1rzt
From Proteopedia
| Line 1: | Line 1: | ||
| - | [[Image:1rzt.gif|left|200px]] | + | [[Image:1rzt.gif|left|200px]] |
| - | + | ||
| - | '''Crystal structure of DNA polymerase lambda complexed with a two nucleotide gap DNA molecule''' | + | {{Structure |
| + | |PDB= 1rzt |SIZE=350|CAPTION= <scene name='initialview01'>1rzt</scene>, resolution 2.10Å | ||
| + | |SITE= | ||
| + | |LIGAND= <scene name='pdbligand=NA:SODIUM+ION'>NA</scene> and <scene name='pdbligand=EDO:1,2-ETHANEDIOL'>EDO</scene> | ||
| + | |ACTIVITY= [http://en.wikipedia.org/wiki/DNA-directed_DNA_polymerase DNA-directed DNA polymerase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.7.7.7 2.7.7.7] | ||
| + | |GENE= POLL ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 Homo sapiens]) | ||
| + | }} | ||
| + | |||
| + | '''Crystal structure of DNA polymerase lambda complexed with a two nucleotide gap DNA molecule''' | ||
| + | |||
==Overview== | ==Overview== | ||
| Line 7: | Line 16: | ||
==About this Structure== | ==About this Structure== | ||
| - | 1RZT is a [ | + | 1RZT is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1RZT OCA]. |
==Reference== | ==Reference== | ||
| - | A structural solution for the DNA polymerase lambda-dependent repair of DNA gaps with minimal homology., Garcia-Diaz M, Bebenek K, Krahn JM, Blanco L, Kunkel TA, Pedersen LC, Mol Cell. 2004 Feb 27;13(4):561-72. PMID:[http:// | + | A structural solution for the DNA polymerase lambda-dependent repair of DNA gaps with minimal homology., Garcia-Diaz M, Bebenek K, Krahn JM, Blanco L, Kunkel TA, Pedersen LC, Mol Cell. 2004 Feb 27;13(4):561-72. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/14992725 14992725] |
[[Category: DNA-directed DNA polymerase]] | [[Category: DNA-directed DNA polymerase]] | ||
[[Category: Homo sapiens]] | [[Category: Homo sapiens]] | ||
| Line 24: | Line 33: | ||
[[Category: dna polymerase lambda]] | [[Category: dna polymerase lambda]] | ||
| - | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu | + | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Mar 20 13:58:32 2008'' |
Revision as of 11:58, 20 March 2008
| |||||||
| , resolution 2.10Å | |||||||
|---|---|---|---|---|---|---|---|
| Ligands: | and | ||||||
| Gene: | POLL (Homo sapiens) | ||||||
| Activity: | DNA-directed DNA polymerase, with EC number 2.7.7.7 | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
Crystal structure of DNA polymerase lambda complexed with a two nucleotide gap DNA molecule
Overview
Human DNA polymerase lambda (Pol lambda) is a family X member with low frameshift fidelity that has been suggested to perform gap-filling DNA synthesis during base excision repair and during repair of broken ends with limited homology. Here, we present a 2.1 A crystal structure of the catalytic core of Pol lambda in complex with DNA containing a two nucleotide gap. Pol lambda makes limited contacts with the template strand at the polymerase active site, and superimposition with Pol beta in a ternary complex suggests a shift in the position of the DNA at the active site that is reminiscent of a deletion intermediate. Surprisingly, Pol lambda can adopt a closed conformation, even in the absence of dNTP binding. These observations have implications for the catalytic mechanism and putative DNA repair functions of Pol lambda.
About this Structure
1RZT is a Single protein structure of sequence from Homo sapiens. Full crystallographic information is available from OCA.
Reference
A structural solution for the DNA polymerase lambda-dependent repair of DNA gaps with minimal homology., Garcia-Diaz M, Bebenek K, Krahn JM, Blanco L, Kunkel TA, Pedersen LC, Mol Cell. 2004 Feb 27;13(4):561-72. PMID:14992725
Page seeded by OCA on Thu Mar 20 13:58:32 2008
