Protein profile

KP13_02731

Glutathione synthetase

Genome: KpKP13

Gene: AHE42701.1 gshB Structure source: AlphaFold + ColabFold UniProt A0A0H3GXI6

Export view

Amino acids 316

Annotations 6

Features 21

PDB binders 1

Druggability 0.974

Overview

Basic information about this protein and its source genome.

Accession: KP13_02731
Assembly: Klebsiella pneumoniae subsp. pneumoniae Kp13, complete sequence
Gene: AHE42701.1 gshB
Status: annotated
Amino acids: 316
Structure source: AlphaFold + ColabFold

6.3.2.3

GO:0005524 Binding to ATP, adenosine 5'-triphosphate, a universally important coenzyme and enzyme regulator. GO:0004363 Catalysis of the reaction: L-gamma-glutamyl-L-cysteine + ATP + glycine = ADP + glutathione + 2 H+ + phosphate. GO:0006750 The chemical reactions and pathways resulting in the formation of glutathione, the tripeptide glutamylcysteinylglycine, which acts as a coenzyme for some enzymes and as an antioxidant in the protection of sulfhydryl groups in enzymes and other proteins. GO:0046872 Binding to a metal ion. 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 (%): 90.19
DEG E-value: 0.0
Localization: Cytoplasmic
ColabFold pLDDT: 96.79

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 0.974

Structure A0A0H3GXI6

Pocket Pocket 1

P2Rank 0.953

Structure A0A0H3GXI6

Pocket Pocket 1

ColabFold model

FPocket 0.901 · Pocket 1

P2Rank 0.94 · Pocket 1

Core conservation Conserved core gene

Roary core

CoreCruncher core

Gut microbiome 157 / 4744 genomes with a hit

Normalized 0.033

Sequence

Primary amino-acid sequence viewer.

Functional Annotations

Enzyme classification and Gene Ontology terms linked to this protein.

1 EC 5 GO

Enzyme Commission (EC)

6.3.2.3

Gene Ontology (GO)

GO:0005524 Binding to ATP, adenosine 5'-triphosphate, a universally important coenzyme and enzyme regulator.
GO:0004363 Catalysis of the reaction: L-gamma-glutamyl-L-cysteine + ATP + glycine = ADP + glutathione + 2 H+ + phosphate.
GO:0006750 The chemical reactions and pathways resulting in the formation of glutathione, the tripeptide glutamylcysteinylglycine, which acts as a coenzyme for some enzymes and as an antioxidant in the protection of sulfhydryl groups in enzymes and other proteins.
GO:0046872 Binding to a metal ion.
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.

21 records

Show feature table

Start	End	DB	Term	Name
7	114	Gene3D	G3DSA:3.40.50.20	-
137	201	FunFam	G3DSA:3.30.1490.20:FF:000009	Glutathione synthetase
137	201	Gene3D	G3DSA:3.30.1490.20	-
137	201	InterPro	IPR013815	ATP-grasp fold, subdomain 1
115	296	Gene3D	G3DSA:3.30.470.20	-
125	311	ProSiteProfiles	PS50975	ATP-grasp fold profile.
125	311	InterPro	IPR011761	ATP-grasp fold
1	314	PANTHER	PTHR21621	RIBOSOMAL PROTEIN S6 MODIFICATION PROTEIN
123	314	SUPERFAMILY	SSF56059	Glutathione synthetase ATP-binding domain-like
2	120	Pfam	PF02951	Prokaryotic glutathione synthetase, N-terminal domain
2	120	InterPro	IPR004215	Prokaryotic glutathione synthetase, N-terminal
2	312	NCBIfam	TIGR01380	glutathione synthase
2	312	InterPro	IPR006284	Glutathione synthetase, prokaryotic
7	115	FunFam	G3DSA:3.40.50.20:FF:000009	Glutathione synthetase
180	300	FunFam	G3DSA:3.30.470.20:FF:000010	Glutathione synthetase
1	316	Hamap	MF_00162	Glutathione synthetase [gshB].
1	316	InterPro	IPR006284	Glutathione synthetase, prokaryotic
2	122	SUPERFAMILY	SSF52440	PreATP-grasp domain
2	122	InterPro	IPR016185	Pre-ATP-grasp domain superfamily
124	296	Pfam	PF02955	Prokaryotic glutathione synthetase, ATP-grasp domain
124	296	InterPro	IPR004218	Prokaryotic glutathione synthetase, ATP-binding

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_A0A0H3GXI6	AlphaFold	—	—	full sequence	—	Viewing
ColabFold KP13_02731	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				0.974

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				16.6	0.782
2				5.5	0.262

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				0.901

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				14.81	0.735
2				5.76	0.28

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.

51 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
GSH	1GSA	P04425	307.3 Da LogP -2.21 TPSA 158.8	1 viol.	✓ Clean	`C(CC(=O)N[C@@H](CS)C(=O)NCC(=O)O)[C@@H](C(=O)O)N`

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
ZINC3830891	1.000	307.3 Da LogP -2.21 TPSA 158.8	1 viol.	✓ Clean	`N[C@@H](CCC(=O)N[C@@H](CS)C(=O)NCC(=O)O)C(=O)O`
ZINC3830892	1.000	307.3 Da LogP -2.21 TPSA 158.8	1 viol.	✓ Clean	`N[C@@H](CCC(=O)N[C@H](CS)C(=O)NCC(=O)O)C(=O)O`
ZINC3830893	1.000	307.3 Da LogP -2.21 TPSA 158.8	1 viol.	✓ Clean	`N[C@H](CCC(=O)N[C@@H](CS)C(=O)NCC(=O)O)C(=O)O`
ZINC3830894	1.000	307.3 Da LogP -2.21 TPSA 158.8	1 viol.	✓ Clean	`N[C@H](CCC(=O)N[C@H](CS)C(=O)NCC(=O)O)C(=O)O`
ZINC5828410	0.821	306.3 Da LogP -2.81 TPSA 164.6	1 viol.	✓ Clean	`NC(=O)CNC(=O)[C@H](CS)NC(=O)CC[C@H](N)C(=O)O`
ZINC13549503	0.780	321.4 Da LogP -2.12 TPSA 147.8	✓ Ro5	✓ Clean	`COC(=O)[C@@H](N)CCC(=O)N[C@@H](CS)C(=O)NCC(=O)O`
ZINC4096455	0.775	321.4 Da LogP -1.82 TPSA 158.8	1 viol.	✓ Clean	`N[C@@H](CCC(=O)N[C@@H](CS)C(=O)NCCC(=O)O)C(=O)O`
ZINC2554974	0.750	289.3 Da LogP -1.73 TPSA 158.8	✓ Ro5	✓ Clean	`CC[C@H](NC(=O)CC[C@H](N)C(=O)O)C(=O)NCC(=O)O`
ZINC3870040	0.750	250.3 Da LogP -1.32 TPSA 129.7	✓ Ro5	✓ Clean	`N[C@@H](CCC(=O)N[C@@H](CS)C(=O)O)C(=O)O`
ZINC3870041	0.750	250.3 Da LogP -1.32 TPSA 129.7	✓ Ro5	✓ Clean	`N[C@@H](CCC(=O)N[C@H](CS)C(=O)O)C(=O)O`
ZINC3870042	0.750	250.3 Da LogP -1.32 TPSA 129.7	✓ Ro5	✓ Clean	`N[C@H](CCC(=O)N[C@@H](CS)C(=O)O)C(=O)O`
ZINC3870043	0.750	250.3 Da LogP -1.32 TPSA 129.7	✓ Ro5	✓ Clean	`N[C@H](CCC(=O)N[C@H](CS)C(=O)O)C(=O)O`
ZINC3778474	0.727	349.4 Da LogP -1.34 TPSA 147.8	✓ Ro5	✓ Clean	`CC(C)OC(=O)CNC(=O)[C@H](CS)NC(=O)CC[C@H](N)C(=O…`
ZINC3778476	0.727	335.4 Da LogP -1.73 TPSA 147.8	✓ Ro5	✓ Clean	`CCOC(=O)CNC(=O)[C@H](CS)NC(=O)CC[C@H](N)C(=O)O`
ZINC5497203	0.727	335.4 Da LogP -1.73 TPSA 147.8	✓ Ro5	✓ Clean	`CCOC(=O)CNC(=O)[C@@H](CS)NC(=O)CC[C@H](N)C(=O)O`
ZINC5497237	0.727	335.4 Da LogP -1.73 TPSA 147.8	✓ Ro5	✓ Clean	`CCOC(=O)CNC(=O)[C@@H](CS)NC(=O)CC[C@@H](N)C(=O)O`
ZINC5497239	0.727	335.4 Da LogP -1.73 TPSA 147.8	✓ Ro5	✓ Clean	`CCOC(=O)CNC(=O)[C@H](CS)NC(=O)CC[C@@H](N)C(=O)O`
ZINC1532230	0.714	321.4 Da LogP -1.77 TPSA 158.8	✓ Ro5	✓ Clean	`CSC[C@H](NC(=O)CC[C@H](N)C(=O)O)C(=O)NCC(=O)O`
ZINC4556979	0.714	321.4 Da LogP -1.77 TPSA 158.8	✓ Ro5	✓ Clean	`CSC[C@@H](NC(=O)CC[C@H](N)C(=O)O)C(=O)NCC(=O)O`
ZINC4556980	0.714	321.4 Da LogP -1.77 TPSA 158.8	✓ Ro5	✓ Clean	`CSC[C@H](NC(=O)CC[C@@H](N)C(=O)O)C(=O)NCC(=O)O`
ZINC4556981	0.714	321.4 Da LogP -1.77 TPSA 158.8	✓ Ro5	✓ Clean	`CSC[C@@H](NC(=O)CC[C@@H](N)C(=O)O)C(=O)NCC(=O)O`
ZINC1616624	0.698	355.3 Da LogP -3.25 TPSA 213.2	1 viol.	✓ Clean	`N[C@@H](CCC(=O)N[C@@H](CS(=O)(=O)O)C(=O)NCC(=O)…`
ZINC1616625	0.698	355.3 Da LogP -3.25 TPSA 213.2	1 viol.	✓ Clean	`N[C@@H](CCC(=O)N[C@H](CS(=O)(=O)O)C(=O)NCC(=O)O…`
ZINC1616626	0.698	355.3 Da LogP -3.25 TPSA 213.2	1 viol.	✓ Clean	`N[C@H](CCC(=O)N[C@@H](CS(=O)(=O)O)C(=O)NCC(=O)O…`
ZINC1616627	0.698	355.3 Da LogP -3.25 TPSA 213.2	1 viol.	✓ Clean	`N[C@H](CCC(=O)N[C@H](CS(=O)(=O)O)C(=O)NCC(=O)O)…`
ZINC12496578	0.675	275.3 Da LogP -2.12 TPSA 158.8	✓ Ro5	✓ Clean	`C[C@H](NC(=O)CC[C@H](N)C(=O)O)C(=O)NCC(=O)O`
ZINC13522300	0.667	349.4 Da LogP -1.86 TPSA 175.9	✓ Ro5	✓ Clean	`CC(=O)SC[C@H](NC(=O)CC[C@H](N)C(=O)O)C(=O)NCC(=…`
ZINC31350707	0.667	349.4 Da LogP -1.86 TPSA 175.9	✓ Ro5	✓ Clean	`CC(=O)SC[C@@H](NC(=O)CC[C@@H](N)C(=O)O)C(=O)NCC…`
ZINC31350710	0.667	349.4 Da LogP -1.86 TPSA 175.9	✓ Ro5	✓ Clean	`CC(=O)SC[C@H](NC(=O)CC[C@@H](N)C(=O)O)C(=O)NCC(…`
ZINC31350713	0.667	349.4 Da LogP -1.86 TPSA 175.9	✓ Ro5	✓ Clean	`CC(=O)SC[C@@H](NC(=O)CC[C@H](N)C(=O)O)C(=O)NCC(…`
ZINC3872731	0.667	336.3 Da LogP -1.72 TPSA 188.2	✓ Ro5	✓ Clean	`N[C@@H](CCC(=O)N[C@@H](CSN=O)C(=O)NCC(=O)O)C(=O…`
ZINC3872732	0.667	336.3 Da LogP -1.72 TPSA 188.2	✓ Ro5	✓ Clean	`N[C@@H](CCC(=O)N[C@H](CSN=O)C(=O)NCC(=O)O)C(=O)O`
ZINC3872733	0.667	336.3 Da LogP -1.72 TPSA 188.2	✓ Ro5	✓ Clean	`N[C@H](CCC(=O)N[C@@H](CSN=O)C(=O)NCC(=O)O)C(=O)O`
ZINC3872734	0.667	336.3 Da LogP -1.72 TPSA 188.2	✓ Ro5	✓ Clean	`N[C@H](CCC(=O)N[C@H](CSN=O)C(=O)NCC(=O)O)C(=O)O`
ZINC4544082	0.667	335.4 Da LogP -1.38 TPSA 158.8	✓ Ro5	✓ Clean	`CCSC[C@H](NC(=O)CC[C@H](N)C(=O)O)C(=O)NCC(=O)O`
ZINC4544083	0.667	335.4 Da LogP -1.38 TPSA 158.8	✓ Ro5	✓ Clean	`CCSC[C@@H](NC(=O)CC[C@H](N)C(=O)O)C(=O)NCC(=O)O`
ZINC4544084	0.667	335.4 Da LogP -1.38 TPSA 158.8	✓ Ro5	✓ Clean	`CCSC[C@H](NC(=O)CC[C@@H](N)C(=O)O)C(=O)NCC(=O)O`
ZINC4544085	0.667	335.4 Da LogP -1.38 TPSA 158.8	✓ Ro5	✓ Clean	`CCSC[C@@H](NC(=O)CC[C@@H](N)C(=O)O)C(=O)NCC(=O)O`
ZINC13451235	0.652	423.4 Da LogP -2.47 TPSA 233.4	1 viol.	✓ Clean	`N[C@@H](CCC(=O)N[C@@H](CS[C@H](CC(=O)O)C(=O)O)C…`
ZINC145953214	0.652	365.4 Da LogP -2.02 TPSA 179.0	1 viol.	✓ Clean	`C[C@H](O)CSC[C@@H](NC(=O)CC[C@@H](N)C(=O)O)C(=O…`
ZINC145953600	0.652	365.4 Da LogP -2.02 TPSA 179.0	1 viol.	✓ Clean	`C[C@H](O)CSC[C@H](NC(=O)CC[C@@H](N)C(=O)O)C(=O)…`
ZINC14966489	0.652	423.4 Da LogP -2.47 TPSA 233.4	1 viol.	✓ Clean	`N[C@H](CCC(=O)N[C@@H](CS[C@@H](CC(=O)O)C(=O)O)C…`
ZINC14966492	0.652	423.4 Da LogP -2.47 TPSA 233.4	1 viol.	✓ Clean	`N[C@H](CCC(=O)N[C@H](CS[C@@H](CC(=O)O)C(=O)O)C(…`
ZINC201224060	0.652	365.4 Da LogP -2.02 TPSA 179.0	1 viol.	✓ Clean	`C[C@H](O)CSC[C@@H](NC(=O)CC[C@H](N)C(=O)O)C(=O)…`
ZINC253638410	0.652	423.4 Da LogP -2.47 TPSA 233.4	1 viol.	✓ Clean	`N[C@H](CCC(=O)N[C@H](CS[C@H](CC(=O)O)C(=O)O)C(=…`
ZINC253638411	0.652	423.4 Da LogP -2.47 TPSA 233.4	1 viol.	✓ Clean	`N[C@H](CCC(=O)N[C@@H](CS[C@H](CC(=O)O)C(=O)O)C(…`
ZINC3920510	0.652	423.4 Da LogP -2.47 TPSA 233.4	1 viol.	✓ Clean	`N[C@@H](CCC(=O)N[C@@H](CS[C@@H](CC(=O)O)C(=O)O)…`
ZINC77300920	0.652	365.4 Da LogP -2.02 TPSA 179.0	1 viol.	✓ Clean	`C[C@H](O)CSC[C@H](NC(=O)CC[C@H](N)C(=O)O)C(=O)N…`
ZINC13507523	0.643	303.3 Da LogP -1.48 TPSA 158.8	✓ Ro5	✓ Clean	`CC(C)[C@H](NC(=O)CC[C@H](N)C(=O)O)C(=O)NCC(=O)O`
ZINC4899752	0.641	235.3 Da LogP -2.44 TPSA 121.5	✓ Ro5	✓ Clean	`NCC(=O)N[C@@H](CS)C(=O)NCC(=O)O`

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.