FAIRMol

OHD_TB2022_31

Pose ID 4814 Compound 1316 Pose 73

DB SELECTIONDocking pose analysis is being read from this database.
Molecular metrics status: done
RDKit SASA-based burial metrics are cached.
SASA cached
T08
T. brucei PTR1 T. brucei
Ligand OHD_TB2022_31
PDB6RX6

3D complex viewer

Strict H-bonds Permissive H-bonds
Viewer legend
Protein receptor
Pocket residues
Cofactor context
Docked ligand
Overall assessment
Reject SASA cached
Promising but geometrically suspicious
Binding strong Geometry low Native strong SASA done
Strain ΔE
67.2 kcal/mol
Protein clashes
6
Internal clashes
6
Native overlap
contact recall 0.68, Jaccard 0.50, H-bond role recall 0.60
Burial
93%
Hydrophobic fit
57%
Reason: 6 internal clashes, strain 67.2 kcal/mol
strain ΔE 67.2 kcal/mol 6 protein-contact clashes 6 intramolecular clashes
Molecular report
Full metrics ↗
Reject Multiple quality flags — this pose should be deprioritised or discarded.
✓ Excellent LE (-0.932 kcal/mol/HA) ✓ Good fit quality (FQ -8.80) ✓ Strong H-bond network (16 bonds) ✓ Deep burial (93% SASA buried) ✗ Extreme strain energy (67.2 kcal/mol) ✗ Geometry warnings
Score
-26.101
kcal/mol
LE
-0.932
kcal/mol/HA
Fit Quality
-8.80
FQ (Leeson)
HAC
28
heavy atoms
MW
441
Da
LogP
-1.19
cLogP
Strain ΔE
67.2 kcal/mol
SASA buried
93%
Lipo contact
57% BSA apolar/total
SASA unbound
715 Ų
Apolar buried
382 Ų

Interaction summary

HB 16 HY 18 PI 2 CLASH 6

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 rank3.116Score-26.101
Inter norm-1.160Intra norm0.228
Top1000noExcludedno
Contacts20H-bonds16
Artifact reasongeometry warning; 2 clashes; 2 protein clashes; 1 severe cofactor-context clash; high strain Δ 67.2
Residues
ARG14 ASN175 ASP161 CYS168 GLN166 GLU217 LEU208 LEU209 LYS220 MET163 MET213 NAP301 PHE171 PHE97 PRO167 PRO210 SER95 TRP221 TYR174 VAL164

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 overlap13Native recall0.68
Jaccard0.50RMSD-
HB strict4Strict recall0.67
HB same residue+role3HB role recall0.60
HB same residue5HB residue recall1.00

Protein summary

258 residues
Protein targetT08Atoms3881
Residues258Chains2
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
62 0.810035212991975 -1.02312 -24.8311 9 20 0 0.00 0.00 - no Open
40 1.5534392733255422 -0.8627 -18.2179 16 20 0 0.00 0.00 - no Open
41 2.174153151104028 -1.18906 -27.7725 6 11 0 0.00 0.00 - no Open
54 2.223234600331605 -0.949567 -21.4001 16 21 0 0.00 0.00 - no Open
74 2.6242008387752502 -1.03371 -23.4084 12 20 0 0.00 0.00 - no Open
73 3.116055422869663 -1.16039 -26.1014 16 20 13 0.68 0.60 - no Current
70 3.4990459052277174 -0.913904 -13.8449 12 20 0 0.00 0.00 - no Open
59 3.5997644114734966 -0.764431 -19.6558 15 12 0 0.00 0.00 - no Open
63 3.8583607402112525 -1.09421 -23.971 13 20 14 0.74 0.80 - no Open
51 4.7034834914662245 -1.09364 -21.0658 16 19 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 -26.101kcal/mol
Ligand efficiency (LE) -0.9322kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -8.800
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 28HA

Physicochemical properties

Molecular weight 441.3Da
Lipinski: ≤ 500 Da
LogP (cLogP) -1.19
Lipinski: ≤ 5
Rotatable bonds 14

Conformational strain (MMFF94s)

Strain energy (ΔE) 67.20kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy -72.78kcal/mol
Minimised FF energy -139.98kcal/mol

SASA & burial

✓ computed
SASA (unbound) 714.6Ų
Total solvent-accessible surface area of free ligand
BSA total 665.0Ų
Buried surface area upon binding
BSA apolar 382.1Ų
Hydrophobic contacts buried
BSA polar 282.9Ų
Polar contacts buried
Fraction buried 93.1%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 57.5%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1567.9Ų
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 904.9Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)