FAIRMol

MK212

Pose ID 4330 Compound 292 Pose 267

DB fairmolDocking pose analysis is being read from this database.
Molecular metrics status: done
RDKit SASA-based burial metrics are cached.
SASA cached
T07
T. brucei PTR1 T. brucei
Ligand MK212
PDB6RX6

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
19.4 kcal/mol
Protein clashes
5
Internal clashes
13
Native overlap
contact recall 0.63, Jaccard 0.52, H-bond role recall 0.40
Burial
86%
Hydrophobic fit
84%
Reason: 13 internal clashes
5 protein-contact clashes 13 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
No
ADMET alerts (in-silico)
hERG Low Ames Clear DILI Low
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-0.812 kcal/mol/HA) ✓ Good fit quality (FQ -7.83) ✓ Deep burial (86% SASA buried) ✓ Lipophilic contacts well-matched (84%) ✗ Moderate strain (19.4 kcal/mol) ✗ Geometry warnings ✗ Protein-contact clashes (5) ✗ Many internal clashes (13)
Score
-24.348
kcal/mol
LE
-0.812
kcal/mol/HA
Fit Quality
-7.83
FQ (Leeson)
HAC
30
heavy atoms
MW
409
Da
LogP
3.80
cLogP
Final rank
1.2593
rank score
Inter norm
-1.056
normalised
Contacts
16
H-bonds 4
Strain ΔE
19.4 kcal/mol
SASA buried
86%
Lipo contact
84% BSA apolar/total
SASA unbound
671 Ų
Apolar buried
483 Ų

Interaction summary

HBD 1 HBA 1 HY 8 PI 6 CLASH 0

HBD/HBA · H-bonds (geometric)

HBD = ligand donates H · HBA = ligand accepts H · ~ = weak (≥110°). Mode: strict. Residues: 2.

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.

Native ligand reference

★ reference
Interaction fingerprint calculated directly from the uploaded native ligand without docking. Current H-bond mode: strict.
NameTbPTR1_cW_6RX6_ReadyContacts19
PoseOpen native poseHB0
IFP residues
ARG14 ASP161 CYS168 GLY205 LEU208 LEU209 LYS178 MET213 NAP301 PHE171 PHE97 PRO210 PRO99 SER207 SER95 TRP221 TYR174 TYR98 VAL206
Current overlap12Native recall0.63
Jaccard0.52RMSD-
HB strict1Strict recall0.17
HB same residue+role2HB role recall0.40
HB same residue2HB residue recall0.40

Protein summary

275 residues
Protein targetT07Atoms3932
Residues275Chains3
Residue summaryLEU:437; VAL:433; ALA:361; ARG:288; ILE:266; GLU:210; LYS:198; SER:198; ASN:182; THR:154; GLN:153; PHE:140; PRO:140; TYR:126; GLY:112; HIS:103

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:NAP301

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
267 1.2592768471802838 -1.0565 -24.3478 4 16 12 0.63 0.40 - no Current
334 1.8775945095275897 -0.891386 -23.6338 4 18 0 0.00 0.00 - no Open
283 2.157696689478699 -0.896443 -22.4987 5 15 0 0.00 0.00 - no Open
237 2.755421359140807 -1.00568 -23.1964 11 23 0 0.00 0.00 - no Open
324 2.912870273883293 -0.917016 -25.5199 4 18 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 -24.348kcal/mol
Ligand efficiency (LE) -0.8116kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -7.829
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) 19.43kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 39.45kcal/mol
Minimised FF energy 20.02kcal/mol

SASA & burial

✓ computed
SASA (unbound) 671.1Ų
Total solvent-accessible surface area of free ligand
BSA total 575.6Ų
Buried surface area upon binding
BSA apolar 483.4Ų
Hydrophobic contacts buried
BSA polar 92.2Ų
Polar contacts buried
Fraction buried 85.8%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 84.0%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1680.4Ų
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 2051.9Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 911.3Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)