FAIRMol

OHD_MAC_18

Pose ID 4382 Compound 490 Pose 319

DB SELECTIONDocking 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 OHD_MAC_18
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
46.2 kcal/mol
Protein clashes
3
Internal clashes
4
Native overlap
contact recall 0.68, Jaccard 0.57, H-bond role recall 0.60
Burial
79%
Hydrophobic fit
73%
Reason: strain 46.2 kcal/mol
strain ΔE 46.2 kcal/mol 3 protein-contact clashes 4 intramolecular clashes
Molecular report
Full metrics ↗
Reject Multiple quality flags — this pose should be deprioritised or discarded.
✓ Excellent LE (-0.801 kcal/mol/HA) ✓ Good fit quality (FQ -8.01) ✓ Strong H-bond network (14 bonds) ✓ Deep burial (79% SASA buried) ✓ Lipophilic contacts well-matched (73%) ✗ Extreme strain energy (46.2 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (15)
Score
-27.227
kcal/mol
LE
-0.801
kcal/mol/HA
Fit Quality
-8.01
FQ (Leeson)
HAC
34
heavy atoms
MW
463
Da
LogP
2.49
cLogP
Strain ΔE
46.2 kcal/mol
SASA buried
79%
Lipo contact
73% BSA apolar/total
SASA unbound
747 Ų
Apolar buried
429 Ų

Interaction summary

HB 14 HY 24 PI 5 CLASH 4
Final rank2.722Score-27.227
Inter norm-0.945Intra norm0.144
Top1000noExcludedno
Contacts17H-bonds14
Artifact reasongeometry warning; 15 clashes; 1 protein clash; 1 severe cofactor-context clash; high strain Δ 46.2
Residues
ALA170 ARG14 CYS168 GLU217 LEU209 MET169 MET213 NAP301 PHE171 PHE97 PRO210 PRO99 SER95 TRP221 TYR174 TYR98 HIS267

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

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
Jaccard0.57RMSD-
HB strict4Strict recall0.67
HB same residue+role3HB role recall0.60
HB same residue3HB residue recall0.60

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
430 2.59197919835503 -0.76148 -25.2954 5 15 0 0.00 0.00 - no Open
319 2.7218578470903583 -0.945078 -27.2269 14 17 13 0.68 0.60 - no Current
428 2.79456012805537 -0.880938 -20.3366 8 18 0 0.00 0.00 - no Open
336 3.2419444705772915 -1.0213 -19.9514 8 17 12 0.63 0.20 - no Open
320 3.778930126035148 -0.904558 -22.0607 16 28 0 0.00 0.00 - no Open
356 4.4971483304172395 -0.778227 -21.2656 14 18 0 0.00 0.00 - no Open
464 4.517879810668577 -0.77068 -22.8725 7 19 0 0.00 0.00 - no Open
391 4.742137285786799 -0.8613 -27.9883 6 17 0 0.00 0.00 - no Open
342 4.822952678317703 -0.931528 -24.8768 13 18 0 0.00 0.00 - no Open
396 4.864535502025708 -0.81227 -25.2088 10 19 0 0.00 0.00 - no Open
358 5.068564575638491 -0.79463 -17.726 8 19 0 0.00 0.00 - no Open
324 5.551177698279277 -1.05191 -27.6251 16 17 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 -27.227kcal/mol
Ligand efficiency (LE) -0.8008kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -8.013
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 34HA

Physicochemical properties

Molecular weight 463.4Da
Lipinski: ≤ 500 Da
LogP (cLogP) 2.49
Lipinski: ≤ 5
Rotatable bonds 12

Conformational strain (MMFF94s)

Strain energy (ΔE) 46.18kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 131.04kcal/mol
Minimised FF energy 84.85kcal/mol

SASA & burial

✓ computed
SASA (unbound) 746.6Ų
Total solvent-accessible surface area of free ligand
BSA total 590.5Ų
Buried surface area upon binding
BSA apolar 428.8Ų
Hydrophobic contacts buried
BSA polar 161.8Ų
Polar contacts buried
Fraction buried 79.1%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 72.6%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1661.0Ų
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 944.3Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)