FAIRMol

Z56948577

Pose ID 4619 Compound 680 Pose 556

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 Z56948577
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
24.1 kcal/mol
Protein clashes
0
Internal clashes
2
Native overlap
contact recall 0.74, Jaccard 0.74, H-bond role recall 0.00
Burial
92%
Hydrophobic fit
81%
Reason: no major geometry red flags detected
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-1.176 kcal/mol/HA) ✓ Good fit quality (FQ -10.69) ✓ Deep burial (92% SASA buried) ✓ Lipophilic contacts well-matched (81%) ✗ High strain energy (24.1 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (13)
Score
-29.406
kcal/mol
LE
-1.176
kcal/mol/HA
Fit Quality
-10.69
FQ (Leeson)
HAC
25
heavy atoms
MW
370
Da
LogP
4.24
cLogP
Strain ΔE
24.1 kcal/mol
SASA buried
92%
Lipo contact
81% BSA apolar/total
SASA unbound
553 Ų
Apolar buried
413 Ų

Interaction summary

HB 1 HY 24 PI 5 CLASH 2
Final rank0.235Score-29.406
Inter norm-1.213Intra norm0.036
Top1000noExcludedno
Contacts14H-bonds1
Artifact reasongeometry warning; 13 clashes; 3 cofactor-context clashes; moderate strain Δ 24.1
Residues
ARG14 CYS168 LEU208 LEU209 MET213 NAP301 PHE171 PHE97 PRO210 SER207 SER95 TRP221 TYR174 VAL206

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 overlap14Native recall0.74
Jaccard0.74RMSD-
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
556 0.2353671306069721 -1.21266 -29.4056 1 14 14 0.74 0.00 - no Current
577 0.5270859604734562 -1.02345 -24.8408 0 17 0 0.00 0.00 - no Open
564 0.8831646270966258 -1.26417 -29.0383 8 20 0 0.00 0.00 - no Open
558 1.2537495614942014 -0.945221 -20.8134 0 16 0 0.00 0.00 - no Open
577 1.744302853356079 -1.15616 -28.5191 2 12 0 0.00 0.00 - no Open
557 2.905364240290589 -1.14268 -26.402 3 15 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 -29.406kcal/mol
Ligand efficiency (LE) -1.1762kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -10.693
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 25HA

Physicochemical properties

Molecular weight 369.8Da
Lipinski: ≤ 500 Da
LogP (cLogP) 4.24
Lipinski: ≤ 5
Rotatable bonds 3

Conformational strain (MMFF94s)

Strain energy (ΔE) 24.13kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 93.56kcal/mol
Minimised FF energy 69.42kcal/mol

SASA & burial

✓ computed
SASA (unbound) 553.3Ų
Total solvent-accessible surface area of free ligand
BSA total 510.2Ų
Buried surface area upon binding
BSA apolar 412.9Ų
Hydrophobic contacts buried
BSA polar 97.3Ų
Polar contacts buried
Fraction buried 92.2%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 80.9%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1587.0Ų
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 920.8Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)