thumb|300px|Structure of the methanofurans
thumb|300px|Structure of the methanofurans
Methanofurans (MFRs) are a family of chemical compounds found in methanogenic archaea. These species feature a 2-aminomethylfuran linked to phenoxy group. At least three different end groups are recognized: R = tricarboxyheptanoyl (methanofuran), glutamyl-glutamyl (methanofuran b), tricarboxy-2-hydroxyheptanoyl (methanofuran c, see picture).
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).