FAIRMol

ulfkktlib_1134

Pose ID 930 Compound 48 Pose 252

DB fairmolDocking pose analysis is being read from this database.
Molecular metrics status: done
RDKit SASA-based burial metrics are cached.
SASA cached
T02
Human DHFR Human
Ligand ulfkktlib_1134
PDB5SD8

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
47.3 kcal/mol
Protein clashes
2
Internal clashes
10
Native overlap
contact recall 0.67, Jaccard 0.61, H-bond role recall 0.60
Burial
88%
Hydrophobic fit
90%
Reason: 10 internal clashes, strain 47.3 kcal/mol
strain ΔE 47.3 kcal/mol 2 protein-contact clashes 10 intramolecular clashes
Molecular report
Full metrics ↗
Reject Multiple quality flags — this pose should be deprioritised or discarded.
✓ Excellent LE (-0.707 kcal/mol/HA) ✓ Good fit quality (FQ -6.51) ✓ Good H-bonds (4 bonds) ✓ Deep burial (88% SASA buried) ✓ Lipophilic contacts well-matched (90%) ✗ Extreme strain energy (47.3 kcal/mol) ✗ Geometry warnings ✗ Minor protein-contact clashes (2) ✗ Many internal clashes (10)
Score
-18.385
kcal/mol
LE
-0.707
kcal/mol/HA
Fit Quality
-6.51
FQ (Leeson)
HAC
26
heavy atoms
MW
342
Da
LogP
2.86
cLogP
Strain ΔE
47.3 kcal/mol
SASA buried
88%
Lipo contact
90% BSA apolar/total
SASA unbound
604 Ų
Apolar buried
477 Ų

Interaction summary

HB 4 HY 24 PI 4 CLASH 0

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

No clash · clashes detected for this pose.
Final rank0.635Score-18.385
Inter norm-0.988Intra norm0.281
Top1000noExcludedno
Contacts16H-bonds4
Artifact reasongeometry warning; 10 clashes; 2 protein contact clashes; 1 cofactor-context clash; high strain Δ 47.3
Residues
ALA10 GLU31 ILE61 ILE8 LEU23 LEU28 LEU68 NAP201 PHE32 PHE35 PRO27 THR137 THR57 TYR122 VAL116 VAL9

Native ligand reference

★ reference
Interaction fingerprint calculated directly from the uploaded native ligand without docking. Current H-bond mode: strict.
Name5SD8Contacts21
PoseOpen native poseHB0
IFP residues
ALA10 ASN65 ASP22 GLN36 GLU31 GLY117 GLY21 ILE61 ILE8 LEU23 LEU68 NAP201 PHE32 PHE35 PRO62 SER60 THR137 THR57 TYR122 VAL116 VAL9
Current overlap14Native recall0.67
Jaccard0.61RMSD-
HB strict3Strict recall0.60
HB same residue+role3HB role recall0.60
HB same residue3HB residue recall0.60

Protein summary

200 residues
Protein targetT02Atoms3128
Residues200Chains2
Residue summaryLYS:374; LEU:361; GLU:240; VAL:224; ARG:192; PHE:180; ILE:171; PRO:168; ASN:140; SER:132; TYR:126; GLN:119; ASP:108; MET:102; THR:98; GLY:91

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:NAP201

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
252 0.6351276729893204 -0.98825 -18.385 4 16 14 0.67 0.60 - no Current
279 0.6817625182077043 -0.988168 -21.9482 4 18 15 0.71 0.60 - no Open
182 0.9790582483332615 -0.973308 -18.7798 1 18 0 0.00 0.00 - no Open
178 2.0794038961210193 -1.19406 -32.2347 7 18 0 0.00 0.00 - no Open
124 2.5411078406966285 -0.936734 -24.6689 7 15 0 0.00 0.00 - no Open
198 2.963705010450679 -0.848632 -18.9988 4 17 0 0.00 0.00 - no Open
307 3.457122374934365 -0.926842 -25.3998 4 15 0 0.00 0.00 - no Open
223 4.578131990750444 -0.722597 -19.109 4 12 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 -18.385kcal/mol
Ligand efficiency (LE) -0.7071kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -6.515
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 26HA

Physicochemical properties

Molecular weight 342.4Da
Lipinski: ≤ 500 Da
LogP (cLogP) 2.86
Lipinski: ≤ 5
Rotatable bonds 6

Conformational strain (MMFF94s)

Strain energy (ΔE) 47.31kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 94.06kcal/mol
Minimised FF energy 46.75kcal/mol

SASA & burial

✓ computed
SASA (unbound) 603.7Ų
Total solvent-accessible surface area of free ligand
BSA total 532.2Ų
Buried surface area upon binding
BSA apolar 476.7Ų
Hydrophobic contacts buried
BSA polar 55.5Ų
Polar contacts buried
Fraction buried 88.2%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 89.6%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1615.1Ų
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 1677.9Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 611.0Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)