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.
HBx protein expression in transfected HepG2 cells as assayed by UltraSensitive™ immunocytochemistry (SP×200). The cells transfected with OPTI-MEM medium (A) and blank vector (C) showed no expression of HBx protein, while some cells transfected with pCMV-X vector (B) showed visible brown positive signals.
