AF_AFP42336F1

COMPUTED STRUCTURE MODEL OF PHOSPHATIDYLINOSITOL 4,5-BISPHOSPHATE 3-KINASE CATALYTIC SUBUNIT ALPHA ISOFORM

There are no experimental data to verify the accuracy of this computed structure model. See Model Confidence metrics below for all regions of the polypeptide chain

• AlphaFold DB: P42336
• Released in AlphaFold DB:  2021-07-01
  Last Modified in AlphaFold DB: 2025-08-01
• Organism(s): Homo sapiens
• UniProtKB: P42336

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Model Confidence 

• pLDDT (global): 92.36
• pLDDT (local):

Model Confidence 

•   Very high (pLDDT > 90)    
•   Confident (70 < pLDDT ≤ 90)    
•   Low (50 < pLDDT ≤ 70)    
•   Very low (pLDDT ≤ 50)    

Computed Structure Models provide per-residue confidence score (pLDDT) between 0 and 100. Some regions below 50 pLDDT may be unstructured in isolation.

Assembly  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Macromolecule Content 

• Total Structure Weight: 124.45 kDa 
• Atom Count: 8,722 
• Modeled Residue Count: 1,068 
• Deposited Residue Count: 1,068 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Phosphatidylinositol 4,5-bisphosphate 3-kinase catalytic subunit alpha isoform	A	1,068	Homo sapiens	Mutation(s): 0  Gene Names: PIK3CA EC: 2.7.1.137 (UniProt), 2.7.11.1 (UniProt), 2.7.1.153 (UniProt)
UniProt & NIH Common Fund Data Resources
Find proteins for P42336 (Homo sapiens) Explore P42336  Go to UniProtKB:  P42336
PHAROS:  P42336 GTEx:  ENSG00000121879