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| | <StructureSection load='6wge' size='340' side='right'caption='[[6wge]], [[Resolution|resolution]] 3.90Å' scene=''> | | <StructureSection load='6wge' size='340' side='right'caption='[[6wge]], [[Resolution|resolution]] 3.90Å' scene=''> |
| | == Structural highlights == | | == Structural highlights == |
| - | <table><tr><td colspan='2'>[[6wge]] is a 6 chain structure with sequence from [http://en.wikipedia.org/wiki/Human Human]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6WGE OCA]. For a <b>guided tour on the structure components</b> use [http://proteopedia.org/fgij/fg.htm?mol=6WGE FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[6wge]] is a 6 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6WGE OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=6WGE FirstGlance]. <br> |
| - | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=ANP:PHOSPHOAMINOPHOSPHONIC+ACID-ADENYLATE+ESTER'>ANP</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene></td></tr> | + | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">Electron Microscopy, [[Resolution|Resolution]] 3.9Å</td></tr> |
| - | <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">SMC1A, DXS423E, KIAA0178, SB1.8, SMC1, SMC1L1 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 HUMAN]), SMC3, BAM, BMH, CSPG6, SMC3L1 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 HUMAN]), RAD21, HR21, KIAA0078, NXP1, SCC1 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 HUMAN]), NIPBL, IDN3, SCC2 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 HUMAN])</td></tr> | + | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=ANP:PHOSPHOAMINOPHOSPHONIC+ACID-ADENYLATE+ESTER'>ANP</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene></td></tr> |
| - | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://proteopedia.org/fgij/fg.htm?mol=6wge FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6wge OCA], [http://pdbe.org/6wge PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=6wge RCSB], [http://www.ebi.ac.uk/pdbsum/6wge PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=6wge ProSAT]</span></td></tr> | + | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=6wge FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6wge OCA], [https://pdbe.org/6wge PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=6wge RCSB], [https://www.ebi.ac.uk/pdbsum/6wge PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=6wge ProSAT]</span></td></tr> |
| | </table> | | </table> |
| | == Disease == | | == Disease == |
| - | [[http://www.uniprot.org/uniprot/NIPBL_HUMAN NIPBL_HUMAN]] Cornelia de Lange syndrome;5p13 microduplication syndrome. The disease is caused by mutations affecting the gene represented in this entry. [[http://www.uniprot.org/uniprot/SMC1A_HUMAN SMC1A_HUMAN]] Cornelia de Lange syndrome;Wiedemann-Steiner syndrome. The disease is caused by mutations affecting the gene represented in this entry. [[http://www.uniprot.org/uniprot/RAD21_HUMAN RAD21_HUMAN]] Cornelia de Lange syndrome. The disease is caused by mutations affecting the gene represented in this entry.<ref>PMID:22633399</ref> [[http://www.uniprot.org/uniprot/SMC3_HUMAN SMC3_HUMAN]] Cornelia de Lange syndrome. The disease is caused by mutations affecting the gene represented in this entry. | + | [https://www.uniprot.org/uniprot/SMC1A_HUMAN SMC1A_HUMAN] Cornelia de Lange syndrome;Wiedemann-Steiner syndrome. The disease is caused by mutations affecting the gene represented in this entry. |
| | == Function == | | == Function == |
| - | [[http://www.uniprot.org/uniprot/NIPBL_HUMAN NIPBL_HUMAN]] Plays an important role in the loading of the cohesin complex on to DNA. Forms a heterodimeric complex (also known as cohesin loading complex) with MAU2/SCC4 which mediates the loading of the cohesin complex onto chromatin (PubMed:22628566, PubMed:28914604). Plays a role in cohesin loading at sites of DNA damage. Its recruitment to double-strand breaks (DSBs) sites occurs in a CBX3-, RNF8- and RNF168-dependent manner whereas its recruitment to UV irradiation-induced DNA damage sites occurs in a ATM-, ATR-, RNF8- and RNF168-dependent manner (PubMed:28167679). Along with ZNF609, promotes cortical neuron migration during brain development by regulating the transcription of crucial genes in this process. Preferentially binds promoters containing paused RNA polymerase II. Up-regulates the expression of SEMA3A, NRP1, PLXND1 and GABBR2 genes, among others (By similarity).[UniProtKB:Q6KCD5]<ref>PMID:22628566</ref> <ref>PMID:28167679</ref> <ref>PMID:28914604</ref> [[http://www.uniprot.org/uniprot/SMC1A_HUMAN SMC1A_HUMAN]] Involved in chromosome cohesion during cell cycle and in DNA repair. Central component of cohesin complex. The cohesin complex is required for the cohesion of sister chromatids after DNA replication. The cohesin complex apparently forms a large proteinaceous ring within which sister chromatids can be trapped. At anaphase, the complex is cleaved and dissociates from chromatin, allowing sister chromatids to segregate. The cohesin complex may also play a role in spindle pole assembly during mitosis. Involved in DNA repair via its interaction with BRCA1 and its related phosphorylation by ATM, or via its phosphorylation by ATR. Works as a downstream effector both in the ATM/NBS1 branch and in the ATR/MSH2 branch of S-phase checkpoint.<ref>PMID:11877377</ref> [[http://www.uniprot.org/uniprot/RAD21_HUMAN RAD21_HUMAN]] Cleavable component of the cohesin complex, involved in chromosome cohesion during cell cycle, in DNA repair, and in apoptosis. The cohesin complex is required for the cohesion of sister chromatids after DNA replication. The cohesin complex apparently forms a large proteinaceous ring within which sister chromatids can be trapped. At metaphase-anaphase transition, this protein is cleaved by separase/ESPL1 and dissociates from chromatin, allowing sister chromatids to segregate. The cohesin complex may also play a role in spindle pole assembly during mitosis. Also plays a role in apoptosis, via its cleavage by caspase-3/CASP3 or caspase-7/CASP7 during early steps of apoptosis: the C-terminal 64 kDa cleavage product may act as a nuclear signal to initiate cytoplasmic events involved in the apoptotic pathway.<ref>PMID:12417729</ref> <ref>PMID:11875078</ref> [[http://www.uniprot.org/uniprot/SMC3_HUMAN SMC3_HUMAN]] Central component of cohesin, a complex required for chromosome cohesion during the cell cycle. The cohesin complex may form a large proteinaceous ring within which sister chromatids can be trapped. At anaphase, the complex is cleaved and dissociates from chromatin, allowing sister chromatids to segregate. Cohesion is coupled to DNA replication and is involved in DNA repair. The cohesin complex plays also an important role in spindle pole assembly during mitosis and in chromosomes movement.<ref>PMID:11076961</ref> <ref>PMID:19907496</ref> | + | [https://www.uniprot.org/uniprot/SMC1A_HUMAN SMC1A_HUMAN] Involved in chromosome cohesion during cell cycle and in DNA repair. Central component of cohesin complex. The cohesin complex is required for the cohesion of sister chromatids after DNA replication. The cohesin complex apparently forms a large proteinaceous ring within which sister chromatids can be trapped. At anaphase, the complex is cleaved and dissociates from chromatin, allowing sister chromatids to segregate. The cohesin complex may also play a role in spindle pole assembly during mitosis. Involved in DNA repair via its interaction with BRCA1 and its related phosphorylation by ATM, or via its phosphorylation by ATR. Works as a downstream effector both in the ATM/NBS1 branch and in the ATR/MSH2 branch of S-phase checkpoint.<ref>PMID:11877377</ref> |
| - | <div style="background-color:#fffaf0;">
| + | |
| - | == Publication Abstract from PubMed ==
| + | |
| - | As a ring-shaped ATPase machine, cohesin organizes the eukaryotic genome by extruding DNA loops and mediates sister-chromatid cohesion by topologically entrapping DNA. How cohesin executes these fundamental DNA transactions is not understood. Using cryo-electron microscopy, we determine the structure of human cohesin bound to its loader NIPBL and DNA at medium resolution. Cohesin and NIPBL interact extensively and together form a central tunnel to entrap a 72-base pair DNA. NIPBL and DNA promote the engagement of cohesin's ATPase head domains and ATP binding. The hinge domains of cohesin adopt an "open washer" conformation and dock onto the STAG1 subunit. Our structure explains the synergistic activation of cohesin by NIPBL and DNA, and provides insight into DNA entrapment by cohesin.
| + | |
| - | | + | |
| - | Cryo-EM structure of the human cohesin-NIPBL-DNA complex.,Shi Z, Gao H, Bai XC, Yu H Science. 2020 May 14. pii: science.abb0981. doi: 10.1126/science.abb0981. PMID:32409525<ref>PMID:32409525</ref>
| + | |
| - | | + | |
| - | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br>
| + | |
| - | </div>
| + | |
| - | <div class="pdbe-citations 6wge" style="background-color:#fffaf0;"></div>
| + | |
| | == References == | | == References == |
| | <references/> | | <references/> |
| | __TOC__ | | __TOC__ |
| | </StructureSection> | | </StructureSection> |
| - | [[Category: Human]] | + | [[Category: Homo sapiens]] |
| | [[Category: Large Structures]] | | [[Category: Large Structures]] |
| - | [[Category: Bai, X C]] | + | [[Category: Bai XC]] |
| - | [[Category: Gao, H]] | + | [[Category: Gao H]] |
| - | [[Category: Shi, Z B]] | + | [[Category: Shi ZB]] |
| - | [[Category: Yu, H]] | + | [[Category: Yu H]] |
| - | [[Category: Atpase]]
| + | |
| - | [[Category: Cell cycle]]
| + | |
| - | [[Category: Cell cycle-dna complex]]
| + | |
| - | [[Category: Dna-binding protein]]
| + | |
| - | [[Category: Genome organization]]
| + | |
| - | [[Category: Protein-dna complex]]
| + | |
| - | [[Category: Sister chromatid cohesion]]
| + | |
| - | [[Category: Transcription regulation]]
| + | |
