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.
1iua
From Proteopedia
| |||||||
| , resolution 0.80Å | |||||||
|---|---|---|---|---|---|---|---|
| Ligands: | and | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
Ultra-high resolution structure of HiPIP from Thermochromatium tepidum
Overview
Crystals of the high-potential iron-sulfur protein (HiPIP) from Thermochromatium tepidum diffract X-rays to 0.80 A using synchrotron radiation at 100 K. The crystal structure of this HiPIP was refined at this ultrahigh resolution with anisotropic temperature factors for all atoms to conventional crystallographic R factors of 0.092 and 0.101 for F(o) > 4sigma(F(o)) and all reflections, respectively. The present structure provides a more precise picture than the previous 1.5 A structure and allows location of the positions of most H atoms. The structure revealed a partly hydrophobic cavity near the main hydrophobic area and a much larger inter-cluster approach distance (23.454 A, the c constant of the unit cell) in the crystal packing than other types of HiPIPs. The structural features involved in the electron-transfer reaction of HiPIP are discussed.
About this Structure
1IUA is a Single protein structure of sequence from Thermochromatium tepidum. Full crystallographic information is available from OCA.
Reference
Ultrahigh-resolution structure of high-potential iron-sulfur protein from Thermochromatium tepidum., Liu L, Nogi T, Kobayashi M, Nozawa T, Miki K, Acta Crystallogr D Biol Crystallogr. 2002 Jul;58(Pt 7):1085-91. Epub 2002, Jun 20. PMID:12077426
Page seeded by OCA on Thu Mar 20 11:54:59 2008
