Intramolecular autoinhibition regulates the selectivity of PRPF40A tandem WW domains for proline-rich motifs.

Martínez-Lumbreras S, Träger LK, Mulorz MM, Payr M, Dikaya V, Hipp C, König J, Sattler M, Nat Commun 15(1):3888 (2024) Europe PMC

SASDUJ4 – Tandem of WW domains of Pre-mRNA-processing factor 40 homolog A (PRPF40A) in complex with Splicing factor 1 (SF1) in HEPES buffer

Pre-mRNA-processing factor 40 homolog A
Splicing factor 1
MWexperimental 11 kDa
MWexpected 14 kDa
VPorod 19 nm3
log I(s) 1.04×10-1 1.04×10-2 1.04×10-3 1.04×10-4
Pre-mRNA-processing factor 40 homolog A Splicing factor 1 small angle scattering data  s, nm-1
ln I(s)
Pre-mRNA-processing factor 40 homolog A Splicing factor 1 Guinier plot ln 1.05×10-1 Rg: 1.9 nm 0 (1.9 nm)-2 s2
(sRg)2I(s)/I(0)
Pre-mRNA-processing factor 40 homolog A Splicing factor 1 Kratky plot 1.104 0 3 sRg
p(r)
Pre-mRNA-processing factor 40 homolog A Splicing factor 1 pair distance distribution function Rg: 1.9 nm 0 Dmax: 6 nm

Data validation


There are no models related to this curve.

SAXS data from solutions of the tandem WW domains of PRPF40A in complex with SF1 in 20 mM HEPES, 100 mM NaCl, 1 mM DTT, pH 6.6 were collected using a Rigaku BioSAXS-1000 instrument (Technische Universität München, Garching, Germany) equipped with a Rigaku / HyPix-3000 detector at a sample-detector distance of 0.5 m and at a wavelength of λ = 0.15406 nm (I(s) vs s, where s = 4πsinθ/λ, and 2θ is the scattering angle). One solute concentration of 1.00 mg/ml was measured at 25°C. Eight successive 900 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.

Pre-mRNA-processing factor 40 homolog A (PRPF40A)
Mol. type   Protein
Organism   Homo sapiens
Olig. state   Monomer
Mon. MW   11.4 kDa
 
UniProt   O75400 (141-236)
Sequence   FASTA
 
Splicing factor 1 (SF1)
Mol. type   Protein
Organism   Homo sapiens
Olig. state   Monomer
Mon. MW   2.4 kDa
 
UniProt   Q15637 (575-590)
Sequence   FASTA