PDB 4A55

X-RAY DIFFRACTION3.50 Å2 chains6 ECOD domains

3D Structure(domains colored, ligands/nucleic acids shown)

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Chain APHOSPHATIDYLINOSITOL-4,5-BISPHOSPHATE 3-KINASE CATALYTIC SUBUNIT ALPHA ISOFORMview chain

5 domains

Chain BPHOSPHATIDYLINOSITOL 3-KINASE REGULATORY SUBUNIT ALPHAview chain

1 domain

#	Chain	Domain ID	Range	Family	Classification
1	A	e4a55A1	A:697-1061	PI3_PI4_kinase	206 → 206.1 → 206.1.1
2	A	e4a55A2	A:107-309	PI3K_rbd	221 → 221.1 → 221.1.1
3	A	e4a55A3	A:487-500,A:526-696	PI3Ka	109 → 109.4 → 109.4.1
4	A	e4a55A4	A:321-486	PI3K_C2	11 → 11.2 → 11.2.1
5	A	e4a55A5	A:5-106	PI3K_p85B	221 → 221.1 → 221.1.1
6	B	e4a55B1	B:448-598	PI3K_P85_iSH2	3755 → 3755.4 → 3755.4.1

ECOD domains (colored by index)Unclassified protein regionsNucleic acids (RNA/DNA)Ligands/cofactors