This old version of Proteopedia is provided for student assignments while the new version is undergoing repairs. Content and edits done in this old version of Proteopedia after March 1, 2026 will eventually be lost when it is retired in about June of 2026.
Apply for new accounts at the new Proteopedia. Your logins will work in both the old and new versions.
1ki0
From Proteopedia
| |||||||
| , resolution 1.75Å | |||||||
|---|---|---|---|---|---|---|---|
| Ligands: | |||||||
| Activity: | Plasmin, with EC number 3.4.21.7 | ||||||
| Resources: | FirstGlance, OCA, PDBsum, RCSB | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
The X-ray Structure of Human Angiostatin
Overview
Angiogenesis inhibitors have gained much public attention recently as anti-cancer agents and several are currently in clinical trials, including angiostatin (Phase I, Thomas Jefferson University Hospital, Philadelphia, PA). We report here the bowl-shaped structure of angiostatin kringles 1-3, the first multi-kringle structure to be determined. All three kringle lysine-binding sites contain a bound bicine molecule of crystallization while the former of kringle 2 and kringle 3 are cofacial. Moreover, the separation of the kringle 2 and kringle 3 lysiner binding sites is sufficient to accommodate the alpha-helix of the 30 residue peptide VEK-30 found in the kringle 2/VEK-30 complex. Together the three kringles produce a central cavity suggestive of a unique domain where they may function in concert.
About this Structure
1KI0 is a Single protein structure of sequence from Homo sapiens. Full crystallographic information is available from OCA.
Reference
The X-ray crystallographic structure of the angiogenesis inhibitor angiostatin., Abad MC, Arni RK, Grella DK, Castellino FJ, Tulinsky A, Geiger JH, J Mol Biol. 2002 May 10;318(4):1009-17. PMID:12054798
Page seeded by OCA on Sun Mar 30 21:48:54 2008
