The plant nucleoplasmin AtFKBP43 needs its extended arms for histone interaction.

Singh AK, Saharan K, Baral S, Vasudevan D, Biochim Biophys Acta Gene Regul Mech 1865(7):194872 (2022) Europe PMC

SASDNS7 – Peptidyl-prolyl cis-trans isomerase AtFKBP43 (1-136) -H3/H4 histone oligomer complex

Peptidyl-prolyl cis-trans isomerase FKBP43
Histone H3.1
Histone H4
MWexperimental 137 kDa
MWexpected 134 kDa
VPorod 226 nm3
log I(s) 3.92×101 3.92×100 3.92×10-1 3.92×10-2
Peptidyl-prolyl cis-trans isomerase FKBP43 Histone H3.1 Histone H4 small angle scattering data  s, nm-1
ln I(s)
Peptidyl-prolyl cis-trans isomerase FKBP43 Histone H3.1 Histone H4 Guinier plot ln 3.93×101 Rg: 4.4 nm 0 (4.4 nm)-2 s2
(sRg)2I(s)/I(0)
Peptidyl-prolyl cis-trans isomerase FKBP43 Histone H3.1 Histone H4 Kratky plot 1.104 0 3 sRg
p(r)
Peptidyl-prolyl cis-trans isomerase FKBP43 Histone H3.1 Histone H4 pair distance distribution function Rg: 4.3 nm 0 Dmax: 14.1 nm

Data validation


Fits and models


log I(s)
 s, nm-1
Peptidyl-prolyl cis-trans isomerase FKBP43 Histone H3.1 Histone H4 ALPHAFOLD model

log I(s)
 s, nm-1
Peptidyl-prolyl cis-trans isomerase FKBP43 Histone H3.1 Histone H4 DAMMIF model
Peptidyl-prolyl cis-trans isomerase FKBP43 Histone H3.1 Histone H4 DAMFILT model

Synchrotron SAXS data from solutions of the AtFKBP43 (1-136) -H3/H4 histone oligomer complex in 20 mM Tris, 300 mM NaCl, 1 mM β-mercaptoethanol, pH 7.5 were collected on the BM29 beam line at the ESRF (Grenoble, France) using a Pilatus3 2M detector at a sample-detector distance of 2.9 m and at a wavelength of λ = 0.09794 nm (I(s) vs s, where s = 4πsinθ/λ, and 2θ is the scattering angle). One solute concentration of 0.50 mg/ml was measured at 20°C. The data were normalized to the intensity of the transmitted beam and radially averaged; the scattering of the solvent-blank was subtracted.

The bead models displayed in this entry show an individual DAMMIF model shape reconstruction and associated fit, in addition to the volume/bead occupancy-corrected averaged representation of the protein calculated from the spatial alignment of an individual model cohort consisting of several individual bead models (DAMFILT).

Peptidyl-prolyl cis-trans isomerase FKBP43 (FKBP43)
Mol. type   Protein
Organism   Arabidopsis thaliana
Olig. state   Pentamer
Mon. MW   16.1 kDa
 
UniProt   F4J9Q6 (1-136)
Sequence   FASTA
 
Histone H3.1 (Histone H3)
Mol. type   Protein
Organism   Homo sapiens
Olig. state   Dimer
Mon. MW   15.4 kDa
 
UniProt   P68431 (1-136)
Sequence   FASTA
 
Histone H4 (Histone H4)
Mol. type   Protein
Organism   Homo sapiens
Olig. state   Dimer
Mon. MW   11.4 kDa
 
UniProt   P62805 (1-103)
Sequence   FASTA