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: A, molecular weight markers; B, crude cell extract of the recombinant E. coli strain XL1-pNCO-HIS6-TM-YCHB; C–E, recombinant catalytic domain of 4-diphosphocytidyl-2-C-methyl-d-erythritol kinase from tomato after chromatography by affinity, anion exchange, and size exclusion, respectively.
