3iab

Crystal structure of RNase P /RNase MRP proteins Pop6, Pop7 in a complex with the P3 domain of RNase MRP RNA

spinqualitylabelsall models 3iab, resolution 2.70Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 3iab is a 3 chain structure with sequence from Saccharomyces cerevisiae. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Ligands: ZN NonStd Res: MSE Gene: POP6, YGR030C (Saccharomyces cerevisiae), POP7, RPP2, YBR1219, YBR167C (Saccharomyces cerevisiae) Activity: Ribonuclease P, with EC number 3.1.26.5 Resources: FirstGlance, OCA, RCSB, PDBsum Function [POP6_YEAST] Component of ribonuclease P, a protein complex that generates mature tRNA molecules by cleaving their 5'-ends. Also a component of RNase MRP, which cleaves pre-rRNA sequences. [POP7_YEAST] Component of ribonuclease P, a protein complex that generates mature tRNA molecules by cleaving their 5'-ends. Also a component of RNase MRP, which cleaves pre-rRNA sequences. 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 PubMed Ribonuclease (RNase) P is a site-specific endoribonuclease found in all kingdoms of life. Typical RNase P consists of a catalytic RNA component and a protein moiety. In the eukaryotes, the RNase P lineage has split into two, giving rise to a closely related enzyme, RNase MRP, which has similar components but has evolved to have different specificities. The eukaryotic RNases P/MRP have acquired an essential helix-loop-helix protein-binding RNA domain P3 that has an important function in eukaryotic enzymes and distinguishes them from bacterial and archaeal RNases P. Here, we present a crystal structure of the P3 RNA domain from Saccharomyces cerevisiae RNase MRP in a complex with RNase P/MRP proteins Pop6 and Pop7 solved to 2.7 A. The structure suggests similar structural organization of the P3 RNA domains in RNases P/MRP and possible functions of the P3 domains and proteins bound to them in the stabilization of the holoenzymes' structures as well as in interactions with substrates. It provides the first insight into the structural organization of the eukaryotic enzymes of the RNase P/MRP family. Eukaryotic ribonucleases P/MRP: the crystal structure of the P3 domain.,Perederina A, Esakova O, Quan C, Khanova E, Krasilnikov AS EMBO J. 2010 Feb 17;29(4):761-9. Epub 2010 Jan 14. PMID:20075859 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See Also Ribonuclease Temp User:Jaime.Prilusky/Test/tree

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