FAIRMol

OHD_TB2021_64

Pose ID 9537 Compound 310 Pose 51

DB fairmolDocking pose analysis is being read from this database.
Molecular metrics status: done
RDKit SASA-based burial metrics are cached.
SASA cached
T15
T. brucei TR (Dimer cleft site) T. brucei Dimer cleft site
Ligand OHD_TB2021_64
PDB9IFF

3D complex viewer

Strict H-bonds Permissive H-bonds
Viewer legend
Protein receptor
Pocket residues
Cofactor context
Docked ligand
Overall assessment
Reject SASA cached
Likely artefact or unreliable pose
Binding strong Geometry medium Native strong SASA done
Strain ΔE
34.1 kcal/mol
Protein clashes
1
Internal clashes
1
Native overlap
contact recall 0.85, Jaccard 0.50
Burial
75%
Hydrophobic fit
90%
Reason: no major geometry red flags detected
1 protein-contact clashes
Molecular report
Full metrics ↗
Reject Multiple quality flags — this pose should be deprioritised or discarded.
✓ Excellent LE (-0.601 kcal/mol/HA) ✓ Good fit quality (FQ -6.06) ✓ Good H-bonds (3 bonds) ✓ Deep burial (75% SASA buried) ✓ Lipophilic contacts well-matched (90%) ✗ Very high strain energy (34.1 kcal/mol) ✗ Geometry warnings ✗ Protein-contact clashes (5) ✗ Many internal clashes (16)
Score
-21.025
kcal/mol
LE
-0.601
kcal/mol/HA
Fit Quality
-6.06
FQ (Leeson)
HAC
35
heavy atoms
MW
470
Da
LogP
1.95
cLogP
Final rank
1.9376
rank score
Inter norm
-0.690
normalised
Contacts
20
H-bonds 4
Strain ΔE
34.1 kcal/mol
SASA buried
75%
Lipo contact
90% BSA apolar/total
SASA unbound
838 Ų
Apolar buried
563 Ų

Interaction summary

HBD 3 HY 11 PI 1 CLASH 1

HBD/HBA · H-bonds (geometric)

HBD = ligand donates H · HBA = ligand accepts H · ~ = weak (≥110°). Mode: permissive. Residues: 3.

PI · π–π interactions

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

HY · Hydrophobic contacts

CLASH · Clashes

Native ligand reference

★ reference
Interaction fingerprint calculated directly from the uploaded native ligand without docking. Current H-bond mode: permissive.
Name9IFFContacts13
PoseOpen native poseHB0
IFP residues
ALA209 ARG74 ASN208 GLY214 GLY215 GLY85 LEU73 LYS211 MET70 PHE83 PRO212 PRO213 VAL88
Current overlap11Native recall0.85
Jaccard0.50RMSD-
HB strict0Strict recall-
HB same residue+role0HB role recall-
HB same residue0HB residue recall-

Protein summary

489 residues
Protein targetT15Atoms7420
Residues489Chains1
Residue summaryVAL:768; LYS:704; LEU:703; ILE:532; GLU:450; THR:434; ARG:408; PHE:400; ALA:390; ASN:350; PRO:350; GLY:336; SER:319; TYR:294; ASP:264; MET:204

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
73 1.9348311562718556 -0.73514 -23.7858 6 16 0 0.00 - - no Open
51 1.9376211136208519 -0.690102 -21.0252 4 20 11 0.85 - - no Current
53 7.014860441076277 -0.628681 -22.117 6 17 0 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 -21.025kcal/mol
Ligand efficiency (LE) -0.6007kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -6.059
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 35HA

Physicochemical properties

Molecular weight 469.6Da
Lipinski: ≤ 500 Da
LogP (cLogP) 1.95
Lipinski: ≤ 5
Rotatable bonds 11

Conformational strain (MMFF94s)

Strain energy (ΔE) 34.07kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 95.72kcal/mol
Minimised FF energy 61.65kcal/mol

SASA & burial

✓ computed
SASA (unbound) 838.5Ų
Total solvent-accessible surface area of free ligand
BSA total 628.4Ų
Buried surface area upon binding
BSA apolar 562.6Ų
Hydrophobic contacts buried
BSA polar 65.8Ų
Polar contacts buried
Fraction buried 75.0%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 89.5%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -3231.3Ų
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 4005.2Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 1527.8Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)