2okv
From Proteopedia
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|PDB= 2okv |SIZE=350|CAPTION= <scene name='initialview01'>2okv</scene>, resolution 2.00Å | |PDB= 2okv |SIZE=350|CAPTION= <scene name='initialview01'>2okv</scene>, resolution 2.00Å | ||
|SITE= | |SITE= | ||
| - | |LIGAND= <scene name='pdbligand=MG:MAGNESIUM ION'>MG</scene> | + | |LIGAND= <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene> |
|ACTIVITY= | |ACTIVITY= | ||
|GENE= HARS2, C20orf88 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 Homo sapiens]) | |GENE= HARS2, C20orf88 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 Homo sapiens]) | ||
| + | |DOMAIN= | ||
| + | |RELATEDENTRY= | ||
| + | |RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2okv FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2okv OCA], [http://www.ebi.ac.uk/pdbsum/2okv PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=2okv RCSB]</span> | ||
}} | }} | ||
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[[Category: Bae, B.]] | [[Category: Bae, B.]] | ||
[[Category: Nair, S K.]] | [[Category: Nair, S K.]] | ||
| - | [[Category: MG]] | ||
[[Category: atpase]] | [[Category: atpase]] | ||
[[Category: dna replication]] | [[Category: dna replication]] | ||
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[[Category: trna deacylase]] | [[Category: trna deacylase]] | ||
| - | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on | + | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Mar 31 04:19:15 2008'' |
Revision as of 01:19, 31 March 2008
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| , resolution 2.00Å | |||||||
|---|---|---|---|---|---|---|---|
| Ligands: | |||||||
| Gene: | HARS2, C20orf88 (Homo sapiens) | ||||||
| Resources: | FirstGlance, OCA, PDBsum, RCSB | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
c-Myc DNA Unwinding Element Binding Protein
Overview
Local zones of easily unwound DNA are characteristic of prokaryotic and eukaryotic replication origins. The DNA-unwinding element of the human c-myc replication origin is essential for replicator activity and is a target of the DNA-unwinding element-binding protein DUE-B in vivo. We present here the 2.0A crystal structure of DUE-B and complementary biochemical characterization of its biological activity. The structure corresponds to a dimer of the N-terminal domain of the full-length protein and contains many of the structural elements of the nucleotide binding fold. A single magnesium ion resides in the putative active site cavity, which could serve to facilitate ATP hydrolytic activity of this protein. The structure also demonstrates a notable similarity to those of tRNA-editing enzymes. Consistent with this structural homology, the N-terminal core of DUE-B is shown to display both D-aminoacyl-tRNA deacylase activity and ATPase activity. We further demonstrate that the C-terminal portion of the enzyme is disordered and not essential for dimerization. However, this region is essential for DNA binding in vitro and becomes ordered in the presence of DNA.
About this Structure
2OKV is a Single protein structure of sequence from Homo sapiens. Full crystallographic information is available from OCA.
Reference
Structure and function of the c-myc DNA-unwinding element-binding protein DUE-B., Kemp M, Bae B, Yu JP, Ghosh M, Leffak M, Nair SK, J Biol Chem. 2007 Apr;282(14):10441-8. Epub 2007 Jan 30. PMID:17264083
Page seeded by OCA on Mon Mar 31 04:19:15 2008
Categories: Homo sapiens | Single protein | Bae, B. | Nair, S K. | Atpase | Dna replication | Due | Trna deacylase
