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.
Fractions of (A) c and (B) y fragments from CAD of (M−6H)6− ions of a 1:1:1:1:1 mixture of five 27 nt RNAs 7, 8, 11, 12 and 13 with 0, 1, 2, 3 and 4 m5C residues, respectively, electrosprayed from 2.5 μM (total RNA concentration) solutions in 1:1 H2O/CH3OH with 30 mM piperidine and 30 mM imidazole as additives; color coding indicates the number of methylations of a fragment: gray = 0, red = 1, violet = 2, blue = 3, green = 4.
