FAIRMol

MK170

Pose ID 329 Compound 610 Pose 329

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 MK170
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 mixed SASA done
Strain ΔE
50.8 kcal/mol
Protein clashes
3
Internal clashes
3
Native overlap
contact recall 0.52, Jaccard 0.44, H-bond role recall 0.20
Burial
86%
Hydrophobic fit
75%
Reason: strain 50.8 kcal/mol
strain ΔE 50.8 kcal/mol 3 protein-contact clashes 3 intramolecular clashes
Molecular report
Full metrics ↗
Reject Multiple quality flags — this pose should be deprioritised or discarded.
✓ Excellent LE (-0.956 kcal/mol/HA) ✓ Good fit quality (FQ -9.02) ✓ Strong H-bond network (6 bonds) ✓ Deep burial (86% SASA buried) ✓ Lipophilic contacts well-matched (75%) ✗ Extreme strain energy (50.8 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (10)
Score
-26.761
kcal/mol
LE
-0.956
kcal/mol/HA
Fit Quality
-9.02
FQ (Leeson)
HAC
28
heavy atoms
MW
380
Da
LogP
-0.56
cLogP
Strain ΔE
50.8 kcal/mol
SASA buried
86%
Lipo contact
75% BSA apolar/total
SASA unbound
603 Ų
Apolar buried
390 Ų

Interaction summary

HB 6 HY 24 PI 3 CLASH 3
Final rank3.801Score-26.761
Inter norm-1.000Intra norm0.044
Top1000noExcludedno
Contacts15H-bonds6
Artifact reasongeometry warning; 10 clashes; 2 protein clashes; high strain Δ 50.8
Residues
ALA10 ARG29 GLU31 ILE8 LEU23 LEU28 LEU68 NAP201 PHE32 PHE35 PRO27 TRP25 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 overlap11Native recall0.52
Jaccard0.44RMSD-
HB strict0Strict recall0.00
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
256 0.6371342073983419 -1.13539 -32.9952 5 17 0 0.00 0.00 - no Open
279 2.2895694425229127 -0.775031 -23.7894 6 14 0 0.00 0.00 - no Open
258 2.3082574907523856 -0.920788 -25.9475 2 11 0 0.00 0.00 - no Open
246 2.5807754920688057 -1.07356 -31.9657 8 13 0 0.00 0.00 - no Open
315 3.6374475031643327 -0.919227 -24.9111 8 16 11 0.52 0.20 - no Open
329 3.801166302435172 -0.999804 -26.7614 6 15 11 0.52 0.20 - no Current
220 6.065888531659836 -1.048 -29.0102 13 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 -26.761kcal/mol
Ligand efficiency (LE) -0.9558kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -9.023
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 28HA

Physicochemical properties

Molecular weight 380.4Da
Lipinski: ≤ 500 Da
LogP (cLogP) -0.56
Lipinski: ≤ 5
Rotatable bonds 4

Conformational strain (MMFF94s)

Strain energy (ΔE) 50.79kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 214.56kcal/mol
Minimised FF energy 163.77kcal/mol

SASA & burial

✓ computed
SASA (unbound) 603.4Ų
Total solvent-accessible surface area of free ligand
BSA total 521.5Ų
Buried surface area upon binding
BSA apolar 389.5Ų
Hydrophobic contacts buried
BSA polar 131.9Ų
Polar contacts buried
Fraction buried 86.4%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 74.7%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1534.1Ų
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 613.9Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)