Resolution	Chain	Coverage	Links	Status
AlphaFold AF_A0A0H3GXG8	AlphaFold	—	—	full sequence	—	Viewing
ColabFold KP13_00148	ColabFold	—	—	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
24				0.586
9				0.402
12				0.326

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	Score	Probability
1	10.76	0.577
2	8.34	0.444
3	2.88	0.092
4	1.67	0.028

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
21				0.702
4				0.355
24				0.247

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	Score	Probability
1	11.49	0.613
2	7.67	0.405
3	3.35	0.119
4	1.3	0.014

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

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.

No PDB structure with a co-crystallized ligand found for this exact protein.

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.

Ligand	Source crystal	UniProt (homolog)	MW · LogP · TPSA	Lipinski	PAINS	SMILES
KEG	5XLS	P0AGM8	—	—	—	`O=[W]1234O[W]567(=O)O18[P]91O%10%11[W]%12%13(=O…`
LMT	5I6C	Q07307	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…`
URA	5XLS	P0AGM8	112.1 Da LogP -0.94 TPSA 65.7	✓ Ro5	✓ Clean	`C1=CNC(=O)NC1=O`
XAN	5I6C	Q07307	152.1 Da LogP -1.06 TPSA 94.4	✓ Ro5	✓ Clean	`c1[nH]c2c(n1)C(=O)NC(=O)N2`

Experimental bioactivity from ChEMBL measured directly on this protein. Score = pchembl (−log Ki/IC₅₀; higher = more potent).

No ChEMBL bioactivity data found for this exact protein.

Bioactivity inferred from similar proteins in ChEMBL. Score = pchembl (−log Ki/IC₅₀; higher = more potent).

No ChEMBL hits found through similar proteins.

Proposed virtual-screening candidates from ZINC. Score = Tanimoto similarity to a known binder (0–1; higher = more similar).

Ligand	Tanimoto	MW · LogP · TPSA	Lipinski	PAINS	SMILES
ZINC100053689	1.000	482.6 Da LogP -1.23 TPSA 178.5	2 viol.	✓ Clean	`CCCCCCCCCCO[C@H]1O[C@H](CO)[C@@H](O[C@H]2O[C@H]…`
ZINC100053691	1.000	496.6 Da LogP -0.84 TPSA 178.5	2 viol.	✓ Clean	`CCCCCCCCCCCO[C@H]1O[C@H](CO)[C@@H](O[C@H]2O[C@H…`
ZINC1501015302	1.000	482.6 Da LogP -1.23 TPSA 178.5	2 viol.	✓ Clean	`CCCCCCCCCCO[C@@H]1O[C@H](CO)[C@@H](O[C@H]2O[C@H…`
ZINC2039285652	1.000	454.5 Da LogP -2.01 TPSA 178.5	2 viol.	✓ Clean	`CCCCCCCCO[C@H]1O[C@H](CO)[C@H](O[C@@H]2O[C@H](C…`
ZINC2039285653	1.000	454.5 Da LogP -2.01 TPSA 178.5	2 viol.	✓ Clean	`CCCCCCCCO[C@H]1O[C@H](CO)[C@H](O[C@@H]2O[C@H](C…`
ZINC2039285654	1.000	454.5 Da LogP -2.01 TPSA 178.5	2 viol.	✓ Clean	`CCCCCCCCO[C@H]1O[C@H](CO)[C@H](O[C@@H]2O[C@H](C…`
ZINC2039285655	1.000	454.5 Da LogP -2.01 TPSA 178.5	2 viol.	✓ Clean	`CCCCCCCCO[C@H]1O[C@H](CO)[C@H](O[C@@H]2O[C@H](C…`
ZINC2053493146	1.000	482.6 Da LogP -1.23 TPSA 178.5	2 viol.	✓ Clean	`CCCCCCCCCCO[C@H]1O[C@H](CO)[C@H](O[C@@H]2O[C@H]…`
ZINC2053493147	1.000	482.6 Da LogP -1.23 TPSA 178.5	2 viol.	✓ Clean	`CCCCCCCCCCO[C@H]1O[C@H](CO)[C@H](O[C@@H]2O[C@H]…`
ZINC2053493148	1.000	482.6 Da LogP -1.23 TPSA 178.5	2 viol.	✓ Clean	`CCCCCCCCCCO[C@H]1O[C@H](CO)[C@H](O[C@@H]2O[C@H]…`
ZINC2053493149	1.000	482.6 Da LogP -1.23 TPSA 178.5	2 viol.	✓ Clean	`CCCCCCCCCCO[C@H]1O[C@H](CO)[C@H](O[C@@H]2O[C@H]…`
ZINC238809244	1.000	510.6 Da LogP -0.45 TPSA 178.5	3 viol.	✓ Clean	`CCCCCCCCCCCCO[C@@H]1O[C@H](CO)[C@@H](O[C@H]2O[C…`
ZINC238809245	1.000	510.6 Da LogP -0.45 TPSA 178.5	3 viol.	✓ Clean	`CCCCCCCCCCCCO[C@@H]1O[C@H](CO)[C@@H](O[C@H]2O[C…`
ZINC252695223	1.000	482.6 Da LogP -1.23 TPSA 178.5	2 viol.	✓ Clean	`CCCCCCCCCCO[C@@H]1O[C@H](CO)[C@@H](O[C@H]2O[C@H…`
ZINC252695224	1.000	482.6 Da LogP -1.23 TPSA 178.5	2 viol.	✓ Clean	`CCCCCCCCCCO[C@@H]1O[C@H](CO)[C@@H](O[C@H]2O[C@H…`
ZINC252695225	1.000	482.6 Da LogP -1.23 TPSA 178.5	2 viol.	✓ Clean	`CCCCCCCCCCO[C@@H]1O[C@H](CO)[C@@H](O[C@H]2O[C@H…`
ZINC252695226	1.000	482.6 Da LogP -1.23 TPSA 178.5	2 viol.	✓ Clean	`CCCCCCCCCCO[C@@H]1O[C@H](CO)[C@@H](O[C@H]2O[C@H…`
ZINC58649715	1.000	496.6 Da LogP -0.84 TPSA 178.5	2 viol.	✓ Clean	`CCCCCCCCCCCO[C@@H]1O[C@H](CO)[C@@H](O[C@H]2O[C@…`
ZINC59978443	1.000	454.5 Da LogP -2.01 TPSA 178.5	2 viol.	✓ Clean	`CCCCCCCCO[C@@H]1O[C@H](CO)[C@@H](O[C@H]2O[C@H](…`
ZINC66157001	1.000	468.5 Da LogP -1.62 TPSA 178.5	2 viol.	✓ Clean	`CCCCCCCCCO[C@@H]1O[C@H](CO)[C@@H](O[C@H]2O[C@H]…`
ZINC70669940	1.000	482.6 Da LogP -1.23 TPSA 178.5	2 viol.	✓ Clean	`CCCCCCCCCCO[C@@H]1O[C@@H](CO)[C@@H](O[C@H]2O[C@…`
ZINC70669941	1.000	482.6 Da LogP -1.23 TPSA 178.5	2 viol.	✓ Clean	`CCCCCCCCCCO[C@@H]1O[C@@H](CO)[C@@H](O[C@H]2O[C@…`
ZINC70669942	1.000	482.6 Da LogP -1.23 TPSA 178.5	2 viol.	✓ Clean	`CCCCCCCCCCO[C@@H]1O[C@@H](CO)[C@@H](O[C@H]2O[C@…`
ZINC70669943	1.000	482.6 Da LogP -1.23 TPSA 178.5	2 viol.	✓ Clean	`CCCCCCCCCCO[C@@H]1O[C@@H](CO)[C@@H](O[C@H]2O[C@…`
ZINC77311968	1.000	454.5 Da LogP -2.01 TPSA 178.5	2 viol.	✓ Clean	`CCCCCCCCO[C@@H]1O[C@H](CO)[C@@H](O[C@@H]2O[C@H]…`
ZINC83433913	1.000	426.5 Da LogP -2.79 TPSA 178.5	2 viol.	✓ Clean	`CCCCCCO[C@@H]1O[C@H](CO)[C@@H](O[C@H]2O[C@H](CO…`
ZINC85482724	1.000	482.6 Da LogP -1.23 TPSA 178.5	2 viol.	✓ Clean	`CCCCCCCCCCO[C@@H]1O[C@H](CO)[C@@H](O[C@H]2O[C@H…`
ZINC86002923	1.000	426.5 Da LogP -2.79 TPSA 178.5	2 viol.	✓ Clean	`CCCCCCO[C@@H]1O[C@H](CO)[C@H](O[C@H]2O[C@H](CO)…`
ZINC100623033	0.811	334.5 Da LogP 1.33 TPSA 99.4	✓ Ro5	✓ Clean	`CCCCCCCCCCCO[C@H]1O[C@@H](CO)[C@@H](O)[C@@H](O)…`
ZINC106384623	0.811	306.4 Da LogP 0.55 TPSA 99.4	✓ Ro5	✓ Clean	`CCCCCCCCCO[C@@H]1O[C@H](CO)[C@@H](O)[C@H](O)[C@…`
ZINC118906329	0.811	348.5 Da LogP 1.72 TPSA 99.4	✓ Ro5	✓ Clean	`CCCCCCCCCCCCO[C@H]1O[C@H](CO)[C@H](O)[C@@H](O)[…`
ZINC118911909	0.811	306.4 Da LogP 0.55 TPSA 99.4	✓ Ro5	✓ Clean	`CCCCCCCCCO[C@H]1O[C@H](CO)[C@H](O)[C@@H](O)[C@@…`
ZINC140974145	0.811	306.4 Da LogP 0.55 TPSA 99.4	✓ Ro5	✓ Clean	`CCCCCCCCCO[C@@H]1O[C@H](CO)[C@H](O)[C@@H](O)[C@…`
ZINC141261234	0.811	320.4 Da LogP 0.94 TPSA 99.4	✓ Ro5	✓ Clean	`CCCCCCCCCCO[C@@H]1O[C@H](CO)[C@H](O)[C@@H](O)[C…`
ZINC14880349	0.811	306.4 Da LogP 0.55 TPSA 99.4	✓ Ro5	✓ Clean	`CCCCCCCCCO[C@@H]1O[C@@H](CO)[C@@H](O)[C@@H](O)[…`
ZINC14880350	0.811	306.4 Da LogP 0.55 TPSA 99.4	✓ Ro5	✓ Clean	`CCCCCCCCCO[C@H]1O[C@@H](CO)[C@@H](O)[C@@H](O)[C…`
ZINC15609263	0.811	306.4 Da LogP 0.55 TPSA 99.4	✓ Ro5	✓ Clean	`CCCCCCCCCO[C@@H]1O[C@H](CO)[C@@H](O)[C@H](O)[C@…`
ZINC1849674	0.811	292.4 Da LogP 0.16 TPSA 99.4	✓ Ro5	✓ Clean	`CCCCCCCCO[C@H]1O[C@@H](CO)[C@H](O)[C@@H](O)[C@@…`
ZINC2046837	0.811	306.4 Da LogP 0.55 TPSA 99.4	✓ Ro5	✓ Clean	`CCCCCCCCCO[C@H]1O[C@@H](CO)[C@H](O)[C@@H](O)[C@…`
ZINC248251557	0.811	320.4 Da LogP 0.94 TPSA 99.4	✓ Ro5	✓ Clean	`CCCCCCCCCCO[C@H]1O[C@@H](CO)[C@H](O)[C@@H](O)[C…`
ZINC40165555	0.811	292.4 Da LogP 0.16 TPSA 99.4	✓ Ro5	✓ Clean	`CCCCCCCCO[C@@H]1O[C@H](CO)[C@@H](O)[C@H](O)[C@H…`
ZINC49878456	0.811	306.4 Da LogP 0.55 TPSA 99.4	✓ Ro5	✓ Clean	`CCCCCCCCCO[C@H]1O[C@@H](CO)[C@@H](O)[C@@H](O)[C…`
ZINC53683291	0.811	292.4 Da LogP 0.16 TPSA 99.4	✓ Ro5	✓ Clean	`CCCCCCCCO[C@@H]1O[C@H](CO)[C@H](O)[C@H](O)[C@H]…`
ZINC58538417	0.811	320.4 Da LogP 0.94 TPSA 99.4	✓ Ro5	✓ Clean	`CCCCCCCCCCO[C@@H]1O[C@H](CO)[C@@H](O)[C@H](O)[C…`
ZINC71788563	0.811	292.4 Da LogP 0.16 TPSA 99.4	✓ Ro5	✓ Clean	`CCCCCCCCO[C@@H]1O[C@@H](CO)[C@@H](O)[C@H](O)[C@…`
ZINC85478989	0.811	320.4 Da LogP 0.94 TPSA 99.4	✓ Ro5	✓ Clean	`CCCCCCCCCCO[C@H]1O[C@H](CO)[C@@H](O)[C@H](O)[C@…`
ZINC85590873	0.811	320.4 Da LogP 0.94 TPSA 99.4	✓ Ro5	✓ Clean	`CCCCCCCCCCO[C@H]1O[C@@H](CO)[C@@H](O)[C@@H](O)[…`
ZINC85590883	0.811	320.4 Da LogP 0.94 TPSA 99.4	✓ Ro5	✓ Clean	`CCCCCCCCCCO[C@H]1O[C@@H](CO)[C@@H](O)[C@@H](O)[…`
ZINC85590888	0.811	320.4 Da LogP 0.94 TPSA 99.4	✓ Ro5	✓ Clean	`CCCCCCCCCCO[C@@H]1O[C@@H](CO)[C@@H](O)[C@@H](O)…`
ZINC94437834	0.811	292.4 Da LogP 0.16 TPSA 99.4	✓ Ro5	✓ Clean	`CCCCCCCCO[C@H]1O[C@H](CO)[C@H](O)[C@H](O)[C@H]1O`

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.