Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
SDS/PAGE. Lanes: 1, molecular mass markers; 2, crude cell extract of the recombinant E. coli strain XL1-pQEygbB; 3, flow-through fraction of Ni2+-chelating Sepharose chromatography; 4, eluted fraction of YgbB after Ni2+-chelating Sepharose chromatography.
