FAIRMol

OHD_ACDS_23

Pose ID 4055 Compound 2550 Pose 669

DB fairmolDocking 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_ACDS_23
PDB8RHT

3D complex viewer

Strict H-bonds Permissive H-bonds
Viewer legend
Protein receptor
Pocket residues
Cofactor context
Docked ligand
Overall assessment
Weak SASA cached
Promising but geometrically suspicious
Binding strong Geometry low Native strong SASA done
Strain ΔE
17.1 kcal/mol
Protein clashes
8
Internal clashes
8
Native overlap
contact recall 0.81, Jaccard 0.81, H-bond role recall 0.25
Burial
100%
Hydrophobic fit
97%
Reason: 8 internal clashes
8 protein-contact clashes 8 intramolecular clashes
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-0.856 kcal/mol/HA) ✓ Good fit quality (FQ -7.30) ✓ Strong H-bond network (6 bonds) ✓ Deep burial (100% SASA buried) ✓ Lipophilic contacts well-matched (97%) ✗ Moderate strain (17.1 kcal/mol) ✗ Geometry warnings ✗ Protein-contact clashes (11) ✗ Internal clashes (8)
Score
-17.971
kcal/mol
LE
-0.856
kcal/mol/HA
Fit Quality
-7.30
FQ (Leeson)
HAC
21
heavy atoms
MW
276
Da
LogP
3.02
cLogP
Strain ΔE
17.1 kcal/mol
SASA buried
100%
Lipo contact
97% BSA apolar/total
SASA unbound
499 Ų
Apolar buried
483 Ų

Interaction summary

HB 6 HY 24 PI 2 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 rank1.570Score-17.971
Inter norm-1.136Intra norm0.280
Top1000noExcludedno
Contacts17H-bonds6
Artifact reasongeometry warning; 8 clashes; 11 protein contact clashes; 1 severe cofactor-context clash
Residues
ALA34 ASP54 HIS182 ILE160 ILE47 LEU90 MET55 NDP301 PHE233 PHE58 SER89 THR184 THR86 TYR166 TYR57 VAL32 VAL33

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
Jaccard0.81RMSD-
HB strict2Strict recall0.40
HB same residue+role1HB role recall0.25
HB same residue1HB residue recall0.25

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
661 1.3301225924586448 -1.53409 -29.212 3 14 0 0.00 0.00 - no Open
669 1.5700738045781129 -1.13597 -17.9714 6 17 17 0.81 0.25 - no Current
657 1.577400629558791 -1.10426 -22.553 5 11 0 0.00 0.00 - no Open
675 2.2225127768025614 -0.945388 -20.0759 4 11 0 0.00 0.00 - no Open
676 2.614827992980293 -1.31059 -26.4268 4 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 -17.971kcal/mol
Ligand efficiency (LE) -0.8558kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -7.300
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 21HA

Physicochemical properties

Molecular weight 276.4Da
Lipinski: ≤ 500 Da
LogP (cLogP) 3.02
Lipinski: ≤ 5
Rotatable bonds 4

Conformational strain (MMFF94s)

Strain energy (ΔE) 17.15kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 64.70kcal/mol
Minimised FF energy 47.55kcal/mol

SASA & burial

✓ computed
SASA (unbound) 499.1Ų
Total solvent-accessible surface area of free ligand
BSA total 496.8Ų
Buried surface area upon binding
BSA apolar 482.6Ų
Hydrophobic contacts buried
BSA polar 14.2Ų
Polar contacts buried
Fraction buried 99.5%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 97.1%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1695.3Ų
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 1808.8Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 597.6Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)