FAIRMol

OHD_TbNat_104

Pose ID 4825 Compound 579 Pose 84

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_TbNat_104
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
53.5 kcal/mol
Protein clashes
2
Internal clashes
4
Native overlap
contact recall 0.68, Jaccard 0.62, H-bond role recall 0.80
Burial
81%
Hydrophobic fit
72%
Reason: strain 53.5 kcal/mol
strain ΔE 53.5 kcal/mol 2 protein-contact clashes 4 intramolecular clashes
Molecular report
Full metrics ↗
Reject Multiple quality flags — this pose should be deprioritised or discarded.
✓ Excellent LE (-0.827 kcal/mol/HA) ✓ Good fit quality (FQ -8.05) ✓ Strong H-bond network (10 bonds) ✓ Deep burial (81% SASA buried) ✓ Lipophilic contacts well-matched (72%) ✗ Extreme strain energy (53.5 kcal/mol) ✗ Geometry warnings ✗ Minor protein-contact clashes (4) ✗ Many internal clashes (12)
Score
-25.620
kcal/mol
LE
-0.827
kcal/mol/HA
Fit Quality
-8.05
FQ (Leeson)
HAC
31
heavy atoms
MW
436
Da
LogP
-0.56
cLogP
Strain ΔE
53.5 kcal/mol
SASA buried
81%
Lipo contact
72% BSA apolar/total
SASA unbound
659 Ų
Apolar buried
388 Ų

Interaction summary

HB 10 HY 24 PI 1 CLASH 4
Final rank1.018Score-25.620
Inter norm-1.023Intra norm0.197
Top1000noExcludedno
Contacts15H-bonds10
Artifact reasongeometry warning; 12 clashes; 4 protein contact clashes; 2 severe cofactor-context clashes; high strain Δ 53.5
Residues
ALA96 ARG14 ASP161 LEU208 LEU209 MET213 NAP301 PHE171 PHE97 PRO210 SER207 SER95 TRP221 TYR174 VAL211

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

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
Jaccard0.62RMSD-
HB strict3Strict recall0.50
HB same residue+role4HB role recall0.80
HB same residue4HB residue recall0.80

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

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
84 1.0179927732673884 -1.02326 -25.6202 10 15 13 0.68 0.80 - no Current
87 3.2642859531252832 -0.996734 -27.8364 12 13 0 0.00 0.00 - no Open
86 3.3606023215307887 -0.929678 -30.7755 8 21 0 0.00 0.00 - no Open
94 3.411734690087445 -0.925891 -27.3176 9 21 0 0.00 0.00 - no Open
66 3.4554389482171013 -0.84221 -25.2275 7 15 0 0.00 0.00 - no Open
83 4.060877043540257 -0.820497 -20.7829 8 18 0 0.00 0.00 - no Open
81 4.253628773031853 -0.609689 -21.6506 7 10 0 0.00 0.00 - no Open
66 4.689246763870224 -0.774342 -20.4763 10 15 0 0.00 0.00 - no Open
45 5.218613317744509 -0.936281 -18.0731 14 18 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 -25.620kcal/mol
Ligand efficiency (LE) -0.8265kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -8.052
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 31HA

Physicochemical properties

Molecular weight 436.4Da
Lipinski: ≤ 500 Da
LogP (cLogP) -0.56
Lipinski: ≤ 5
Rotatable bonds 10

Conformational strain (MMFF94s)

Strain energy (ΔE) 53.51kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 181.79kcal/mol
Minimised FF energy 128.29kcal/mol

SASA & burial

✓ computed
SASA (unbound) 659.5Ų
Total solvent-accessible surface area of free ligand
BSA total 536.8Ų
Buried surface area upon binding
BSA apolar 388.2Ų
Hydrophobic contacts buried
BSA polar 148.5Ų
Polar contacts buried
Fraction buried 81.4%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 72.3%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1607.8Ų
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 908.6Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)