2rrd: Difference between revisions
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==Structure of HRDC domain from human Bloom syndrome protein, BLM== | ==Structure of HRDC domain from human Bloom syndrome protein, BLM== | ||
<StructureSection load='2rrd' size='340' side='right' caption='[[2rrd]], [[NMR_Ensembles_of_Models | 20 NMR models]]' scene=''> | <StructureSection load='2rrd' size='340' side='right'caption='[[2rrd]], [[NMR_Ensembles_of_Models | 20 NMR models]]' scene=''> | ||
== Structural highlights == | == Structural highlights == | ||
<table><tr><td colspan='2'>[[2rrd]] is a 1 chain structure with sequence from [ | <table><tr><td colspan='2'>[[2rrd]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Human Human]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2RRD OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2RRD FirstGlance]. <br> | ||
</td></tr><tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">BLM, RECQ2, RECQL3 ([ | </td></tr><tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">BLM, RECQ2, RECQL3 ([https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 HUMAN])</td></tr> | ||
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[ | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=2rrd FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2rrd OCA], [https://pdbe.org/2rrd PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2rrd RCSB], [https://www.ebi.ac.uk/pdbsum/2rrd PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2rrd ProSAT]</span></td></tr> | ||
</table> | </table> | ||
== Disease == | == Disease == | ||
[[ | [[https://www.uniprot.org/uniprot/BLM_HUMAN BLM_HUMAN]] Bloom syndrome. The disease is caused by mutations affecting the gene represented in this entry. | ||
== Function == | == Function == | ||
[[ | [[https://www.uniprot.org/uniprot/BLM_HUMAN BLM_HUMAN]] Participates in DNA replication and repair. Exhibits a magnesium-dependent ATP-dependent DNA-helicase activity that unwinds single- and double-stranded DNA in a 3'-5' direction. Involved in 5'-end resection of DNA during double-strand break (DSB) repair: unwinds DNA and recruits DNA2 which mediates the cleavage of 5'-ssDNA. Negatively regulates sister chromatid exchange (SCE).<ref>PMID:9388193</ref> <ref>PMID:12019152</ref> <ref>PMID:21325134</ref> <ref>PMID:23509288</ref> | ||
== Evolutionary Conservation == | == Evolutionary Conservation == | ||
[[Image:Consurf_key_small.gif|200px|right]] | [[Image:Consurf_key_small.gif|200px|right]] | ||
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</StructureSection> | </StructureSection> | ||
[[Category: Human]] | [[Category: Human]] | ||
[[Category: Large Structures]] | |||
[[Category: Hakoshima, T]] | [[Category: Hakoshima, T]] | ||
[[Category: Ito, Y]] | [[Category: Ito, Y]] | ||
Revision as of 13:35, 7 July 2021
Structure of HRDC domain from human Bloom syndrome protein, BLMStructure of HRDC domain from human Bloom syndrome protein, BLM
Structural highlights
Disease[BLM_HUMAN] Bloom syndrome. The disease is caused by mutations affecting the gene represented in this entry. Function[BLM_HUMAN] Participates in DNA replication and repair. Exhibits a magnesium-dependent ATP-dependent DNA-helicase activity that unwinds single- and double-stranded DNA in a 3'-5' direction. Involved in 5'-end resection of DNA during double-strand break (DSB) repair: unwinds DNA and recruits DNA2 which mediates the cleavage of 5'-ssDNA. Negatively regulates sister chromatid exchange (SCE).[1] [2] [3] [4] Evolutionary Conservation Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf. Publication Abstract from PubMedBloom syndrome is a rare genetic disorder characterized by severe growth retardation and cancer predisposition. The disease is caused by a loss of function of the Bloom syndrome protein (BLM), a member of the RecQ family of DNA helicases. Here we report on the first 3D structure of a BLM fragment, a solution structure of the C-terminal helicase-and-ribonuclease D-C-terminal (HRDC) domain from human BLM. The structure reveals unique features of BLM HRDC that are distinct from the HRDC domain of Werner syndrome protein. In particular, BLM HRDC retains many acidic residues exposed to the solvent, which makes the domain surface extensively electronegative. Consistent with this, fluorescence polarization assays showed an inability of isolated BLM HRDC to interact with DNA substrates. Analyses employing ultracentrifugation, gel-filtration, CD spectroscopy and dynamic light scattering showed that the BLM HRDC domain exists as a stable monomer in solution. The results show that BLM HRDC is a compact, robust and acidic motif which may play a distinct role apart from DNA binding. Solution structure of the HRDC domain of human Bloom syndrome protein BLM.,Sato A, Mishima M, Nagai A, Kim SY, Ito Y, Hakoshima T, Jee JG, Kitano K J Biochem. 2010 Oct;148(4):517-25. Epub 2010 Aug 25. PMID:20739603[5] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. References
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