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5XGI

Crystal structure of PI3K complex with an inhibitor

Entity
Entity IDChain IDDescriptionTypeChain lengthFormula weightNumber of moleculesDB Name (Accession)Biological sourceDescriptive keywords
1A
(A)
Phosphatidylinositol 4,5-bisphosphate 3-kinase catalytic subunit alpha isoformpolymer1052122644.91UniProt (P42336)
Pfam (PF02192)
Pfam (PF00794)
Pfam (PF00792)
Pfam (PF00613)
Pfam (PF00454)
Homo sapiens (Human)PtdIns-3-kinase subunit alpha,Phosphatidylinositol 4,5-bisphosphate 3-kinase 110 kDa catalytic subunit alpha,p110alpha,Phosphoinositide-3-kinase catalytic alpha polypeptide,Serine/threonine protein kinase PIK3CA
2B
(B)
Phosphatidylinositol 3-kinase regulatory subunit alphapolymer27733495.81UniProt (P27986)
Pfam (PF00017)
Pfam (PF16454)
Homo sapiens (Human)PtdIns-3-kinase regulatory subunit alpha,Phosphatidylinositol 3-kinase 85 kDa regulatory subunit alpha,PtdIns-3-kinase regulatory subunit p85-alpha
3C
(A)
3-azanyl-5-(4-morpholin-4-ylthieno[3,2-d]pyrimidin-2-yl)phenolnon-polymer328.41Chemie (84R)
4D
(A)
HEXAETHYLENE GLYCOLnon-polymer282.31Chemie (P6G)
5E, H, I
(A, B)
SULFATE IONnon-polymer96.13Chemie (SO4)
6F, G
(A)
GLYCEROLnon-polymer92.12Chemie (GOL)
7J, K
(A, B)
waterwater18.0102Chemie (HOH)
Sequence viewer
Contents of the asymmetric unit
PolymersNumber of chains2
Total formula weight156140.7
Non-Polymers*Number of molecules7
Total formula weight1083.1
All*Total formula weight157223.8
*Water molecules are not included.

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PDB entries from 2025-12-17

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