Figure 1From: Structural and evolutionary bioinformatics of the SPOUT superfamily of methyltransferasesConserved topology of the common core and the most typical architecture of the active site in SPOUT proteins, exemplified by a 'minimal' putative MTase SAV0024 (1vh0), RlmB (1gz0), and TrmD (1p9p). Helices are shown as circles, strands are shown as triangles. Universally conserved elements are shown in grey, variable elements are in white.Back to article page