FAIRMol

MK153

Pose ID 326 Compound 281 Pose 326

DB SELECTIONDocking 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 MK153
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
Weak or marginal quality
Binding strong Geometry medium Native strong SASA done
Strain ΔE
18.1 kcal/mol
Protein clashes
4
Internal clashes
4
Native overlap
contact recall 0.90, Jaccard 0.90, H-bond role recall 0.60
Burial
95%
Hydrophobic fit
84%
Reason: no major geometry red flags detected
4 protein-contact clashes 4 intramolecular clashes
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-0.852 kcal/mol/HA) ✓ Good fit quality (FQ -8.22) ✓ Strong H-bond network (7 bonds) ✓ Deep burial (95% SASA buried) ✓ Lipophilic contacts well-matched (84%) ✗ Moderate strain (18.1 kcal/mol) ✗ Geometry warnings ✗ Protein-contact clashes (8) ✗ Many internal clashes (13)
Score
-25.569
kcal/mol
LE
-0.852
kcal/mol/HA
Fit Quality
-8.22
FQ (Leeson)
HAC
30
heavy atoms
MW
409
Da
LogP
4.74
cLogP
Strain ΔE
18.1 kcal/mol
SASA buried
95%
Lipo contact
84% BSA apolar/total
SASA unbound
626 Ų
Apolar buried
500 Ų

Interaction summary

HB 7 HY 24 PI 3 CLASH 4
Final rank1.829Score-25.569
Inter norm-0.899Intra norm0.046
Top1000noExcludedno
Contacts19H-bonds7
Artifact reasongeometry warning; 13 clashes; 8 protein contact clashes
Residues
ALA10 ASN65 ASP22 GLN36 GLU31 GLY117 ILE61 ILE8 LEU23 LEU68 NAP201 PHE32 PHE35 PRO62 SER60 THR57 TYR122 VAL116 VAL9

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

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 overlap19Native recall0.90
Jaccard0.90RMSD-
HB strict3Strict recall0.60
HB same residue+role3HB role recall0.60
HB same residue3HB residue recall0.60

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
310 1.2555382352014435 -1.09939 -30.6664 5 15 0 0.00 0.00 - no Open
326 1.828910047616471 -0.898609 -25.5694 7 19 19 0.90 0.60 - no Current
311 1.879617822955855 -0.85989 -24.8487 3 18 16 0.76 0.20 - no Open
292 3.512486674917338 -0.795666 -21.7378 7 18 0 0.00 0.00 - no Open
294 4.645587797690148 -0.854635 -20.9018 7 14 0 0.00 0.00 - no Open
211 5.630919589939077 -0.977084 -24.9075 12 16 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 -25.569kcal/mol
Ligand efficiency (LE) -0.8523kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -8.222
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 30HA

Physicochemical properties

Molecular weight 409.5Da
Lipinski: ≤ 500 Da
LogP (cLogP) 4.74
Lipinski: ≤ 5
Rotatable bonds 7

Conformational strain (MMFF94s)

Strain energy (ΔE) 18.07kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 49.37kcal/mol
Minimised FF energy 31.30kcal/mol

SASA & burial

✓ computed
SASA (unbound) 625.8Ų
Total solvent-accessible surface area of free ligand
BSA total 594.6Ų
Buried surface area upon binding
BSA apolar 500.4Ų
Hydrophobic contacts buried
BSA polar 94.2Ų
Polar contacts buried
Fraction buried 95.0%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 84.2%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1605.7Ų
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 603.8Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)