Structure of PDB 4xz4 Chain A

Receptor sequence

>4xz4A (length=843) Species: 9606 (Homo sapiens)

SEESQAFQRQLTALIGYDVTDVSNVHDDELEFTRRGLVTPRMAEVASRDP
KLYAMHPWVTSKPLPEYLWKKIANNCIFIVIHRSTTSQTIKVSPDDTPGA
ILQSFFTKMAKQDFVLRVCGRDEYLVGETPIKNFQWVRHCLKNGEEIHVV
LDTPPDPALDEVRKEEWCDRKFRVKIRGIDIPVLPRNTDLTVFVEANIQH
GQQVLCQRRTSPKPFTEEVLWNVWLEFSIKIKDLPKGALLNLQIYCRLLY
YVNLLLIDHRFLLRRGEYVLHMWQISGFNADKLTSATNPDKENSMSISIL
LDNHPIARAEMPNQLRKQLEAIIATDPLNPLTAEDKELLWHFRYESLKHP
KAYPKLFSSVKWGQQEIVAKTYQLLARREVWDQSALDVGLTMQLLDCNFS
DENVRAIAVQKLESLEDDDVLHYLLQLVQAVKFEPYHDSALARFLLKRGL
RNKRIGHFLFWFLRSEIAQSRHYQQRFAVILEAYLRGCGTAMLHDFTQQV
QVIEMLQKVTLDIKSLSAEKYDVSSQVISQLKQKLENLQNSQLPESFRVP
YDPGLKAGALAIEKCKVMASKKKPLWLEFKCADPTALSNETIGIIFKHGD
DLRQDMLILQILRIMESIWETESLDLCLLPYGCISTGDKIGMIEIVKDAT
TIAKIQQSTVGNTGAFKDEVLNHWLKEKSPTEEKFQAAVERFVYSCAGYC
VATFVLGIGDRHNDNIMITETGNLFHIDFGHERVPFVLTPDFLFVMGTSG
KKTSPHFQKFQDICVKAYLALRHHTNLLIILFSMMLMTGMPQLTSKEDIE
YIRDALTVGKNEEDAKKYFLDQIEVCRDKGWTVQFNWFLHLVL

3D structure

• PDB: 4xz4 Structure of PI3K gamma in complex with an inhibitor
• Chain: A
• Resolution: 2.6 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	456	A	W812 I831 I879 I881 V882 A885 D964	W576 I595 I643 I645 V646 A649 D728	BindingDB: Ki=0.017000nM

Gene Ontology

Molecular Function

• GO:0016301 kinase activity

Biological Process

• GO:0046854 phosphatidylinositol phosphate biosynthetic process

External links

• PDB: RCSB:4xz4, PDBe:4xz4, PDBj:4xz4
• PDBsum: 4xz4
• UniProt: P48736|PK3CG_HUMAN Phosphatidylinositol 4,5-bisphosphate 3-kinase catalytic subunit gamma isoform (Gene Name=PIK3CG)