FAIRMol

OHD_MAC_21

Pose ID 5080 Compound 3163 Pose 339

DB fairmolDocking 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_MAC_21
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
66.7 kcal/mol
Protein clashes
6
Internal clashes
8
Native overlap
contact recall 0.58, Jaccard 0.41, H-bond role recall 0.60
Burial
87%
Hydrophobic fit
84%
Reason: 8 internal clashes, strain 66.7 kcal/mol
strain ΔE 66.7 kcal/mol 6 protein-contact clashes 8 intramolecular clashes
Molecular report
Full metrics ↗
Reject Multiple quality flags — this pose should be deprioritised or discarded.
✓ Excellent LE (-0.977 kcal/mol/HA) ✓ Good fit quality (FQ -9.61) ✓ Strong H-bond network (9 bonds) ✓ Deep burial (87% SASA buried) ✓ Lipophilic contacts well-matched (84%) ✗ Extreme strain energy (66.7 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (16)
Score
-31.266
kcal/mol
LE
-0.977
kcal/mol/HA
Fit Quality
-9.61
FQ (Leeson)
HAC
32
heavy atoms
MW
433
Da
LogP
-0.00
cLogP
Strain ΔE
66.7 kcal/mol
SASA buried
87%
Lipo contact
84% BSA apolar/total
SASA unbound
768 Ų
Apolar buried
558 Ų

Interaction summary

HB 9 HY 24 PI 3 CLASH 8

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 rank4.037Score-31.266
Inter norm-1.258Intra norm0.281
Top1000noExcludedno
Contacts19H-bonds9
Artifact reasongeometry warning; 16 clashes; 2 protein clashes; 5 cofactor-context clashes; high strain Δ 65.3
Residues
ALA96 ARG14 ASN175 ASP161 ASP165 CYS168 GLN166 LEU208 LEU209 LYS13 MET163 NAP301 PHE171 PHE97 PRO167 PRO210 SER95 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 overlap11Native recall0.58
Jaccard0.41RMSD-
HB strict4Strict recall0.67
HB same residue+role3HB role recall0.60
HB same residue4HB residue recall0.80

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
359 2.244470784373827 -0.798467 -14.7208 4 15 0 0.00 0.00 - no Open
357 2.8793379368286023 -0.818089 -19.7883 13 18 0 0.00 0.00 - no Open
339 4.037169782378875 -1.25769 -31.2658 9 19 11 0.58 0.60 - no Current
303 4.54368954996928 -0.824304 -21.8567 11 18 0 0.00 0.00 - no Open
326 4.921780442364073 -1.03614 -25.2784 13 18 0 0.00 0.00 - no Open
397 4.964586519044101 -0.839228 -19.9991 7 22 0 0.00 0.00 - no Open
322 5.335617475749751 -0.879574 -24.4531 11 20 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 -31.266kcal/mol
Ligand efficiency (LE) -0.9771kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -9.608
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 32HA

Physicochemical properties

Molecular weight 433.5Da
Lipinski: ≤ 500 Da
LogP (cLogP) -0.00
Lipinski: ≤ 5
Rotatable bonds 10

Conformational strain (MMFF94s)

Strain energy (ΔE) 66.70kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 188.90kcal/mol
Minimised FF energy 122.20kcal/mol

SASA & burial

✓ computed
SASA (unbound) 768.4Ų
Total solvent-accessible surface area of free ligand
BSA total 666.9Ų
Buried surface area upon binding
BSA apolar 557.7Ų
Hydrophobic contacts buried
BSA polar 109.1Ų
Polar contacts buried
Fraction buried 86.8%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 83.6%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1744.6Ų
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 936.7Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)