1kmj

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|PDB= 1kmj |SIZE=350|CAPTION= <scene name='initialview01'>1kmj</scene>, resolution 2.0&Aring;
|PDB= 1kmj |SIZE=350|CAPTION= <scene name='initialview01'>1kmj</scene>, resolution 2.0&Aring;
|SITE=
|SITE=
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|LIGAND= <scene name='pdbligand=PLP:PYRIDOXAL-5'-PHOSPHATE'>PLP</scene>
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|LIGAND= <scene name='pdbligand=PLP:PYRIDOXAL-5&#39;-PHOSPHATE'>PLP</scene>
|ACTIVITY= [http://en.wikipedia.org/wiki/Selenocysteine_lyase Selenocysteine lyase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=4.4.1.16 4.4.1.16]
|ACTIVITY= [http://en.wikipedia.org/wiki/Selenocysteine_lyase Selenocysteine lyase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=4.4.1.16 4.4.1.16]
|GENE=
|GENE=
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[[Category: structural genomic]]
[[Category: structural genomic]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Mar 20 12:19:24 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun Mar 23 12:30:31 2008''

Revision as of 10:30, 23 March 2008

Image:1kmj.gif


PDB ID 1kmj

Drag the structure with the mouse to rotate
, resolution 2.0Å
Ligands:
Activity: Selenocysteine lyase, with EC number 4.4.1.16
Coordinates: save as pdb, mmCIF, xml



E. coli NifS/CsdB protein at 2.0A with the cysteine persulfide intermediate (residue CSS).


Overview

E2 enzymes catalyze attachment of ubiquitin and ubiquitin-like proteins to lysine residues directly or through E3-mediated reactions. The small ubiquitin-like modifier SUMO regulates nuclear transport, stress response, and signal transduction in eukaryotes and is essential for cell-cycle progression in yeast. In contrast to most ubiquitin conjugation, the SUMO E2 enzyme Ubc9 is sufficient for substrate recognition and lysine modification of known SUMO targets. Crystallographic analysis of a complex between mammalian Ubc9 and a C-terminal domain of RanGAP1 at 2.5 A reveals structural determinants for recognition of consensus SUMO modification sequences found within SUMO-conjugated proteins. Structure-based mutagenesis and biochemical analysis of Ubc9 and RanGAP1 reveal distinct motifs required for substrate binding and SUMO modification of p53, IkappaBalpha, and RanGAP1.

About this Structure

1KMJ is a Single protein structure of sequence from Escherichia coli. Full crystallographic information is available from OCA.

Reference

Structural basis for E2-mediated SUMO conjugation revealed by a complex between ubiquitin-conjugating enzyme Ubc9 and RanGAP1., Bernier-Villamor V, Sampson DA, Matunis MJ, Lima CD, Cell. 2002 Feb 8;108(3):345-56. PMID:11853669

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