FAIRMol

Z56815073

Pose ID 4031 Compound 318 Pose 645

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 Z56815073
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
Promising but geometrically suspicious
Binding strong Geometry low Native strong SASA done
Strain ΔE
43.7 kcal/mol
Protein clashes
8
Internal clashes
8
Native overlap
contact recall 0.67, Jaccard 0.56, H-bond role recall 0.00
Burial
92%
Hydrophobic fit
80%
Reason: 8 internal clashes, strain 43.7 kcal/mol
strain ΔE 43.7 kcal/mol 8 protein-contact clashes 8 intramolecular clashes
Molecular report
Full metrics ↗
Reject Multiple quality flags — this pose should be deprioritised or discarded.
✓ Excellent LE (-0.549 kcal/mol/HA) ✓ Good fit quality (FQ -5.40) ✓ Deep burial (92% SASA buried) ✓ Lipophilic contacts well-matched (80%) ✗ Extreme strain energy (43.7 kcal/mol) ✗ Geometry warnings ✗ Protein-contact clashes (8) ✗ Many internal clashes (15)
Score
-17.560
kcal/mol
LE
-0.549
kcal/mol/HA
Fit Quality
-5.40
FQ (Leeson)
HAC
32
heavy atoms
MW
569
Da
LogP
5.67
cLogP
Strain ΔE
43.7 kcal/mol
SASA buried
92%
Lipo contact
80% BSA apolar/total
SASA unbound
740 Ų
Apolar buried
539 Ų

Interaction summary

HB 2 HY 24 PI 3 CLASH 8
Final rank2.192Score-17.560
Inter norm-0.758Intra norm0.175
Top1000noExcludedno
Contacts18H-bonds2
Artifact reasongeometry warning; 15 clashes; 8 protein contact clashes; high strain Δ 43.7
Residues
ALA34 ARG59 ASP54 GLN56 GLU50 ILE160 ILE47 LEU90 LEU97 MET55 NDP301 PHE58 PHE94 PRO52 TRP49 TYR166 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 overlap14Native recall0.67
Jaccard0.56RMSD-
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
662 0.6661725537921506 -1.04002 -28.6522 3 19 0 0.00 0.00 - no Open
659 0.7707737947628458 -0.753505 -21.1708 0 16 0 0.00 0.00 - no Open
652 0.8225922751736459 -1.01993 -29.9798 1 17 0 0.00 0.00 - no Open
642 1.139808952940768 -0.847734 -26.7285 5 14 1 0.05 0.00 - no Open
656 1.7653889637304623 -0.867492 -24.6089 3 18 0 0.00 0.00 - no Open
655 1.8473635475241321 -1.0072 -32.0974 3 18 1 0.05 0.00 - no Open
638 1.9648568381193203 -0.927569 -29.9449 4 16 0 0.00 0.00 - no Open
645 2.1923496622071084 -0.758001 -17.56 2 18 14 0.67 0.00 - no Current
661 2.2567473265764555 -0.765666 -25.1725 7 20 0 0.00 0.00 - no Open
641 2.292373942513122 -0.725642 -22.2969 4 13 0 0.00 0.00 - no Open
641 2.2974884616866427 -0.933418 -28.8424 4 19 0 0.00 0.00 - no Open
654 3.071439811116401 -0.870778 -29.2301 13 16 0 0.00 0.00 - no Open
659 3.8692944863611776 -0.656079 -21.7278 6 10 0 0.00 0.00 - no Open
660 3.931763085408765 -0.81696 -27.3427 3 19 0 0.00 0.00 - no Open
666 5.297500006745246 -0.919049 -23.1364 13 21 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 -17.560kcal/mol
Ligand efficiency (LE) -0.5487kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -5.396
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 32HA

Physicochemical properties

Molecular weight 568.9Da
Lipinski: ≤ 500 Da
LogP (cLogP) 5.67
Lipinski: ≤ 5
Rotatable bonds 6

Conformational strain (MMFF94s)

Strain energy (ΔE) 43.69kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 42.24kcal/mol
Minimised FF energy -1.45kcal/mol

SASA & burial

✓ computed
SASA (unbound) 739.6Ų
Total solvent-accessible surface area of free ligand
BSA total 677.9Ų
Buried surface area upon binding
BSA apolar 539.1Ų
Hydrophobic contacts buried
BSA polar 138.8Ų
Polar contacts buried
Fraction buried 91.7%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 79.5%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1797.7Ų
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 585.2Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)