Variation of the apparent lnr
2 values versus the concentration c0.52 of horse myoglobin solutions. SAXS experiments of horse myoglobin solutions were performed at the 1W2A SAXS station at Beijing Synchrotron Radiation Facility (BSRF, Beijing, China) with the incident X‐ray wavelength of 0.154 nm and a 1MF PILATUS (Dectris, Baden, Switzerland) as detector. r
2 is labeled at which P(r)=0, c is the concentration of samples.