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 analysis of samples from each purification step. Lane 1, molecular mass standards; lane 2, inclusion body fraction after washing with double-distilled H2O; lane 3, supernatant after denaturation and centrifugation; lane 4, refolded leptin after dialysis; lane 5, sample after anion-exchange chromatography.
