FAIRMol

MK217

Pose ID 1006 Compound 892 Pose 328

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 MK217
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
Promising but geometrically suspicious
Binding strong Geometry low Native strong SASA done
Strain ΔE
17.2 kcal/mol
Protein clashes
0
Internal clashes
12
Native overlap
contact recall 0.67, Jaccard 0.58, H-bond role recall 0.00
Burial
94%
Hydrophobic fit
79%
Reason: 12 internal clashes
12 intramolecular clashes
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-0.845 kcal/mol/HA) ✓ Good fit quality (FQ -8.15) ✓ Deep burial (94% SASA buried) ✓ Lipophilic contacts well-matched (79%) ✗ Moderate strain (17.2 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (12)
Score
-25.347
kcal/mol
LE
-0.845
kcal/mol/HA
Fit Quality
-8.15
FQ (Leeson)
HAC
30
heavy atoms
MW
427
Da
LogP
4.61
cLogP
Strain ΔE
17.2 kcal/mol
SASA buried
94%
Lipo contact
79% BSA apolar/total
SASA unbound
626 Ų
Apolar buried
466 Ų

Interaction summary

HB 2 HY 23 PI 2 CLASH 0
Final rank2.114Score-25.347
Inter norm-0.855Intra norm0.010
Top1000noExcludedno
Contacts17H-bonds2
Artifact reasongeometry warning; 12 clashes; 1 protein clash
Residues
ALA10 ARG29 ASN65 ASP22 GLU31 ILE61 LEU23 LEU28 LEU68 NAP201 PHE32 PHE35 PRO27 PRO62 SER60 THR57 VAL116

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

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 overlap14Native recall0.67
Jaccard0.58RMSD-
HB strict0Strict recall0.00
HB same residue+role0HB role recall0.00
HB same residue0HB residue recall0.00

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.

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
271 0.33329873631733 -1.34281 -36.348 7 18 0 0.00 0.00 - no Open
258 1.3392324839671519 -0.81043 -19.2443 4 18 0 0.00 0.00 - no Open
264 1.5746756141716811 -1.21355 -30.9473 7 16 0 0.00 0.00 - no Open
265 1.6344119354406168 -0.951662 -25.7152 6 12 0 0.00 0.00 - no Open
246 1.983765066084416 -1.07479 -29.1429 4 17 0 0.00 0.00 - no Open
328 2.1144353827617395 -0.854583 -25.3471 2 17 14 0.67 0.00 - no Current
287 2.915809060586571 -1.02101 -25.5206 12 18 0 0.00 0.00 - no Open
311 4.111083386289892 -0.863187 -20.0163 8 14 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 -25.347kcal/mol
Ligand efficiency (LE) -0.8449kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -8.150
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 30HA

Physicochemical properties

Molecular weight 426.5Da
Lipinski: ≤ 500 Da
LogP (cLogP) 4.61
Lipinski: ≤ 5
Rotatable bonds 7

Conformational strain (MMFF94s)

Strain energy (ΔE) 17.23kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 63.50kcal/mol
Minimised FF energy 46.28kcal/mol

SASA & burial

✓ computed
SASA (unbound) 626.3Ų
Total solvent-accessible surface area of free ligand
BSA total 587.4Ų
Buried surface area upon binding
BSA apolar 465.8Ų
Hydrophobic contacts buried
BSA polar 121.6Ų
Polar contacts buried
Fraction buried 93.8%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 79.3%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1581.8Ų
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 593.1Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)