FAIRMol

Z56071560

Pose ID 1975 Compound 535 Pose 620

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 Z56071560

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
58.6 kcal/mol
Protein clashes
4
Internal clashes
4
Native overlap
contact recall 0.55, Jaccard 0.52, H-bond role recall 0.20
Burial
73%
Hydrophobic fit
78%
Reason: strain 58.6 kcal/mol
strain ΔE 58.6 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 (-0.524 kcal/mol/HA) ✓ Good fit quality (FQ -5.37) ✓ Good H-bonds (4 bonds) ✓ Deep burial (73% SASA buried) ✓ Lipophilic contacts well-matched (78%) ✗ Extreme strain energy (58.6 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (12)
Score
-19.398
kcal/mol
LE
-0.524
kcal/mol/HA
Fit Quality
-5.37
FQ (Leeson)
HAC
37
heavy atoms
MW
564
Da
LogP
4.66
cLogP
Strain ΔE
58.6 kcal/mol
SASA buried
73%
Lipo contact
78% BSA apolar/total
SASA unbound
828 Ų
Apolar buried
475 Ų

Interaction summary

HB 4 HY 24 PI 2 CLASH 4
Final rank3.040Score-19.398
Inter norm-0.754Intra norm0.230
Top1000noExcludedno
Contacts12H-bonds4
Artifact reasongeometry warning; 12 clashes; 1 protein clash; high strain Δ 58.6
Residues
ARG97 ILE45 LEU94 LYS57 LYS95 MET53 NDP301 PHE56 PHE91 THR54 THR83 VAL156

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 overlap11Native recall0.55
Jaccard0.52RMSD-
HB strict2Strict recall0.29
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
617 1.2286859477856493 -0.645289 -22.1086 3 18 0 0.00 0.00 - no Open
604 1.3266441361771943 -0.860678 -32.0683 3 18 0 0.00 0.00 - no Open
607 1.6982015379180018 -0.786127 -23.3734 7 17 1 0.05 0.00 - no Open
620 3.0402899482083474 -0.753862 -19.3978 4 12 11 0.55 0.20 - no Current
614 3.0543374942600416 -0.713983 -28.0903 2 18 0 0.00 0.00 - no Open
618 3.0637516082477028 -0.704842 -27.8068 2 17 0 0.00 0.00 - no Open
633 3.075363984433379 -0.65572 -22.113 7 18 0 0.00 0.00 - no Open
630 3.1325723545274675 -0.679026 -25.8742 9 21 0 0.00 0.00 - no Open
616 4.10639197949174 -0.722302 -26.282 8 17 0 0.00 0.00 - no Open
633 4.4909211152057775 -0.744179 -23.8511 8 18 0 0.00 0.00 - no Open
631 5.0140432502219925 -0.734809 -23.4523 5 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 -19.398kcal/mol
Ligand efficiency (LE) -0.5243kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -5.367
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 37HA

Physicochemical properties

Molecular weight 564.1Da
Lipinski: ≤ 500 Da
LogP (cLogP) 4.66
Lipinski: ≤ 5
Rotatable bonds 8

Conformational strain (MMFF94s)

Strain energy (ΔE) 58.62kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 20.56kcal/mol
Minimised FF energy -38.06kcal/mol

SASA & burial

✓ computed
SASA (unbound) 827.6Ų
Total solvent-accessible surface area of free ligand
BSA total 604.7Ų
Buried surface area upon binding
BSA apolar 474.9Ų
Hydrophobic contacts buried
BSA polar 129.8Ų
Polar contacts buried
Fraction buried 73.1%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 78.5%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1583.4Ų
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 870.0Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)