Review anchor
Phosphatidylinositol 4,5-bisphosphate 3-kinase catalytic subunit alpha isoform
SINGLE PROTEIN · Mus musculus
As of 2026-09-13
Evidence Snapshot
Phosphatidylinositol 4,5-bisphosphate 3-kinase catalytic subunit alpha isoform
CHEMBL2499
SINGLE PROTEIN
Mus musculus
Identity Layer
Cross-source identity
Keep the review anchor, source IDs, and context contract aligned before reusing this target elsewhere.
This review treats Phosphatidylinositol 4,5-bisphosphate 3-kinase catalytic subunit alpha isoform as ChEMBL target CHEMBL2499, mapped to UniProt P42337. Disease framing currently uses the Open Targets-ready proxy contract.
ChEMBL target ID
CHEMBL2499
Primary anchor for compounds, assays, approvals, and exports
ChEMBL 36 via Core Engine
As of 2026-09-13
www.ebi.ac.uk
UniProt accession
P42337
Phosphatidylinositol 4,5-bisphosphate 3-kinase catalytic subunit alpha isoform
UniProt accession via ChEMBL component mapping
As of 2026-09-13
www.uniprot.org
Disease evidence contract
Open Targets-ready proxy
ChEMBL drug mechanism + indication proxy
ChEMBL drug mechanism + indication proxy
As of 2026-09-13
www.ebi.ac.uk
Reuse the same identifiers in notes, watch rules, exports, and review packs so provenance stays stable across surfaces.
Review-ready Target Rationale
Why Phosphatidylinositol 4,5-bisphosphate 3-kinase catalytic subunit alpha isoform matters
Phosphatidylinositol 4,5-bisphosphate 3-kinase catalytic subunit alpha isoform is reviewed as Phosphatidylinositol 4,5-bisphosphate 3-kinase catalytic subunit alpha isoform (UniProt P42337); the current evidence base includes 1 approved drug, 140 compounds, and 15 assays, with lead potency reaching pChEMBL 9.7.
Protein context
Phosphatidylinositol 4,5-bisphosphate 3-kinase catalytic subunit alpha isoform
Phosphatidylinositol 4,5-bisphosphate 3-kinase catalytic subunit alpha isoform Sequence length is 1068 aa.
Review this target as Phosphatidylinositol 4,5-bisphosphate 3-kinase catalytic subunit alpha isoform, mapped to UniProt P42337. Sequence length is 1068 aa.
Protein source · UniProt accession via ChEMBL component mapping
UniProt P42337
Protein
Disease context
Disease signal
Disease relevance is not yet populated for this evidence card.
This disease block keeps the Open Targets-ready contract explicit while current evidence comes from ChEMBL mechanism and indication mappings.
ChEMBL target recordActivity base
Portfolio and assay base
ChEMBL currently tracks 1 approved drug, 140 compounds, and 15 assays for this target. The dominant activity type is IC50. CHEMBL2331668 is the current potency anchor at pChEMBL 9.7.
Use CHEMBL2331668 as the tractability anchor when discussing potency (pChEMBL 9.7).
Activity source · ChEMBL 36 via Core Engine
1 approved
pChEMBL 9.7
Source Guidance
Start with the right source
Pick the first block or linked source that matches the review question in front of you.
Need the shortest review narrative first?
Review-ready Target Rationale
One-page rationale with as-of-date and attribution
Start with the review rationale when you need to explain why Phosphatidylinositol 4,5-bisphosphate 3-kinase catalytic subunit alpha isoform matters before drilling into raw source blocks.
Jump to Review RationaleNeed stable protein naming or accession mapping?
UniProt Target Context
UniProt accession via ChEMBL component mapping
Go back to the target snapshot when you need the naming and mapping contract behind UniProt P42337, not just the summarized rationale.
Open Protein ContextNeed disease fit or evidence level for program framing?
Disease Relevance & Evidence Level
ChEMBL drug mechanism + indication proxy
Use the target snapshot disease block when you need the disease program and supporting signals, not only the card summary.
Open Disease ContextSnapshot State
No project snapshot selected. Export uses the live evidence card state.
140
Total Compounds
15
Total Assays
1
Approved Drugs
IC50: 72.0, KI: 70.0, EC50: 2.0
Activity Types
pChEMBL Activity Distribution
Top 5 Inhibitors (by pChEMBL)
| Structure | Compound | pChEMBL | Type | Phase |
|---|---|---|---|---|
|
|
No preferred name
CHEMBL2331668
|
9.7 | Ki | — |
|
|
No preferred name
CHEMBL1911117
|
9.7 | IC50 | — |
|
|
No preferred name
CHEMBL2331664
|
9.5 | Ki | — |
|
|
No preferred name
CHEMBL2375957
|
9.5 | Ki | — |
|
|
No preferred name
CHEMBL2376096
|
9.5 | Ki | — |
Source Header