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.
1bjf
From Proteopedia
|
CRYSTAL STRUCTURE OF RECOMBINANT BOVINE NEUROCALCIN DELTA AT 2.4 ANGSTROMS
Overview
The crystal structure of calcium-bound unmyristoylated bovine neurocalcin from Escherichia coli has been determined at 2.4 A resolution. The three-dimensional structure reveals a highly compact structure consisting of: (i) two pairs of calcium-binding EF-hands (EF1-EF2 and EF3-EF4); (ii) a calcium ion bound at EF2, EF3 and EF4 sites; and (iii) an EF1-hand that is disabled from calcium-binding due to a Cys-Pro sequence in the Ca2+-binding loop. The crystal structure of neurocalcin resembles photoreceptor recoverin in overall topology, however its EF2- and EF4-hands differ. Recently, neurocalcin in the calcium-bound state has been shown to stimulate mammalian rod outer segment membrane guanylate cyclase. A possible site for cyclase activity based on the three-dimensional structure is discussed.
About this Structure
1BJF is a Single protein structure of sequence from Escherichia coli with as ligand. Full crystallographic information is available from OCA.
Reference
Crystal structure of recombinant bovine neurocalcin., Vijay-Kumar S, Kumar VD, Nat Struct Biol. 1999 Jan;6(1):80-8. PMID:9886296
Page seeded by OCA on Thu Feb 21 11:55:56 2008
