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.
Polyamine synthesis and expression (X background signal) of enzymes involved. Spermidine is the condensation product of putrescine (originating from arginine metabolism and decarboxylated SAM). Then spermine will be formed from spermidine after condensation with decarboxylated SAM. The background signal (probe pair threshold ) value is 50. MicroArrays HG-U133,plus2. (For experimental procedure see [73]
