Protein profile

KP13_00516

Putative lysyl-tRNA synthetase

Genome: KpKP13

Gene: AHE46750.1 poxA Structure source: AlphaFold + ColabFold UniProt A0A0H3GQI0

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Amino acids 325

Annotations 11

Features 18

PDB binders 8

Druggability 0.207

Overview

Basic information about this protein and its source genome.

Accession: KP13_00516
Assembly: Klebsiella pneumoniae subsp. pneumoniae Kp13, complete sequence
Gene: AHE46750.1 poxA
Status: annotated
Amino acids: 325
Structure source: AlphaFold + ColabFold

6.3.2.-

GO:0004812 Catalysis of the formation of aminoacyl-tRNA from ATP, amino acid, and tRNA with the release of diphosphate and AMP. GO:0005737 The contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures. GO:0006430 The process of coupling lysine to lysyl-tRNA, catalyzed by lysyl-tRNA synthetase. The lysyl-tRNA synthetase is a class-II synthetase. The activated amino acid is transferred to the 3'-OH group of a lysine-accetping tRNA. GO:0006418 The synthesis of aminoacyl tRNA by the formation of an ester bond between the 3'-hydroxyl group of the most 3' adenosine of the tRNA and the alpha carboxylic acid group of an amino acid, to be used in ribosome-mediated polypeptide synthesis. GO:0005524 Binding to ATP, adenosine 5'-triphosphate, a universally important coenzyme and enzyme regulator. GO:0000166 Binding to a nucleotide, any compound consisting of a nucleoside that is esterified with (ortho)phosphate or an oligophosphate at any hydroxyl group on the ribose or deoxyribose.

Target profile

Computed evidence for target prioritization.

Human off-target: hit
Human identity (%): 27.811
Human E-value: 6.3999999999999995e-31
Gut microbiome off-target: hit
Essential (DEG): Y
DEG identity (%): 92.923
DEG E-value: 0.0
Localization: Cytoplasmic
ColabFold pLDDT: 96.95

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 0.207

Structure A0A0H3GQI0

Pocket Pocket 1

P2Rank 0.949

Structure A0A0H3GQI0

Pocket Pocket 1

ColabFold model

FPocket 0.539 · Pocket 7

P2Rank 0.954 · Pocket 1

Core conservation Conserved core gene

Roary core

CoreCruncher core

Gut microbiome 142 / 4744 genomes with a hit

Normalized 0.03

Sequence

Primary amino-acid sequence viewer.

Functional Annotations

Enzyme classification and Gene Ontology terms linked to this protein.

1 EC 10 GO

Enzyme Commission (EC)

6.3.2.-

Gene Ontology (GO)

GO:0004812 Catalysis of the formation of aminoacyl-tRNA from ATP, amino acid, and tRNA with the release of diphosphate and AMP.
GO:0005737 The contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
GO:0006430 The process of coupling lysine to lysyl-tRNA, catalyzed by lysyl-tRNA synthetase. The lysyl-tRNA synthetase is a class-II synthetase. The activated amino acid is transferred to the 3'-OH group of a lysine-accetping tRNA.
GO:0006418 The synthesis of aminoacyl tRNA by the formation of an ester bond between the 3'-hydroxyl group of the most 3' adenosine of the tRNA and the alpha carboxylic acid group of an amino acid, to be used in ribosome-mediated polypeptide synthesis.
GO:0005524 Binding to ATP, adenosine 5'-triphosphate, a universally important coenzyme and enzyme regulator.
GO:0000166 Binding to a nucleotide, any compound consisting of a nucleoside that is esterified with (ortho)phosphate or an oligophosphate at any hydroxyl group on the ribose or deoxyribose.
GO:0004824 Catalysis of the reaction: ATP + L-lysine + tRNA(Lys) = AMP + diphosphate + L-lysyl-tRNA(Lys).
GO:0005829 The part of the cytoplasm that does not contain organelles but which does contain other particulate matter, such as protein complexes.
GO:0016880 Catalysis of the ligation of an acid to ammonia (NH4+) or an amide via a carbon-nitrogen bond, with the concomitant hydrolysis of the diphosphate bond in ATP or a similar triphosphate.
GO:0000049 Binding to a transfer RNA.

Sequence Features

Domain/signature hits from InterPro and related databases.

18 records

Show feature table

Start	End	DB	Term	Name
1	324	Gene3D	G3DSA:3.30.930.10	Bira Bifunctional Protein; Domain 2
1	324	InterPro	IPR045864	Class II Aminoacyl-tRNA synthetase/Biotinyl protein ligase (BPL) and lipoyl protein ligase (LPL)
15	321	Pfam	PF00152	tRNA synthetases class II (D, K and N)
15	321	InterPro	IPR004364	Aminoacyl-tRNA synthetase, class II (D/K/N)
17	320	NCBIfam	TIGR00462	EF-P lysine aminoacylase EpmA
17	320	InterPro	IPR004525	Elongation factor P--(R)-beta-lysine ligase
99	116	PRINTS	PR00982	Lysyl-tRNA synthetase signature
99	116	InterPro	IPR018149	Lysyl-tRNA synthetase, class II, C-terminal
31	41	PRINTS	PR00982	Lysyl-tRNA synthetase signature
31	41	InterPro	IPR018149	Lysyl-tRNA synthetase, class II, C-terminal
149	322	PANTHER	PTHR42918	LYSYL-TRNA SYNTHETASE
2	324	FunFam	G3DSA:3.30.930.10:FF:000017	Elongation factor P--(R)-beta-lysine ligase
19	325	ProSiteProfiles	PS50862	Aminoacyl-transfer RNA synthetases class-II family profile.
19	325	InterPro	IPR006195	Aminoacyl-tRNA synthetase, class II
2	325	Hamap	MF_00174	Elongation factor P--(R)-beta-lysine ligase [epmA].
2	325	InterPro	IPR004525	Elongation factor P--(R)-beta-lysine ligase
14	320	SUPERFAMILY	SSF55681	Class II aaRS and biotin synthetases
14	320	InterPro	IPR045864	Class II Aminoacyl-tRNA synthetase/Biotinyl protein ligase (BPL) and lipoyl protein ligase (LPL)

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_A0A0H3GQI0	AlphaFold	—	—	full sequence	—	Viewing
ColabFold KP13_00516	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				0.207

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				26.92	0.917
2				2.67	0.079

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
7				0.539

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				24.93	0.902
2				2.54	0.071

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
ACP	1E22	P0A8N5	505.2 Da LogP -1.52 TPSA 269.9	3 viol.	✓ Clean	`c1nc(c2c(n1)n(cn2)[C@H]3[C@@H]([C@@H]([C@H](O3)…`
ADN	6BNI	Q5CR27	267.2 Da LogP -1.98 TPSA 139.5	✓ Ro5	✓ Clean	`c1nc(c2c(n1)n(cn2)[C@H]3[C@@H]([C@@H]([C@H](O3)…`
B4P	5YZX	P0A8N5	836.4 Da LogP -2.45 TPSA 434.0	3 viol.	✓ Clean	`c1nc(c2c(n1)n(cn2)[C@H]3[C@@H]([C@@H]([C@H](O3)…`
FYB	6HCW	Q5CR27	355.3 Da LogP 2.60 TPSA 79.5	✓ Ro5	✓ Clean	`c1cc2c(cc1F)C(=O)C=C(O2)C(=O)NCC3(CCC(CC3)(F)F)O`
KAA	3A5Y	P0A8N7	474.5 Da LogP -3.14 TPSA 243.8	2 viol.	✓ Clean	`c1nc(c2c(n1)n(cn2)[C@H]3[C@@H]([C@@H]([C@H](O3)…`
KRS	6AQG	A0PV47	292.3 Da LogP 2.53 TPSA 76.0	✓ Ro5	✓ Clean	`C[C@H]1CCC[C@@H](O1)C[C@H]2Cc3cc(cc(c3C(=O)O2)O…`
LYN	3A74	Q9RHV9	146.2 Da LogP -1.79 TPSA 96.8	✓ Ro5	✓ Clean	`C(CC[NH3+])C[C@@H](C(=O)N)N`
XAH	3E9I	Q9RHV9	490.4 Da LogP -2.35 TPSA 256.2	2 viol.	✓ Clean	`c1nc(c2c(n1)n(cn2)[C@H]3[C@@H]([C@@H]([C@H](O3)…`

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
ZINC1772635095	1.000	355.3 Da LogP 2.60 TPSA 79.5	✓ Ro5	✓ Clean	`O=C(NCC1(O)CCC(F)(F)CC1)c1cc(=O)c2cc(F)ccc2o1`
ZINC203258028	1.000	292.3 Da LogP 2.53 TPSA 76.0	✓ Ro5	✓ Clean	`C[C@@H]1CCC[C@H](C[C@H]2Cc3cc(O)cc(O)c3C(=O)O2)…`
ZINC28539087	1.000	292.3 Da LogP 2.53 TPSA 76.0	✓ Ro5	✓ Clean	`C[C@H]1CCC[C@H](C[C@H]2Cc3cc(O)cc(O)c3C(=O)O2)O1`
ZINC45301277	1.000	292.3 Da LogP 2.53 TPSA 76.0	✓ Ro5	✓ Clean	`C[C@@H]1CCC[C@@H](C[C@H]2Cc3cc(O)cc(O)c3C(=O)O2…`
ZINC5735691	1.000	292.3 Da LogP 2.53 TPSA 76.0	✓ Ro5	✓ Clean	`C[C@@H]1CCC[C@H](C[C@@H]2Cc3cc(O)cc(O)c3C(=O)O2…`
ZINC5735704	1.000	292.3 Da LogP 2.53 TPSA 76.0	✓ Ro5	✓ Clean	`C[C@@H]1CCC[C@@H](C[C@@H]2Cc3cc(O)cc(O)c3C(=O)O…`
ZINC12360002	0.922	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	0.922	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	0.922	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	0.922	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	0.922	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	0.922	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	0.922	427.2 Da LogP -1.75 TPSA 232.6	2 viol.	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@@H](CO[P@@](=O)(O)OP(=…`
ZINC8586019	0.922	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	0.922	427.2 Da LogP -1.75 TPSA 232.6	2 viol.	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@@H](CO[P@@](=O)(O)OP(=…`
ZINC8586021	0.922	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	0.922	427.2 Da LogP -1.75 TPSA 232.6	2 viol.	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@@H](CO[P@@](=O)(O)OP(=…`
ZINC13518964	0.843	347.2 Da LogP -1.86 TPSA 186.1	✓ Ro5	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@@H](COP(=O)(O)O)[C@H](…`
ZINC1532515	0.843	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	0.843	347.2 Da LogP -1.86 TPSA 186.1	✓ Ro5	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@@H](COP(=O)(O)O)[C@@H]…`
ZINC1842158	0.843	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	0.843	347.2 Da LogP -1.86 TPSA 186.1	✓ Ro5	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@@H](COP(=O)(O)O)[C@H](…`
ZINC2126310	0.843	347.2 Da LogP -1.86 TPSA 186.1	✓ Ro5	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@H](COP(=O)(O)O)[C@@H](…`
ZINC3201891	0.843	347.2 Da LogP -1.86 TPSA 186.1	✓ Ro5	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@@H](COP(=O)(O)O)[C@@H]…`
ZINC3201893	0.843	347.2 Da LogP -1.86 TPSA 186.1	✓ Ro5	✓ Clean	`Nc1ncnc2c1ncn2[C@H]1O[C@@H](COP(=O)(O)O)[C@@H](…`
ZINC3830180	0.843	347.2 Da LogP -1.86 TPSA 186.1	✓ Ro5	✓ Clean	`Nc1ncnc2c1ncn2[C@H]1O[C@@H](COP(=O)(O)O)[C@@H](…`
ZINC3860156	0.843	347.2 Da LogP -1.86 TPSA 186.1	✓ Ro5	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@H](COP(=O)(O)O)[C@@H](…`
ZINC3977897	0.843	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	0.843	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	0.843	347.2 Da LogP -1.86 TPSA 186.1	✓ Ro5	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@H](COP(=O)(O)O)[C@H](O…`
ZINC4096224	0.827	346.2 Da LogP -1.90 TPSA 191.9	✓ Ro5	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@H](CO[P@](N)(=O)O)[C@@…`
ZINC12503850	0.818	427.3 Da LogP -2.04 TPSA 229.4	1 viol.	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@H](CO[P@](=O)(O)OS(=O)…`
ZINC141161066	0.818	427.3 Da LogP -2.04 TPSA 229.4	1 viol.	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@H](CO[P@](=O)(O)OS(=O)…`
ZINC141163786	0.818	427.3 Da LogP -2.04 TPSA 229.4	1 viol.	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@H](CO[P@](=O)(O)OS(=O)…`
ZINC4228246	0.818	427.3 Da LogP -2.04 TPSA 229.4	1 viol.	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@H](CO[P@@](=O)(O)OS(=O…`
ZINC168710640	0.809	474.5 Da LogP -4.00 TPSA 260.9	2 viol.	✓ Clean	`NC(=O)CC[C@H](N)C(=O)NS(=O)(=O)OC[C@H]1O[C@@H](…`
ZINC168710738	0.809	474.5 Da LogP -4.00 TPSA 260.9	2 viol.	✓ Clean	`NC(=O)CC[C@H](N)C(=O)NS(=O)(=O)OC[C@H]1O[C@@H](…`
ZINC105372833	0.808	345.3 Da LogP -1.93 TPSA 197.6	✓ Ro5	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@H](COP(N)(N)=O)[C@H](O…`
ZINC105372837	0.808	345.3 Da LogP -1.93 TPSA 197.6	✓ Ro5	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@H](COP(N)(N)=O)[C@H](O…`
ZINC17107643	0.808	345.3 Da LogP -1.93 TPSA 197.6	✓ Ro5	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@H](COP(N)(N)=O)[C@@H](…`
ZINC204538551	0.808	345.3 Da LogP -1.93 TPSA 197.6	✓ Ro5	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@H](COP(N)(N)=O)[C@@H](…`
ZINC31475423	0.789	434.3 Da LogP -2.99 TPSA 238.4	2 viol.	✓ Clean	`Nc1ncnc2c1ncn2[C@H]1O[C@H](CO[P@@](=O)(O)OC(=O)…`
ZINC105469665	0.782	425.2 Da LogP -1.64 TPSA 223.4	2 viol.	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@H](CO[P@@](=O)(O)CP(=O…`
ZINC13527614	0.782	425.2 Da LogP -1.64 TPSA 223.4	2 viol.	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@H](CO[P@](=O)(O)CP(=O)…`
ZINC219330894	0.782	425.2 Da LogP -1.64 TPSA 223.4	2 viol.	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@H](CO[P@](=O)(O)CP(=O)…`
ZINC3873852	0.782	425.2 Da LogP -1.64 TPSA 223.4	2 viol.	✓ Clean	`Nc1ncnc2c1ncn2[C@H]1O[C@@H](CO[P@](=O)(O)CP(=O)…`
ZINC3873853	0.782	425.2 Da LogP -1.64 TPSA 223.4	2 viol.	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@@H](CO[P@](=O)(O)CP(=O…`
ZINC3873854	0.782	425.2 Da LogP -1.64 TPSA 223.4	2 viol.	✓ Clean	`Nc1ncnc2c1ncn2[C@H]1O[C@@H](CO[P@](=O)(O)CP(=O)…`
ZINC3873855	0.782	425.2 Da LogP -1.64 TPSA 223.4	2 viol.	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@@H](CO[P@](=O)(O)CP(=O…`
ZINC1083817667	0.768	459.5 Da LogP -2.22 TPSA 217.8	1 viol.	✓ Clean	`CC(C)C[C@@H](N)C(=O)NS(=O)(=O)OC[C@H]1O[C@@H](n…`

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.