Evolutionary conservation of the structure and function of meiotic Rec114-Mei4 and Mer2 complexes.

Daccache D, De Jonge E, Liloku P, Mechleb K, Haddad M, Corthaut S, Sterckx YG, Volkov AN, Claeys Bouuaert C, Genes Dev 37(11-12):535-553 (2023) Europe PMC

SASDST2 – Saccharomyces pombe Rec15 coiled-coiled with N-terminal SUMO-tag

Meiotic recombination protein rec15
MWexperimental 129 kDa
MWexpected 128 kDa
log I(s) 8.66×10-3 8.66×10-4 8.66×10-5 8.66×10-6
Meiotic recombination protein rec15 small angle scattering data  s, nm-1
ln I(s)
Meiotic recombination protein rec15 Guinier plot ln 8.66×10-3 Rg: 6.9 nm 0 (6.9 nm)-2 s2
(sRg)2I(s)/I(0)
Meiotic recombination protein rec15 Kratky plot 1.104 0 3 sRg
p(r)
Meiotic recombination protein rec15 pair distance distribution function Rg: 7.7 nm 0 Dmax: 26.5 nm

Data validation


Fits and models


log I(s)
 s, nm-1
Meiotic recombination protein rec15 3D-DART model
Meiotic recombination protein rec15 OTHER model
Meiotic recombination protein rec15 OTHER model
Meiotic recombination protein rec15 OTHER model
Meiotic recombination protein rec15 OTHER model
Meiotic recombination protein rec15 OTHER model
Meiotic recombination protein rec15 OTHER model
Meiotic recombination protein rec15 OTHER model
Meiotic recombination protein rec15 OTHER model
Meiotic recombination protein rec15 OTHER model

log I(s)
 s, nm-1

Synchrotron SAXS data from solutions of Saccharomyces pombe Rec15 coiled-coiled with N-terminal SUMO-tag in 25 mM HEPES-NaOH, 500 mM NaCl, 5 mM EDTA, 5% glycerol, 1 mM DTT, pH 7.5 were collected on the SWING beam line at the SOLEIL storage ring (Saint-Aubin, France) using a Eiger 4M detector at a sample-detector distance of 2 m and at a wavelength of λ = 0.099 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 90.00 μl sample at 5.5 mg/ml was injected at a 0.20 ml/min flow rate onto a Shodex KW404-4F column at 15°C. 960 successive 0.990 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.

Meiotic recombination protein rec15 (Rec15)
Mol. type   Protein
Organism   Schizosaccharomyces pombe (strain 972 / ATCC 24843)
Olig. state   Tetramer
Mon. MW   32.1 kDa
 
UniProt   Q09094 (1-161)
Sequence   FASTA