FAIRMol

Z68347496

Pose ID 4606 Compound 1425 Pose 543

DB fairmolDocking pose analysis is being read from this database.
Molecular metrics status: done
RDKit SASA-based burial metrics are cached.
SASA cached
T07
T. brucei PTR1 T. brucei
Ligand Z68347496
PDB6RX6

3D complex viewer

Strict H-bonds Permissive H-bonds
Viewer legend
Protein receptor
Pocket residues
Cofactor context
Docked ligand
Overall assessment
Weak SASA cached
Promising but geometrically suspicious
Binding strong Geometry low Native strong SASA done
Strain ΔE
28.9 kcal/mol
Protein clashes
11
Internal clashes
12
Native overlap
contact recall 0.79, Jaccard 0.65, H-bond role recall 0.80
Burial
97%
Hydrophobic fit
78%
Reason: 11 protein-contact clashes, 12 internal clashes
11 protein-contact clashes 12 intramolecular clashes
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-1.460 kcal/mol/HA) ✓ Good fit quality (FQ -14.08) ✓ Strong H-bond network (9 bonds) ✓ Deep burial (97% SASA buried) ✓ Lipophilic contacts well-matched (78%) ✗ High strain energy (28.9 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (12)
Score
-43.788
kcal/mol
LE
-1.460
kcal/mol/HA
Fit Quality
-14.08
FQ (Leeson)
HAC
30
heavy atoms
MW
425
Da
LogP
3.15
cLogP
Strain ΔE
28.9 kcal/mol
SASA buried
97%
Lipo contact
78% BSA apolar/total
SASA unbound
662 Ų
Apolar buried
498 Ų

Interaction summary

HB 9 HY 24 PI 3 CLASH 12

HB · H-bonds

Mode: strict. Count shows atom-level H-bonds; unique residues in summary: 0.

PI · π–π interactions

Native π–π recall is disabled because no explicit native π–π reference was stored.

HY · Hydrophobic contacts

CLASH · Clashes

Final rank2.926Score-43.788
Inter norm-1.388Intra norm-0.072
Top1000noExcludedno
Contacts19H-bonds9
Artifact reasongeometry warning; 12 clashes; 1 protein clash; 1 severe cofactor-context clash; moderate strain Δ 28.9
Residues
ARG14 ASN175 ASP161 CYS168 LEU208 LEU209 LYS178 MET163 MET213 NAP301 PHE171 PHE97 PRO167 PRO210 SER207 TRP221 TYR174 VAL164 VAL206

Native ligand reference

★ reference
Interaction fingerprint calculated directly from the uploaded native ligand without docking. Current H-bond mode: strict.
NameTbPTR1_cW_6RX6_ReadyContacts19
PoseOpen native poseHB0
IFP residues
ARG14 ASP161 CYS168 GLY205 LEU208 LEU209 LYS178 MET213 NAP301 PHE171 PHE97 PRO210 PRO99 SER207 SER95 TRP221 TYR174 TYR98 VAL206
Current overlap15Native recall0.79
Jaccard0.65RMSD-
HB strict3Strict recall0.50
HB same residue+role4HB role recall0.80
HB same residue4HB residue recall0.80

Protein summary

275 residues
Protein targetT07Atoms3932
Residues275Chains3
Residue summaryLEU:437; VAL:433; ALA:361; ARG:288; ILE:266; GLU:210; LYS:198; SER:198; ASN:182; THR:154; GLN:153; PHE:140; PRO:140; TYR:126; GLY:112; HIS:103

Receptor context

1 kept / 0 excluded
Receptor context filtering: interactions and SASA are computed against protein atoms plus allowed cofactors/ions. Native ligand-like HETATM partners are excluded from scoring.
Kept context 1 Excluded HETATM 0
Kept cofactors / ions
A:NAP301

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
551 0.7863990384040856 -1.0689 -34.3256 10 13 0 0.00 0.00 - no Open
540 2.01639219542086 -0.846568 -22.4366 9 19 0 0.00 0.00 - no Open
597 2.6257543792701297 -0.791858 -27.3268 6 16 0 0.00 0.00 - no Open
552 2.841916052752017 -1.32572 -41.1595 11 19 15 0.79 0.80 - no Open
543 2.925843509730519 -1.38782 -43.7879 9 19 15 0.79 0.80 - no Current
577 3.073966426611157 -0.901 -28.5624 12 17 0 0.00 0.00 - no Open
554 3.391884301661245 -0.86851 -30.1896 8 19 0 0.00 0.00 - no Open
566 3.7897586704157433 -0.890481 -21.4571 10 12 0 0.00 0.00 - no Open
571 4.379321273351954 -0.866284 -27.1145 5 17 0 0.00 0.00 - no Open
577 4.446355622158319 -0.795751 -23.7085 6 19 0 0.00 0.00 - no Open
556 4.761776816752896 -0.850102 -27.284 9 14 0 0.00 0.00 - no Open
566 4.827703850716491 -1.36608 -35.1918 12 19 0 0.00 0.00 - no Open
581 5.166757877468878 -0.708586 -24.5919 8 14 0 0.00 0.00 - no Open

Molecular metrics

RDKit SASA burial, strain energy (MMFF94s), ligand efficiency and fit quality for this docking pose.
✓ Metrics available

Scoring & efficiency

Docking score -43.788kcal/mol
Ligand efficiency (LE) -1.4596kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -14.080
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 30HA

Physicochemical properties

Molecular weight 425.5Da
Lipinski: ≤ 500 Da
LogP (cLogP) 3.15
Lipinski: ≤ 5
Rotatable bonds 7

Conformational strain (MMFF94s)

Strain energy (ΔE) 28.95kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 55.04kcal/mol
Minimised FF energy 26.09kcal/mol

SASA & burial

✓ computed
SASA (unbound) 661.7Ų
Total solvent-accessible surface area of free ligand
BSA total 642.1Ų
Buried surface area upon binding
BSA apolar 498.1Ų
Hydrophobic contacts buried
BSA polar 144.0Ų
Polar contacts buried
Fraction buried 97.0%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 77.6%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1651.2Ų
SASA_nonpolar(complex) − SASA_nonpolar(receptor) − SASA_nonpolar(ligand free). Negative = non-polar surface buried upon binding. Requires full polarity-decomposed SASA computation.
Receptor non-polar SASA 2051.9Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 917.7Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)