PfKsgA1 functions as a transcription initiation factor and interacts with the N-terminal region of the mitochondrial RNA polymerase of Plasmodium falciparum.

Gupta A, Shrivastava D, Shakya AK, Gupta K, Pratap JV, Habib S, Int J Parasitol (2020) Europe PMC

SASDJU2 – DNA-directed RNA polymerase (RPO41) in complex with rRNA adenine N(6)-methyltransferase (PfKsgA1)

DNA-directed RNA polymerase
rRNA adenine N (6) methyl transferase
MWI(0) 190 kDa
MWexpected 189 kDa
VPorod 393 nm3
log I(s) 4.33×105 4.33×104 4.33×103 4.33×102
DNA-directed RNA polymerase rRNA adenine N (6) methyl transferase small angle scattering data  s, nm-1
ln I(s)
DNA-directed RNA polymerase rRNA adenine N (6) methyl transferase Guinier plot ln 4.33×105 Rg: 5.5 nm 0 (5.5 nm)-2 s2
(sRg)2I(s)/I(0)
DNA-directed RNA polymerase rRNA adenine N (6) methyl transferase Kratky plot 1.104 0 3 sRg
p(r)
DNA-directed RNA polymerase rRNA adenine N (6) methyl transferase pair distance distribution function Rg: 4.8 nm 0 Dmax: 15 nm

Data validation


There are no models related to this curve.

SAXS data from solutions of the RPO4/PfKsgA1 complex in 40 mM Tris, 150 mM NaCl, 5% glycerol, 1 mM DDT, 1 mM EDTA, pH 8 were collected using an Anton Paar SAXSpace instrument at the CSIR-Central Drug Research Institute (Lucknow, India) using a Dectris Mythen 2R1K detector at a sample-detector distance of 0.3 m and at a wavelength of λ = 0.148 nm (I(s) vs s, where s = 4πsinθ/λ, and 2θ is the scattering angle). One solute concentration of 12.00 mg/ml was measured at 10°C. Three successive 1800 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.

CAUTION: Error estimate on the Rg is in excess of 1.5 nm (points 3-16, Guinier approximation).

DNA-directed RNA polymerase (Rpo41)
Mol. type   Protein
Organism   Saccharomyces cerevisiae
Olig. state   Monomer
Mon. MW   149.7 kDa
 
UniProt   P13433 (30-1351)
Sequence   FASTA
 
rRNA adenine N (6) methyl transferase (PfKsgA1)
Mol. type   Protein
Organism   Plasmodium falciparum
Olig. state   Monomer
Mon. MW   39.0 kDa
 
UniProt   Q8ILT8 (43-381)
Sequence   FASTA