The occcurence of similar topologies among unrelated proteins is an emerging theme in structural biology. Here we report that the T-knot scaffold, a disulfide-reinforced structural motif shared by knottins and EGF-like proteins, is also present in leech antihemostatic proteins. Our finding emphasizes the versatile nature of this small structural motif, representing a compact structural unit suitable for the diverse biological functions performed by knottins, EGF-like proteins and leech antihemostatic proteins.
|Number of pages||3|
|Publication status||Published - 1998|
- EGF-like proteins
- T-knot scaffold
ASJC Scopus subject areas