1. b.117.1 Obg GTP-binding protein N-terminal domain Obg-fold this fold is formed by three glycine-rich regions inserted into a small 8-stranded beta-sandwich ! these regions form six left-handed collagen-like helices packed and H-bonded together 1lnz d1lnza1 A:1-19,34-49,62-73,75-90,112-126 1udx d1udxa1 A:4-19,34-50,62-72,74-90,110-125 1lnz d1lnzb1 B:2-19,34-50,62-73,75-91,112-126