Structure of PDB 3zw3 Chain A

Receptor sequence

>3zw3A (length=831) Species: 9606 (Homo sapiens)

SEESQAFQRQLTALIGYDVTDVSNVHDDELEFTRRGLVTPRMAEVASRDP
KLYAMHPWVTSKPLPEYLWKKIANNCIFIVIHRSTTSQTIKVSPDDTPGA
ILQSFFTKMAKDFVLRVCGRDEYLVGETPIKNFQWVRHCLKNGEEIHVVL
DTPPDPALDEVRKEECDRKFRVKIRGIDIPVLLTVFVEANIQHGQQVLCQ
RRTSPKPFTEEVLWNVWLEFSIKIKDLPKGALLNLQIYCLLYYVNLLLID
HRFLLRRGEYVLHMWQISGFNADKLTSATNPDKENSMSISILLDNHPIAR
AEMPNQLRKQLEAIIATDPLNPLTAEDKELLWHFRYESLKHPKAYPKLFS
SVKWGQQEIVAKTYQLLARREVWDQSALDVGLTMQLLDCNFSDENVRAIA
VQKLESLEDDDVLHYLLQLVQAVKFEPYHDSALARFLLKRGLRNKRIGHF
LFWFLRSEIAQSRHYQQRFAVILEAYLRGCGTAMLHDFTQQVQVIEMLQK
VTLDIKSLSSSQVISQLKQKLENLQNSQLPESFRVPYDPGLKAGALAIEK
CKVMASKKKPLWLEFKCADPTALSNETIGIIFKHGDDLRQDMLILQILRI
MESIWETESLDLCLLPYGCISTGDKIGMIEIVKDATTIAKIQQSTVGNTG
AFKDEVLNHWLKEKSPTEEKFQAAVERFVYSCAGYCVATFVLGIGDRHND
NIMITETGNLFHIDFGHILGNYRVPFVLTPDFLFVMGTSGKKTSPHFQKF
QDICVKAYLALRHHTNLLIILFSMMLMTGMPQLTSKEDIEYIRDALTVGK
NEEDAKKYFLDQIEVCRDKGWTVQFNWFLHL

3D structure

• PDB: 3zw3 Fragment based discovery of a novel and selective PI3 kinase inhibitor.
• Chain: A
• Resolution: 2.8 Å

Enzymatic activity

• Enzyme Commision number: 2.7.11.1: non-specific serine/threonine protein kinase.
  2.7.1.137: phosphatidylinositol 3-kinase.
  2.7.1.153: phosphatidylinositol-4,5-bisphosphate 3-kinase.
  2.7.1.154: phosphatidylinositol-4-phosphate 3-kinase.

Interaction with ligand

Site #	Ligand	Ligand chain	Binding residues on receptor (original residue number in PDB)	Binding residues on receptor (residue number reindexed from 1)	Binding affinity
BS01	ZW3	A	W812 K833 I879 V882 A885 M953 I963 D964	W562 K583 I629 V632 A635 M703 I713 D714	PDBbind-CN: -logKd/Ki=7.47,IC50=34nM

Gene Ontology

Molecular Function

• GO:0016301 kinase activity

Biological Process

• GO:0046854 phosphatidylinositol phosphate biosynthetic process

External links

• PDB: RCSB:3zw3, PDBe:3zw3, PDBj:3zw3
• PDBsum: 3zw3
• PubMed: 21925880
• UniProt: P48736|PK3CG_HUMAN Phosphatidylinositol 4,5-bisphosphate 3-kinase catalytic subunit gamma isoform (Gene Name=PIK3CG)