FAIRMol

Z49633576

Pose ID 1277 Compound 992 Pose 599

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 Z49633576
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
72.6 kcal/mol
Protein clashes
0
Internal clashes
12
Native overlap
contact recall 0.81, Jaccard 0.77, H-bond role recall 0.20
Burial
91%
Hydrophobic fit
63%
Reason: 12 internal clashes, strain 72.6 kcal/mol
strain ΔE 72.6 kcal/mol 12 intramolecular clashes
Molecular report
Full metrics ↗
Reject Multiple quality flags — this pose should be deprioritised or discarded.
✓ Excellent LE (-0.581 kcal/mol/HA) ✓ Good fit quality (FQ -5.60) ✓ Strong H-bond network (6 bonds) ✓ Deep burial (91% SASA buried) ✓ Lipophilic contacts well-matched (63%) ✗ Extreme strain energy (72.6 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (12)
Score
-17.418
kcal/mol
LE
-0.581
kcal/mol/HA
Fit Quality
-5.60
FQ (Leeson)
HAC
30
heavy atoms
MW
439
Da
LogP
1.07
cLogP
Strain ΔE
72.6 kcal/mol
SASA buried
91%
Lipo contact
63% BSA apolar/total
SASA unbound
647 Ų
Apolar buried
368 Ų

Interaction summary

HB 6 HY 14 PI 1 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 rank3.152Score-17.418
Inter norm-0.858Intra norm0.278
Top1000noExcludedno
Contacts18H-bonds6
Artifact reasongeometry warning; 12 clashes; 2 protein clashes; 1 cofactor-context clash; high strain Δ 72.6
Residues
ALA10 ARG71 ASN65 ASP22 GLN36 GLY21 ILE61 ILE8 LEU23 LEU68 NAP201 PHE32 PHE35 PRO62 SER60 THR57 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 overlap17Native recall0.81
Jaccard0.77RMSD-
HB strict1Strict recall0.20
HB same residue+role1HB role recall0.20
HB same residue1HB residue recall0.20

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

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
592 1.088467834021099 -1.21638 -35.5119 11 17 0 0.00 0.00 - no Open
591 1.279920394623608 -0.958585 -27.9306 8 14 0 0.00 0.00 - no Open
614 2.169494058727323 -0.722846 -19.1394 4 9 0 0.00 0.00 - no Open
614 2.3485621669480374 -0.756077 -21.8538 8 17 0 0.00 0.00 - no Open
608 2.3978756382173834 -0.914409 -20.3444 11 15 0 0.00 0.00 - no Open
607 2.7193451061352016 -1.01606 -22.4387 11 12 0 0.00 0.00 - no Open
599 3.151702278102694 -0.858251 -17.4184 6 18 17 0.81 0.20 - no Current
605 4.43482713094104 -1.22494 -33.3039 11 22 0 0.00 0.00 - no Open
602 4.713471072673453 -1.10206 -23.637 16 19 0 0.00 0.00 - no Open
613 5.4625540130581856 -1.04999 -29.3846 12 17 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 -17.418kcal/mol
Ligand efficiency (LE) -0.5806kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -5.601
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 30HA

Physicochemical properties

Molecular weight 439.4Da
Lipinski: ≤ 500 Da
LogP (cLogP) 1.07
Lipinski: ≤ 5
Rotatable bonds 8

Conformational strain (MMFF94s)

Strain energy (ΔE) 72.59kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 111.85kcal/mol
Minimised FF energy 39.26kcal/mol

SASA & burial

✓ computed
SASA (unbound) 646.8Ų
Total solvent-accessible surface area of free ligand
BSA total 587.4Ų
Buried surface area upon binding
BSA apolar 368.5Ų
Hydrophobic contacts buried
BSA polar 218.9Ų
Polar contacts buried
Fraction buried 90.8%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 62.7%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1478.1Ų
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 605.7Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)