FAIRMol

Z56832158

Pose ID 4491 Compound 2721 Pose 428

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 Z56832158
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
14.3 kcal/mol
Protein clashes
3
Internal clashes
3
Native overlap
contact recall 0.68, Jaccard 0.57, H-bond role recall 0.00
Burial
98%
Hydrophobic fit
90%
Reason: no major geometry red flags detected
3 protein-contact clashes 3 intramolecular clashes
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-1.340 kcal/mol/HA) ✓ Good fit quality (FQ -11.83) ✓ Good H-bonds (3 bonds) ✓ Deep burial (98% SASA buried) ✓ Lipophilic contacts well-matched (90%) ✗ Moderate strain (14.3 kcal/mol) ✗ Geometry warnings ✗ Minor protein-contact clashes (3) ✗ Many internal clashes (10)
Score
-30.829
kcal/mol
LE
-1.340
kcal/mol/HA
Fit Quality
-11.83
FQ (Leeson)
HAC
23
heavy atoms
MW
305
Da
LogP
4.52
cLogP
Strain ΔE
14.3 kcal/mol
SASA buried
98%
Lipo contact
90% BSA apolar/total
SASA unbound
588 Ų
Apolar buried
524 Ų

Interaction summary

HB 3 HY 24 PI 3 CLASH 3

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 rank0.195Score-30.829
Inter norm-1.390Intra norm0.050
Top1000noExcludedno
Contacts17H-bonds3
Artifact reasongeometry warning; 10 clashes; 3 protein contact clashes
Residues
ARG14 ASN175 ASP161 CYS168 LEU208 LEU209 MET163 NAP301 PHE171 PHE97 PRO167 PRO210 SER95 TRP221 TYR174 VAL164 VAL206

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 overlap13Native recall0.68
Jaccard0.57RMSD-
HB strict0Strict recall0.00
HB same residue+role0HB role recall0.00
HB same residue1HB residue recall0.20

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
428 0.1950391297033565 -1.38991 -30.8293 3 17 13 0.68 0.00 - no Current
455 1.062913512785606 -1.50491 -30.7706 8 9 7 0.37 0.40 - no Open
438 3.3679033600549193 -1.03318 -22.8315 7 15 0 0.00 0.00 - no Open
440 3.5654522027493063 -1.21323 -21.6344 8 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 -30.829kcal/mol
Ligand efficiency (LE) -1.3404kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -11.830
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 23HA

Physicochemical properties

Molecular weight 305.4Da
Lipinski: ≤ 500 Da
LogP (cLogP) 4.52
Lipinski: ≤ 5
Rotatable bonds 4

Conformational strain (MMFF94s)

Strain energy (ΔE) 14.30kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 19.21kcal/mol
Minimised FF energy 4.91kcal/mol

SASA & burial

✓ computed
SASA (unbound) 588.1Ų
Total solvent-accessible surface area of free ligand
BSA total 579.1Ų
Buried surface area upon binding
BSA apolar 523.8Ų
Hydrophobic contacts buried
BSA polar 55.3Ų
Polar contacts buried
Fraction buried 98.5%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 90.4%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1661.3Ų
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 923.3Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)