FAIRMol

Z49615771

Pose ID 4706 Compound 2937 Pose 643

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 Z49615771
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 but geometrically suspicious
Binding strong Geometry low Native strong SASA done
Strain ΔE
14.7 kcal/mol
Protein clashes
7
Internal clashes
7
Native overlap
contact recall 0.37, Jaccard 0.28, H-bond role recall 0.60
Burial
95%
Hydrophobic fit
80%
Reason: 7 internal clashes
7 protein-contact clashes 7 intramolecular clashes
Molecular report
Full metrics ↗
Promising Reasonable quality metrics. Warrants further investigation.
✓ Excellent LE (-1.604 kcal/mol/HA) ✓ Good fit quality (FQ -13.15) ✓ Strong H-bond network (6 bonds) ✓ Deep burial (95% SASA buried) ✓ Lipophilic contacts well-matched (80%) ✗ Moderate strain (14.7 kcal/mol) ✗ Geometry warnings ✗ Internal clashes (7)
Score
-30.477
kcal/mol
LE
-1.604
kcal/mol/HA
Fit Quality
-13.15
FQ (Leeson)
HAC
19
heavy atoms
MW
256
Da
LogP
1.86
cLogP
Strain ΔE
14.7 kcal/mol
SASA buried
95%
Lipo contact
80% BSA apolar/total
SASA unbound
498 Ų
Apolar buried
377 Ų

Interaction summary

HB 6 HY 24 PI 2 CLASH 7

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

Final rank3.635Score-30.477
Inter norm-1.686Intra norm0.082
Top1000noExcludedno
Contacts13H-bonds6
Artifact reasongeometry warning; 7 clashes; 3 protein clashes
Residues
ARG14 ASN175 ASP161 ASP165 CYS168 GLN166 MET163 NAP301 PHE171 PHE97 PRO167 TYR174 VAL164

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 overlap7Native recall0.37
Jaccard0.28RMSD-
HB strict2Strict recall0.33
HB same residue+role3HB role recall0.60
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
643 3.63511280072951 -1.68603 -30.4767 6 13 7 0.37 0.60 - no Current
645 3.816307744813925 -1.66552 -34.3713 12 16 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 -30.477kcal/mol
Ligand efficiency (LE) -1.6040kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -13.148
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 19HA

Physicochemical properties

Molecular weight 256.3Da
Lipinski: ≤ 500 Da
LogP (cLogP) 1.86
Lipinski: ≤ 5
Rotatable bonds 5

Conformational strain (MMFF94s)

Strain energy (ΔE) 14.73kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 81.02kcal/mol
Minimised FF energy 66.29kcal/mol

SASA & burial

✓ computed
SASA (unbound) 497.5Ų
Total solvent-accessible surface area of free ligand
BSA total 474.1Ų
Buried surface area upon binding
BSA apolar 377.0Ų
Hydrophobic contacts buried
BSA polar 97.1Ų
Polar contacts buried
Fraction buried 95.3%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 79.5%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1502.7Ų
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 938.0Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)