FAIRMol

Z49595914

Pose ID 1315 Compound 871 Pose 637

DB SELECTIONDocking 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 Z49595914
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
86.8 kcal/mol
Protein clashes
2
Internal clashes
20
Native overlap
contact recall 0.76, Jaccard 0.64, H-bond role recall 0.20
Burial
81%
Hydrophobic fit
75%
Reason: 20 internal clashes, strain 86.8 kcal/mol
strain ΔE 86.8 kcal/mol 2 protein-contact clashes 20 intramolecular clashes
Molecular report
Full metrics ↗
Reject Multiple quality flags — this pose should be deprioritised or discarded.
✓ Excellent LE (-0.600 kcal/mol/HA) ✓ Good fit quality (FQ -6.27) ✓ Good H-bonds (4 bonds) ✓ Deep burial (81% SASA buried) ✓ Lipophilic contacts well-matched (75%) ✗ Extreme strain energy (86.8 kcal/mol) ✗ Geometry warnings ✗ Minor protein-contact clashes (2) ✗ Many internal clashes (20)
Score
-24.009
kcal/mol
LE
-0.600
kcal/mol/HA
Fit Quality
-6.27
FQ (Leeson)
HAC
40
heavy atoms
MW
600
Da
LogP
5.35
cLogP
Strain ΔE
86.8 kcal/mol
SASA buried
81%
Lipo contact
75% BSA apolar/total
SASA unbound
867 Ų
Apolar buried
522 Ų

Interaction summary

HB 4 HY 24 PI 3 CLASH 0
Final rank1.992Score-24.009
Inter norm-0.660Intra norm0.060
Top1000noExcludedno
Contacts20H-bonds4
Artifact reasongeometry warning; 20 clashes; 2 protein contact clashes; high strain Δ 86.8
Residues
ALA10 ARG29 ARG71 ASN65 ASP22 GLN36 GLU31 ILE61 ILE8 LEU23 LEU28 LEU68 NAP201 PHE32 PHE35 PRO27 THR137 TYR122 VAL116 VAL9

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

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 overlap16Native recall0.76
Jaccard0.64RMSD-
HB strict1Strict recall0.20
HB same residue+role1HB role recall0.20
HB same residue1HB residue recall0.20

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.

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
647 1.655206940734419 -0.819515 -28.7233 10 19 0 0.00 0.00 - no Open
637 1.9919255499789645 -0.660263 -24.0087 4 20 16 0.76 0.20 - no Current
652 2.8663488686206215 -0.732871 -23.2219 5 19 0 0.00 0.00 - no Open
656 3.111096291773 -0.754121 -23.759 6 15 0 0.00 0.00 - no Open
659 3.601081322712858 -0.563277 -17.528 5 14 0 0.00 0.00 - no Open
654 4.434217865717842 -0.481317 -16.1264 7 12 0 0.00 0.00 - no Open
665 5.049174033450789 -0.651119 -17.9603 11 15 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 -24.009kcal/mol
Ligand efficiency (LE) -0.6002kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -6.269
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 40HA

Physicochemical properties

Molecular weight 600.1Da
Lipinski: ≤ 500 Da
LogP (cLogP) 5.35
Lipinski: ≤ 5
Rotatable bonds 9

Conformational strain (MMFF94s)

Strain energy (ΔE) 86.76kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 118.11kcal/mol
Minimised FF energy 31.36kcal/mol

SASA & burial

✓ computed
SASA (unbound) 866.7Ų
Total solvent-accessible surface area of free ligand
BSA total 699.6Ų
Buried surface area upon binding
BSA apolar 521.5Ų
Hydrophobic contacts buried
BSA polar 178.0Ų
Polar contacts buried
Fraction buried 80.7%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 74.6%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1721.5Ų
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 1677.9Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 629.2Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)