3aal: Difference between revisions

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[[Image:3aal.png|left|200px]]
==Crystal Structure of endonuclease IV from Geobacillus kaustophilus==
<StructureSection load='3aal' size='340' side='right' caption='[[3aal]], [[Resolution|resolution]] 1.60&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[3aal]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Geobacillus_kaustophilus Geobacillus kaustophilus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3AAL OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3AAL FirstGlance]. <br>
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=CAC:CACODYLATE+ION'>CAC</scene>, <scene name='pdbligand=FE:FE+(III)+ION'>FE</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr>
<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[3aam|3aam]]</td></tr>
<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">GK2474 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=1462 Geobacillus kaustophilus])</td></tr>
<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Deoxyribonuclease_IV_(phage-T(4)-induced) Deoxyribonuclease IV (phage-T(4)-induced)], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.1.21.2 3.1.21.2] </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=3aal FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3aal OCA], [http://www.rcsb.org/pdb/explore.do?structureId=3aal RCSB], [http://www.ebi.ac.uk/pdbsum/3aal PDBsum]</span></td></tr>
</table>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Endonuclease IV (EndoIV) is an endonuclease that acts at apurinic/apyrimidinic (AP) sites and is classified as either long-type or short-type. The crystal structures of representative types of EndoIV from Geobacillus kaustophilus and Thermus thermophilus HB8 were determined using X-ray crystallography. G. kaustophilus EndoIV (the long type) had a higher affinity for double-stranded DNA containing an AP-site analogue than T. thermophilus EndoIV (the short type). Structural analysis of the two different EndoIVs suggested that a C-terminal DNA-recognition loop that is only present in the long type contributes to its high affinity for AP sites. A mutation analysis showed that Lys267 in the C-terminal DNA-recognition loop plays an important role in DNA binding.


{{STRUCTURE_3aal|  PDB=3aal  |  SCENE=  }}
An additional C-terminal loop in endonuclease IV, an apurinic/apyrimidinic endonuclease, controls binding affinity to DNA.,Asano R, Ishikawa H, Nakane S, Nakagawa N, Kuramitsu S, Masui R Acta Crystallogr D Biol Crystallogr. 2011 Mar;67(Pt 3):149-55. Epub 2011, Feb 15. PMID:21358045<ref>PMID:21358045</ref>


===Crystal Structure of endonuclease IV from Geobacillus kaustophilus===
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
 
</div>
{{ABSTRACT_PUBMED_21358045}}
== References ==
 
<references/>
==About this Structure==
__TOC__
[[3aal]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Geobacillus_kaustophilus Geobacillus kaustophilus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3AAL OCA].
</StructureSection>
 
==See Also==
*[[Endonuclease|Endonuclease]]
 
==Reference==
<ref group="xtra">PMID:021358045</ref><references group="xtra"/>
[[Category: Geobacillus kaustophilus]]
[[Category: Geobacillus kaustophilus]]
[[Category: Asano, R.]]
[[Category: Asano, R.]]

Revision as of 15:00, 29 October 2014

Crystal Structure of endonuclease IV from Geobacillus kaustophilusCrystal Structure of endonuclease IV from Geobacillus kaustophilus

Structural highlights

3aal is a 1 chain structure with sequence from Geobacillus kaustophilus. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:, ,
Gene:GK2474 (Geobacillus kaustophilus)
Activity:Deoxyribonuclease IV (phage-T(4)-induced), with EC number 3.1.21.2
Resources:FirstGlance, OCA, RCSB, PDBsum

Publication Abstract from PubMed

Endonuclease IV (EndoIV) is an endonuclease that acts at apurinic/apyrimidinic (AP) sites and is classified as either long-type or short-type. The crystal structures of representative types of EndoIV from Geobacillus kaustophilus and Thermus thermophilus HB8 were determined using X-ray crystallography. G. kaustophilus EndoIV (the long type) had a higher affinity for double-stranded DNA containing an AP-site analogue than T. thermophilus EndoIV (the short type). Structural analysis of the two different EndoIVs suggested that a C-terminal DNA-recognition loop that is only present in the long type contributes to its high affinity for AP sites. A mutation analysis showed that Lys267 in the C-terminal DNA-recognition loop plays an important role in DNA binding.

An additional C-terminal loop in endonuclease IV, an apurinic/apyrimidinic endonuclease, controls binding affinity to DNA.,Asano R, Ishikawa H, Nakane S, Nakagawa N, Kuramitsu S, Masui R Acta Crystallogr D Biol Crystallogr. 2011 Mar;67(Pt 3):149-55. Epub 2011, Feb 15. PMID:21358045[1]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

References

  1. Asano R, Ishikawa H, Nakane S, Nakagawa N, Kuramitsu S, Masui R. An additional C-terminal loop in endonuclease IV, an apurinic/apyrimidinic endonuclease, controls binding affinity to DNA. Acta Crystallogr D Biol Crystallogr. 2011 Mar;67(Pt 3):149-55. Epub 2011, Feb 15. PMID:21358045 doi:10.1107/S0907444910052479

3aal, resolution 1.60Å

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