Protein profile

KP13_31833

Isoleucyl-tRNA synthetase

Genome: KpKP13

Gene: AHE46413.1 ileS Structure source: AlphaFold + ColabFold UniProt A0A0H3GRH0
Amino acids 938
Annotations 11
Features 42
PDB binders 3
Druggability 0.944

Overview

Basic information about this protein and its source genome.

Accession
KP13_31833
Gene
AHE46413.1 ileS
Status
annotated
Amino acids
938
Structure source
AlphaFold + ColabFold

Target profile

Computed evidence for target prioritization.

Human off-target
hit
Human identity (%)
36.66
Human E-value
0.0
Gut microbiome off-target
hit
Essential (DEG)
Y
DEG identity (%)
92.111
DEG E-value
0.0
Localization
Cytoplasmic
ColabFold pLDDT
93.83

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 0.944
Structure A0A0H3GRH0
Pocket Pocket 36
P2Rank 0.953
Structure A0A0H3GRH0
Pocket Pocket 1
ColabFold model
FPocket 0.809 · Pocket 12
P2Rank 0.912 · Pocket 1
Core conservation Conserved core gene
Roary core
CoreCruncher core
Gut microbiome 207 / 4744 genomes with a hit
Normalized 0.044

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)

1

Gene Ontology (GO)

10
  • GO:0004822 Catalysis of the reaction: L-isoleucine + ATP + tRNA(Ile) = L-isoleucyl-tRNA(Ile) + AMP + diphosphate + 2 H+.
  • GO:0002161 The hydrolysis of an incorrectly aminoacylated tRNA.
  • GO:0004812 Catalysis of the formation of aminoacyl-tRNA from ATP, amino acid, and tRNA with the release of diphosphate and AMP.
  • GO:0000049 Binding to a transfer RNA.
  • 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:0006428 The process of coupling isoleucine to isoleucyl-tRNA, catalyzed by isoleucyl-tRNA synthetase. The isoleucyl-tRNA synthetase is a class-I synthetase. The activated amino acid is transferred to the 2'-OH group of a isoleucine-accetping tRNA. The 2'-O-aminoacyl-tRNA will ultimately migrate to the 3' position via transesterification.
  • 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:0005829 The part of the cytoplasm that does not contain organelles but which does contain other particulate matter, such as protein complexes.
  • GO:0008270 Binding to a zinc ion (Zn).

Sequence Features

Domain/signature hits from InterPro and related databases.

42 records
Show feature table
Start End DB Term Name
2 933 PANTHER PTHR42765 SOLEUCYL-TRNA SYNTHETASE
898 926 Pfam PF06827 Zinc finger found in FPG and IleRS
898 926 InterPro IPR010663 Zinc finger, FPG/IleRS-type
640 820 CDD cd07960 Anticodon_Ia_Ile_BEm
640 820 InterPro IPR033708 Isoleucyl tRNA synthetase type 1, anticodon-binding domain
641 930 FunFam G3DSA:1.10.730.20:FF:000001 Isoleucine--tRNA ligase
204 403 SUPERFAMILY SSF50677 ValRS/IleRS/LeuRS editing domain
204 403 InterPro IPR009008 Valyl/Leucyl/Isoleucyl-tRNA synthetase, editing domain
58 69 ProSitePatterns PS00178 Aminoacyl-transfer RNA synthetases class-I signature.
58 69 InterPro IPR001412 Aminoacyl-tRNA synthetase, class I, conserved site
381 638 Gene3D G3DSA:3.40.50.620 HUPs
381 638 InterPro IPR014729 Rossmann-like alpha/beta/alpha sandwich fold
3 648 SUPERFAMILY SSF52374 Nucleotidylyl transferase
526 539 PRINTS PR00984 Isoleucyl-tRNA synthetase signature
526 539 InterPro IPR002301 Isoleucine-tRNA ligase
51 62 PRINTS PR00984 Isoleucyl-tRNA synthetase signature
51 62 InterPro IPR002301 Isoleucine-tRNA ligase
238 261 PRINTS PR00984 Isoleucyl-tRNA synthetase signature
238 261 InterPro IPR002301 Isoleucine-tRNA ligase
401 416 PRINTS PR00984 Isoleucyl-tRNA synthetase signature
401 416 InterPro IPR002301 Isoleucine-tRNA ligase
561 570 PRINTS PR00984 Isoleucyl-tRNA synthetase signature
561 570 InterPro IPR002301 Isoleucine-tRNA ligase
379 638 FunFam G3DSA:3.40.50.620:FF:000048 Isoleucine--tRNA ligase
685 840 Pfam PF08264 Anticodon-binding domain of tRNA ligase
685 840 InterPro IPR013155 Methionyl/Valyl/Leucyl/Isoleucyl-tRNA synthetase, anticodon-binding
2 929 Hamap MF_02002 Isoleucine--tRNA ligase [ileS].
2 929 InterPro IPR023585 Isoleucine-tRNA ligase, type 1
49 640 CDD cd00818 IleRS_core
19 216 Gene3D G3DSA:3.40.50.620 HUPs
19 216 InterPro IPR014729 Rossmann-like alpha/beta/alpha sandwich fold
28 640 Pfam PF00133 tRNA synthetases class I (I, L, M and V)
28 640 InterPro IPR002300 Aminoacyl-tRNA synthetase, class Ia
15 843 NCBIfam TIGR00392 isoleucine--tRNA ligase
15 843 InterPro IPR002301 Isoleucine-tRNA ligase
652 929 SUPERFAMILY SSF47323 Anticodon-binding domain of a subclass of class I aminoacyl-tRNA synthetases
652 929 InterPro IPR009080 Aminoacyl-tRNA synthetase, class Ia, anticodon-binding
18 214 FunFam G3DSA:3.40.50.620:FF:000042 Isoleucine--tRNA ligase
640 930 Gene3D G3DSA:1.10.730.20 -
217 380 Gene3D G3DSA:3.90.740.10 -
217 380 InterPro IPR009008 Valyl/Leucyl/Isoleucyl-tRNA synthetase, editing domain
215 375 FunFam G3DSA:3.90.740.10:FF:000002 Isoleucine--tRNA ligase

3D Structure

Selected loaded structure. Experimental PDB entries may cover only a portion of the sequence; predicted models typically cover the full protein.

3D visualization script Full viewer

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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_A0A0H3GRH0
AlphaFold full sequence Viewing
ColabFold KP13_31833
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
36 0.944

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 24.47 0.899
2 12.45 0.651
3 8.64 0.462
4 3.9 0.153
5 2.36 0.062

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.

87 records

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.

Show only:
Ligand Source crystal UniProt (homolog) MW · LogP · TPSA Lipinski PAINS SMILES
GV6 P09436 460.4 Da LogP -0.94 TPSA 218.2 1 viol. ✓ Clean CC[C@H](C)[C@@H](C(=O)OP(=O)(O)OC[C@@H]1[C@H]([…
GVU P09436 660.8 Da LogP 6.13 TPSA 176.9 2 viol. ✓ Clean CCCC[C@]1(CC[C@]2(CC[C@@H]([C@H](O2)C/C=C(\C)/C…
ILA P56690 458.5 Da LogP -2.65 TPSA 220.6 2 viol. ✓ Clean CC[C@H](C)[C@@H](C(=O)NS(=O)(=O)NC[C@@H]1[C@H](…

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.