FAIRMol

Z53787229

Pose ID 4678 Compound 727 Pose 615

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 Z53787229
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 medium Native strong SASA done
Strain ΔE
16.9 kcal/mol
Protein clashes
3
Internal clashes
4
Native overlap
contact recall 0.58, Jaccard 0.48, H-bond role recall 0.40
Burial
98%
Hydrophobic fit
85%
Reason: no major geometry red flags detected
3 protein-contact clashes 4 intramolecular clashes
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-1.301 kcal/mol/HA) ✓ Good fit quality (FQ -11.48) ✓ Deep burial (98% SASA buried) ✓ Lipophilic contacts well-matched (85%) ✗ Moderate strain (16.9 kcal/mol) ✗ No H-bonds detected ✗ Geometry warnings ✗ Minor protein-contact clashes (3) ✗ Internal clashes (6)
Score
-29.916
kcal/mol
LE
-1.301
kcal/mol/HA
Fit Quality
-11.48
FQ (Leeson)
HAC
23
heavy atoms
MW
321
Da
LogP
4.33
cLogP
Final rank
-0.1388
rank score
Inter norm
-1.368
normalised
Contacts
15
H-bonds 7
Strain ΔE
16.9 kcal/mol
SASA buried
98%
Lipo contact
85% BSA apolar/total
SASA unbound
560 Ų
Apolar buried
464 Ų

Interaction summary

HB 0 HY 9 PI 4 CLASH 4

HBD/HBA · H-bonds (geometric)

No hbd/hba · h-bonds (geometric) detected for this pose.

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 overlap11Native recall0.58
Jaccard0.48RMSD-
HB strict1Strict recall0.17
HB same residue+role2HB role recall0.40
HB same residue3HB residue recall0.60

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
615 -0.13877304892115455 -1.36777 -29.9163 7 15 11 0.58 0.40 - no Current
612 0.9861117454075027 -1.15345 -24.7877 1 16 0 0.00 0.00 - no Open
609 1.3417724214874878 -1.08259 -22.7462 2 15 0 0.00 0.00 - no Open
626 1.6399470227938397 -0.910209 -17.2005 5 14 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 -29.916kcal/mol
Ligand efficiency (LE) -1.3007kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -11.480
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 23HA

Physicochemical properties

Molecular weight 321.4Da
Lipinski: ≤ 500 Da
LogP (cLogP) 4.33
Lipinski: ≤ 5
Rotatable bonds 4

Conformational strain (MMFF94s)

Strain energy (ΔE) 16.85kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 55.78kcal/mol
Minimised FF energy 38.93kcal/mol

SASA & burial

✓ computed
SASA (unbound) 559.5Ų
Total solvent-accessible surface area of free ligand
BSA total 548.1Ų
Buried surface area upon binding
BSA apolar 464.4Ų
Hydrophobic contacts buried
BSA polar 83.7Ų
Polar contacts buried
Fraction buried 98.0%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 84.7%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1599.5Ų
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 2051.9Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 925.8Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)