FAIRMol

Z237995644

Pose ID 3961 Compound 285 Pose 575

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 Z237995644
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
Weak or marginal quality
Binding strong Geometry high Native strong SASA done
Strain ΔE
20.1 kcal/mol
Protein clashes
2
Internal clashes
2
Native overlap
contact recall 0.71, Jaccard 0.65, H-bond role recall 0.00
Burial
96%
Hydrophobic fit
76%
Reason: no major geometry red flags detected
2 protein-contact clashes
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-0.720 kcal/mol/HA) ✓ Good fit quality (FQ -6.95) ✓ Deep burial (96% SASA buried) ✓ Lipophilic contacts well-matched (76%) ✗ High strain energy (20.1 kcal/mol) ✗ Geometry warnings ✗ Minor protein-contact clashes (2) ✗ Many internal clashes (12)
Score
-21.610
kcal/mol
LE
-0.720
kcal/mol/HA
Fit Quality
-6.95
FQ (Leeson)
HAC
30
heavy atoms
MW
413
Da
LogP
5.30
cLogP
Strain ΔE
20.1 kcal/mol
SASA buried
96%
Lipo contact
76% BSA apolar/total
SASA unbound
640 Ų
Apolar buried
470 Ų

Interaction summary

HB 1 HY 24 PI 3 CLASH 2
Final rank1.040Score-21.610
Inter norm-0.752Intra norm0.028
Top1000noExcludedno
Contacts17H-bonds1
Artifact reasongeometry warning; 12 clashes; 2 protein contact clashes; moderate strain Δ 20.1
Residues
ALA34 ARG100 ARG59 ASP54 ILE160 ILE47 LEU90 LEU97 MET55 NDP301 PHE58 PHE94 THR184 THR86 TYR57 VAL32 VAL33

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

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 overlap15Native recall0.71
Jaccard0.65RMSD-
HB strict0Strict recall0.00
HB same residue+role0HB role recall0.00
HB same residue0HB residue recall0.00

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
575 1.0399056885554303 -0.751969 -21.6104 1 17 15 0.71 0.00 - no Current
575 1.2383004177190995 -0.879713 -24.9612 3 14 1 0.05 0.00 - no Open
593 1.840988622981869 -0.872435 -23.9498 5 17 0 0.00 0.00 - no Open
601 2.3276582312652585 -0.752765 -24.4998 5 14 0 0.00 0.00 - no Open
574 2.6007481059821833 -0.753229 -21.5097 4 11 0 0.00 0.00 - no Open
599 2.7382383736726044 -1.03726 -27.9313 6 24 0 0.00 0.00 - no Open
594 3.260885981020757 -0.879028 -23.4199 4 16 0 0.00 0.00 - no Open
578 3.268899464166515 -1.08062 -31.5572 7 18 0 0.00 0.00 - no Open
605 4.277421972823018 -0.921936 -26.7502 11 14 0 0.00 0.00 - no Open
587 4.87930352531888 -1.00805 -27.8762 7 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 -21.610kcal/mol
Ligand efficiency (LE) -0.7203kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -6.949
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 30HA

Physicochemical properties

Molecular weight 413.5Da
Lipinski: ≤ 500 Da
LogP (cLogP) 5.30
Lipinski: ≤ 5
Rotatable bonds 5

Conformational strain (MMFF94s)

Strain energy (ΔE) 20.12kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 63.38kcal/mol
Minimised FF energy 43.26kcal/mol

SASA & burial

✓ computed
SASA (unbound) 639.8Ų
Total solvent-accessible surface area of free ligand
BSA total 615.0Ų
Buried surface area upon binding
BSA apolar 470.1Ų
Hydrophobic contacts buried
BSA polar 145.0Ų
Polar contacts buried
Fraction buried 96.1%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 76.4%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1722.3Ų
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 576.4Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)