FAIRMol

Z33269755

Pose ID 1956 Compound 145 Pose 601

DB SELECTIONDocking pose analysis is being read from this database.
Molecular metrics status: done
RDKit SASA-based burial metrics are cached.
SASA cached
T03
L. major DHFR L. major
Ligand Z33269755

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 mixed SASA done
Strain ΔE
50.5 kcal/mol
Protein clashes
4
Internal clashes
4
Native overlap
contact recall 0.50, Jaccard 0.37, H-bond role recall 0.20
Burial
88%
Hydrophobic fit
72%
Reason: strain 50.5 kcal/mol
strain ΔE 50.5 kcal/mol 4 protein-contact clashes 4 intramolecular clashes
Molecular report
Full metrics ↗
Reject Multiple quality flags — this pose should be deprioritised or discarded.
✓ Excellent LE (-0.543 kcal/mol/HA) ✓ Good fit quality (FQ -5.39) ✓ Good H-bonds (3 bonds) ✓ Deep burial (88% SASA buried) ✓ Lipophilic contacts well-matched (72%) ✗ Extreme strain energy (50.5 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (12)
Score
-17.933
kcal/mol
LE
-0.543
kcal/mol/HA
Fit Quality
-5.39
FQ (Leeson)
HAC
33
heavy atoms
MW
548
Da
LogP
4.56
cLogP
Strain ΔE
50.5 kcal/mol
SASA buried
88%
Lipo contact
72% BSA apolar/total
SASA unbound
758 Ų
Apolar buried
481 Ų

Interaction summary

HB 3 HY 24 PI 2 CLASH 4
Final rank2.511Score-17.933
Inter norm-0.849Intra norm0.305
Top1000noExcludedno
Contacts17H-bonds3
Artifact reasongeometry warning; 12 clashes; 1 protein clash; high strain Δ 50.5
Residues
ARG48 ARG92 ARG97 ASP52 ILE45 LEU94 LYS57 LYS90 LYS95 MET53 NDP301 PHE56 PHE91 PRO93 TRP47 VAL49 VAL87

Protein summary

225 residues
Protein targetT03Atoms3428
Residues225Chains2
Residue summaryLEU:380; ARG:360; VAL:272; LYS:264; ALA:240; GLU:240; PRO:224; PHE:180; THR:154; ILE:152; SER:132; TYR:126; GLN:119; ASN:98; GLY:84; 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.
Name3CL9Contacts20
PoseOpen native poseHB0
IFP residues
ALA32 ARG97 ASP52 ILE45 LEU94 LYS57 MET53 NDP301 PHE56 PHE91 PRO88 SER86 THR180 THR54 THR83 TYR162 VAL156 VAL30 VAL31 VAL87
Current overlap10Native recall0.50
Jaccard0.37RMSD-
HB strict1Strict recall0.14
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

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
593 0.912154842006513 -0.775127 -24.8327 2 17 0 0.00 0.00 - no Open
608 1.215222881182832 -0.778051 -22.7537 4 19 0 0.00 0.00 - no Open
605 1.9928994056526665 -0.742342 -22.9307 4 15 0 0.00 0.00 - no Open
601 2.51145667632488 -0.848909 -17.9326 3 17 10 0.50 0.20 - no Current
624 3.0107378610278723 -1.0098 -30.9262 13 25 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 -17.933kcal/mol
Ligand efficiency (LE) -0.5434kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -5.392
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 33HA

Physicochemical properties

Molecular weight 548.4Da
Lipinski: ≤ 500 Da
LogP (cLogP) 4.56
Lipinski: ≤ 5
Rotatable bonds 6

Conformational strain (MMFF94s)

Strain energy (ΔE) 50.47kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 98.77kcal/mol
Minimised FF energy 48.30kcal/mol

SASA & burial

✓ computed
SASA (unbound) 757.8Ų
Total solvent-accessible surface area of free ligand
BSA total 666.9Ų
Buried surface area upon binding
BSA apolar 480.5Ų
Hydrophobic contacts buried
BSA polar 186.4Ų
Polar contacts buried
Fraction buried 88.0%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 72.1%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1539.3Ų
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 1820.7Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 830.4Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)