Protein profile

KP13_01570

Para-aminobenzoate synthase component 1

Genome: KpKP13

Gene: pabB AHE43903.1 Structure source: AlphaFold + ColabFold UniProt A0A0H3GZZ4

Export view

Amino acids 451

Annotations 7

Features 22

PDB binders 5

Druggability 0.82

Overview

Basic information about this protein and its source genome.

Accession: KP13_01570
Assembly: Klebsiella pneumoniae subsp. pneumoniae Kp13, complete sequence
Gene: pabB AHE43903.1
Status: annotated
Amino acids: 451
Structure source: AlphaFold + ColabFold

2.6.1.85

GO:0009058 A cellular process consisting of the biochemical pathways by which a living organism synthesizes chemical substances. This typically represents the energy-requiring part of metabolism in which simpler substances are transformed into more complex ones. GO:0009396 The chemical reactions and pathways resulting in the formation of folic acid and its derivatives. GO:0046820 Catalysis of the reaction: L-glutamine + chorismate = 4-amino-4-deoxychorismate + L-glutamate. It is composed of two enzymatic activities (which may be present on one or two polypeptides); the first is a glutaminase which yields ammonia from glutamine, releasing glutamate. The ammonia is used by the second activity which catalyzes the amination of chorismate to form 4-amino-4-deoxychorismate. GO:0046656 The chemical reactions and pathways resulting in the formation of folic acid, pteroylglutamic acid. GO:0000162 The chemical reactions and pathways resulting in the formation of L-tryptophan, the chiral amino acid 2-amino-3-(1H-indol-3-yl)propanoic acid; L-tryptophan is synthesized from chorismate via anthranilate. GO:0046654 The chemical reactions and pathways resulting in the formation of tetrahydrofolate, 5,6,7,8-tetrahydrofolic acid, a folate derivative bearing additional hydrogens on the pterin group.

Target profile

Computed evidence for target prioritization.

Human off-target: No hit
Human identity (%): 0.0
Gut microbiome off-target: hit
Essential (DEG): Y
DEG identity (%): 77.778
DEG E-value: 0.0
Localization: Cytoplasmic
ColabFold pLDDT: 94.39

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 0.82

Structure A0A0H3GZZ4

Pocket Pocket 1

P2Rank 0.942

Structure A0A0H3GZZ4

Pocket Pocket 1

ColabFold model

FPocket 0.606 · Pocket 1

P2Rank 0.879 · Pocket 1

Core conservation Accessory gene

Roary core

CoreCruncher accessory

Gut microbiome 121 / 4744 genomes with a hit

Normalized 0.026

Sequence

Primary amino-acid sequence viewer.

Functional Annotations

Enzyme classification and Gene Ontology terms linked to this protein.

1 EC 6 GO

Enzyme Commission (EC)

2.6.1.85

Gene Ontology (GO)

GO:0009058 A cellular process consisting of the biochemical pathways by which a living organism synthesizes chemical substances. This typically represents the energy-requiring part of metabolism in which simpler substances are transformed into more complex ones.
GO:0009396 The chemical reactions and pathways resulting in the formation of folic acid and its derivatives.
GO:0046820 Catalysis of the reaction: L-glutamine + chorismate = 4-amino-4-deoxychorismate + L-glutamate. It is composed of two enzymatic activities (which may be present on one or two polypeptides); the first is a glutaminase which yields ammonia from glutamine, releasing glutamate. The ammonia is used by the second activity which catalyzes the amination of chorismate to form 4-amino-4-deoxychorismate.
GO:0046656 The chemical reactions and pathways resulting in the formation of folic acid, pteroylglutamic acid.
GO:0000162 The chemical reactions and pathways resulting in the formation of L-tryptophan, the chiral amino acid 2-amino-3-(1H-indol-3-yl)propanoic acid; L-tryptophan is synthesized from chorismate via anthranilate.
GO:0046654 The chemical reactions and pathways resulting in the formation of tetrahydrofolate, 5,6,7,8-tetrahydrofolic acid, a folate derivative bearing additional hydrogens on the pterin group.

Sequence Features

Domain/signature hits from InterPro and related databases.

22 records

Show feature table

Start	End	DB	Term	Name
20	150	Pfam	PF04715	Anthranilate synthase component I, N terminal region
20	150	InterPro	IPR006805	Anthranilate synthase component I, N-terminal
188	441	Pfam	PF00425	chorismate binding enzyme
188	441	InterPro	IPR015890	Chorismate-utilising enzyme, C-terminal
105	445	NCBIfam	TIGR00553	aminodeoxychorismate synthase component I
105	445	InterPro	IPR005802	Aminodeoxychorismate synthase, component I
432	451	Coils	Coil	Coil
1	451	Gene3D	G3DSA:3.60.120.10	Anthranilate synthase
1	451	InterPro	IPR005801	ADC synthase
398	412	PRINTS	PR00095	Anthranilate synthase component I signature
398	412	InterPro	IPR019999	Anthranilate synthase component I-like
289	302	PRINTS	PR00095	Anthranilate synthase component I signature
289	302	InterPro	IPR019999	Anthranilate synthase component I-like
383	397	PRINTS	PR00095	Anthranilate synthase component I signature
383	397	InterPro	IPR019999	Anthranilate synthase component I-like
303	316	PRINTS	PR00095	Anthranilate synthase component I signature
303	316	InterPro	IPR019999	Anthranilate synthase component I-like
30	448	PANTHER	PTHR11236	AMINOBENZOATE/ANTHRANILATE SYNTHASE
30	448	InterPro	IPR019999	Anthranilate synthase component I-like
4	449	SUPERFAMILY	SSF56322	ADC synthase
4	449	InterPro	IPR005801	ADC synthase
1	451	FunFam	G3DSA:3.60.120.10:FF:000004	Aminodeoxychorismate synthase, component I

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_A0A0H3GZZ4	AlphaFold	—	—	full sequence	—	Viewing
ColabFold KP13_01570	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
1				0.82
29				0.423

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	15.11	0.745
2	7.98	0.424
3	5.46	0.26
4	5.01	0.228
5	2.71	0.081

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				0.606

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	14.52	0.725
2	7.71	0.408
3	6.7	0.34
4	1.87	0.037
5	1.25	0.012

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.

56 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
0GA	5CWA	P9WFX2	238.2 Da LogP 1.46 TPSA 104.1	✓ Ro5	✓ Clean	`C/C=C(/C(=O)O)\Oc1cccc(c1O)C(=O)O`
15P	4GRH	B2FR92	1529.8 Da LogP 0.17 TPSA 334.1	2 viol.	✓ Clean	`COCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCO…`
BEZ	7BVD	A0QX93	122.1 Da LogP 1.38 TPSA 37.3	✓ Ro5	✓ Clean	`c1ccc(cc1)C(=O)O`
CPS	4GRH	B2FR92	614.9 Da LogP 2.88 TPSA 147.0	1 viol.	✓ Clean	`C[C@H](CCC(=O)NCCC[N+](C)(C)CCCS(=O)(=O)[O-])[C…`
PYR	7BVD	A0QX93	88.1 Da LogP -0.34 TPSA 54.4	✓ Ro5	✓ Clean	`CC(=O)C(=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
CHEMBL216545	P00898	—	196.2 Da LogP 0.85 TPSA 83.8	✓ Ro5	✓ Clean	`O=C(O)COc1cccc(C(=O)O)c1`

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
ZINC1580161	1.000	208.3 Da LogP -0.33 TPSA 57.2	✓ Ro5	✓ Clean	`COCCOCCOCCOCCO`
ZINC16052118	1.000	340.4 Da LogP -0.28 TPSA 84.8	✓ Ro5	✓ Clean	`COCCOCCOCCOCCOCCOCCOCCO`
ZINC16052257	1.000	384.5 Da LogP -0.26 TPSA 94.1	✓ Ro5	✓ Clean	`COCCOCCOCCOCCOCCOCCOCCOCCO`
ZINC34317654	1.000	472.6 Da LogP -0.23 TPSA 112.5	1 viol.	✓ Clean	`COCCOCCOCCOCCOCCOCCOCCOCCOCCOCCO`
ZINC44076059	1.000	428.5 Da LogP -0.24 TPSA 103.3	✓ Ro5	✓ Clean	`COCCOCCOCCOCCOCCOCCOCCOCCOCCO`
ZINC5210101	1.000	252.3 Da LogP -0.31 TPSA 66.4	✓ Ro5	✓ Clean	`COCCOCCOCCOCCOCCO`
ZINC5997860	1.000	296.4 Da LogP -0.29 TPSA 75.6	✓ Ro5	✓ Clean	`COCCOCCOCCOCCOCCOCCO`
ZINC83315	1.000	204.2 Da LogP 1.12 TPSA 79.1	✓ Ro5	✓ Clean	`N[C@@H](Cc1c[nH]c2ccccc12)C(=O)O`
ZINC83317	1.000	204.2 Da LogP 1.12 TPSA 79.1	✓ Ro5	✓ Clean	`N[C@H](Cc1c[nH]c2ccccc12)C(=O)O`
ZINC3269660	0.824	254.2 Da LogP 2.45 TPSA 71.4	✓ Ro5	Alert	`O=C(O)c1ccc(C(=O)C(=O)c2ccccc2)cc1`
ZINC2504355	0.778	226.2 Da LogP 2.62 TPSA 54.4	✓ Ro5	✓ Clean	`O=C(O)c1ccc(C(=O)c2ccccc2)cc1`
ZINC4899521	0.778	203.2 Da LogP 0.52 TPSA 84.9	✓ Ro5	✓ Clean	`NC(=O)[C@H](N)Cc1c[nH]c2ccccc12`
ZINC57505	0.778	203.2 Da LogP 0.52 TPSA 84.9	✓ Ro5	✓ Clean	`NC(=O)[C@@H](N)Cc1c[nH]c2ccccc12`
ZINC2566035	0.757	218.3 Da LogP 1.51 TPSA 79.1	✓ Ro5	✓ Clean	`N[C@@H](CCc1c[nH]c2ccccc12)C(=O)O`
ZINC6864822	0.757	218.3 Da LogP 1.51 TPSA 79.1	✓ Ro5	✓ Clean	`N[C@H](CCc1c[nH]c2ccccc12)C(=O)O`
ZINC332363	0.750	226.2 Da LogP 0.61 TPSA 93.1	✓ Ro5	✓ Clean	`O=C(O)COc1cccc(OCC(=O)O)c1`
ZINC1690614	0.743	233.2 Da LogP 1.50 TPSA 90.4	✓ Ro5	✓ Clean	`O=C(O)C(Cc1c[nH]c2ccccc12)C(=O)O`
ZINC72399572	0.733	492.7 Da LogP 3.43 TPSA 93.0	✓ Ro5	✓ Clean	`C[C@H](CCC(=O)NCCCN(C)C)[C@H]1CC[C@H]2[C@H]3[C@…`
ZINC1637998	0.732	261.3 Da LogP 0.24 TPSA 108.2	✓ Ro5	✓ Clean	`N[C@H](Cc1c[nH]c2ccccc12)C(=O)NCC(=O)O`
ZINC2384992	0.732	261.3 Da LogP 0.24 TPSA 108.2	✓ Ro5	✓ Clean	`N[C@@H](Cc1c[nH]c2ccccc12)C(=O)NCC(=O)O`
ZINC264238	0.732	293.4 Da LogP 2.35 TPSA 70.9	✓ Ro5	✓ Clean	`N[C@H](Cc1c[nH]c2ccccc12)C(=O)NCc1ccccc1`
ZINC264242	0.732	293.4 Da LogP 2.35 TPSA 70.9	✓ Ro5	✓ Clean	`N[C@@H](Cc1c[nH]c2ccccc12)C(=O)NCc1ccccc1`
ZINC575419714	0.727	312.4 Da LogP 0.42 TPSA 66.4	✓ Ro5	✓ Clean	`COCCOCCOCCSCCOCCOCCO`
ZINC34781219	0.718	218.3 Da LogP 1.21 TPSA 68.1	✓ Ro5	✓ Clean	`COC(=O)[C@H](N)Cc1c[nH]c2ccccc12`
ZINC34781220	0.718	218.3 Da LogP 1.21 TPSA 68.1	✓ Ro5	✓ Clean	`COC(=O)[C@@H](N)Cc1c[nH]c2ccccc12`
ZINC1557161	0.714	390.4 Da LogP 2.33 TPSA 124.0	✓ Ro5	✓ Clean	`N[C@@H](Cc1c[nH]c2ccccc12)C(=O)N[C@@H](Cc1c[nH]…`
ZINC1557164	0.714	390.4 Da LogP 2.33 TPSA 124.0	✓ Ro5	✓ Clean	`N[C@H](Cc1c[nH]c2ccccc12)C(=O)N[C@H](Cc1c[nH]c2…`
ZINC14982898	0.711	220.2 Da LogP 0.83 TPSA 99.3	✓ Ro5	✓ Clean	`N[C@@H](Cc1c[nH]c2c(O)cccc12)C(=O)O`
ZINC14982901	0.711	220.2 Da LogP 0.83 TPSA 99.3	✓ Ro5	✓ Clean	`N[C@H](Cc1c[nH]c2c(O)cccc12)C(=O)O`
ZINC193616	0.707	279.3 Da LogP 2.68 TPSA 70.9	✓ Ro5	✓ Clean	`N[C@H](Cc1c[nH]c2ccccc12)C(=O)Nc1ccccc1`
ZINC2497690	0.707	279.3 Da LogP 2.68 TPSA 70.9	✓ Ro5	✓ Clean	`N[C@@H](Cc1c[nH]c2ccccc12)C(=O)Nc1ccccc1`
ZINC35051054	0.707	294.4 Da LogP 2.78 TPSA 68.1	✓ Ro5	✓ Clean	`N[C@H](Cc1c[nH]c2ccccc12)C(=O)OCc1ccccc1`
ZINC35051056	0.707	294.4 Da LogP 2.78 TPSA 68.1	✓ Ro5	✓ Clean	`N[C@@H](Cc1c[nH]c2ccccc12)C(=O)OCc1ccccc1`
ZINC874230	0.707	231.3 Da LogP 1.17 TPSA 70.9	✓ Ro5	✓ Clean	`CCNC(=O)[C@H](N)Cc1c[nH]c2ccccc12`
ZINC874233	0.707	231.3 Da LogP 1.17 TPSA 70.9	✓ Ro5	✓ Clean	`CCNC(=O)[C@@H](N)Cc1c[nH]c2ccccc12`
ZINC19504011	0.706	210.2 Da LogP 0.94 TPSA 72.8	✓ Ro5	✓ Clean	`COC(=O)COc1cccc(C(=O)O)c1`
ZINC34161407	0.706	210.2 Da LogP 0.94 TPSA 72.8	✓ Ro5	✓ Clean	`COC(=O)c1cccc(OCC(=O)O)c1`
ZINC1889002139	0.703	449.7 Da LogP 3.89 TPSA 89.8	✓ Ro5	✓ Clean	`CCCNC(=O)CC[C@@H](C)[C@H]1CC[C@@H]2[C@H]3[C@H](…`
ZINC1889002140	0.703	449.7 Da LogP 3.89 TPSA 89.8	✓ Ro5	✓ Clean	`CCCNC(=O)CC[C@@H](C)[C@H]1CC[C@@H]2[C@H]3[C@H](…`
ZINC1889002141	0.703	449.7 Da LogP 3.89 TPSA 89.8	✓ Ro5	✓ Clean	`CCCNC(=O)CC[C@@H](C)[C@H]1CC[C@@H]2[C@@H]3[C@H]…`
ZINC1889002142	0.703	449.7 Da LogP 3.89 TPSA 89.8	✓ Ro5	✓ Clean	`CCCNC(=O)CC[C@@H](C)[C@H]1CC[C@@H]2[C@@H]3[C@H]…`
ZINC39098	0.703	205.2 Da LogP 1.16 TPSA 73.3	✓ Ro5	✓ Clean	`O=C(O)[C@@H](O)Cc1c[nH]c2ccccc12`
ZINC39099	0.703	205.2 Da LogP 1.16 TPSA 73.3	✓ Ro5	✓ Clean	`O=C(O)[C@H](O)Cc1c[nH]c2ccccc12`
ZINC83138991	0.703	268.1 Da LogP 2.56 TPSA 53.1	✓ Ro5	✓ Clean	`O=C(O)[C@@H](Br)Cc1c[nH]c2ccccc12`
ZINC115163232	0.700	222.3 Da LogP 0.07 TPSA 57.2	✓ Ro5	✓ Clean	`COCCOCCOCCOCCCO`
ZINC258837490	0.700	354.4 Da LogP 0.11 TPSA 84.8	✓ Ro5	✓ Clean	`COCCOCCOCCOCCOCCOCCOCCCO`
ZINC34307123	0.700	217.3 Da LogP 0.78 TPSA 70.9	✓ Ro5	✓ Clean	`CNC(=O)[C@@H](N)Cc1c[nH]c2ccccc12`
ZINC34482181	0.700	217.3 Da LogP 0.78 TPSA 70.9	✓ Ro5	✓ Clean	`CNC(=O)[C@H](N)Cc1c[nH]c2ccccc12`
ZINC52968847	0.700	232.3 Da LogP 1.60 TPSA 68.1	✓ Ro5	✓ Clean	`CCOC(=O)[C@@H](N)Cc1c[nH]c2ccccc12`
ZINC53943847	0.700	232.3 Da LogP 1.60 TPSA 68.1	✓ Ro5	✓ Clean	`CCOC(=O)[C@H](N)Cc1c[nH]c2ccccc12`

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.