Protein profile

KP13_00817

Holo-[acyl-carrier-protein] synthase

Genome: KpKP13

Gene: acpS AHE43181.1 Structure source: AlphaFold + ColabFold UniProt A0A0H3GW85

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Amino acids 126

Annotations 5

Features 13

PDB binders 4

Druggability 0.047

Overview

Basic information about this protein and its source genome.

Accession: KP13_00817
Assembly: Klebsiella pneumoniae subsp. pneumoniae Kp13, complete sequence
Gene: acpS AHE43181.1
Status: annotated
Amino acids: 126
Structure source: AlphaFold + ColabFold

2.7.8.7

GO:0008897 Catalysis of the reaction: CoA + substrate-serine = adenosine 3',5'-bisphosphate + substrate-serine-4'-phosphopantetheine. The transfer of the 4'-phosphopantetheine (Ppant) co-factor from coenzyme A to the hydroxyl side chain of the serine residue of acyl- or peptidyl-carrier protein (ACP or PCP) to convert them from the apo to the holo form. GO:0000287 Binding to a magnesium (Mg) ion. GO:0006633 The chemical reactions and pathways resulting in the formation of a fatty acid, any of the aliphatic monocarboxylic acids that can be liberated by hydrolysis from naturally occurring fats and oils. Fatty acids are predominantly straight-chain acids of 4 to 24 carbon atoms, which may be saturated or unsaturated; branched fatty acids and hydroxy fatty acids also occur, and very long chain acids of over 30 carbons are found in waxes. GO:0005737 The contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.

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 (%): 87.302
DEG E-value: 1.77e-79
Localization: Cytoplasmic
ColabFold pLDDT: 96.69

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 0.047

Structure A0A0H3GW85

Pocket Pocket 2

P2Rank 0.139

Structure A0A0H3GW85

Pocket Pocket 1

ColabFold model

FPocket 0.49 · Pocket 1

P2Rank 0.135 · Pocket 1

Core conservation Conserved core gene

Roary core

CoreCruncher core

Gut microbiome 115 / 4744 genomes with a hit

Normalized 0.024

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)

2.7.8.7

Gene Ontology (GO)

GO:0008897 Catalysis of the reaction: CoA + substrate-serine = adenosine 3',5'-bisphosphate + substrate-serine-4'-phosphopantetheine. The transfer of the 4'-phosphopantetheine (Ppant) co-factor from coenzyme A to the hydroxyl side chain of the serine residue of acyl- or peptidyl-carrier protein (ACP or PCP) to convert them from the apo to the holo form.
GO:0000287 Binding to a magnesium (Mg) ion.
GO:0006633 The chemical reactions and pathways resulting in the formation of a fatty acid, any of the aliphatic monocarboxylic acids that can be liberated by hydrolysis from naturally occurring fats and oils. Fatty acids are predominantly straight-chain acids of 4 to 24 carbon atoms, which may be saturated or unsaturated; branched fatty acids and hydroxy fatty acids also occur, and very long chain acids of over 30 carbons are found in waxes.
GO:0005737 The contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.

Sequence Features

Domain/signature hits from InterPro and related databases.

13 records

Show feature table

Start	End	DB	Term	Name
4	126	Hamap	MF_00101	Holo-[acyl-carrier-protein] synthase [acpS].
4	126	InterPro	IPR002582	Holo-[acyl carrier protein] synthase
2	126	NCBIfam	TIGR00516	holo-[acyl-carrier-protein] synthase
2	126	InterPro	IPR002582	Holo-[acyl carrier protein] synthase
3	126	NCBIfam	TIGR00556	phosphopantetheine--protein transferase domain
3	126	InterPro	IPR004568	Phosphopantetheine-protein transferase domain
1	126	Gene3D	G3DSA:3.90.470.20	-
1	126	InterPro	IPR037143	4'-phosphopantetheinyl transferase domain superfamily
1	126	FunFam	G3DSA:3.90.470.20:FF:000001	Holo-[acyl-carrier-protein] synthase
5	122	Pfam	PF01648	4'-phosphopantetheinyl transferase superfamily
5	122	InterPro	IPR008278	4'-phosphopantetheinyl transferase domain
3	125	SUPERFAMILY	SSF56214	4'-phosphopantetheinyl transferase
3	125	InterPro	IPR037143	4'-phosphopantetheinyl transferase domain superfamily

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...

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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_A0A0H3GW85	AlphaFold	—	—	full sequence	—	Viewing
ColabFold KP13_00817	ColabFold	—	—	full sequence	—	Loaded

Pocket details FPocket · P2Rank — toggle visibility and zoom from here, or open full viewer

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				2.72	0.082

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				0.49

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				2.66	0.078

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.

58 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
A3P	3HYK	Q81JG3	427.2 Da LogP -1.75 TPSA 232.6	2 viol.	✓ Clean	`c1nc(c2c(n1)n(cn2)[C@H]3[C@@H]([C@@H]([C@H](O3)…`
DTT	1F7T	P96618	154.3 Da LogP -0.43 TPSA 40.5	✓ Ro5	✓ Clean	`C([C@@H]([C@H](CS)O)O)S`
MLI	4DXE	Q5HED0	102.0 Da LogP -3.12 TPSA 80.3	✓ Ro5	✓ Clean	`C(C(=O)[O-])C(=O)[O-]`
PNS	5VCB	P24224	358.4 Da LogP -0.96 TPSA 145.2	1 viol.	✓ Clean	`CC(C)(COP(=O)(O)O)[C@H](C(=O)NCCC(=O)NCCS)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
CHEMBL130657	P96618	6.89	451.3 Da LogP 4.61 TPSA 125.0	✓ Ro5	✓ Clean	`CC(=O)Nc1ccc(/N=C/c2nc(-c3ccc(C(F)(F)F)c(F)c3)o…`
CHEMBL335756	P96618	6.57	408.3 Da LogP 4.96 TPSA 95.9	✓ Ro5	✓ Clean	`Cc1ccc(/N=C/c2nc(-c3ccc(C(F)(F)F)c(F)c3)oc2O)c(…`
CHEMBL371442	P96618	6.09	377.8 Da LogP 4.50 TPSA 83.5	✓ Ro5	✓ Clean	`O=C(O)c1cc(Cl)ccc1NC(=O)c1cccc2c1-c1ccccc1C2=O`
CHEMBL130683	P96618	6.08	390.3 Da LogP 4.82 TPSA 95.9	✓ Ro5	✓ Clean	`Cc1ccc(/N=C/c2nc(-c3ccc(C(F)(F)F)cc3)oc2O)c(C(=…`

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
ZINC12501123	1.000	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	1.000	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	1.000	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	1.000	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…`
ZINC3871401	0.887	427.2 Da LogP -1.75 TPSA 232.6	2 viol.	✓ Clean	`Nc1ncnc2c1ncn2[C@H]1O[C@@H](COP(=O)(O)O)[C@@H](…`
ZINC3871402	0.887	427.2 Da LogP -1.75 TPSA 232.6	2 viol.	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@@H](COP(=O)(O)O)[C@@H]…`
ZINC3871403	0.887	427.2 Da LogP -1.75 TPSA 232.6	2 viol.	✓ Clean	`Nc1ncnc2c1ncn2[C@H]1O[C@@H](COP(=O)(O)O)[C@@H](…`
ZINC3871404	0.887	427.2 Da LogP -1.75 TPSA 232.6	2 viol.	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@@H](COP(=O)(O)O)[C@@H]…`
ZINC4096223	0.887	427.2 Da LogP -1.75 TPSA 232.6	2 viol.	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@H](COP(=O)(O)O)[C@@H](…`
ZINC12958381	0.846	347.2 Da LogP -1.86 TPSA 186.1	✓ Ro5	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@H](CO)[C@@H](OP(=O)(O)…`
ZINC13546985	0.846	347.2 Da LogP -1.86 TPSA 186.1	✓ Ro5	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@H](CO)[C@H](OP(=O)(O)O…`
ZINC1631259	0.846	347.2 Da LogP -1.86 TPSA 186.1	✓ Ro5	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@H](CO)[C@@H](OP(=O)(O)…`
ZINC79090744	0.846	347.2 Da LogP -1.86 TPSA 186.1	✓ Ro5	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@H](CO)[C@H](OP(=O)(O)O…`
ZINC13518964	0.827	347.2 Da LogP -1.86 TPSA 186.1	✓ Ro5	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@@H](COP(=O)(O)O)[C@H](…`
ZINC1532515	0.827	347.2 Da LogP -1.86 TPSA 186.1	✓ Ro5	✓ Clean	`Nc1ncnc2c1ncn2[C@H]1O[C@@H](COP(=O)(O)O)[C@H](O…`
ZINC1571045	0.827	347.2 Da LogP -1.86 TPSA 186.1	✓ Ro5	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@@H](COP(=O)(O)O)[C@@H]…`
ZINC1842158	0.827	347.2 Da LogP -1.86 TPSA 186.1	✓ Ro5	✓ Clean	`Nc1ncnc2c1ncn2[C@H]1O[C@@H](COP(=O)(O)O)[C@H](O…`
ZINC2046931	0.827	347.2 Da LogP -1.86 TPSA 186.1	✓ Ro5	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@@H](COP(=O)(O)O)[C@H](…`
ZINC2126310	0.827	347.2 Da LogP -1.86 TPSA 186.1	✓ Ro5	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@H](COP(=O)(O)O)[C@@H](…`
ZINC3201891	0.827	347.2 Da LogP -1.86 TPSA 186.1	✓ Ro5	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@@H](COP(=O)(O)O)[C@@H]…`
ZINC3201893	0.827	347.2 Da LogP -1.86 TPSA 186.1	✓ Ro5	✓ Clean	`Nc1ncnc2c1ncn2[C@H]1O[C@@H](COP(=O)(O)O)[C@@H](…`
ZINC3830180	0.827	347.2 Da LogP -1.86 TPSA 186.1	✓ Ro5	✓ Clean	`Nc1ncnc2c1ncn2[C@H]1O[C@@H](COP(=O)(O)O)[C@@H](…`
ZINC3860156	0.827	347.2 Da LogP -1.86 TPSA 186.1	✓ Ro5	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@H](COP(=O)(O)O)[C@@H](…`
ZINC3977897	0.827	347.2 Da LogP -1.86 TPSA 186.1	✓ Ro5	✓ Clean	`Nc1ncnc2c1ncn2[C@H]1O[C@H](COP(=O)(O)O)[C@@H](O…`
ZINC4806442	0.827	347.2 Da LogP -1.86 TPSA 186.1	✓ Ro5	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@H](COP(=O)(O)O)[C@H](O…`
ZINC8613167	0.827	347.2 Da LogP -1.86 TPSA 186.1	✓ Ro5	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@H](COP(=O)(O)O)[C@H](O…`
ZINC13424932	0.750	347.2 Da LogP -1.86 TPSA 186.1	✓ Ro5	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@H](CO)[C@@H](O)[C@@H]1…`
ZINC13424933	0.750	347.2 Da LogP -1.86 TPSA 186.1	✓ Ro5	✓ Clean	`Nc1ncnc2c1ncn2[C@H]1O[C@H](CO)[C@@H](O)[C@@H]1O…`
ZINC2036187	0.750	347.2 Da LogP -1.86 TPSA 186.1	✓ Ro5	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@H](CO)[C@H](O)[C@H]1OP…`
ZINC3861741	0.750	347.2 Da LogP -1.86 TPSA 186.1	✓ Ro5	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@H](CO)[C@@H](O)[C@H]1O…`
ZINC44960119	0.750	347.2 Da LogP -1.86 TPSA 186.1	✓ Ro5	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@H](CO)[C@H](O)[C@@H]1O…`
ZINC4513863	0.750	347.2 Da LogP -1.86 TPSA 186.1	✓ Ro5	✓ Clean	`Nc1ncnc2c1ncn2[C@H]1O[C@@H](CO)[C@@H](O)[C@@H]1…`
ZINC4513866	0.750	347.2 Da LogP -1.86 TPSA 186.1	✓ Ro5	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@@H](CO)[C@@H](O)[C@@H]…`
ZINC12958401	0.714	331.2 Da LogP -0.83 TPSA 165.8	✓ Ro5	✓ Clean	`Nc1ncnc2c1ncn2[C@H]1C[C@@H](O)[C@@H](COP(=O)(O)…`
ZINC13538980	0.714	331.2 Da LogP -0.83 TPSA 165.8	✓ Ro5	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1C[C@@H](O)[C@@H](COP(=O)(O…`
ZINC13538982	0.714	331.2 Da LogP -0.83 TPSA 165.8	✓ Ro5	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1C[C@H](O)[C@@H](COP(=O)(O)…`
ZINC1532626	0.714	331.2 Da LogP -0.83 TPSA 165.8	✓ Ro5	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1C[C@@H](O)[C@H](COP(=O)(O)…`
ZINC1713574	0.714	331.2 Da LogP -0.83 TPSA 165.8	✓ Ro5	✓ Clean	`Nc1ncnc2c1ncn2[C@H]1C[C@H](O)[C@@H](COP(=O)(O)O…`
ZINC3869813	0.714	331.2 Da LogP -0.83 TPSA 165.8	✓ Ro5	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1C[C@H](O)[C@H](COP(=O)(O)O…`
ZINC3869814	0.714	331.2 Da LogP -0.83 TPSA 165.8	✓ Ro5	✓ Clean	`Nc1ncnc2c1ncn2[C@H]1C[C@H](O)[C@H](COP(=O)(O)O)…`
ZINC3869815	0.714	331.2 Da LogP -0.83 TPSA 165.8	✓ Ro5	✓ Clean	`Nc1ncnc2c1ncn2[C@H]1C[C@@H](O)[C@H](COP(=O)(O)O…`
ZINC4096224	0.714	346.2 Da LogP -1.90 TPSA 191.9	✓ Ro5	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@H](CO[P@](N)(=O)O)[C@@…`
ZINC12360703	0.707	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	0.707	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	0.707	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	0.707	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	0.707	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	0.707	427.2 Da LogP -1.75 TPSA 232.6	2 viol.	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@@H](CO[P@@](=O)(O)OP(=…`
ZINC8586019	0.707	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	0.707	427.2 Da LogP -1.75 TPSA 232.6	2 viol.	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@@H](CO[P@@](=O)(O)OP(=…`

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.