FAIRMol

MK215

Pose ID 1005 Compound 980 Pose 327

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 MK215
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 high Native strong SASA done
Strain ΔE
15.4 kcal/mol
Protein clashes
1
Internal clashes
1
Native overlap
contact recall 0.81, Jaccard 0.65, H-bond role recall 0.60
Burial
92%
Hydrophobic fit
77%
Reason: no major geometry red flags detected
1 protein-contact clashes
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-0.857 kcal/mol/HA) ✓ Good fit quality (FQ -8.26) ✓ Strong H-bond network (7 bonds) ✓ Deep burial (92% SASA buried) ✓ Lipophilic contacts well-matched (77%) ✗ Moderate strain (15.4 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (10)
Score
-25.698
kcal/mol
LE
-0.857
kcal/mol/HA
Fit Quality
-8.26
FQ (Leeson)
HAC
30
heavy atoms
MW
409
Da
LogP
3.80
cLogP
Strain ΔE
15.4 kcal/mol
SASA buried
92%
Lipo contact
77% BSA apolar/total
SASA unbound
648 Ų
Apolar buried
457 Ų

Interaction summary

HB 7 HY 24 PI 2 CLASH 1

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

Final rank2.987Score-25.698
Inter norm-0.919Intra norm0.063
Top1000noExcludedno
Contacts22H-bonds7
Artifact reasongeometry warning; 10 clashes; 2 protein clashes
Residues
ALA10 ARG29 ASN65 GLU31 ILE115 ILE61 ILE8 LEU23 LEU28 LEU68 NAP201 PHE32 PHE35 PRO27 PRO62 SER60 THR137 THR57 TRP25 TYR122 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
Jaccard0.65RMSD-
HB strict3Strict recall0.60
HB same residue+role3HB role recall0.60
HB same residue3HB residue recall0.60

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
233 1.8428601500822481 -1.04592 -26.5554 12 16 0 0.00 0.00 - no Open
318 2.5467751268775465 -0.65051 -15.8541 4 9 0 0.00 0.00 - no Open
268 2.7705616902011543 -1.0526 -28.622 12 13 0 0.00 0.00 - no Open
212 2.863444887452424 -0.948161 -19.8913 14 13 0 0.00 0.00 - no Open
327 2.987201405603104 -0.919315 -25.6982 7 22 17 0.81 0.60 - no Current
206 3.2169290875610765 -1.04357 -26.4577 9 19 0 0.00 0.00 - no Open
325 3.260669336411137 -0.926625 -22.6233 4 13 0 0.00 0.00 - no Open
247 3.4667837154767405 -0.975337 -23.0078 5 15 0 0.00 0.00 - no Open
285 4.189069699505982 -0.841824 -23.0251 11 17 0 0.00 0.00 - no Open
309 4.503406492657552 -1.08458 -27.3937 10 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 -25.698kcal/mol
Ligand efficiency (LE) -0.8566kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -8.263
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 30HA

Physicochemical properties

Molecular weight 409.5Da
Lipinski: ≤ 500 Da
LogP (cLogP) 3.80
Lipinski: ≤ 5
Rotatable bonds 7

Conformational strain (MMFF94s)

Strain energy (ΔE) 15.44kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 27.78kcal/mol
Minimised FF energy 12.34kcal/mol

SASA & burial

✓ computed
SASA (unbound) 647.6Ų
Total solvent-accessible surface area of free ligand
BSA total 596.0Ų
Buried surface area upon binding
BSA apolar 456.9Ų
Hydrophobic contacts buried
BSA polar 139.2Ų
Polar contacts buried
Fraction buried 92.0%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 76.7%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1594.3Ų
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 591.6Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)