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Crystal structure of an Aar2p C-terminal deletion mutant in conplex with Prp8p RNaseH
Biology and Chemistry Report
4ILH
  •   Structure Details   Hide

    Structure Keywords

    Keywords SPLICING
    Text U5 snRNP assembly, Aar2, Prp8, SPLICING

    Polymeric Molecules

    Chain A
    Description Pre-mRNA-splicing factor 8 
    Fragment yPrp8 RNaseH (UNP Residues 1835-2096) 
    Nonstandard Linkage no 
    Nonstandard Monomers no 
    Polymer Type polypeptide(L) 
    Formula Weight 29501.3 
    Source Method genetically manipulated  
    Chain B
    Description A1 cistron-splicing factor AAR2 
    Nonstandard Linkage no 
    Nonstandard Monomers no 
    Polymer Type polypeptide(L) 
    Formula Weight 39958.3 
    Source Method genetically manipulated  

     
  •   Protein Details   Hide

    UniProtKB Information

    Chain SWS/UNP ID SWS/UNP Accession(s)
    A PRP8_YEAST P33334     
    B AAR2_YEAST P32357     

    C: Cellular Location | F: Molecular Function | P: Biological Process
    Chain A
    GO ID   Ontology GO Term Definition
    398   MRNA Splicing Via Spliceosome  The Joining Together of Exons From One or More Primary Transcripts of Messenger RNA (mrna) and the Excision of Intron Sequences Via a Spliceosomal Mechanism So That MRNA Consisting Only of the Joined Exons Is Produced. 
    5681   Spliceosomal Complex  Any of a Series of Ribonucleoprotein Complexes That Contain Snrna(s) and Small Nuclear Ribonucleoproteins (snrnps) and Are Formed Sequentially During the Spliceosomal Splicing of One or More Substrate Rnas and Which Also Contain the RNA Substrate(s) From the Initial Target Rnas of Splicing the Splicing Intermediate Rna(s) to the Final RNA Products. During Cis Splicing the Initial Target RNA Is a Single Contiguous RNA Transcript Whether MRNA Snorna Etc. and the Released Products Are a Spliced RNA and an Excised Intron Generally As a Lariat Structure. During Trans Splicing There Are Two Initial Substrate Rnas the Spliced Leader RNA and a Pre Mrna. 
    3676   Nucleic Acid Binding  Interacting Selectively and Non Covalently with Any Nucleic Acid. 
    Chain B
    GO ID   Ontology GO Term Definition
    244   Spliceosomal Tri Snrnp Complex Assembly  The Formation of a Tri Snrnp Complex Containing U4 and U6 (or U4atac and U6atac) Snrnas and U5 Snrnas and Associated Proteins. This Includes Reannealing of U4 and U6 (or U4atac and U6atac) Snrnas Released From Previous Rounds of Splicing to Reform the U4/u6 Snrnp (or U4atac/u6atac Snrnp) As Well As the Subsequent Association of the U5 Snrnp with the U4/u6 Snrnp (or U4atac/u6atac Snrnp) to Form a Tri Snrnp That Is Ready to Reassemble Into Another Spliceosome Complex. 
    6397   MRNA Processing  Any Process Involved in the Conversion of a Primary MRNA Transcript Into One or More Mature Mrna(s) Prior to Translation Into Polypeptide. 
    8380   RNA Splicing  The Process of Removing Sections of the Primary RNA Transcript to Remove Sequences Not Present in the Mature Form of the RNA and Joining the Remaining Sections to Form the Mature Form of the Rna. 
    5634   Nucleus  A Membrane Bounded Organelle of Eukaryotic Cells in Which Chromosomes Are Housed and Replicated. in Most Cells the Nucleus Contains All of the Cell's Chromosomes Except the Organellar Chromosomes and Is the Site of RNA Synthesis and Processing. in Some Species or in Specialized Cell Types RNA Metabolism or DNA Replication May Be Absent. 
    5682   U5 Snrnp  A Ribonucleoprotein Complex That Contains Small Nuclear RNA U5. 
    5737   Cytoplasm  All of the Contents of a Cell Excluding the Plasma Membrane and Nucleus But Including Other Subcellular Structures. 
    3674   Molecular_function  Elemental Activities Such As Catalysis or Binding Describing the Actions of a Gene Product At the Molecular Level. a Given Gene Product May Exhibit One or More Molecular Functions. 


     
  •   Gene Details   Hide

    Genetic Source

    Chain B
    Common Name Baker's Yeast
    Scientific Name Saccharomyces cerevisiae  
    Strain ATCC 204508 / S288C
    Gene aar2, ybl074c, ybl06.06, ybl0611
    Host Scientific Name Escherichia coli  


    Chain A
    Common Name Baker's Yeast
    Scientific Name Saccharomyces cerevisiae  
    Strain ATCC 204508 / S288C
    Gene prp8, dbf3, dna39, rna8, slt21, usa2, yhr165c
    Host Scientific Name Escherichia coli  


    Genome Information

    Chromosome Locus Gene ID Gene Name Symbol
    II - 852205     Aar2p AAR2    
    VIII - 856570     U4/U6-U5 snRNP complex component PRP8 PRP8