FAIRMol

Z1541638525

Pose ID 6023 Compound 124 Pose 605

DB SELECTIONDocking pose analysis is being read from this database.
Molecular metrics status: done
RDKit SASA-based burial metrics are cached.
SASA cached
T09
L. major DHFR-TS L. major
Ligand Z1541638525

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
52.5 kcal/mol
Protein clashes
1
Internal clashes
1
Native overlap
contact recall 0.71, Jaccard 0.65, H-bond role recall 0.00
Burial
90%
Hydrophobic fit
83%
Reason: strain 52.5 kcal/mol
strain ΔE 52.5 kcal/mol 1 protein-contact clashes
Molecular report
Full metrics ↗
Reject Multiple quality flags — this pose should be deprioritised or discarded.
✓ Excellent LE (-0.813 kcal/mol/HA) ✓ Good fit quality (FQ -7.92) ✓ Good H-bonds (5 bonds) ✓ Deep burial (90% SASA buried) ✓ Lipophilic contacts well-matched (83%) ✗ Extreme strain energy (52.5 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (11)
Score
-25.198
kcal/mol
LE
-0.813
kcal/mol/HA
Fit Quality
-7.92
FQ (Leeson)
HAC
31
heavy atoms
MW
439
Da
LogP
2.56
cLogP
Strain ΔE
52.5 kcal/mol
SASA buried
90%
Lipo contact
83% BSA apolar/total
SASA unbound
745 Ų
Apolar buried
554 Ų

Interaction summary

HB 5 HY 21 PI 1 CLASH 1

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

Final rank3.031Score-25.198
Inter norm-0.890Intra norm0.077
Top1000noExcludedno
Contacts17H-bonds5
Artifact reasongeometry warning; 11 clashes; 2 protein clashes; high strain Δ 52.5
Residues
NDP301 ALA32 ARG97 ASP52 LEU94 LYS57 LYS95 MET53 PHE56 PHE91 PRO88 PRO93 TYR162 VAL156 VAL30 VAL31 VAL87

Native ligand reference

★ reference
Interaction fingerprint calculated directly from the uploaded native ligand without docking. Current H-bond mode: strict.
Name3CL9Contacts21
PoseOpen native poseHB0
IFP residues
NDP301 ALA32 ARG97 ASP52 GLY157 ILE45 LEU94 LYS57 MET53 PHE55 PHE56 PHE91 PRO88 SER86 THR180 THR83 TYR162 VAL156 VAL30 VAL31 VAL87
Current overlap15Native recall0.71
Jaccard0.65RMSD-
HB strict0Strict recall0.00
HB same residue+role0HB role recall0.00
HB same residue0HB residue recall0.00

Protein summary

511 residues
Protein targetT09Atoms8170
Residues511Chains2
Residue summaryLEU:1064; ARG:840; LYS:572; GLU:570; VAL:528; PHE:460; ILE:456; ALA:440; PRO:420; THR:406; TYR:357; ASP:312; GLN:289; ASN:238; SER:231; GLY:224

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

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
616 1.111496592088737 -0.884205 -22.6768 2 17 0 0.00 0.00 - no Open
616 1.9754339533636078 -1.0646 -31.6893 2 17 0 0.00 0.00 - no Open
629 2.3345254061255214 -0.812677 -16.2566 5 19 0 0.00 0.00 - no Open
603 2.3880621061810063 -1.0371 -29.7296 7 17 0 0.00 0.00 - no Open
613 2.817356113057871 -0.857551 -27.4261 7 22 0 0.00 0.00 - no Open
605 3.0308665069554115 -0.89006 -25.1977 5 17 15 0.71 0.00 - no Current
632 3.194601979500991 -0.797748 -24.2342 6 13 0 0.00 0.00 - no Open
627 3.6050960718855105 -0.815297 -22.2564 8 15 0 0.00 0.00 - no Open
614 3.664946195262811 -0.73012 -23.1809 4 14 0 0.00 0.00 - no Open
610 4.115100225847642 -0.852848 -21.8685 4 20 1 0.05 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 -25.198kcal/mol
Ligand efficiency (LE) -0.8128kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -7.919
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 31HA

Physicochemical properties

Molecular weight 438.5Da
Lipinski: ≤ 500 Da
LogP (cLogP) 2.56
Lipinski: ≤ 5
Rotatable bonds 6

Conformational strain (MMFF94s)

Strain energy (ΔE) 52.48kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy -59.73kcal/mol
Minimised FF energy -112.21kcal/mol

SASA & burial

✓ computed
SASA (unbound) 744.7Ų
Total solvent-accessible surface area of free ligand
BSA total 669.0Ų
Buried surface area upon binding
BSA apolar 554.4Ų
Hydrophobic contacts buried
BSA polar 114.6Ų
Polar contacts buried
Fraction buried 89.8%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 82.9%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -3377.2Ų
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 4428.5Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 1672.8Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)