4cqo
From Proteopedia
(Difference between revisions)
| Line 2: | Line 2: | ||
<StructureSection load='4cqo' size='340' side='right' caption='[[4cqo]], [[Resolution|resolution]] 2.80Å' scene=''> | <StructureSection load='4cqo' size='340' side='right' caption='[[4cqo]], [[Resolution|resolution]] 2.80Å' scene=''> | ||
== Structural highlights == | == Structural highlights == | ||
| - | [[4cqo]] is a 4 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4CQO OCA]. <br> | + | <table><tr><td colspan='2'>[[4cqo]] is a 4 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4CQO OCA]. <br> |
| - | <b>Activity:</b> <span class='plainlinks'>[http://en.wikipedia.org/wiki/Glucokinase Glucokinase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.7.1.2 2.7.1.2] </span>< | + | </td></tr><tr><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Glucokinase Glucokinase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.7.1.2 2.7.1.2] </span></td></tr> |
| - | <b>Resources:</b> <span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4cqo FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4cqo OCA], [http://www.rcsb.org/pdb/explore.do?structureId=4cqo RCSB], [http://www.ebi.ac.uk/pdbsum/4cqo PDBsum]</span>< | + | <tr><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4cqo FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4cqo OCA], [http://www.rcsb.org/pdb/explore.do?structureId=4cqo RCSB], [http://www.ebi.ac.uk/pdbsum/4cqo PDBsum]</span></td></tr> |
| + | <table> | ||
== Disease == | == Disease == | ||
[[http://www.uniprot.org/uniprot/NANO1_HUMAN NANO1_HUMAN]] Male infertility due to NANOS1 mutation. The disease is caused by mutations affecting the gene represented in this entry. | [[http://www.uniprot.org/uniprot/NANO1_HUMAN NANO1_HUMAN]] Male infertility due to NANOS1 mutation. The disease is caused by mutations affecting the gene represented in this entry. | ||
== Function == | == Function == | ||
[[http://www.uniprot.org/uniprot/CNOT1_HUMAN CNOT1_HUMAN]] Belongs to the CCR4-NOT complex that functions as general transcription regulation complex. Acts as a transcriptional repressor. Represses the ligand-dependent transcriptional activation by nuclear receptors.<ref>PMID:10637334</ref> <ref>PMID:16778766</ref> [[http://www.uniprot.org/uniprot/NANO1_HUMAN NANO1_HUMAN]] May act as a translational repressor which regulates translation of specific mRNAs by forming a complex with PUM2 that associates with the 3'-UTR of mRNA targets. Capable of interfering with the proadhesive and anti-invasive functions of E-cadherin. Up-regulates the production of MMP14 to promote tumor cell invasion.<ref>PMID:17047063</ref> <ref>PMID:18223680</ref> | [[http://www.uniprot.org/uniprot/CNOT1_HUMAN CNOT1_HUMAN]] Belongs to the CCR4-NOT complex that functions as general transcription regulation complex. Acts as a transcriptional repressor. Represses the ligand-dependent transcriptional activation by nuclear receptors.<ref>PMID:10637334</ref> <ref>PMID:16778766</ref> [[http://www.uniprot.org/uniprot/NANO1_HUMAN NANO1_HUMAN]] May act as a translational repressor which regulates translation of specific mRNAs by forming a complex with PUM2 that associates with the 3'-UTR of mRNA targets. Capable of interfering with the proadhesive and anti-invasive functions of E-cadherin. Up-regulates the production of MMP14 to promote tumor cell invasion.<ref>PMID:17047063</ref> <ref>PMID:18223680</ref> | ||
| + | <div style="background-color:#fffaf0;"> | ||
== Publication Abstract from PubMed == | == Publication Abstract from PubMed == | ||
The RNA-binding proteins of the Nanos family play an essential role in germ cell development and survival in a wide range of metazoan species. They function by suppressing the expression of target mRNAs through the recruitment of effector complexes, which include the CCR4-NOT deadenylase complex. Here, we show that the three human Nanos paralogs (Nanos1-3) interact with the CNOT1 C-terminal domain and determine the structural basis for the specific molecular recognition. Nanos1-3 bind CNOT1 through a short CNOT1-interacting motif (NIM) that is conserved in all vertebrates and some invertebrate species. The crystal structure of the human Nanos1 NIM peptide bound to CNOT1 reveals that the peptide opens a conserved hydrophobic pocket on the CNOT1 surface by inserting conserved aromatic residues. The substitutions of these aromatic residues in the Nanos1-3 NIMs abolish binding to CNOT1 and abrogate the ability of the proteins to repress translation. Our findings provide the structural basis for the recruitment of the CCR4-NOT complex by vertebrate Nanos, indicate that the NIMs are the major determinants of the translational repression mediated by Nanos, and identify the CCR4-NOT complex as the main effector complex for Nanos function. | The RNA-binding proteins of the Nanos family play an essential role in germ cell development and survival in a wide range of metazoan species. They function by suppressing the expression of target mRNAs through the recruitment of effector complexes, which include the CCR4-NOT deadenylase complex. Here, we show that the three human Nanos paralogs (Nanos1-3) interact with the CNOT1 C-terminal domain and determine the structural basis for the specific molecular recognition. Nanos1-3 bind CNOT1 through a short CNOT1-interacting motif (NIM) that is conserved in all vertebrates and some invertebrate species. The crystal structure of the human Nanos1 NIM peptide bound to CNOT1 reveals that the peptide opens a conserved hydrophobic pocket on the CNOT1 surface by inserting conserved aromatic residues. The substitutions of these aromatic residues in the Nanos1-3 NIMs abolish binding to CNOT1 and abrogate the ability of the proteins to repress translation. Our findings provide the structural basis for the recruitment of the CCR4-NOT complex by vertebrate Nanos, indicate that the NIMs are the major determinants of the translational repression mediated by Nanos, and identify the CCR4-NOT complex as the main effector complex for Nanos function. | ||
| Line 15: | Line 17: | ||
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | ||
| + | </div> | ||
== References == | == References == | ||
<references/> | <references/> | ||
Revision as of 09:38, 1 May 2014
Structure of the human CNOT1 superfamily homology domain in complex with a Nanos1 peptide
| |||||||||||
