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Andrew Rebeyka

Please do NOT make changes to this Sandbox until after April 23, 2010. Sandboxes 151-200 are reserved until then for use by the Chemistry 307 class at UNBC taught by Prof. Andrea Gorrell.

Contents 1 C-JUN 1.1 Introduction 1.2 Structural Overview 1.3 Protein Function 1.4 OTHER 2 References

C-JUN

The C-Jun protein belongs the member of the basic region leucine zippere (bZIP) family of transcription factors. All these factors bind to DNA as either homo or heterodimers.(c). This union of the two identical molecular units is mediated by each of their leucine zipper domains and subsequently a prerequisite to the binding of their related DNA enhancer elements ^[1]. This prerequisitie is needed as dimerization enables the alpha helical DNA binding domains to be inserted into adjacent grooves of the dyad symmetrical DNA recognition site. this therefore affects the activity of how these proteins are regulated by causing these protein to protein interactions between the leucine zipper domains in addition to the interactions between protein and DNA ^[2] (c).

Introduction

C-Jun binds to specific DNA sites either in the homodimer or deterodimer forms with the aid of C-Fos protein (c). C-Jun is a transcriptional activator.(c). C-jun, with the aid of C-Fos represents a crucial union between normal and uncontrolled cell growth as their combined role in the transduction of afferent growth signals the response of specific genes. (c).

Structural Overview

spinqualitylabelsall models 1JUN Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image

This protein is a dimer that is completely symmetrical (a). It is comprised of coiled coil of two alpha helices (a).

Protein Function

OTHER

References

1. ↑ Junius FK, O'Donoghue SI, Nilges M, Weiss AS, King GF. High resolution NMR solution structure of the leucine zipper domain of the c-Jun homodimer. J Biol Chem. 1996 Jun 7;271(23):13663-7. PMID:8662824
2. ↑ XXX

Junius, F.K., O'Donoghue, Se an I., Niges, M., Weiss, A.S., King, G.F. 1996. High Resolution NMR Solution Structure of Lecuine Zipper Domain of the c-Jun Homodimer. January 4th

A Junius, F.K., Mackay, J.P., Bubb, W.A., Jensen, S.A., Weiss, A.S., King, G.F.  2006.  Nuclear Magnetic Resonance Characterization of the Jun Leucine Zipper Domain:  Unusual Properties of Coiled-Coil Interfacial Polar Residues? 

Please do NOT make changes to this Sandbox until after April 23, 2010. Sandboxes 151-200 are reserved until then for use by the Chemistry 307 class at UNBC taught by Prof. Andrea Gorrell.