FAIRMol

CKP-29

Pose ID 5008 Compound 2962 Pose 267

DB fairmolDocking pose analysis is being read from this database.
Molecular metrics status: done
RDKit SASA-based burial metrics are cached.
SASA cached
T08
T. brucei PTR1 T. brucei
Ligand CKP-29
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 mixed SASA done
Strain ΔE
7.0 kcal/mol
Protein clashes
4
Internal clashes
5
Native overlap
contact recall 0.47, Jaccard 0.39, H-bond role recall 0.20
Burial
97%
Hydrophobic fit
93%
Reason: no major geometry red flags detected
4 protein-contact clashes 5 intramolecular clashes
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Low conformational strain (7.0 kcal/mol) ✓ Excellent LE (-1.538 kcal/mol/HA) ✓ Good fit quality (FQ -13.12) ✓ Good H-bonds (5 bonds) ✓ Deep burial (97% SASA buried) ✓ Lipophilic contacts well-matched (93%) ✗ Geometry warnings ✗ Minor protein-contact clashes (4) ✗ Many internal clashes (10)
Score
-32.295
kcal/mol
LE
-1.538
kcal/mol/HA
Fit Quality
-13.12
FQ (Leeson)
HAC
21
heavy atoms
MW
273
Da
LogP
3.82
cLogP
Strain ΔE
7.0 kcal/mol
SASA buried
97%
Lipo contact
93% BSA apolar/total
SASA unbound
513 Ų
Apolar buried
461 Ų

Interaction summary

HB 5 HY 24 PI 4 CLASH 5

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 rank0.114Score-32.295
Inter norm-1.584Intra norm0.046
Top1000noExcludedno
Contacts13H-bonds5
Artifact reasongeometry warning; 10 clashes; 4 protein contact clashes; 1 severe cofactor-context clash
Residues
ARG14 ASN175 ASP161 CYS168 LEU208 MET163 NAP301 PHE171 PHE97 PRO167 SER95 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 overlap9Native recall0.47
Jaccard0.39RMSD-
HB strict2Strict recall0.33
HB same residue+role1HB role recall0.20
HB same residue2HB residue recall0.40

Protein summary

258 residues
Protein targetT08Atoms3881
Residues258Chains2
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
267 0.11411548350067288 -1.58387 -32.2954 5 13 9 0.47 0.20 - no Current

Molecular metrics

RDKit SASA burial, strain energy (MMFF94s), ligand efficiency and fit quality for this docking pose.
✓ Metrics available

Scoring & efficiency

Docking score -32.295kcal/mol
Ligand efficiency (LE) -1.5379kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -13.118
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 21HA

Physicochemical properties

Molecular weight 273.3Da
Lipinski: ≤ 500 Da
LogP (cLogP) 3.82
Lipinski: ≤ 5
Rotatable bonds 3

Conformational strain (MMFF94s)

Strain energy (ΔE) 7.01kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 58.37kcal/mol
Minimised FF energy 51.36kcal/mol

SASA & burial

✓ computed
SASA (unbound) 512.8Ų
Total solvent-accessible surface area of free ligand
BSA total 496.4Ų
Buried surface area upon binding
BSA apolar 461.2Ų
Hydrophobic contacts buried
BSA polar 35.2Ų
Polar contacts buried
Fraction buried 96.8%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 92.9%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1598.7Ų
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 930.8Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)