Protein profile

PA3482

methionine--tRNA ligase

Genome: NC_002516.2

Gene: PA3482 metG Structure source: Experimental + AlphaFold UniProt Q9HYC7
Amino acids 677
Annotations 10
Features 52
PDB binders 11
Druggability 0.751

Overview

Basic information about this protein and its source genome.

Accession
PA3482
Gene
PA3482 metG
Status
annotated
Amino acids
677
Structure source
Experimental + AlphaFold

Target profile

Computed evidence for target prioritization.

Human off-target
hit
Human identity (%)
51.429
Human E-value
3.46e-07
Gut microbiome off-target
hit
Essential (DEG)
Y
Localization
Cytoplasmic

Selected Druggability evidence

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 0.751
Structure
Pocket

Sequence

Primary amino-acid sequence viewer.

MSEPRKILVTSALPYANGSIHLGHMLEYIQTDMWVRFQKMRGNQAVYVCADDAHGSAIMLRAEREGITSEQLIDAVRAEHMGDFADFLVDFDNYHSTHSEENRELSSAIYLKLRDAGHIDTRPVTQYFDPEKQMFLADRFIKGTCPKCGTADQYGDNCEACGATYAPTELKDPKSAISGATPVLKESLHYFFKLPDFEAMLKQWTRSGALQESVANKLAEWLDSGLQQWDISRDAPYFGFEIPDAPGKYFYVWLDAPIGYMASFKNLCARRPELDFDAFWGKDSGAELYHFIGKDIVNFHALFWPAMLEGAGYRKPTALNVHGYLTVNGQKMSKSRGTFVKARTYLDHLDPEYLRYYYASKLGRGVEDLDLNLEDFVQKVNSDLVGKVVNIASRCAGFIHKGNAGVLVGADPAPELLAAFREAAPGIAEAYEARDFNRAMREIMALADRANAWIAEQAPWALAKQEGQQDKVQAVCGLGINLFRQLVIFLKPVLPKLAAAAEAFLNVAPLTWADHQTLLANHQLNPFQPLMTRIEPAKVEAMIEASKEDLAAASQPAGNGELVKEPIAAEIDFDAFAAVDLRIALIEKCEFVEGADKLLRLSLDIGDAKRNVFSGIKSAYPDPSALEGRLTLYVANLAPRKMKFGVSEGMVLAAGPGGEEIYLLSPDSGAKPGQRVK

Functional Annotations

Enzyme classification and Gene Ontology terms linked to this protein.

1 EC 9 GO

Enzyme Commission (EC)

1

Gene Ontology (GO)

9
  • GO:0005829 The part of the cytoplasm that does not contain organelles but which does contain other particulate matter, such as protein complexes.
  • GO:0005524 Binding to ATP, adenosine 5'-triphosphate, a universally important coenzyme and enzyme regulator.
  • GO:0046872 Binding to a metal ion.
  • GO:0004825 Catalysis of the reaction: ATP + L-methionine + tRNA(Met) = AMP + diphosphate + L-methionyl-tRNA(Met).
  • GO:0000049 Binding to a transfer RNA.
  • GO:0006431 The process of coupling methionine to methionyl-tRNA, catalyzed by methionyl-tRNA synthetase. The methionyl-tRNA synthetase is a class-I synthetase. The activated amino acid is transferred to the 2'-OH group of a methionine-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:0004812 Catalysis of the formation of aminoacyl-tRNA from ATP, amino acid, and tRNA with the release of diphosphate and AMP.
  • 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.

Sequence Features

Domain/signature hits from InterPro and related databases.

52 records
Show feature table
Start End DB Term Name
3 675 PANTHER PTHR45765 METHIONINE--TRNA LIGASE
3 675 InterPro IPR023458 Methionine-tRNA ligase, type 1
388 526 FunFam G3DSA:1.10.730.10:FF:000005 Methionine--tRNA ligase
5 545 Hamap MF_00098 Methionine--tRNA ligase [metG].
5 545 InterPro IPR023458 Methionine-tRNA ligase, type 1
581 674 Pfam PF01588 Putative tRNA binding domain
581 674 InterPro IPR002547 tRNA-binding domain
9 22 PRINTS PR01041 Methionyl-tRNA synthetase signature
9 22 InterPro IPR033911 Methioninyl-tRNA synthetase core domain
89 100 PRINTS PR01041 Methionyl-tRNA synthetase signature
89 100 InterPro IPR033911 Methioninyl-tRNA synthetase core domain
250 261 PRINTS PR01041 Methionyl-tRNA synthetase signature
250 261 InterPro IPR033911 Methioninyl-tRNA synthetase core domain
41 55 PRINTS PR01041 Methionyl-tRNA synthetase signature
41 55 InterPro IPR033911 Methioninyl-tRNA synthetase core domain
290 305 PRINTS PR01041 Methionyl-tRNA synthetase signature
290 305 InterPro IPR033911 Methioninyl-tRNA synthetase core domain
383 394 PRINTS PR01041 Methionyl-tRNA synthetase signature
383 394 InterPro IPR033911 Methioninyl-tRNA synthetase core domain
567 677 FunFam G3DSA:2.40.50.140:FF:000042 Methionine--tRNA ligase
543 677 NCBIfam TIGR00399 methionine--tRNA ligase subunit beta
543 677 InterPro IPR004495 Methionyl-tRNA synthetase, beta subunit, C-terminal
7 383 Gene3D G3DSA:3.40.50.620 HUPs
7 383 InterPro IPR014729 Rossmann-like alpha/beta/alpha sandwich fold
141 175 SUPERFAMILY SSF57770 Methionyl-tRNA synthetase (MetRS), Zn-domain
141 175 InterPro IPR029038 Methionyl-tRNA synthetase, Zn-domain
389 547 SUPERFAMILY SSF47323 Anticodon-binding domain of a subclass of class I aminoacyl-tRNA synthetases
389 547 InterPro IPR009080 Aminoacyl-tRNA synthetase, class Ia, anticodon-binding
7 535 NCBIfam TIGR00398 methionine--tRNA ligase
7 535 InterPro IPR014758 Methionyl-tRNA synthetase
388 526 Gene3D G3DSA:1.10.730.10 -
416 517 Pfam PF19303 Anticodon binding domain of methionyl tRNA ligase
416 517 InterPro IPR041872 Methionyl-tRNA synthetase, anticodon-binding domain
6 370 CDD cd00814 MetRS_core
6 370 InterPro IPR033911 Methioninyl-tRNA synthetase core domain
570 676 SUPERFAMILY SSF50249 Nucleic acid-binding proteins
570 676 InterPro IPR012340 Nucleic acid-binding, OB-fold
571 677 CDD cd02800 tRNA_bind_EcMetRS_like
571 677 InterPro IPR004495 Methionyl-tRNA synthetase, beta subunit, C-terminal
14 25 ProSitePatterns PS00178 Aminoacyl-transfer RNA synthetases class-I signature.
14 25 InterPro IPR001412 Aminoacyl-tRNA synthetase, class I, conserved site
575 677 ProSiteProfiles PS50886 tRNA-binding domain profile.
575 677 InterPro IPR002547 tRNA-binding domain
373 505 CDD cd07957 Anticodon_Ia_Met
373 505 InterPro IPR041872 Methionyl-tRNA synthetase, anticodon-binding domain
7 395 Pfam PF09334 tRNA synthetases class I (M)
7 395 InterPro IPR015413 Methionyl/Leucyl tRNA synthetase
568 677 Gene3D G3DSA:2.40.50.140 -
568 677 InterPro IPR012340 Nucleic acid-binding, OB-fold
141 175 FunFam G3DSA:2.20.28.20:FF:000001 Methionine--tRNA ligase
4 386 SUPERFAMILY SSF52374 Nucleotidylyl transferase
141 175 Gene3D G3DSA:2.20.28.20 -

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

1 + 1

Experimental PDB entries and predicted models. Click Switch to display a different structure in the viewer.

Entry Method Resolution Chain Coverage Links Status
PDB 7ULZ
X-ray 2.80 Å A
81.4% 1-551
Viewing
AlphaFold PA3482
AlphaFold 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 0.751
6 0.591
5 0.27

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 14.53 0.725
2 2.33 0.06
3 1.73 0.031
4 1.3 0.014
5 1.09 0.007

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.

122 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
2FM P00959 185.2 Da LogP 0.74 TPSA 63.3 ✓ Ro5 ✓ Clean C(CSC(F)F)[C@@H](C(=O)O)N
ADN P00959 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)…
B3M P00959 163.2 Da LogP 0.54 TPSA 63.3 ✓ Ro5 ✓ Clean CSCC[C@@H](CC(=O)O)N
I3C P56192 558.8 Da LogP 2.48 TPSA 100.6 1 viol. ✓ Clean c1(c(c(c(c(c1I)N)I)C(=O)O)I)C(=O)O
MF3 P00959 203.2 Da LogP 1.04 TPSA 63.3 ✓ Ro5 ✓ Clean C(CSC(F)(F)F)[C@@H](C(=O)O)N
MOD P00959 466.5 Da LogP -1.92 TPSA 197.5 2 viol. ✓ Clean CSCC[C@@H](CO[P@](=O)(O)OC[C@@H]1[C@H]([C@H]([C…
MPH P00959 185.2 Da LogP 0.20 TPSA 83.6 ✓ Ro5 ✓ Clean CSCC[C@H](N)P(=O)(O)O
MPJ P00959 169.2 Da LogP 0.49 TPSA 63.3 ✓ Ro5 ✓ Clean CSCC[C@H](N)[P@H](=O)O
MSP P00959 479.5 Da LogP -3.68 TPSA 214.2 2 viol. ✓ Clean CSCC[C@@H](C(=O)NS(=O)(=O)OC[C@@H]1[C@H]([C@H](…
NOT P00959 172.2 Da LogP 0.88 TPSA 112.1 ✓ Ro5 Alert C(CCN=[N+]=[N-])C[C@@H](C(=O)O)N
U81 Q8PMP0 513.3 Da LogP 5.03 TPSA 66.2 2 viol. ✓ Clean c1csc2c1NC(=CC2=O)NCCCN[C@@H]3CCOc4c3cc(cc4Br)Br

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.