Structure of a putative immature form of a Rieske-type iron-sulfur protein in complex with zinc chloride.

Tsutsumi E, Niwa S, Takeda R, Sakamoto N, Okatsu K, Fukai S, Ago H, Nagao S, Sekiguchi H, Takeda K, Commun Chem 6(1):190 (2023) Europe PMC

SASDSV5 – Dimeric structure of Zn-TtPetA (Ubiquinol-cytochrome c reductase)

Ubiquinol-cytochrome c reductase iron-sulfur subunit
MWexperimental 30 kDa
MWexpected 33 kDa
VPorod 38 nm3
log I(s) 1.97×10-2 1.97×10-3 1.97×10-4 1.97×10-5
Ubiquinol-cytochrome c reductase iron-sulfur subunit small angle scattering data  s, nm-1
ln I(s)
Ubiquinol-cytochrome c reductase iron-sulfur subunit Guinier plot ln 1.98×10-2 Rg: 2.3 nm 0 (2.3 nm)-2 s2
(sRg)2I(s)/I(0)
Ubiquinol-cytochrome c reductase iron-sulfur subunit Kratky plot 1.104 0 3 sRg
p(r)
Ubiquinol-cytochrome c reductase iron-sulfur subunit pair distance distribution function Rg: 2.3 nm 0 Dmax: 7.8 nm

Data validation


Fits and models


log I(s)
 s, nm-1
Ubiquinol-cytochrome c reductase iron-sulfur subunit OTHER model

Synchrotron SAXS data from solutions of Zn-TtPetA in 10 mM Tris-HCl pH 7.6, 150 mM NaCl, 5% glycerol, were collected on the BL38B1 beam line at SPring-8 (Hyogo prefecture, Japan) using a PILATUS 3 S 2M detector at a sample-detector distance of 2.6 m and at a wavelength of λ = 0.1 nm (I(s) vs s, where s = 4πsinθ/λ, and 2θ is the scattering angle). In-line size-exclusion chromatography (SEC) SAS was employed. The SEC parameters were as follows: A 200.00 μl sample at 7 mg/ml was injected at a 0.30 ml/min flow rate onto a Cytiva Superdex 200 Increase 10/300 column at 20°C. 32 successive 3 second frames were collected through the SEC sample elution peak and used for averaging. The data were normalized to the intensity of the transmitted beam and radially averaged; the scattering of the solvent-blank was subtracted.

Storage temperature = UNKNOWN

Ubiquinol-cytochrome c reductase iron-sulfur subunit (TtPetA)
Mol. type   Protein
Organism   Thermochromatium tepidum
Olig. state   Dimer
Mon. MW   16.4 kDa
 
UniProt   D1MZ11 (49-197)
Sequence   FASTA