FAIRMol

Z19222909

Pose ID 623 Compound 436 Pose 623

DB fairmolDocking pose analysis is being read from this database.
Molecular metrics status: done
RDKit SASA-based burial metrics are cached.
SASA cached
T01
Human DHFR Human
Ligand Z19222909
PDB5SD8

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
15.9 kcal/mol
Protein clashes
0
Internal clashes
14
Native overlap
contact recall 0.71, Jaccard 0.65, H-bond role recall 0.40
Burial
80%
Hydrophobic fit
83%
Reason: 14 internal clashes
14 intramolecular clashes
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-0.748 kcal/mol/HA) ✓ Good fit quality (FQ -7.42) ✓ Good H-bonds (3 bonds) ✓ Deep burial (80% SASA buried) ✓ Lipophilic contacts well-matched (83%) ✗ Moderate strain (15.9 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (14)
Score
-24.685
kcal/mol
LE
-0.748
kcal/mol/HA
Fit Quality
-7.42
FQ (Leeson)
HAC
33
heavy atoms
MW
451
Da
LogP
6.36
cLogP
Strain ΔE
15.9 kcal/mol
SASA buried
80%
Lipo contact
83% BSA apolar/total
SASA unbound
720 Ų
Apolar buried
478 Ų

Interaction summary

HB 3 HY 24 PI 3 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 rank2.504Score-24.685
Inter norm-0.789Intra norm0.041
Top1000noExcludedno
Contacts17H-bonds3
Artifact reasongeometry warning; 14 clashes; 1 protein clash
Residues
ALA10 ASN65 GLY117 ILE61 ILE8 LEU23 LEU28 LEU68 NAP201 PHE32 PHE35 PRO27 PRO62 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 overlap15Native recall0.71
Jaccard0.65RMSD-
HB strict2Strict recall0.40
HB same residue+role2HB role recall0.40
HB same residue2HB residue recall0.40

Protein summary

200 residues
Protein targetT01Atoms3128
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
634 0.7703295841755433 -1.01228 -30.485 3 17 0 0.00 0.00 - no Open
619 0.9227104539675254 -0.988832 -29.8563 3 18 0 0.00 0.00 - no Open
635 0.9872537622581262 -0.909874 -26.5051 1 17 0 0.00 0.00 - no Open
624 1.3874062123717454 -0.912299 -28.609 1 18 18 0.86 0.20 - no Open
623 2.5042832255124376 -0.78944 -24.6851 3 17 15 0.71 0.40 - no Current
641 2.575160669811322 -0.729551 -19.9056 7 12 0 0.00 0.00 - no Open
624 3.143187244987514 -0.689014 -19.0993 3 12 0 0.00 0.00 - no Open
637 3.1469015228773753 -0.653269 -16.8113 4 9 0 0.00 0.00 - no Open
623 3.788589440580992 -0.75815 -19.7132 1 18 0 0.00 0.00 - no Open
633 4.551784139291988 -0.853444 -26.9236 7 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 -24.685kcal/mol
Ligand efficiency (LE) -0.7480kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -7.422
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 33HA

Physicochemical properties

Molecular weight 450.6Da
Lipinski: ≤ 500 Da
LogP (cLogP) 6.36
Lipinski: ≤ 5
Rotatable bonds 6

Conformational strain (MMFF94s)

Strain energy (ΔE) 15.90kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 129.92kcal/mol
Minimised FF energy 114.02kcal/mol

SASA & burial

✓ computed
SASA (unbound) 719.7Ų
Total solvent-accessible surface area of free ligand
BSA total 573.0Ų
Buried surface area upon binding
BSA apolar 477.8Ų
Hydrophobic contacts buried
BSA polar 95.1Ų
Polar contacts buried
Fraction buried 79.6%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 83.4%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1692.5Ų
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 609.8Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)