FAIRMol

OHD_Leishmania_191

Pose ID 4763 Compound 3139 Pose 22

DB fairmolDocking pose analysis is being read from this database.
Molecular metrics status: done
RDKit SASA-based burial metrics are cached.
SASA cached
T08
T. brucei PTR1 T. brucei
Ligand OHD_Leishmania_191
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
Weak or marginal quality
Binding strong Geometry high Native strong SASA done
Strain ΔE
25.6 kcal/mol
Protein clashes
1
Internal clashes
2
Native overlap
contact recall 0.53, Jaccard 0.45, H-bond role recall 0.80
Burial
79%
Hydrophobic fit
61%
Reason: no major geometry red flags detected
1 protein-contact clashes 61% of hydrophobic surface is solvent-exposed (11/18 atoms). Large non-polar area without protein contacts incurs a desolvation penalty and will reduce binding affinity. Consider truncating or replacing the exposed fragment.
EcoTox / ADMET In-silico prediction only
Fish LC₅₀
Not classified (>100 mg/L)
Daphnia EC₅₀
Not classified (>100 mg/L)
Algae IC₅₀
Not classified (>100 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 (-1.149 kcal/mol/HA) ✓ Good fit quality (FQ -10.58) ✓ Strong H-bond network (6 bonds) ✓ Deep burial (79% SASA buried) ✓ Lipophilic contacts well-matched (61%) ✗ High strain energy (25.6 kcal/mol) ✗ Geometry warnings ✗ Internal clashes (9)
Score
-29.867
kcal/mol
LE
-1.149
kcal/mol/HA
Fit Quality
-10.58
FQ (Leeson)
HAC
26
heavy atoms
MW
362
Da
LogP
1.68
cLogP
Final rank
2.5839
rank score
Inter norm
-1.263
normalised
Contacts
13
H-bonds 13
Strain ΔE
25.6 kcal/mol
SASA buried
79%
Lipo contact
61% BSA apolar/total
SASA unbound
622 Ų
Apolar buried
300 Ų

Interaction summary

HBD 2 HBA 4 HY 2 PI 1 CLASH 2

HBD/HBA · H-bonds (geometric)

HBD = ligand donates H · HBA = ligand accepts H · ~ = weak (≥110°). Mode: permissive. Residues: 5.

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: permissive.
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 overlap10Native recall0.53
Jaccard0.45RMSD-
HB strict3Strict recall0.50
HB same residue+role4HB role recall0.80
HB same residue4HB residue recall0.80

Protein summary

258 residues
Protein targetT08Atoms3881
Residues258Chains2
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
22 2.5838861387704606 -1.2632 -29.867 13 13 10 0.53 0.80 - no Current
4 2.70442284656063 -1.34129 -30.5375 15 20 0 0.00 0.00 - no Open
6 2.907867000834636 -1.15827 -16.6114 14 22 0 0.00 0.00 - no Open
6 3.6448564737975433 -1.05551 -17.6369 16 18 0 0.00 0.00 - no Open
15 4.181017864864475 -0.86664 -19.3626 8 11 0 0.00 0.00 - no Open
4 4.813112935699173 -1.0527 -24.8236 15 19 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 -29.867kcal/mol
Ligand efficiency (LE) -1.1487kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -10.584
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 26HA

Physicochemical properties

Molecular weight 362.3Da
Lipinski: ≤ 500 Da
LogP (cLogP) 1.68
Lipinski: ≤ 5
Rotatable bonds 11

Conformational strain (MMFF94s)

Strain energy (ΔE) 25.62kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 55.31kcal/mol
Minimised FF energy 29.69kcal/mol

SASA & burial

✓ computed
SASA (unbound) 622.0Ų
Total solvent-accessible surface area of free ligand
BSA total 493.2Ų
Buried surface area upon binding
BSA apolar 299.9Ų
Hydrophobic contacts buried
BSA polar 193.3Ų
Polar contacts buried
Fraction buried 79.3%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 60.8%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1512.6Ų
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 962.0Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)