FAIRMol

OHD_MAC_22

Pose ID 3731 Compound 1821 Pose 345

DB SELECTIONDocking pose analysis is being read from this database.
Molecular metrics status: done
RDKit SASA-based burial metrics are cached.
SASA cached
T06
T. brucei DHFR T. brucei
Ligand OHD_MAC_22
PDB8RHT

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 high Native strong SASA done
Strain ΔE
23.5 kcal/mol
Protein clashes
1
Internal clashes
1
Native overlap
contact recall 0.81, Jaccard 0.74, H-bond role recall 1.00
Burial
97%
Hydrophobic fit
78%
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 (-0.910 kcal/mol/HA) ✓ Good fit quality (FQ -8.15) ✓ Good H-bonds (5 bonds) ✓ Deep burial (97% SASA buried) ✓ Lipophilic contacts well-matched (78%) ✗ High strain energy (23.5 kcal/mol) ✗ Geometry warnings ✗ Protein-contact clashes (5) ✗ Many internal clashes (10)
Score
-21.829
kcal/mol
LE
-0.910
kcal/mol/HA
Fit Quality
-8.15
FQ (Leeson)
HAC
24
heavy atoms
MW
327
Da
LogP
1.21
cLogP
Final rank
0.8761
rank score
Inter norm
-1.145
normalised
Contacts
19
H-bonds 8
Strain ΔE
23.5 kcal/mol
SASA buried
97%
Lipo contact
78% BSA apolar/total
SASA unbound
600 Ų
Apolar buried
454 Ų

Interaction summary

HBD 3 HBA 2 HY 10 PI 3 CLASH 1

HBD/HBA · H-bonds (geometric)

HBD = ligand donates H · HBA = ligand accepts H · ~ = weak (≥110°). Mode: strict. Residues: 4.

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: strict.
Name8RHTContacts21
PoseOpen native poseHB0
IFP residues
ALA34 ASP54 HIS182 ILE160 ILE47 LEU90 LEU97 MET55 NDP301 PHE233 PHE58 PHE94 PRO91 SER89 THR184 THR86 TRP49 TYR166 TYR57 VAL32 VAL33
Current overlap17Native recall0.81
Jaccard0.74RMSD-
HB strict4Strict recall0.80
HB same residue+role4HB role recall1.00
HB same residue4HB residue recall1.00

Protein summary

223 residues
Protein targetT06Atoms3452
Residues223Chains1
Residue summaryARG:408; VAL:352; LYS:308; LEU:304; PRO:238; ILE:209; GLU:195; THR:182; SER:176; ALA:160; PHE:140; ASN:126; GLY:126; ASP:108; GLN:85; NDP:74

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:NDP301

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
320 0.5693088880784237 -1.42734 -30.1572 8 19 0 0.00 0.00 - no Open
345 0.8761308603640773 -1.14475 -21.8293 8 19 17 0.81 1.00 - no Current
358 1.5449647797715453 -1.13162 -14.0778 5 12 0 0.00 0.00 - no Open
340 1.8069125462213518 -1.52566 -27.2863 12 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 -21.829kcal/mol
Ligand efficiency (LE) -0.9096kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -8.151
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 24HA

Physicochemical properties

Molecular weight 327.4Da
Lipinski: ≤ 500 Da
LogP (cLogP) 1.21
Lipinski: ≤ 5
Rotatable bonds 9

Conformational strain (MMFF94s)

Strain energy (ΔE) 23.47kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 91.90kcal/mol
Minimised FF energy 68.43kcal/mol

SASA & burial

✓ computed
SASA (unbound) 599.8Ų
Total solvent-accessible surface area of free ligand
BSA total 582.5Ų
Buried surface area upon binding
BSA apolar 454.1Ų
Hydrophobic contacts buried
BSA polar 128.5Ų
Polar contacts buried
Fraction buried 97.1%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 77.9%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1699.5Ų
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 1808.8Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 580.1Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)