FAIRMol

Z1541758494

Pose ID 4505 Compound 2161 Pose 442

DB SELECTIONDocking 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 Z1541758494
PDB6RX6

3D complex viewer

Strict H-bonds Permissive H-bonds
Viewer legend
Protein receptor
Pocket residues
Cofactor context
Docked ligand
Overall assessment
Promising SASA cached
Promising and worth follow-up
Binding strong Geometry high Native mixed SASA done
Strain ΔE
13.7 kcal/mol
Protein clashes
2
Internal clashes
2
Native overlap
contact recall 0.53, Jaccard 0.43, H-bond role recall 0.00
Burial
97%
Hydrophobic fit
90%
Reason: no major geometry red flags detected
2 protein-contact clashes
Molecular report
Full metrics ↗
Promising Reasonable quality metrics. Warrants further investigation.
✓ Excellent LE (-1.233 kcal/mol/HA) ✓ Good fit quality (FQ -10.71) ✓ Deep burial (97% SASA buried) ✓ Lipophilic contacts well-matched (90%) ✗ Moderate strain (13.7 kcal/mol) ✗ Geometry warnings ✗ Minor protein-contact clashes (2) ✗ Internal clashes (8)
Score
-27.129
kcal/mol
LE
-1.233
kcal/mol/HA
Fit Quality
-10.71
FQ (Leeson)
HAC
22
heavy atoms
MW
294
Da
LogP
3.40
cLogP
Strain ΔE
13.7 kcal/mol
SASA buried
97%
Lipo contact
90% BSA apolar/total
SASA unbound
549 Ų
Apolar buried
482 Ų

Interaction summary

HB 2 HY 24 PI 2 CLASH 2
Final rank-0.133Score-27.129
Inter norm-1.396Intra norm0.163
Top1000noExcludedno
Contacts14H-bonds2
Artifact reasongeometry warning; 8 clashes; 2 protein contact clashes
Residues
ARG14 ASN175 ASP161 CYS168 LEU208 MET163 NAP301 PHE171 PHE97 PRO167 PRO210 TRP221 TYR174 VAL164

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

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 overlap10Native recall0.53
Jaccard0.43RMSD-
HB strict0Strict recall0.00
HB same residue+role0HB role recall0.00
HB same residue0HB residue recall0.00

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

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
442 -0.13323803886535446 -1.39637 -27.1289 2 14 10 0.53 0.00 - no Current
440 2.3511116772701954 -1.35203 -31.0759 5 13 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 -27.129kcal/mol
Ligand efficiency (LE) -1.2331kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -10.706
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 22HA

Physicochemical properties

Molecular weight 294.4Da
Lipinski: ≤ 500 Da
LogP (cLogP) 3.40
Lipinski: ≤ 5
Rotatable bonds 3

Conformational strain (MMFF94s)

Strain energy (ΔE) 13.71kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 71.39kcal/mol
Minimised FF energy 57.68kcal/mol

SASA & burial

✓ computed
SASA (unbound) 549.5Ų
Total solvent-accessible surface area of free ligand
BSA total 532.4Ų
Buried surface area upon binding
BSA apolar 482.1Ų
Hydrophobic contacts buried
BSA polar 50.3Ų
Polar contacts buried
Fraction buried 96.9%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 90.5%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1633.2Ų
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 916.7Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)