Protein profile

PA2138

multifunctional non-homologous end joining protein LigD

Genome: NC_002516.2

Gene: PA2138 ligD Structure source: Experimental + AlphaFold UniProt Q9I1X7
Amino acids 840
Annotations 12
Features 33
PDB binders 8
Druggability 0.642

Overview

Basic information about this protein and its source genome.

Accession
PA2138
Gene
PA2138 ligD
Status
annotated
Amino acids
840
Structure source
Experimental + AlphaFold

Target profile

Computed evidence for target prioritization.

Human off-target
hit
Human identity (%)
27.948
Human E-value
3.37e-06
Gut microbiome off-target
hit
Essential (DEG)
N
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 0.642
Structure
Pocket

Sequence

Primary amino-acid sequence viewer.

MPSSKPLAEYARKRDFRQTPEPSGRKPRKDSTGLLRYCVQKHDASRLHYDFRLELDGTLKSWAVPKGPCLDPAVKRLAVQVEDHPLDYADFEGSIPQGHYGAGDVIVWDRGAWTPLDDPREGLEKGHLSFALDGEKLSGRWHLIRTNLRGKQSQWFLVKAKDGEARSLDRFDVLKERPDSVLSERTLLPRHGEAATPAARPARRGKSGGKTPMPEWIAPELASLVEQPPRGEWAYELKLDGYRLMSRIEDGHVRLLTRNGHDWTERLPHLEKALAGLGLQRSWLDGELVVLDEEGRPDFQALQNAFEEGRGENILYVLFDLPYHEGEDLRDVALEERRARLEALLEGRDEDPLRFSATLAEDPRDLLASACKLGLEGVIGKRLGSAYRSRRSNDWIKLKCQLRQEFVIVGYTEPKGSRRHIGALLLGLYSPDEERRLRYAGKVGSGFTAASLKKVRERLEPLAVRSSPLAKVPPARETGSVQWVRPQQLCEVSYAQMTRGGIIRQAVFHGLREDKPAREVTGERPAGPPPLRGARKASAGASRAATAGVRISHPQRLIDPSIQASKLELAEFHARYADLLLRDLRERPVSLVRGPDGIGGELFFQKHAARLKIPGIVQLDPALDPGHPPLLQIRSAEALVGAVQMGSIEFHTWNASLANLERPDRFVLDLDPDPALPWKRMLEATQLSLTLLDELGLRAFLKTSGGKGMHLLVPLERRHGWDEVKDFAQAISQHLARLMPERFSAVSGPRNRVGKIFVDYLRNSRGASTVAAYSVRAREGLPVSVPVFREELDSLQGANQWNLRSLPQRLDELAGDDPWADYAGTRQRISAAMRRQLGRG

Functional Annotations

Enzyme classification and Gene Ontology terms linked to this protein.

12 GO

Gene Ontology (GO)

12
  • GO:0005524 Binding to ATP, adenosine 5'-triphosphate, a universally important coenzyme and enzyme regulator.
  • GO:0003677 Any molecular function by which a gene product interacts selectively and non-covalently with DNA (deoxyribonucleic acid).
  • GO:0003910 Catalysis of the reaction: ATP + deoxyribonucleotide(n) + deoxyribonucleotide(m) = AMP + diphosphate + deoxyribonucleotide(n+m).
  • GO:0003887 Catalysis of the reaction: deoxynucleoside triphosphate + DNA(n) = diphosphate + DNA(n+1); DNA-template-directed extension of the 3'-end of a DNA strand by one nucleotide at a time.
  • GO:0046872 Binding to a metal ion.
  • GO:0016779 Catalysis of the transfer of a nucleotidyl group from one compound (donor) to another (acceptor).
  • GO:0004532 Catalysis of the sequential cleavage of mononucleotides from a free 5' or 3' terminus of an RNA molecule.
  • GO:0071897 The biosynthetic process resulting in the formation of DNA.
  • GO:0006310 Any process in which a new genotype is formed by reassortment of genes resulting in gene combinations different from those that were present in the parents. In eukaryotes genetic recombination can occur by chromosome assortment, intrachromosomal recombination, or nonreciprocal interchromosomal recombination. Interchromosomal recombination occurs by crossing over. In bacteria it may occur by genetic transformation, conjugation, transduction, or F-duction.
  • GO:0006269 The synthesis of a short nucleotide polymer using one strand of unwound DNA as a template. The product is usually a RNA molecule between 4-15 nucleotides long that provides a free 3'-OH that can be extended by DNA-directed DNA polymerases. In certain conditions, for example in response to DNA damage, some primases synthesize a DNA primer.
  • GO:0006303 The repair of a double-strand break in DNA in which the two broken ends are rejoined with little or no sequence complementarity. Information at the DNA ends may be lost due to the modification of broken DNA ends. This term covers instances of separate pathways, called classical (or canonical) and alternative nonhomologous end joining (C-NHEJ and A-NHEJ). These in turn may further branch into sub-pathways, but evidence is still unclear.
  • GO:0006281 The process of restoring DNA after damage. Genomes are subject to damage by chemical and physical agents in the environment (e.g. UV and ionizing radiations, chemical mutagens, fungal and bacterial toxins, etc.) and by free radicals or alkylating agents endogenously generated in metabolism. DNA is also damaged because of errors during its replication. A variety of different DNA repair pathways have been reported that include direct reversal, base excision repair, nucleotide excision repair, photoreactivation, bypass, double-strand break repair pathway, and mismatch repair pathway.

Sequence Features

Domain/signature hits from InterPro and related databases.

33 records
Show feature table
Start End DB Term Name
403 520 CDD cd07971 OBF_DNA_ligase_LigD
40 144 Pfam PF13298 DNA polymerase Ligase (LigD)
40 144 InterPro IPR014144 DNA ligase D, 3'-phosphoesterase domain
217 400 CDD cd07906 Adenylation_DNA_ligase_LigD_LigC
418 515 Pfam PF04679 ATP dependent DNA ligase C terminal region
418 515 InterPro IPR012309 DNA ligase, ATP-dependent, C-terminal
219 521 NCBIfam TIGR02779 non-homologous end-joining DNA ligase, ligase domain
219 521 InterPro IPR014146 DNA ligase D, ligase domain
556 840 Gene3D G3DSA:3.90.920.10 DNA primase, PRIM domain
514 544 MobiDBLite mobidb-lite consensus disorder prediction
307 399 ProSiteProfiles PS50160 ATP-dependent DNA ligase family profile.
307 399 InterPro IPR012310 DNA ligase, ATP-dependent, central
216 399 SUPERFAMILY SSF56091 DNA ligase/mRNA capping enzyme, catalytic domain
402 523 Gene3D G3DSA:2.40.50.140 -
402 523 InterPro IPR012340 Nucleic acid-binding, OB-fold
8 32 MobiDBLite mobidb-lite consensus disorder prediction
241 356 Gene3D G3DSA:3.30.470.30 DNA ligase/mRNA capping enzyme
228 836 PANTHER PTHR42705 BIFUNCTIONAL NON-HOMOLOGOUS END JOINING PROTEIN LIGD
549 793 NCBIfam TIGR02778 non-homologous end-joining DNA ligase, polymerase domain
549 793 InterPro IPR014145 DNA ligase D, polymerase domain
403 523 SUPERFAMILY SSF50249 Nucleic acid-binding proteins
403 523 InterPro IPR012340 Nucleic acid-binding, OB-fold
228 823 NCBIfam TIGR02776 DNA ligase D
228 823 InterPro IPR014143 DNA ligase D
566 792 CDD cd04862 PaeLigD_Pol_like
566 792 InterPro IPR033651 LigD polymerase domain, PaeLigD-type
189 211 MobiDBLite mobidb-lite consensus disorder prediction
224 399 Pfam PF01068 ATP dependent DNA ligase domain
224 399 InterPro IPR012310 DNA ligase, ATP-dependent, central
7 162 NCBIfam TIGR02777 DNA ligase D, 3'-phosphoesterase domain
7 162 InterPro IPR014144 DNA ligase D, 3'-phosphoesterase domain
229 397 Gene3D G3DSA:3.30.1490.70 -
1 32 MobiDBLite mobidb-lite consensus disorder prediction

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

5 + 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 2FAO
X-ray 1.50 Å A,B
36.7% 533-840
Viewing
PDB 2FAQ
X-ray 1.90 Å A,B
36.7% 533-840
Loaded
PDB 2FAR
X-ray 1.90 Å A,B
36.7% 533-840
Loaded
PDB 3N9B
X-ray 1.92 Å A,B
20.4% 17-187
Loaded
PDB 3N9D
X-ray 2.30 Å A
20.4% 17-187
Loaded
AlphaFold PA2138
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 0.642

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 14.78 0.734
2 7.46 0.392
3 1.0 0.005

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.

Show only:
Ligand Source crystal MW · LogP · TPSA Lipinski PAINS SMILES
DTP 491.2 Da LogP -0.60 TPSA 258.9 2 viol. ✓ Clean c1nc(c2c(n1)n(cn2)[C@H]3C[C@@H]([C@H](O3)CO[P@]…
YT3 88.9 Da LogP -0.00 TPSA 0.0 ✓ Ro5 ✓ Clean [Y+3]

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.