1s5j

<StructureSection load='1s5j' size='340' side='right' caption='[[1s5j]], [[Resolution|resolution]] 2.40&Aring;' scene=''>

<table><tr><td colspan='2'>[[1s5j]] is a 1 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1S5J OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1S5J FirstGlance]. <br>

</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene></td></tr>

<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[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] </span></td></tr>

<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1s5j FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1s5j OCA], [http://pdbe.org/1s5j PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1s5j RCSB], [http://www.ebi.ac.uk/pdbsum/1s5j PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=1s5j ProSAT]</span></td></tr>

[[http://www.uniprot.org/uniprot/DPOL1_SULSO DPOL1_SULSO]] This polymerase possesses two enzymatic activities: DNA synthesis (polymerase) and an exonucleolytic activity that degrades single stranded DNA in the 3'- to 5'-direction.

<scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/s5/1s5j_consurf.spt"</scriptWhenChecked>

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== Publication Abstract from PubMed ==

To minimize the large number of mispairs during genome duplication owing to the large amount of DNA to be synthesized, many replicative polymerases have accessory domains with complementary functions. We describe the crystal structure of replicative DNA polymerase B1 from the archaeon Sulfolobus solfataricus. Comparison between other known structures indicates that although the protein is folded into the typical N-terminal, editing 3'-5'exonuclease, and C-terminal right-handed polymerase domains, it is characterized by the unusual presence of two extra alpha helices in the N-terminal domain interacting with the fingers helices to form an extended fingers subdomain, a structural feature that can account for some functional features of the protein. We explore the structural basis of specific lesion recognition, the initial step in DNA repair, describing how the N-terminal subdomain pocket of archaeal DNA polymerases could allow specific recognition of deaminated bases such as uracil and hypoxanthine in addition to the typical DNA bases.

Insights into DNA replication: the crystal structure of DNA polymerase B1 from the archaeon Sulfolobus solfataricus.,Savino C, Federici L, Johnson KA, Vallone B, Nastopoulos V, Rossi M, Pisani FM, Tsernoglou D Structure. 2004 Nov;12(11):2001-8. PMID:15530364<ref>PMID:15530364</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>

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<div class="pdbe-citations 1s5j" style="background-color:#fffaf0;"></div>

*[[DNA polymerase|DNA polymerase]]

[[Category: DNA-directed DNA polymerase]]

[[Category: Federici, L]]

[[Category: Johnson, K A]]

[[Category: Nastopoulos, V]]

[[Category: Pisani, F M]]

[[Category: Rossi, M]]

[[Category: Savino, C]]

[[Category: Tsernoglou, D]]

[[Category: Transferase]]