6hd7: Difference between revisions

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-'''Unreleased structure'''
+{{Large structure}}
+==Cryo-EM structure of the ribosome-NatA complex==
-The entry 6hd7 is ON HOLD  until Paper Publication
+<StructureSection load='6hd7' size='340' side='right' caption='[[6hd7]], [[Resolution|resolution]] 3.40&Aring;' scene=''>
+== Structural highlights ==
-Authors:
+<table><tr><td colspan='2'>[[6hd7]] is a 51 chain structure with sequence from [http://en.wikipedia.org/wiki/Saccharomyces_cerevisiae Saccharomyces cerevisiae]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6HD7 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=6HD7 FirstGlance]. <br>
+</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=3HE:4-{(2R)-2-[(1S,3S,5S)-3,5-DIMETHYL-2-OXOCYCLOHEXYL]-2-HYDROXYETHYL}PIPERIDINE-2,6-DIONE'>3HE</scene></td></tr>
-Description:
+<tr id='NonStdRes'><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=UNK:UNKNOWN'>UNK</scene></td></tr>
-[[Category: Unreleased Structures]]
+<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[4xnh|4xnh]], [[4kvm|4kvm]], [[5gak|5gak]]</td></tr>
+<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/N-terminal_amino-acid_N(alpha)-acetyltransferase_NatA N-terminal amino-acid N(alpha)-acetyltransferase NatA], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.3.1.255 2.3.1.255] </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=6hd7 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6hd7 OCA], [http://pdbe.org/6hd7 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=6hd7 RCSB], [http://www.ebi.ac.uk/pdbsum/6hd7 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=6hd7 ProSAT]</span></td></tr>
+</table>
+{{Large structure}}
+== Function ==
+[[http://www.uniprot.org/uniprot/RL11A_YEAST RL11A_YEAST]] Binds to 5S ribosomal RNA. [[http://www.uniprot.org/uniprot/RL40A_YEAST RL40A_YEAST]] Ubiquitin: Exists either covalently attached to another protein, or free (unanchored). When covalently bound, it is conjugated to target proteins via an isopeptide bond either as a monomer (monoubiquitin), a polymer linked via different Lys residues of the ubiquitin (polyubiquitin chains) or a linear polymer linked via the initiator Met of the ubiquitin (linear polyubiquitin chains). Polyubiquitin chains, when attached to a target protein, have different functions depending on the Lys residue of the ubiquitin that is linked: Lys-6-linked may be involved in DNA repair; Lys-11-linked is involved in ERAD (endoplasmic reticulum-associated degradation) and in cell-cycle regulation; Lys-29-linked is involved in lysosomal degradation; Lys-33-linked is involved in kinase modification; Lys-48-linked is involved in protein degradation via the proteasome; Lys-63-linked is involved in endocytosis, and DNA-damage responses. Linear polymer chains formed via attachment by the initiator Met lead to cell signaling. Ubiquitin is usually conjugated to Lys residues of target proteins, however, in rare cases, conjugation to Cys or Ser residues has been observed. When polyubiquitin is free (unanchored-polyubiquitin), it also has distinct roles, such as in activation of protein kinases, and in signaling (By similarity).  60S ribosomal protein L40-A: Component of the ribosome, a large ribonucleoprotein complex responsible for the synthesis of proteins in the cell. The small ribosomal subunit (SSU) binds messenger RNAs (mRNAs) and translates the encoded message by selecting cognate aminoacyl-transfer RNA (tRNA) molecules. The large subunit (LSU) contains the ribosomal catalytic site termed the peptidyl transferase center (PTC), which catalyzes the formation of peptide bonds, thereby polymerizing the amino acids delivered by tRNAs into a polypeptide chain. The nascent polypeptides leave the ribosome through a tunnel in the LSU and interact with protein factors that function in enzymatic processing, targeting, and the membrane insertion of nascent chains at the exit of the ribosomal tunnel (PubMed:22096102). eL40 is essential for translation of a subset of cellular transcripts, including stress response transcripts, such as DDR2 (PubMed:23169626).<ref>PMID:23169626</ref> <ref>PMID:22096102</ref>  [[http://www.uniprot.org/uniprot/ARD1_YEAST ARD1_YEAST]] Catalytic component of the NatA N-terminal acetyltransferase, which catalyzes acetylation of proteins beginning with Met-Ser, Met-Gly and Met-Ala. N-acetylation plays a role in normal eukaryotic translation and processing, protect against proteolytic degradation and protein turnover.<ref>PMID:1600941</ref>  [[http://www.uniprot.org/uniprot/RL4A_YEAST RL4A_YEAST]] Participates in the regulation of the accumulation of its own mRNA.<ref>PMID:2065661</ref>  [[http://www.uniprot.org/uniprot/RL5_YEAST RL5_YEAST]] Binds 5S RNA and is required for 60S subunit assembly. [[http://www.uniprot.org/uniprot/NAT1_YEAST NAT1_YEAST]] Non-catalytic component of the NatA N-terminal acetyltransferase, which catalyzes acetylation of proteins beginning with Met-Ser, Met-Gly and Met-Ala. N-acetylation plays a role in normal eukaryotic translation and processing, protect against proteolytic degradation and protein turnover. NAT1 anchors ARD1 and NAT5 to the ribosome and may present the N termini of nascent polypeptides for acetylation.<ref>PMID:1600941</ref> <ref>PMID:14517307</ref>  [[http://www.uniprot.org/uniprot/RL25_YEAST RL25_YEAST]] This protein binds to a specific region on the 26S rRNA. [[http://www.uniprot.org/uniprot/NAT5_YEAST NAT5_YEAST]] Non-essential component of the NatA N-terminal acetyltransferase, which catalyzes acetylation of proteins beginning with Met-Ser, Met-Gly and Met-Ala. N-acetylation plays a role in normal eukaryotic translation and processing, protect against proteolytic degradation and protein turnover. [[http://www.uniprot.org/uniprot/RL37A_YEAST RL37A_YEAST]] Binds to the 23S rRNA (By similarity).
+== References ==
+<references/>
+__TOC__
+</StructureSection>
+[[Category: Saccharomyces cerevisiae]]
+[[Category: Becker, T]]
+[[Category: Beckmann, R]]
+[[Category: Knorr, A G]]
+[[Category: Expansion segment]]
+[[Category: N-terminal acetylation]]
+[[Category: Protein modification]]
+[[Category: Ribosome]]
+[[Category: Translation]]