BoltzMaker

ABL_KINASE packed 2026-08-23

1 Proteins
0 Co-folded partners
2 Ligands
1 Pockets
1 Apo structure references
5 Predictions

Campaign summary

Field Value Details
Input file boltz_input.md boltz_input.md
Proteins 1 2 protein block(s) in 1 group(s): ABL1 (1130 aa); ABLAP (1130 aa)
Co-folded partners 0 none
Ligands 2 IMATI (SMILES); DASAT (SMILES)
Pockets 1 1N1
Apo structure references 1 ABLAP
Predictions 5 ABL1_IMATI, ABL1_IMATI_1N1, ABL1_DASAT, ABL1_DASAT_1N1, ABLAP
Predict affinity yes pIC50 predicted for every ligand-bound prediction
Ligand chemistry 2 of 2 flagged IMATI, DASAT -- see "Ligand preparation" below
Boltz predict runtime 2h 33m 26s across 2 run invocations
Accelerator gpu gpu = Metal/CUDA backend used; cpu = no GPU available
Workers 0 parallel data-loading workers (Boltz's own default is 2)
MPS watermark 1.0 PYTORCH_MPS_HIGH_WATERMARK_RATIO cap -- lower avoids swap on Apple unified memory
Max parallel samples 1 Boltz's own --max_parallel_samples
Max MSA sequences 4096 cap on MSA sequences used for co-evolution features

Reference structures

The experimental structures this campaign was built on: where each pocket came from, and what the secondary-structure comparison measures against.

Pocket definitions

PocketFromProteinsContacts
1N12GQGABL118
STI1IEPABL1reference only

Secondary-structure references

ProteinStructureStateContentsChain
ABL12gqg.cifDFG-in, αC-in2 chain(s), bound: 1N1, PTRauto

A kinase's state is its DFG motif and αC helix, taken from the secondary-structure comparison.

Ligand definitions

LigandClassGiven asExperimental structure
IMATIControlSMILESSTI
DASATControlSMILES1N1

A control has been verified experimentally, by structure or by assay, so its prediction can be checked; an experimental compound is under investigation, with nothing to check against. Experimental compounds are ringed in red in the charts.

pIC50 vs confidence score

Click a point to open that target, in the panel below the Targets table.

pIC50 vs binder probability

Click a point to open that target, in the panel below the Targets table.

Ranked predicted pIC50

Click a point to open that target, in the panel below the Targets table.

Ranked confidence

Click a point to open that target, in the panel below the Targets table.

Summary table

IdentityAffinity Confidence (5)Structure
RunProteinLigandPocketClassSummaryBinderpIC50ScorepTMipTMLigpLDDTCIF
4ABL1DASAT1N1Control ⚠️0.9912.410.640.540.980.980.55CIF
2ABL1IMATI1N1Control ⚠️0.8310.380.630.540.980.980.55CIF
3ABL1DASATUncControl 0.9210.330.530.410.840.840.46CIF
1ABL1IMATIUncControl 0.368.330.470.400.570.570.45CIF
5ABLAPApoN/AN/AN/A N/AN/A0.530.48N/AN/A0.54CIF

Predictions

One row per prediction. Click one to see its pose and interactions, in the panel below.

Run Prediction Protein Ligand Pocket Class Confidence pIC50 Interactions Flags

Overall structure

Interaction diagram

Detected interactions

Metrics

Ligand pose

Superposed targets

Sequence

Pockets

1 named pocket(s) (1N1) plus an unconstrained baseline; contacts are enforced within 4 A.

PocketProteinLigandsRunsTargetsContacts
1N1ABL1IMATI, DASAT2, 4218 residue(s)
UnconstrainedABL1IMATI, DASAT1, 32none -- ligand placed freely

Where the ligands landed

Ligand preparation

2 of 2 ligand(s) flagged for chemistry review -- these are advisory, not errors; verify the input SMILES reflects what you intended before trusting the results below.

Ligand Chemistry notes
IMATI ionizable group(s) present (primary/secondary amine) -- verify the SMILES reflects your intended protonation state
DASAT ionizable group(s) present (primary/secondary amine) -- verify the SMILES reflects your intended protonation state

Ligand structures

No shared scaffold or substructure detected across the set -- ligands are structurally distinct.

Sundefined stereocentreAcarboxylic acidNprimary/secondary aminePhphenolSO3sulfonic acidsaltsalt/disconnected fragment
IMATIN
IMATI structure
MW 494 · cLogP 4.6 · TPSA 86
DASATN
DASAT structure
MW 488 · cLogP 3.3 · TPSA 107

Download PDF · Download SMILES

Scaffolds: Bemis-Murcko, exact match first, then Tanimoto-clustered (Morgan r=2, 2048-bit, threshold 0.60) whole-group MCS as a verified fallback. Minimum highlighted substructure size: 8 heavy atoms. Stereocentre/ionizable-group highlighting from this campaign's own ligand-preparation check (see above).

SSE motif shifts (apo vs holo)

IdentityShiftBackboneKinase state
FamilyTargetLigandMotifKindSourceN resRMSD (A)Centroid delta (A)Flagged phi/psiDFG apoDFG holoDFG deltaalphaC apoalphaC holoalphaC delta
ABL1ABL1_DASATDASATDFGloopkinase32.911.223inoutTrueininFalse
ABL1ABL1_DASATDASATDFGloopkinase33.231.703inotherTrueininFalse
ABL1ABL1_DASATDASATcatalytic_looploopkinase31.631.630inoutTrueininFalse
ABL1ABL1_DASATDASATcatalytic_looploopkinase30.910.900inotherTrueininFalse
ABL1ABL1_DASATDASAThingeloopkinase30.410.370inoutTrueininFalse
ABL1ABL1_DASATDASAThingeloopkinase30.490.450inotherTrueininFalse
ABL1ABL1_DASATDASATpocket_scaffoldloopkinase731.670.0012inoutTrueininFalse
ABL1ABL1_DASATDASATpocket_scaffoldloopkinase731.590.0010inotherTrueininFalse
ABL1ABL1_DASATDASATalphaC_Glupointkinase12.072.070inoutTrueininFalse
ABL1ABL1_DASATDASATalphaC_Glupointkinase11.871.870inotherTrueininFalse
ABL1ABL1_DASATDASATcatalytic_Lyspointkinase11.331.330inoutTrueininFalse
ABL1ABL1_DASATDASATcatalytic_Lyspointkinase10.670.670inotherTrueininFalse
ABL1ABL1_DASATDASATgatekeeperpointkinase10.360.360inoutTrueininFalse
ABL1ABL1_DASATDASATgatekeeperpointkinase10.550.550inotherTrueininFalse
ABL1ABL1_IMATIIMATIDFGloopkinase33.222.083inotherTrueinoutTrue
ABL1ABL1_IMATIIMATIDFGloopkinase35.364.232inotherTrueininFalse
ABL1ABL1_IMATIIMATIcatalytic_looploopkinase32.452.430inotherTrueinoutTrue
ABL1ABL1_IMATIIMATIcatalytic_looploopkinase30.400.300inotherTrueininFalse
ABL1ABL1_IMATIIMATIhingeloopkinase30.470.290inotherTrueinoutTrue
ABL1ABL1_IMATIIMATIhingeloopkinase30.590.550inotherTrueininFalse
ABL1ABL1_IMATIIMATIpocket_scaffoldloopkinase732.130.0012inotherTrueinoutTrue
ABL1ABL1_IMATIIMATIpocket_scaffoldloopkinase732.730.0012inotherTrueininFalse
ABL1ABL1_IMATIIMATIalphaC_Glupointkinase13.443.440inotherTrueinoutTrue
ABL1ABL1_IMATIIMATIalphaC_Glupointkinase11.841.840inotherTrueininFalse
ABL1ABL1_IMATIIMATIcatalytic_Lyspointkinase11.321.320inotherTrueinoutTrue
ABL1ABL1_IMATIIMATIcatalytic_Lyspointkinase11.511.510inotherTrueininFalse
ABL1ABL1_IMATIIMATIgatekeeperpointkinase10.460.460inotherTrueinoutTrue
ABL1ABL1_IMATIIMATIgatekeeperpointkinase10.390.390inotherTrueininFalse

Download CSV

Family coverage and SSE shifts

FamilyStatusDetail
ABL1OK28 motif row(s) across 4 target(s), annotator=kinase
ABLAPNo apo structure configuredNo 'Apo structure:' configured for this family

Overall shift statistics

  • 2 target(s), 28 motif(s) compared
  • Mean Ca RMSD: 1.64 A (median 1.55 A) — largest shift: 5.36 A at ABL1_IMATI / DFG
  • Mean centroid shift: 1.14 A
  • Flagged phi/psi outlier residues: 57
  • Kinase state changes detected: 28 DFG, 7 alphaC

Per-motif Ca RMSD

Loops

Transmembrane

Selectivity and motif shifts

Family x ligand selectivity

Motif x target RMSD

Ligand pose vs experiment

4 target(s) compared against experimental structures in reference/. Atoms are paired by molecular graph, so the symmetry of the ligand is respected rather than being resolved by whichever atom happened to be nearest.

TargetProteinLigandPocketReferenceSite (A)Pose (A)Conformer (A) 
ABL1_IMATI_1N1ABL1IMATI1N11IEP (STI)0.380.560.25
ABL1_DASAT_1N1ABL1DASAT1N12GQG (1N1)0.972.031.73
ABL1_DASATABL1DASATunconstrained2GQG (1N1)1.482.661.92
ABL1_IMATIABL1IMATIunconstrained1IEP (STI)14.6618.392.48

Predicted against experimental

Residue interaction fingerprints

Which residues each ligand touches, per protein. One scale for all of them, so a strong contact looks the same in every plot.

ABL1

The reports as files

The same panels as BoltzMaker wrote them, if you want the whole page in one file.

Landlord narration

4 of 5 target summaries written on-device by the Apple Neural Engine; 1 rendered from the template. Every number here is checked against the figures the analysis computed; a summary stating one it was not given was replaced by the template.

The ABL_KINASE campaign tested the ability to predict the structure of ABL1 and ABLAP, using DASAT and IMATI as ligands. Of 5 predicted targets, 4 were flagged as caution and 1 as discard.

Targets5 predicted, 4 with a ligand
ReceptorsABL1, ABLAP
LigandsDASAT, IMATI
Verdicts4 caution, 1 discard
Confidence3 poorly determined, 2 moderately determined
Flagged5 of 5
Pose validated1 of 4 reproduced the experimental pose

Key findings

  • Of 5 targets, 0 are marked proceed, 4 caution and 1 discard.
  • 0 of 5 targets are well determined; 5 are not.
  • 5 of 5 targets carry at least one flag.
  • 4 targets could be checked against an experimental structure, and 1 reproduced the experimental pose.

Highest predicted potency

  • DASAT on 4_ABL1_DASAT_1N1, predicted pIC50 12.41
  • IMATI on 2_ABL1_IMATI_1N1, predicted pIC50 10.38
  • DASAT on 3_ABL1_DASAT_Unc, predicted pIC50 10.33

Caveats

The campaign was limited by the fact that the confidence of the structure was moderately determined, meaning that it is somewhat reliable but could still be improved.

Per target

TargetVerdictSummaryCaveatWritten by
ABL1_IMATIdiscardThe structure is poorly determined, and this means that someone deciding whether to trust it should be cautious. IMATI is poorly placed relative to the receptor and has a predicted potency of 8.33, ranking it fourth among four ligands testedOverall confidence is below the well-determined threshold.model
ABL1_IMATI_1N1cautionThe structure is moderately determined, meaning it is likely to be accurate, but not absolutely so. This level of certainty may be acceptable for some applications, but not for others where high precision is required. IMATI is a control ligand with low predicted potency, indicating that it is unlikely to bind to ABL1 effectively. Its interaction analysis has not been run, which may affect the accuracy of the prediction.Overall confidence is below the well-determined threshold, meaning the structure is not considered to be reliable enough for most applications.model
ABL1_DASATcautionThe structure is poorly determined: confidence 0.534, ipTM 0.835, ligand ipTM 0.835. DASAT (control) at Unc: predicted pIC50 10.33, binder probability 0.922, ranked 3 of 4 by predicted potency. Interactions: interaction analysis not run. Against 2GQG the prediction close to the experimental pose (pose 2.66 Å).overall confidence is below the well-determined threshold.template
ABL1_DASAT_1N1cautionThe confidence of this structure is moderately determined, meaning that it is somewhat reliable but could still be improved. This suggests that while the structure is close to the experimental pose, it is not yet a definitive model. DASAT is a control ligand with a high binder probability. Its predicted potency is 12.41, placing it first among the ligands tested. However, interaction analysis was not run, so the exact nature of its interactions with the receptor is unknown.Overall confidence is below the well-determined threshold, indicating that the structure may not be as reliable as expected. This caution should be taken when considering the model for further research or practical applications.model
ABLAPcautionThe confidence score for this structure is low. This means it is difficult to trust this structure, and it is likely to be incorrect. Overall confidence is below the well-determined threshold and the ligand is poorly placed relative to the receptormodel