Protein profile

KP13_01020

Amidophosphoribosyltransferase

Genome: KpKP13

Gene: purF AHE43452.1 Structure source: AlphaFold + ColabFold UniProt A0A0H3H133

Export view

Amino acids 505

Annotations 5

Features 26

PDB binders 10

Druggability 0.392

Overview

Basic information about this protein and its source genome.

Accession: KP13_01020
Assembly: Klebsiella pneumoniae subsp. pneumoniae Kp13, complete sequence
Gene: purF AHE43452.1
Status: annotated
Amino acids: 505
Structure source: AlphaFold + ColabFold

2.4.2.14

GO:0009113 The chemical reactions and pathways resulting in the formation of purine nucleobases, one of the two classes of nitrogen-containing ring compounds found in DNA and RNA, which include adenine and guanine. GO:0004044 Catalysis of the reaction: 5-phospho-beta-D-ribosylamine + L-glutamate + diphosphate = 5-phospho-alpha-D-ribose 1-diphosphate + L-glutamine + H2O. GO:0000287 Binding to a magnesium (Mg) ion. GO:0006189 The chemical reactions and pathways resulting in the formation of IMP, inosine monophosphate, by the stepwise assembly of a purine ring on ribose 5-phosphate.

Target profile

Computed evidence for target prioritization.

Human off-target: hit
Human identity (%): 40.323
Human E-value: 5.36e-20
Gut microbiome off-target: hit
Essential (DEG): Y
DEG identity (%): 64.213
DEG E-value: 0.0
Localization: Cytoplasmic
ColabFold pLDDT: 92.25

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 0.392

Structure A0A0H3H133

Pocket Pocket 31

P2Rank 0.643

Structure A0A0H3H133

Pocket Pocket 1

ColabFold model

FPocket 0.517 · Pocket 1

P2Rank 0.676 · Pocket 1

Core conservation Conserved core gene

Roary core

CoreCruncher core

Gut microbiome 273 / 4744 genomes with a hit

Normalized 0.058

Sequence

Primary amino-acid sequence viewer.

Functional Annotations

Enzyme classification and Gene Ontology terms linked to this protein.

1 EC 4 GO

Enzyme Commission (EC)

2.4.2.14

Gene Ontology (GO)

GO:0009113 The chemical reactions and pathways resulting in the formation of purine nucleobases, one of the two classes of nitrogen-containing ring compounds found in DNA and RNA, which include adenine and guanine.
GO:0004044 Catalysis of the reaction: 5-phospho-beta-D-ribosylamine + L-glutamate + diphosphate = 5-phospho-alpha-D-ribose 1-diphosphate + L-glutamine + H2O.
GO:0000287 Binding to a magnesium (Mg) ion.
GO:0006189 The chemical reactions and pathways resulting in the formation of IMP, inosine monophosphate, by the stepwise assembly of a purine ring on ribose 5-phosphate.

Sequence Features

Domain/signature hits from InterPro and related databases.

26 records

Show feature table

Start	End	DB	Term	Name
2	268	CDD	cd00715	GPATase_N
2	268	InterPro	IPR035584	Amidophosphoribosyltransferase, N-terminal
283	398	CDD	cd06223	PRTases_typeI
283	398	InterPro	IPR000836	Phosphoribosyltransferase domain
1	483	PIRSF	PIRSF000485	Pur1
1	483	InterPro	IPR005854	Amidophosphoribosyltransferase
1	478	PANTHER	PTHR11907	AMIDOPHOSPHORIBOSYLTRANSFERASE
482	502	Coils	Coil	Coil
281	443	Gene3D	G3DSA:3.40.50.2020	-
281	443	InterPro	IPR029057	Phosphoribosyltransferase-like
2	290	FunFam	G3DSA:3.60.20.10:FF:000011	Amidophosphoribosyltransferase
65	196	Pfam	PF13522	Glutamine amidotransferase domain
2	236	ProSiteProfiles	PS51278	Glutamine amidotransferase type 2 domain profile.
2	236	InterPro	IPR017932	Glutamine amidotransferase type 2 domain
2	416	Gene3D	G3DSA:3.60.20.10	Glutamine Phosphoribosylpyrophosphate, subunit 1, domain 1
2	416	InterPro	IPR029055	Nucleophile aminohydrolases, N-terminal
2	466	NCBIfam	TIGR01134	amidophosphoribosyltransferase
2	466	InterPro	IPR005854	Amidophosphoribosyltransferase
2	259	SUPERFAMILY	SSF56235	N-terminal nucleophile aminohydrolases (Ntn hydrolases)
2	259	InterPro	IPR029055	Nucleophile aminohydrolases, N-terminal
1	466	Hamap	MF_01931	Amidophosphoribosyltransferase [purF].
1	466	InterPro	IPR005854	Amidophosphoribosyltransferase
252	485	SUPERFAMILY	SSF53271	PRTase-like
252	485	InterPro	IPR029057	Phosphoribosyltransferase-like
287	394	Pfam	PF00156	Phosphoribosyl transferase domain
287	394	InterPro	IPR000836	Phosphoribosyltransferase domain

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_A0A0H3H133	AlphaFold	—	—	full sequence	—	Viewing
ColabFold KP13_01020	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
31				0.392

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	4.55	0.196
2	3.52	0.129
3	3.08	0.103
4	1.98	0.042
5	1.27	0.013

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				0.517
24				0.211

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	8.38	0.447
2	3.99	0.159
3	2.69	0.08

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.

63 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
5GP	1ECB	P0AG16	363.2 Da LogP -2.57 TPSA 206.0	1 viol.	✓ Clean	`c1nc2c(n1[C@H]3[C@@H]([C@@H]([C@H](O3)COP(=O)(O…`
AGP	1MOS	P17169	261.2 Da LogP -3.50 TPSA 173.7	1 viol.	✓ Clean	`C([C@@H]([C@H]([C@@H]([C@@H](COP(=O)(O)O)O)O)O)…`
F6R	4AMV	P17169	260.1 Da LogP -3.26 TPSA 164.8	1 viol.	✓ Clean	`C([C@H]([C@H]([C@@H](C(=O)CO)O)O)O)OP(=O)(O)O`
G4P	6CZF	P0AG16	603.2 Da LogP -2.22 TPSA 345.6	3 viol.	✓ Clean	`c1nc2c(n1[C@H]3[C@@H]([C@@H]([C@H](O3)CO[P@](=O…`
G6Q	1JXA	P17169	260.1 Da LogP -3.26 TPSA 164.8	1 viol.	✓ Clean	`C([C@H]([C@H]([C@@H]([C@H](C=O)O)O)O)O)OP(=O)(O…`
HGA	1XFG	P17169	162.1 Da LogP -1.32 TPSA 112.7	✓ Ro5	✓ Clean	`C(CC(=O)NO)[C@@H](C(=O)O)N`
N7Y	6OTT	P0AG16	587.2 Da LogP -1.51 TPSA 325.7	3 viol.	✓ Clean	`c1nc(c2c(n1)n(cn2)[C@H]3[C@@H]([C@@H]([C@H](O3)…`
ONL	1ECC	P0AG16	145.2 Da LogP -0.23 TPSA 80.4	✓ Ro5	✓ Clean	`CC(=O)CC[C@@H](C(=O)O)N`
PCP	1ECC	P0AG16	388.1 Da LogP -1.57 TPSA 220.5	1 viol.	✓ Clean	`C1[C@@H]([C@H]([C@H]([C@H]1O[P@](=O)(O)OP(=O)(O…`
PIN	1ECF	P0AG16	302.4 Da LogP -1.62 TPSA 115.2	✓ Ro5	✓ Clean	`C1CN(CCN1CCS(=O)(=O)O)CCS(=O)(=O)O`

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).

Ligand	UniProt (homolog)	pchembl	MW · LogP · TPSA	Lipinski	PAINS	SMILES
CHEMBL1911372	Q06210	6.82	225.0 Da LogP -1.09 TPSA 92.4	✓ Ro5	✓ Clean	`N[C@@H](CNC(=O)CBr)C(=O)O`
CHEMBL1200751	Q06203	—	170.2 Da LogP 0.19 TPSA 88.9	✓ Ro5	✓ Clean	`O.S=c1[nH]cnc2nc[nH]c12`
CHEMBL1542	Q06203	—	277.3 Da LogP 1.15 TPSA 115.4	✓ Ro5	✓ Clean	`Cn1cnc([N+](=O)[O-])c1Sc1ncnc2[nH]cnc12`

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
ZINC100065511	1.000	260.1 Da LogP -3.26 TPSA 164.8	1 viol.	✓ Clean	`O=C(CO)[C@H](O)[C@H](O)[C@@H](O)COP(=O)(O)O`
ZINC100085043	1.000	260.1 Da LogP -3.26 TPSA 164.8	1 viol.	✓ Clean	`O=C(CO)[C@H](O)[C@H](O)[C@H](O)COP(=O)(O)O`
ZINC104869937	1.000	260.1 Da LogP -3.26 TPSA 164.8	1 viol.	✓ Clean	`O=C(CO)[C@H](O)[C@@H](O)[C@@H](O)COP(=O)(O)O`
ZINC12501413	1.000	363.2 Da LogP -2.57 TPSA 206.0	1 viol.	✓ Clean	`Nc1nc2c(ncn2[C@@H]2O[C@H](COP(=O)(O)O)[C@@H](O)…`
ZINC12958448	1.000	363.2 Da LogP -2.57 TPSA 206.0	1 viol.	✓ Clean	`Nc1nc2c(ncn2[C@@H]2O[C@H](COP(=O)(O)O)[C@H](O)[…`
ZINC13537943	1.000	260.1 Da LogP -3.26 TPSA 164.8	1 viol.	✓ Clean	`O=C(CO)[C@H](O)[C@@H](O)[C@H](O)COP(=O)(O)O`
ZINC1532555	1.000	363.2 Da LogP -2.57 TPSA 206.0	1 viol.	✓ Clean	`Nc1nc2c(ncn2[C@H]2O[C@@H](COP(=O)(O)O)[C@H](O)[…`
ZINC16546189	1.000	363.2 Da LogP -2.57 TPSA 206.0	1 viol.	✓ Clean	`Nc1nc2c(ncn2[C@@H]2O[C@H](COP(=O)(O)O)[C@H](O)[…`
ZINC19364835	1.000	302.4 Da LogP -1.62 TPSA 115.2	✓ Ro5	✓ Clean	`O=S(=O)(O)CCN1CCN(CCS(=O)(=O)O)CC1`
ZINC2159505	1.000	363.2 Da LogP -2.57 TPSA 206.0	1 viol.	✓ Clean	`Nc1nc2c(ncn2[C@@H]2O[C@H](COP(=O)(O)O)[C@@H](O)…`
ZINC3073318	1.000	363.2 Da LogP -2.57 TPSA 206.0	1 viol.	✓ Clean	`Nc1nc2c(ncn2[C@H]2O[C@@H](COP(=O)(O)O)[C@@H](O)…`
ZINC3869963	1.000	363.2 Da LogP -2.57 TPSA 206.0	1 viol.	✓ Clean	`Nc1nc2c(ncn2[C@H]2O[C@@H](COP(=O)(O)O)[C@@H](O)…`
ZINC3869965	1.000	363.2 Da LogP -2.57 TPSA 206.0	1 viol.	✓ Clean	`Nc1nc2c(ncn2[C@@H]2O[C@@H](COP(=O)(O)O)[C@@H](O…`
ZINC85994845	1.000	260.1 Da LogP -3.26 TPSA 164.8	1 viol.	✓ Clean	`O=C(CO)[C@@H](O)[C@H](O)[C@H](O)COP(=O)(O)O`
ZINC9334496	1.000	363.2 Da LogP -2.57 TPSA 206.0	1 viol.	✓ Clean	`Nc1nc2c(ncn2[C@H]2O[C@@H](COP(=O)(O)O)[C@H](O)[…`
ZINC5132038	0.897	290.2 Da LogP -3.90 TPSA 185.0	1 viol.	✓ Clean	`O=C(CO)[C@@H](O)[C@H](O)[C@H](O)[C@H](O)COP(=O)…`
ZINC104869865	0.857	443.2 Da LogP -2.45 TPSA 252.6	2 viol.	✓ Clean	`Nc1nc2c(ncn2[C@H]2O[C@H](CO[P@@](=O)(O)OP(=O)(O…`
ZINC12504289	0.857	443.2 Da LogP -2.45 TPSA 252.6	2 viol.	✓ Clean	`Nc1nc2c(ncn2[C@@H]2O[C@H](CO[P@@](=O)(O)OP(=O)(…`
ZINC19594730	0.857	316.4 Da LogP -1.23 TPSA 115.2	✓ Ro5	✓ Clean	`O=S(=O)(O)CCN1CCCN(CCS(=O)(=O)O)CC1`
ZINC34541308	0.857	443.2 Da LogP -2.45 TPSA 252.6	2 viol.	✓ Clean	`Nc1nc2c(ncn2[C@@H]2O[C@H](CO[P@@](=O)(O)OP(=O)(…`
ZINC35000839	0.857	443.2 Da LogP -2.45 TPSA 252.6	2 viol.	✓ Clean	`Nc1nc2c(ncn2[C@H]2O[C@@H](CO[P@@](=O)(O)OP(=O)(…`
ZINC45284491	0.857	443.2 Da LogP -2.45 TPSA 252.6	2 viol.	✓ Clean	`Nc1nc2c(ncn2[C@H]2O[C@@H](CO[P@@](=O)(O)OP(=O)(…`
ZINC71404929	0.857	330.4 Da LogP -0.84 TPSA 115.2	✓ Ro5	✓ Clean	`O=S(=O)(O)CCN1CCCCN(CCS(=O)(=O)O)CC1`
ZINC80639694	0.857	443.2 Da LogP -2.45 TPSA 252.6	2 viol.	✓ Clean	`Nc1nc2c(ncn2[C@@H]2O[C@H](CO[P@@](=O)(O)OP(=O)(…`
ZINC8215481	0.857	443.2 Da LogP -2.45 TPSA 252.6	2 viol.	✓ Clean	`Nc1nc2c(ncn2[C@@H]2O[C@H](CO[P@@](=O)(O)OP(=O)(…`
ZINC12360002	0.839	427.2 Da LogP -1.75 TPSA 232.6	2 viol.	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@H](CO[P@@](=O)(O)OP(=O…`
ZINC12360703	0.839	427.2 Da LogP -1.75 TPSA 232.6	2 viol.	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@H](CO[P@@](=O)(O)OP(=O…`
ZINC12503599	0.839	427.2 Da LogP -1.75 TPSA 232.6	2 viol.	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@H](CO[P@@](=O)(O)OP(=O…`
ZINC16546165	0.839	427.2 Da LogP -1.75 TPSA 232.6	2 viol.	✓ Clean	`Nc1ncnc2c1ncn2[C@H]1O[C@H](CO[P@](=O)(O)OP(=O)(…`
ZINC31977053	0.839	427.2 Da LogP -1.75 TPSA 232.6	2 viol.	✓ Clean	`Nc1ncnc2c1ncn2[C@H]1O[C@@H](CO[P@](=O)(O)OP(=O)…`
ZINC4806433	0.839	427.2 Da LogP -1.75 TPSA 232.6	2 viol.	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@H](CO[P@@](=O)(O)OP(=O…`
ZINC53683898	0.839	427.2 Da LogP -1.75 TPSA 232.6	2 viol.	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@@H](CO[P@@](=O)(O)OP(=…`
ZINC8586019	0.839	427.2 Da LogP -1.75 TPSA 232.6	2 viol.	✓ Clean	`Nc1ncnc2c1ncn2[C@H]1O[C@@H](CO[P@](=O)(O)OP(=O)…`
ZINC8586020	0.839	427.2 Da LogP -1.75 TPSA 232.6	2 viol.	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@@H](CO[P@@](=O)(O)OP(=…`
ZINC8586021	0.839	427.2 Da LogP -1.75 TPSA 232.6	2 viol.	✓ Clean	`Nc1ncnc2c1ncn2[C@H]1O[C@@H](CO[P@@](=O)(O)OP(=O…`
ZINC8586022	0.839	427.2 Da LogP -1.75 TPSA 232.6	2 viol.	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@@H](CO[P@@](=O)(O)OP(=…`
ZINC19203136	0.818	238.3 Da LogP -1.52 TPSA 81.1	✓ Ro5	✓ Clean	`O=S(=O)(O)CCN1CCN(CCO)CC1`
ZINC33979258	0.800	364.2 Da LogP -2.45 TPSA 200.2	1 viol.	✓ Clean	`O=c1[nH]c(O)nc2c1ncn2[C@H]1O[C@@H](COP(=O)(O)O)…`
ZINC33979259	0.800	364.2 Da LogP -2.45 TPSA 200.2	1 viol.	✓ Clean	`O=c1[nH]c(O)nc2c1ncn2[C@H]1O[C@@H](COP(=O)(O)O)…`
ZINC78920152	0.800	364.2 Da LogP -2.45 TPSA 200.2	1 viol.	✓ Clean	`O=c1[nH]c(O)nc2c1ncn2[C@H]1O[C@@H](COP(=O)(O)O)…`
ZINC1529626	0.793	230.1 Da LogP -2.62 TPSA 144.5	✓ Ro5	✓ Clean	`O=C(CO)[C@H](O)[C@@H](O)COP(=O)(O)O`
ZINC1532567	0.793	230.1 Da LogP -2.62 TPSA 144.5	✓ Ro5	✓ Clean	`O=C(CO)[C@H](O)[C@H](O)COP(=O)(O)O`
ZINC1532851	0.793	230.1 Da LogP -2.62 TPSA 144.5	✓ Ro5	✓ Clean	`O=C(CO)[C@@H](O)[C@@H](O)COP(=O)(O)O`
ZINC30320708	0.793	230.1 Da LogP -2.62 TPSA 144.5	✓ Ro5	✓ Clean	`O=C(CO)[C@@H](O)[C@H](O)COP(=O)(O)O`
ZINC12501123	0.789	427.2 Da LogP -1.75 TPSA 232.6	2 viol.	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@H](COP(=O)(O)O)[C@@H](…`
ZINC4228234	0.789	427.2 Da LogP -1.75 TPSA 232.6	2 viol.	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@H](COP(=O)(O)O)[C@@H](…`
ZINC79671662	0.789	427.2 Da LogP -1.75 TPSA 232.6	2 viol.	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@H](COP(=O)(O)O)[C@H](O…`
ZINC79671663	0.789	427.2 Da LogP -1.75 TPSA 232.6	2 viol.	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@H](COP(=O)(O)O)[C@H](O…`
ZINC71774763	0.758	432.3 Da LogP -2.23 TPSA 198.3	1 viol.	✓ Clean	`Nc1nc2c(ncn2[C@@H]2O[C@H](CO[P@](=O)(O)N3CCOCC3…`
ZINC12502214	0.742	340.1 Da LogP -3.14 TPSA 211.3	1 viol.	✓ Clean	`O=C(COP(=O)(O)O)[C@H](O)[C@@H](O)[C@@H](O)COP(=…`

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.