关键词: AlphaFold bradykinin cryo-EM kinin kininogen proteins structure

Mesh : Animals Bradykinin / metabolism Cryoelectron Microscopy / methods Humans Kallikreins / blood Kininogen, High-Molecular-Weight / genetics metabolism physiology Kininogens / genetics metabolism physiology Structure-Activity Relationship

来  源:   DOI:10.3390/ijms222413370

Abstract:
Kininogens are multidomain glycoproteins found in the blood of most vertebrates. High molecular weight kininogen demonstrate both carrier and co-factor activity as part of the intrinsic pathway of coagulation, leading to thrombin generation. Kininogens are the source of the vasoactive nonapeptide bradykinin. To date, attempts to crystallize kininogen have failed, and very little is known about the shape of kininogen at an atomic level. New advancements in the field of cryo-electron microscopy (cryoEM) have enabled researchers to crack the structure of proteins that has been refractory to traditional crystallography techniques. High molecular weight kininogen is a good candidate for structural investigation by cryoEM. The goal of this review is to summarize the findings of kininogen structural studies.
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