FAIRMol

MK204

Pose ID 11147 Compound 1932 Pose 304

DB fairmolDocking pose analysis is being read from this database.
Molecular metrics status: done
RDKit SASA-based burial metrics are cached.
SASA cached
T17
T. brucei TR (Doorstop site) T. brucei Doorstop site
Ligand MK204
PDB5S9T

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
31.9 kcal/mol
Protein clashes
3
Internal clashes
3
Native overlap
contact recall 0.75, Jaccard 0.50, H-bond role recall 0.00
Burial
81%
Hydrophobic fit
84%
Reason: no major geometry red flags detected
3 protein-contact clashes 3 intramolecular clashes
EcoTox / ADMET In-silico prediction only
Fish LC₅₀
Cat. 2 — Toxic (1–10 mg/L)
Daphnia EC₅₀
Cat. 2 — Toxic (1–10 mg/L)
Algae IC₅₀
Cat. 2 — Toxic (1–10 mg/L)
Bioaccum.
Not B (BCF≤2000)
Persistent
Yes
ADMET alerts (in-silico)
hERG High Ames Clear DILI Risk
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-0.736 kcal/mol/HA) ✓ Good fit quality (FQ -7.30) ✓ Strong H-bond network (6 bonds) ✓ Deep burial (81% SASA buried) ✓ Lipophilic contacts well-matched (84%) ✗ Very high strain energy (31.9 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (17)
Score
-24.298
kcal/mol
LE
-0.736
kcal/mol/HA
Fit Quality
-7.30
FQ (Leeson)
HAC
33
heavy atoms
MW
480
Da
LogP
4.20
cLogP
Final rank
4.7318
rank score
Inter norm
-0.712
normalised
Contacts
15
H-bonds 8
Strain ΔE
31.9 kcal/mol
SASA buried
81%
Lipo contact
84% BSA apolar/total
SASA unbound
678 Ų
Apolar buried
460 Ų

Interaction summary

HBD 1 HBA 5 HY 7 PI 2 CLASH 3

HBD/HBA · H-bonds (geometric)

HBD = ligand donates H · HBA = ligand accepts H · ~ = weak (≥110°). Mode: strict. Residues: 3.

PI · π–π interactions

Native π–π recall is disabled because no explicit native π–π reference was stored.

HY · Hydrophobic contacts

CLASH · Clashes

Native ligand reference

★ reference
Interaction fingerprint calculated directly from the uploaded native ligand without docking. Current H-bond mode: strict.
Name5S9TContacts12
PoseOpen native poseHB0
IFP residues
ALA365 ARG228 ARG331 GLY229 LEU332 LEU334 MET333 PHE198 PHE230 SER364 THR374 VAL366
Current overlap9Native recall0.75
Jaccard0.50RMSD-
HB strict0Strict recall0.00
HB same residue+role0HB role recall0.00
HB same residue0HB residue recall0.00

Protein summary

1033 residues
Protein targetT17Atoms15160
Residues1033Chains2
Residue summaryVAL:1536; LEU:1387; LYS:1386; ILE:1064; GLU:900; THR:868; ARG:816; PHE:800; ALA:780; ASN:700; PRO:686; GLY:672; SER:616; TYR:588; ASP:528; MET:408

Receptor context

2 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 2 Excluded HETATM 0
Kept cofactors / ions
A:FAD501 B:FAD501

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
262 3.542521780837294 -1.01297 -34.1664 3 12 0 0.00 0.00 - no Open
304 4.731773232476834 -0.711975 -24.2979 8 15 9 0.75 0.00 - no Current

Molecular metrics

RDKit SASA burial, strain energy (MMFF94s), ligand efficiency and fit quality for this docking pose.
✓ Metrics available

Scoring & efficiency

Docking score -24.298kcal/mol
Ligand efficiency (LE) -0.7363kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -7.305
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 33HA

Physicochemical properties

Molecular weight 479.8Da
Lipinski: ≤ 500 Da
LogP (cLogP) 4.20
Lipinski: ≤ 5
Rotatable bonds 6

Conformational strain (MMFF94s)

Strain energy (ΔE) 31.87kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 51.78kcal/mol
Minimised FF energy 19.90kcal/mol

SASA & burial

✓ computed
SASA (unbound) 678.0Ų
Total solvent-accessible surface area of free ligand
BSA total 546.2Ų
Buried surface area upon binding
BSA apolar 460.3Ų
Hydrophobic contacts buried
BSA polar 85.9Ų
Polar contacts buried
Fraction buried 80.6%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 84.3%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -6529.5Ų
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 8063.1Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 2119.1Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)