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.
Demonstration of guided cobalamin biosynthesis. HPLC chromatograms of (a) authentic CN-Cbl standard (5 mg l−1 dissolved in water); (b) cyano-phenolyl and cyano-p-cresolyl cobamides extracted from 1 l of Sporomusa sp. strain KB-1 culture grown autotrophically with H2/CO2; and (c) cyanocobalamin extracted from 1 litre of Sporomusa sp. KB-1 culture grown autotrophically with H2/CO2 and the addition of 10 µM DMB. mAU = milliabsorbance units. (Online version in colour.)
