Interaction between the C-terminal region of human myelin basic protein and calmodulin: analysis of complex formation and solution structure.

Majava V, Petoukhov MV, Hayashi N, Pirilä P, Svergun DI, Kursula P, BMC Struct Biol 8:10 (2008) Europe PMC

SASDAN4 – Calmodulin:peptide complex

Calmodulin
C-terminal region of human myelin basic protein
MWexperimental 20 kDa
MWexpected 19 kDa
VPorod 36 nm3
log I(s) 1.07×102 1.07×101 1.07×100 1.07×10-1
Calmodulin C-terminal region of human myelin basic protein small angle scattering data  s, nm-1
ln I(s)
Calmodulin C-terminal region of human myelin basic protein Guinier plot ln 1.08×102 Rg: 2.1 nm 0 (2.1 nm)-2 s2
(sRg)2I(s)/I(0)
Calmodulin C-terminal region of human myelin basic protein Kratky plot 1.104 0 3 sRg
p(r)
Calmodulin C-terminal region of human myelin basic protein pair distance distribution function 0 Dmax: 7 nm

Data validation


Fits and models


log I(s)
 s, nm-1
Calmodulin C-terminal region of human myelin basic protein SASREF model

Synchrotron SAXS data from solutions of Calmodulin:peptide complex in 25 mM Tris75 200 mM NaCl, pH 7.5 were collected on the EMBL X33 beam line at the DORIS III, DESY storage ring (Hamburg, Germany) using a MAR 345 Image Plate detector (I(s) vs s, where s = 4πsinθ/λ, and 2θ is the scattering angle). Solute concentrations ranging between 5.3 and 20 mg/ml were measured . The data were normalized to the intensity of the transmitted beam and radially averaged; the scattering of the solvent-blank was subtracted. The low angle data collected at lower concentration were merged with the highest concentration high angle data to yield the final composite scattering curve.

Wavelength = UNKNOWN. Cell temperature = UNKNOWN. Storage temperature = UNKNOWN. Sample detector distance = UNKNOWN. X-ray Exposure time = UNKNOWN. Number of frames = UNKNOWN

Tags: X33
Calmodulin
Mol. type   Protein
Organism   Homo sapiens
Olig. state   Monomer
Mon. MW   16.8 kDa
 
UniProt   P62158
Sequence   FASTA
 
C-terminal region of human myelin basic protein (peptide)
Mol. type   Protein
Organism   Homo sapiens
Olig. state   Monomer
Mon. MW   2 kDa
Sequence   FASTA