Biological Assembly 1  

 3D View: Structure | Electron Density | Ligand Interaction

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Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 2-mer - AB 

Biological assembly 1 assigned by authors and generated by PISA (software)

Biological Assembly Evidence: gel filtration

Macromolecule Content

• Total Structure Weight: 162022.02 
• Atom Count: 10493 
• Residue Count: 1375 
• Unique protein chains: 2

6NCT

Structure of p110alpha/niSH2 - vector data collection

• DOI: 10.2210/pdb6NCT/pdb

• Classification: TRANSFERASE
• Organism(s): Homo sapiens
• Expression System: Spodoptera frugiperda


• Deposited: 2018-12-12 Released: 2019-02-06 
• Deposition Author(s): Miller, M.S., Maheshwari, S., Amzel, L.M., Gabelli, S.B.
• Funding Organization(s): National Institutes of Health/National Cancer Institute 

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 3.35 Å
• R-Value Free: 0.271 
• R-Value Work: 0.199 

Literature

Getting the most out of your crystals: Data collection at the new high-flux, microfocus MX beamlines at NSLS-II

Miller, M.S., Maheshwari, S., Shi, W., Gao, Y., Chu, N., Soares, A.S., Cole, P.A., Amzel, L.M., Fuchs, M.R., Jakoncic, J., Gabelli, S.B.

(2019) Molecules 24(3): 496

Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details
Phosphatidylinositol 4,5-bisphosphate 3-kinase catalytic subunit alpha isoform	A	1096	Homo sapiens	Mutation(s): 0  Gene Names: PIK3CA EC: 2.7.1.153
Find proteins for P42336 (Homo sapiens) Go to Gene View: PIK3CA Go to UniProtKB:  P42336

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details
Phosphatidylinositol 3-kinase regulatory subunit alpha	B	279	Homo sapiens	Mutation(s): 0  Gene Names: PIK3R1 (GRB1)
Find proteins for P27986 (Homo sapiens) Go to Gene View: PIK3R1 Go to UniProtKB:  P27986

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram & Interactions
SO4	A	SULFATE ION O4 S QAOWNCQODCNURD-UHFFFAOYSA-L
144	A, B	TRIS-HYDROXYMETHYL-METHYL-AMMONIUM C4 H12 N O3 DRDCQJADRSJFFD-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 3.35 Å
• R-Value Free: 0.271 
• R-Value Work: 0.199 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length (Å)	Angle (°)
a = 115.355	α = 90.00
b = 117.724	β = 90.00
c = 151.331	γ = 90.00

Software Package:

Software Name	Purpose
XDS	data reduction
PDB_EXTRACT	data extraction
XSCALE	data scaling
REFMAC	refinement
MOLREP	phasing

Structure Validation

Entry History & Funding Information

Deposition Data

• Deposited Date: 2018-12-12 
• Released Date: 2019-02-06 
• Deposition Author(s): Miller, M.S., Maheshwari, S., Amzel, L.M., Gabelli, S.B.

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Funding Organization	Location	Grant Number
National Institutes of Health/National Cancer Institute	United States	CA062924

Revision History 

• Version 1.0: 2019-02-06
  Type: Initial release