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.
1jxs
From Proteopedia
|
Solution Structure of the DNA-Binding Domain of Interleukin Enhancer Binding Factor
Overview
Interleukin enhancer binding factor (ILF) binds to the interleukin-2, (IL-2) promoter and regulates IL-2 gene expression. In this study, the 3D, structure of the DNA-binding domain of ILF was determined by, multidimensional NMR spectroscopy. NMR structure analysis revealed that, the DNA-binding domain of ILF is a new member of the winged helix/forkhead, family, and that its wing 2 contains an extra alpha-helix. This is the, first study to report the presence of a C-terminal alpha-helix in place of, a typical wing 2 in a member of this family. This structural difference, may be responsible for the different DNA-binding specificity of ILF, compared to other winged helix/forkhead proteins. Our deletion studies of, the fragments of ILF also suggest that the C-terminal region plays a, regulatory role in DNA binding.
About this Structure
1JXS is a Single protein structure of sequence from Homo sapiens. Full crystallographic information is available from OCA.
Reference
Solution structure of the DNA-binding domain of interleukin enhancer binding factor 1 (FOXK1a)., Liu PP, Chen YC, Li C, Hsieh YH, Chen SW, Chen SH, Jeng WY, Chuang WJ, Proteins. 2002 Dec 1;49(4):543-53. PMID:12402362
Page seeded by OCA on Mon Nov 12 17:45:35 2007
