No advantage for the E4 isolate compared to the knockout strain was observed in media containing either hemin or holo-transferrin as the main iron source (Figure 2C D).
A nano-sized non-noble metal catalyst containing hemin supported on carbon black was synthesized for the oxygen reduction reaction (ORR).
Cells were replenished with fresh medium containing hemin every 48 hours for 1 7 days, and harvested for analysis.
Primary incubation of chromatographic fraction with acetate buffer containing hemin, followed by the addition of maltose, did not interfere in the efficiency to sustain Hz formation (Figure 2).
Epimastigote forms of T. cruzi were grown in 3.7% brain heart infusion medium (BHI), containing hemin and folic acid and supplemented with 10% heat-inactivated fetal bovine serum, at 28°C for 4 days to reach late-log phase growth.
A Δ hrrA mutant of C. glutamicum showed a strong growth defect on agar plates containing hemin as sole iron source, suggesting that also the C. glutamicum HrrSA system plays a role in heme metabolism.
with 85% N2, 5% H2, and 10% CO2 for 3 to 5 days and then inoculated into Schaedler Broth (Difco Laboratories) containing hemin and menadione for 24 hours, according to the previous protocol with some modifications [ 13].
These strains were cultivated on tryptic soy agar (Difco, Sparks, MD, USA) media containing 10% sheep blood, 0.1% hemin (Sigma, St . Louis MO, USA) and vitamin K1 (Sigma, USA) in a Bactron IV chamber (SHELLAB, Cornelius, OR, USA) at 37°C, 5% CO2, 10% H2, and 85% N2.
At 4 h post-transfection, the transfection media containing nanocomplexes were replaced with FBS-containing media.
For E2-containing media, E2 was added to standard media to create a media containing 1 μM E2.
