6qld
From Proteopedia
(Difference between revisions)
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<StructureSection load='6qld' size='340' side='right'caption='[[6qld]], [[Resolution|resolution]] 4.15Å' scene=''> | <StructureSection load='6qld' size='340' side='right'caption='[[6qld]], [[Resolution|resolution]] 4.15Å' scene=''> | ||
== Structural highlights == | == Structural highlights == | ||
| - | <table><tr><td colspan='2'>[[6qld]] is a 22 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6QLD OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=6QLD FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[6qld]] is a 22 chain structure with sequence from [http://en.wikipedia.org/wiki/ ] and [http://en.wikipedia.org/wiki/Baker's_yeast Baker's yeast]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6QLD OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=6QLD FirstGlance]. <br> |
| - | </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=6qld FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6qld OCA], [http://pdbe.org/6qld PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=6qld RCSB], [http://www.ebi.ac.uk/pdbsum/6qld PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=6qld ProSAT]</span></td></tr> | + | </td></tr><tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">MIF2, YKL089W ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=559292 Baker's yeast]), CTF19, MCM18, YPL018W, LPB13W ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=559292 Baker's yeast]), OKP1, YGR179C ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=559292 Baker's yeast]), AME1, ARP100, YBR211C, YBR1458 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=559292 Baker's yeast]), NKP1, YDR383C ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=559292 Baker's yeast]), NKP2, YLR315W ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=559292 Baker's yeast]), CSE4, CSL2, YKL049C, YKL262 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=559292 Baker's yeast]), HHF1, YBR009C, YBR0122, HHF2, YNL030W, N2752 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=559292 Baker's yeast]), HTB2, H2B2, YBL002W, YBL0104 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=559292 Baker's yeast]), HTA1, H2A1, SPT11, YDR225W, YD9934.10 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=559292 Baker's yeast]), HTB1, H2B1, SPT12, YDR224C, YD9934.09C ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=559292 Baker's yeast]), MCM16, YPR046W ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=559292 Baker's yeast]), CTF3, CHL3, YLR381W ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=559292 Baker's yeast]), MCM22, YJR135C, J2122 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=559292 Baker's yeast]), IML3, MCM19, YBR107C, YBR0836 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=559292 Baker's yeast]), CHL4, CTF17, MCM17, YDR254W, YD9320A.04 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=559292 Baker's yeast]), MCM21, CTF5, YDR318W ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=559292 Baker's yeast])</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=6qld FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6qld OCA], [http://pdbe.org/6qld PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=6qld RCSB], [http://www.ebi.ac.uk/pdbsum/6qld PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=6qld ProSAT]</span></td></tr> | ||
</table> | </table> | ||
== Function == | == Function == | ||
[[http://www.uniprot.org/uniprot/CENPQ_YEAST CENPQ_YEAST]] Component of the kinetochore, a multiprotein complex that assembles on centromeric DNA and attaches chromosomes to spindle microtubules, mediating chromosome segregation and sister chromatid segregation during meiosis and mitosis. Component of the inner kinetochore COMA complex, which connects centromere-associated proteins and the outer kinetochore. COMA interacts with other inner kinetochore proteins to form the inner kinetochore constitutive centromere-associated network (CCAN), which serves as a structural platform for outer kinetochore assembly.<ref>PMID:10323865</ref> <ref>PMID:14633972</ref> [[http://www.uniprot.org/uniprot/H2A1_YEAST H2A1_YEAST]] Core component of nucleosome which plays a central role in DNA double strand break (DSB) repair. Nucleosomes wrap and compact DNA into chromatin, limiting DNA accessibility to the cellular machineries which require DNA as a template. Histones thereby play a central role in transcription regulation, DNA repair, DNA replication and chromosomal stability. DNA accessibility is regulated via a complex set of post-translational modifications of histones, also called histone code, and nucleosome remodeling.<ref>PMID:11140636</ref> <ref>PMID:15458641</ref> <ref>PMID:15610741</ref> <ref>PMID:16299494</ref> [[http://www.uniprot.org/uniprot/CENPL_YEAST CENPL_YEAST]] Component of the kinetochore, a multiprotein complex that assembles on centromeric DNA and attaches chromosomes to spindle microtubules, mediating chromosome segregation and sister chromatid segregation during meiosis and mitosis. Component of the inner kinetochore constitutive centromere-associated network (CCAN), which serves as a structural platform for outer kinetochore assembly.<ref>PMID:11361335</ref> <ref>PMID:15241623</ref> [[http://www.uniprot.org/uniprot/H2B2_YEAST H2B2_YEAST]] Core component of nucleosome. Nucleosomes wrap and compact DNA into chromatin, limiting DNA accessibility to the cellular machineries which require DNA as a template. Histones thereby play a central role in transcription regulation, DNA repair, DNA replication and chromosomal stability. DNA accessibility is regulated via a complex set of post-translational modifications of histones, also called histone code, and nucleosome remodeling.<ref>PMID:12152067</ref> <ref>PMID:14752010</ref> <ref>PMID:15280549</ref> <ref>PMID:15652479</ref> <ref>PMID:15970663</ref> <ref>PMID:15632065</ref> <ref>PMID:16598039</ref> [[http://www.uniprot.org/uniprot/CENPC_YEAST CENPC_YEAST]] Component of the kinetochore, a multiprotein complex that assembles on centromeric DNA and attaches chromosomes to spindle microtubules, mediating chromosome segregation and sister chromatid segregation during meiosis and mitosis. Component of the inner kinetochore constitutive centromere-associated network (CCAN), which serves as a structural platform for outer kinetochore assembly (PubMed:8408221, PubMed:7579695, PubMed:22561346).<ref>PMID:22561346</ref> <ref>PMID:7579695</ref> <ref>PMID:8408221</ref> [[http://www.uniprot.org/uniprot/CENPA_YEAST CENPA_YEAST]] Histone H3-like variant which exclusively replaces conventional H3 in the nucleosome core of centromeric chromatin at the inner plate of the kinetochore. Required for recruitment and assembly of kinetochore proteins, mitotic progression and chromosome segregation. May serve as an epigenetic mark that propagates centromere identity through replication and cell division. Required for functional chromatin architecture at the yeast 2-micron circle partitioning locus and promotes equal plasmid segregation.<ref>PMID:7698647</ref> <ref>PMID:9741625</ref> <ref>PMID:9584087</ref> <ref>PMID:10454560</ref> <ref>PMID:11063678</ref> <ref>PMID:10891506</ref> <ref>PMID:10499801</ref> <ref>PMID:11606525</ref> <ref>PMID:15590827</ref> <ref>PMID:16207811</ref> <ref>PMID:16966420</ref> [[http://www.uniprot.org/uniprot/NKP1_YEAST NKP1_YEAST]] Component of the kinetochore, a multiprotein complex that assembles on centromeric DNA and attaches chromosomes to spindle microtubules, mediating chromosome segregation and sister chromatid segregation during meiosis and mitosis. Component of the inner kinetochore constitutive centromere-associated network (CCAN), which serves as a structural platform for outer kinetochore assembly.<ref>PMID:22561346</ref> [[http://www.uniprot.org/uniprot/CENPK_YEAST CENPK_YEAST]] Component of the kinetochore, a multiprotein complex that assembles on centromeric DNA and attaches chromosomes to spindle microtubules, mediating chromosome segregation and sister chromatid segregation during meiosis and mitosis. Component of the inner kinetochore constitutive centromere-associated network (CCAN), which serves as a structural platform for outer kinetochore assembly.<ref>PMID:9987135</ref> [[http://www.uniprot.org/uniprot/CENPH_YEAST CENPH_YEAST]] Component of the kinetochore, a multiprotein complex that assembles on centromeric DNA and attaches chromosomes to spindle microtubules, mediating chromosome segregation and sister chromatid segregation during meiosis and mitosis. Component of the inner kinetochore constitutive centromere-associated network (CCAN), which serves as a structural platform for outer kinetochore assembly.<ref>PMID:9862478</ref> [[http://www.uniprot.org/uniprot/CENPO_YEAST CENPO_YEAST]] Component of the kinetochore, a multiprotein complex that assembles on centromeric DNA and attaches chromosomes to spindle microtubules, mediating chromosome segregation and sister chromatid segregation during meiosis and mitosis. Component of the inner kinetochore COMA complex, which connects centromere-associated proteins and the outer kinetochore. COMA interacts with other inner kinetochore proteins to form the inner kinetochore constitutive centromere-associated network (CCAN), which serves as a structural platform for outer kinetochore assembly.<ref>PMID:9987135</ref> [[http://www.uniprot.org/uniprot/CENPU_YEAST CENPU_YEAST]] Component of the kinetochore, a multiprotein complex that assembles on centromeric DNA and attaches chromosomes to spindle microtubules, mediating chromosome segregation and sister chromatid segregation during meiosis and mitosis. Component of the inner kinetochore COMA complex, which connects centromere-associated proteins and the outer kinetochore. COMA interacts with other inner kinetochore proteins to form the inner kinetochore constitutive centromere-associated network (CCAN), which serves as a structural platform for outer kinetochore assembly.<ref>PMID:14633972</ref> [[http://www.uniprot.org/uniprot/H2B1_YEAST H2B1_YEAST]] Core component of nucleosome. Nucleosomes wrap and compact DNA into chromatin, limiting DNA accessibility to the cellular machineries which require DNA as a template. Histones thereby play a central role in transcription regulation, DNA repair, DNA replication and chromosomal stability. DNA accessibility is regulated via a complex set of post-translational modifications of histones, also called histone code, and nucleosome remodeling.<ref>PMID:11973294</ref> <ref>PMID:12152067</ref> <ref>PMID:14752010</ref> <ref>PMID:15280549</ref> <ref>PMID:15652479</ref> <ref>PMID:15970663</ref> <ref>PMID:15632126</ref> <ref>PMID:15632065</ref> <ref>PMID:16598039</ref> [[http://www.uniprot.org/uniprot/NKP2_YEAST NKP2_YEAST]] Component of the kinetochore, a multiprotein complex that assembles on centromeric DNA and attaches chromosomes to spindle microtubules, mediating chromosome segregation and sister chromatid segregation during meiosis and mitosis. Component of the inner kinetochore constitutive centromere-associated network (CCAN), which serves as a structural platform for outer kinetochore assembly.<ref>PMID:22561346</ref> [[http://www.uniprot.org/uniprot/CENPN_YEAST CENPN_YEAST]] Component of the kinetochore, a multiprotein complex that assembles on centromeric DNA and attaches chromosomes to spindle microtubules, mediating chromosome segregation and sister chromatid segregation during meiosis and mitosis. Component of the inner kinetochore constitutive centromere-associated network (CCAN), which serves as a structural platform for outer kinetochore assembly.<ref>PMID:9339342</ref> [[http://www.uniprot.org/uniprot/CENPI_YEAST CENPI_YEAST]] Component of the central kinetochore, which mediates the attachment of the centromere to the mitotic spindle by forming essential interactions between the microtubule-associated outer kinetochore proteins and the centromere-associated inner kinetochore proteins. Required for establishing bipolar spindle-microtubule attachments and proper chromosome segregation. Component of the kinetochore, a multiprotein complex that assembles on centromeric DNA and attaches chromosomes to spindle microtubules, mediating chromosome segregation and sister chromatid segregation during meiosis and mitosis. Component of the inner kinetochore constitutive centromere-associated network (CCAN), which serves as a structural platform for outer kinetochore assembly.<ref>PMID:12408861</ref> [[http://www.uniprot.org/uniprot/CENPP_YEAST CENPP_YEAST]] Component of the kinetochore, a multiprotein complex that assembles on centromeric DNA and attaches chromosomes to spindle microtubules, mediating chromosome segregation and sister chromatid segregation during meiosis and mitosis. Component of the inner kinetochore COMA complex, which connects centromere-associated proteins and the outer kinetochore. COMA interacts with other inner kinetochore proteins to form the inner kinetochore constitutive centromere-associated network (CCAN), which serves as a structural platform for outer kinetochore assembly.<ref>PMID:10323865</ref> <ref>PMID:14633972</ref> | [[http://www.uniprot.org/uniprot/CENPQ_YEAST CENPQ_YEAST]] Component of the kinetochore, a multiprotein complex that assembles on centromeric DNA and attaches chromosomes to spindle microtubules, mediating chromosome segregation and sister chromatid segregation during meiosis and mitosis. Component of the inner kinetochore COMA complex, which connects centromere-associated proteins and the outer kinetochore. COMA interacts with other inner kinetochore proteins to form the inner kinetochore constitutive centromere-associated network (CCAN), which serves as a structural platform for outer kinetochore assembly.<ref>PMID:10323865</ref> <ref>PMID:14633972</ref> [[http://www.uniprot.org/uniprot/H2A1_YEAST H2A1_YEAST]] Core component of nucleosome which plays a central role in DNA double strand break (DSB) repair. Nucleosomes wrap and compact DNA into chromatin, limiting DNA accessibility to the cellular machineries which require DNA as a template. Histones thereby play a central role in transcription regulation, DNA repair, DNA replication and chromosomal stability. DNA accessibility is regulated via a complex set of post-translational modifications of histones, also called histone code, and nucleosome remodeling.<ref>PMID:11140636</ref> <ref>PMID:15458641</ref> <ref>PMID:15610741</ref> <ref>PMID:16299494</ref> [[http://www.uniprot.org/uniprot/CENPL_YEAST CENPL_YEAST]] Component of the kinetochore, a multiprotein complex that assembles on centromeric DNA and attaches chromosomes to spindle microtubules, mediating chromosome segregation and sister chromatid segregation during meiosis and mitosis. Component of the inner kinetochore constitutive centromere-associated network (CCAN), which serves as a structural platform for outer kinetochore assembly.<ref>PMID:11361335</ref> <ref>PMID:15241623</ref> [[http://www.uniprot.org/uniprot/H2B2_YEAST H2B2_YEAST]] Core component of nucleosome. Nucleosomes wrap and compact DNA into chromatin, limiting DNA accessibility to the cellular machineries which require DNA as a template. Histones thereby play a central role in transcription regulation, DNA repair, DNA replication and chromosomal stability. DNA accessibility is regulated via a complex set of post-translational modifications of histones, also called histone code, and nucleosome remodeling.<ref>PMID:12152067</ref> <ref>PMID:14752010</ref> <ref>PMID:15280549</ref> <ref>PMID:15652479</ref> <ref>PMID:15970663</ref> <ref>PMID:15632065</ref> <ref>PMID:16598039</ref> [[http://www.uniprot.org/uniprot/CENPC_YEAST CENPC_YEAST]] Component of the kinetochore, a multiprotein complex that assembles on centromeric DNA and attaches chromosomes to spindle microtubules, mediating chromosome segregation and sister chromatid segregation during meiosis and mitosis. Component of the inner kinetochore constitutive centromere-associated network (CCAN), which serves as a structural platform for outer kinetochore assembly (PubMed:8408221, PubMed:7579695, PubMed:22561346).<ref>PMID:22561346</ref> <ref>PMID:7579695</ref> <ref>PMID:8408221</ref> [[http://www.uniprot.org/uniprot/CENPA_YEAST CENPA_YEAST]] Histone H3-like variant which exclusively replaces conventional H3 in the nucleosome core of centromeric chromatin at the inner plate of the kinetochore. Required for recruitment and assembly of kinetochore proteins, mitotic progression and chromosome segregation. May serve as an epigenetic mark that propagates centromere identity through replication and cell division. Required for functional chromatin architecture at the yeast 2-micron circle partitioning locus and promotes equal plasmid segregation.<ref>PMID:7698647</ref> <ref>PMID:9741625</ref> <ref>PMID:9584087</ref> <ref>PMID:10454560</ref> <ref>PMID:11063678</ref> <ref>PMID:10891506</ref> <ref>PMID:10499801</ref> <ref>PMID:11606525</ref> <ref>PMID:15590827</ref> <ref>PMID:16207811</ref> <ref>PMID:16966420</ref> [[http://www.uniprot.org/uniprot/NKP1_YEAST NKP1_YEAST]] Component of the kinetochore, a multiprotein complex that assembles on centromeric DNA and attaches chromosomes to spindle microtubules, mediating chromosome segregation and sister chromatid segregation during meiosis and mitosis. Component of the inner kinetochore constitutive centromere-associated network (CCAN), which serves as a structural platform for outer kinetochore assembly.<ref>PMID:22561346</ref> [[http://www.uniprot.org/uniprot/CENPK_YEAST CENPK_YEAST]] Component of the kinetochore, a multiprotein complex that assembles on centromeric DNA and attaches chromosomes to spindle microtubules, mediating chromosome segregation and sister chromatid segregation during meiosis and mitosis. Component of the inner kinetochore constitutive centromere-associated network (CCAN), which serves as a structural platform for outer kinetochore assembly.<ref>PMID:9987135</ref> [[http://www.uniprot.org/uniprot/CENPH_YEAST CENPH_YEAST]] Component of the kinetochore, a multiprotein complex that assembles on centromeric DNA and attaches chromosomes to spindle microtubules, mediating chromosome segregation and sister chromatid segregation during meiosis and mitosis. Component of the inner kinetochore constitutive centromere-associated network (CCAN), which serves as a structural platform for outer kinetochore assembly.<ref>PMID:9862478</ref> [[http://www.uniprot.org/uniprot/CENPO_YEAST CENPO_YEAST]] Component of the kinetochore, a multiprotein complex that assembles on centromeric DNA and attaches chromosomes to spindle microtubules, mediating chromosome segregation and sister chromatid segregation during meiosis and mitosis. Component of the inner kinetochore COMA complex, which connects centromere-associated proteins and the outer kinetochore. COMA interacts with other inner kinetochore proteins to form the inner kinetochore constitutive centromere-associated network (CCAN), which serves as a structural platform for outer kinetochore assembly.<ref>PMID:9987135</ref> [[http://www.uniprot.org/uniprot/CENPU_YEAST CENPU_YEAST]] Component of the kinetochore, a multiprotein complex that assembles on centromeric DNA and attaches chromosomes to spindle microtubules, mediating chromosome segregation and sister chromatid segregation during meiosis and mitosis. Component of the inner kinetochore COMA complex, which connects centromere-associated proteins and the outer kinetochore. COMA interacts with other inner kinetochore proteins to form the inner kinetochore constitutive centromere-associated network (CCAN), which serves as a structural platform for outer kinetochore assembly.<ref>PMID:14633972</ref> [[http://www.uniprot.org/uniprot/H2B1_YEAST H2B1_YEAST]] Core component of nucleosome. Nucleosomes wrap and compact DNA into chromatin, limiting DNA accessibility to the cellular machineries which require DNA as a template. Histones thereby play a central role in transcription regulation, DNA repair, DNA replication and chromosomal stability. DNA accessibility is regulated via a complex set of post-translational modifications of histones, also called histone code, and nucleosome remodeling.<ref>PMID:11973294</ref> <ref>PMID:12152067</ref> <ref>PMID:14752010</ref> <ref>PMID:15280549</ref> <ref>PMID:15652479</ref> <ref>PMID:15970663</ref> <ref>PMID:15632126</ref> <ref>PMID:15632065</ref> <ref>PMID:16598039</ref> [[http://www.uniprot.org/uniprot/NKP2_YEAST NKP2_YEAST]] Component of the kinetochore, a multiprotein complex that assembles on centromeric DNA and attaches chromosomes to spindle microtubules, mediating chromosome segregation and sister chromatid segregation during meiosis and mitosis. Component of the inner kinetochore constitutive centromere-associated network (CCAN), which serves as a structural platform for outer kinetochore assembly.<ref>PMID:22561346</ref> [[http://www.uniprot.org/uniprot/CENPN_YEAST CENPN_YEAST]] Component of the kinetochore, a multiprotein complex that assembles on centromeric DNA and attaches chromosomes to spindle microtubules, mediating chromosome segregation and sister chromatid segregation during meiosis and mitosis. Component of the inner kinetochore constitutive centromere-associated network (CCAN), which serves as a structural platform for outer kinetochore assembly.<ref>PMID:9339342</ref> [[http://www.uniprot.org/uniprot/CENPI_YEAST CENPI_YEAST]] Component of the central kinetochore, which mediates the attachment of the centromere to the mitotic spindle by forming essential interactions between the microtubule-associated outer kinetochore proteins and the centromere-associated inner kinetochore proteins. Required for establishing bipolar spindle-microtubule attachments and proper chromosome segregation. Component of the kinetochore, a multiprotein complex that assembles on centromeric DNA and attaches chromosomes to spindle microtubules, mediating chromosome segregation and sister chromatid segregation during meiosis and mitosis. Component of the inner kinetochore constitutive centromere-associated network (CCAN), which serves as a structural platform for outer kinetochore assembly.<ref>PMID:12408861</ref> [[http://www.uniprot.org/uniprot/CENPP_YEAST CENPP_YEAST]] Component of the kinetochore, a multiprotein complex that assembles on centromeric DNA and attaches chromosomes to spindle microtubules, mediating chromosome segregation and sister chromatid segregation during meiosis and mitosis. Component of the inner kinetochore COMA complex, which connects centromere-associated proteins and the outer kinetochore. COMA interacts with other inner kinetochore proteins to form the inner kinetochore constitutive centromere-associated network (CCAN), which serves as a structural platform for outer kinetochore assembly.<ref>PMID:10323865</ref> <ref>PMID:14633972</ref> | ||
| + | <div style="background-color:#fffaf0;"> | ||
| + | == Publication Abstract from PubMed == | ||
| + | In eukaryotes, accurate chromosome segregation in mitosis and meiosis maintains genome stability and prevents aneuploidy. Kinetochores are large protein complexes that, by assembling onto specialized Cenp-A nucleosomes(1,2), function to connect centromeric chromatin to microtubules of the mitotic spindle(3,4). Whereas the centromeres of vertebrate chromosomes comprise millions of DNA base pairs and attach to multiple microtubules, the simple point centromeres of budding yeast are connected to individual microtubules(5,6). All 16 budding yeast chromosomes assemble complete kinetochores using a single Cenp-A nucleosome (Cenp-A(Nuc)), each of which is perfectly centred on its cognate centromere(7-9). The inner and outer kinetochore modules are responsible for interacting with centromeric chromatin and microtubules, respectively. Here we describe the cryo-electron microscopy structure of the Saccharomyces cerevisiae inner kinetochore module, the constitutive centromere associated network (CCAN) complex, assembled onto a Cenp-A nucleosome (CCAN-Cenp-A(Nuc)). The structure explains the interdependency of the constituent subcomplexes of CCAN and shows how the Y-shaped opening of CCAN accommodates Cenp-A(Nuc) to enable specific CCAN subunits to contact the nucleosomal DNA and histone subunits. Interactions with the unwrapped DNA duplex at the two termini of Cenp-A(Nuc) are mediated predominantly by a DNA-binding groove in the Cenp-L-Cenp-N subcomplex. Disruption of these interactions impairs assembly of CCAN onto Cenp-A(Nuc). Our data indicate a mechanism of Cenp-A nucleosome recognition by CCAN and how CCAN acts as a platform for assembly of the outer kinetochore to link centromeres to the mitotic spindle for chromosome segregation. | ||
| + | |||
| + | Structure of the inner kinetochore CCAN complex assembled onto a centromeric nucleosome.,Yan K, Yang J, Zhang Z, McLaughlin SH, Chang L, Fasci D, Ehrenhofer-Murray AE, Heck AJR, Barford D Nature. 2019 Oct 2. pii: 10.1038/s41586-019-1609-1. doi:, 10.1038/s41586-019-1609-1. PMID:31578520<ref>PMID:31578520</ref> | ||
| + | |||
| + | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | ||
| + | </div> | ||
| + | <div class="pdbe-citations 6qld" style="background-color:#fffaf0;"></div> | ||
== References == | == References == | ||
<references/> | <references/> | ||
__TOC__ | __TOC__ | ||
</StructureSection> | </StructureSection> | ||
| + | [[Category: Baker's yeast]] | ||
[[Category: Large Structures]] | [[Category: Large Structures]] | ||
[[Category: Barford, D]] | [[Category: Barford, D]] | ||
Revision as of 07:37, 16 October 2019
Structure of inner kinetochore CCAN-Cenp-A complex
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Categories: Baker's yeast | Large Structures | Barford, D | Chang, L | Fasci, D | Heck, A J.R | McLaughlin, S H | Yan, K | Yang, J | Zhang, Z | Dna | Dna binding protein | Inner kinetochore | Nucleosome
