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This is a preview of subscription content, access via your institution Access options Access Nature and 54 other Nature Portfolio journals Get Nature+, our best-value online-access subscription 27,99 / 30 days cancel any time Subscribe to this journal Receive 12 print issues and online access 251,40 per year only 20,95 per issue Rent or buy this article Prices vary by article type from$1.95 to$39.95 Prices may be subject to local taxes which are calculated during checkout Subjects References Parker, J
These are the FeS-type (type I) reaction center found in green sulfur bacteria and the quinone-type (Q-type or type II) reaction center of purple sulfur bacteria (Blankenship, 2010)
In addition, MT-I and MT-II are available as research peptides for subcutaneous administration
He also takes magnesium L-threonate from Magtein, which he says is the only company licensed to make L-threoante
