1NAY

GPP-Foldon:X-ray structure

Summary for 1NAY

• Entry DOI: 10.2210/pdb1nay/pdb
• Descriptor: Collagen-like peptide (2 entities in total)
• Functional Keywords: collagen assembly, structural protein
• Biological source: Escherichia coli
• Total number of polymer chains: 3
• Total formula weight: 16470.36

Authors

Stetefeld, J. (deposition date: 2002-11-29, release date: 2003-03-25, Last modification date: 2024-03-13)

Primary citation

Stetefeld, J.,Frank, S.,Jenny, M.,Schulthess, T.,Kammerer, R.A.,Boudko, S.,Landwehr, R.,Okuyama, K.,Engel, J.
Collagen Stabilization at Atomic Level. Crystal Structure of Designed (GlyProPro)(10)foldon
Structure, 11:339-346, 2003

PubMed Abstract: In a designed fusion protein the trimeric domain foldon from bacteriophage T4 fibritin was connected to the C terminus of the collagen model peptide (GlyProPro)(10) by a short Gly-Ser linker to facilitate formation of the three-stranded collagen triple helix. Crystal structure analysis at 2.6 A resolution revealed conformational changes within the interface of both domains compared with the structure of the isolated molecules. A striking feature is an angle of 62.5 degrees between the symmetry axis of the foldon trimer and the axis of the triple helix. The melting temperature of (GlyProPro)(10) in the designed fusion protein (GlyProPro)(10)foldon is higher than that of isolated (GlyProPro)(10,) which suggests an entropic stabilization compensating for the destabilization at the interface.

PubMed: 12623021
DOI: 10.1016/S0969-2126(03)00025-X

Experimental method

X-RAY DIFFRACTION (2.6 Å)