B56δ long-disordered arms form a dynamic PP2A regulation interface coupled with global allostery and Jordan's syndrome mutations.

Wu CG, Balakrishnan VK, Merrill RA, Parihar PS, Konovolov K, Chen YC, Xu Z Wei H, Sundaresan R, Cui Q, Wadzinski BE, Swingle MR, Musiyenko A, Chung WK, Honkanen RE, Suzuki A, Huang X, Strack S, Xing Y, Proc Natl Acad Sci U S A 121(1):e2310727120 (2024) Europe PMC

SASDTW2 – Protein phosphatase 2A (PP2A)-B56δ holoenzyme wildtype

Serine/threonine-protein phosphatase 2A 65 kDa regulatory subunit A alpha isoform
Isoform Delta-1 of Serine/threonine-protein phosphatase 2A 56 kDa regulatory subunit delta isoform (R160H)
Isoform 1 of Serine/threonine-protein phosphatase 2A catalytic subunit alpha isoform
MWexperimental 169 kDa
MWexpected 171 kDa
VPorod 266 nm3
log I(s) 3.32×100 3.32×10-1 3.32×10-2 3.32×10-3
Serine/threonine-protein phosphatase 2A 65 kDa regulatory subunit A alpha isoform Isoform Delta-1 of Serine/threonine-protein phosphatase 2A 56 kDa regulatory subunit delta isoform (R160H) Isoform 1 of Serine/threonine-protein phosphatase 2A catalytic subunit alpha isoform small angle scattering data  s, nm-1
ln I(s)
Serine/threonine-protein phosphatase 2A 65 kDa regulatory subunit A alpha isoform Isoform Delta-1 of Serine/threonine-protein phosphatase 2A 56 kDa regulatory subunit delta isoform (R160H) Isoform 1 of Serine/threonine-protein phosphatase 2A catalytic subunit alpha isoform Guinier plot ln 3.32×100 Rg: 4.0 nm 0 (4.0 nm)-2 s2
(sRg)2I(s)/I(0)
Serine/threonine-protein phosphatase 2A 65 kDa regulatory subunit A alpha isoform Isoform Delta-1 of Serine/threonine-protein phosphatase 2A 56 kDa regulatory subunit delta isoform (R160H) Isoform 1 of Serine/threonine-protein phosphatase 2A catalytic subunit alpha isoform Kratky plot 1.104 0 3 sRg
p(r)
Serine/threonine-protein phosphatase 2A 65 kDa regulatory subunit A alpha isoform Isoform Delta-1 of Serine/threonine-protein phosphatase 2A 56 kDa regulatory subunit delta isoform (R160H) Isoform 1 of Serine/threonine-protein phosphatase 2A catalytic subunit alpha isoform pair distance distribution function Rg: 3.9 nm 0 Dmax: 12 nm

Data validation


There are no models related to this curve.

Synchrotron SAXS data from solutions of PP2A-B56δ holoenzyme wildtype in a buffer (25 mM Tris-HCl pH 8.0, 150 mM NaCl, 50 µM MnCl2) were collected on the BioCAT 18-ID-D beamline at the Advanced Photon Source (APS) (Chicago, IL, USA) using a Pilatus3 X 1M detector (Dectris) at a sample-detector distance of ~3.7 m and at a wavelength of λ = 0.1033 nm (I(s) vs s, where s = 4πsinθ/λ, and 2θ is the scattering angle). In-line size-exclusion chromatography (SEC)-SAXS was employed. The SEC parameters were as follows: A 550 μl sample at 1.5 mg/ml was injected at a 0.70 ml/min flow rate onto a Superdex 200 10/300 column (GE healthcare) at 22°C. 2000 successive 1 second frames were collected. The data were normalized to the intensity of the transmitted beam and radially averaged; the scattering of the solvent-blank was subtracted.

Serine/threonine-protein phosphatase 2A 65 kDa regulatory subunit A alpha isoform (Scaffold A subunit)
Mol. type   Protein
Organism   Homo sapiens
Olig. state   Monomer
Mon. MW   65.5 kDa
 
UniProt   P30153 (1-589)
Sequence   FASTA
 
Isoform Delta-1 of Serine/threonine-protein phosphatase 2A 56 kDa regulatory subunit delta isoform (R160H) (regulatory B subunit)
Mol. type   Protein
Organism   Homo sapiens
Olig. state   Monomer
Mon. MW   70.1 kDa
 
UniProt   Q14738-1 (1-602)
Sequence   FASTA
 
Isoform 1 of Serine/threonine-protein phosphatase 2A catalytic subunit alpha isoform (Catalytic C subunit)
Mol. type   Protein
Organism   Homo sapiens
Olig. state   Monomer
Mon. MW   35.9 kDa
 
UniProt   P67775-1 (1-309)
Sequence   FASTA