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An Information Portal to 105097 Biological Macromolecular Structures

2F5 Epitope scaffold ES2
Biology and Chemistry Report
3LES
  •   Structure Details   Hide

    Structure Keywords

    Keywords IMMUNE SYSTEM
    Text HIV-1, GP41, MONOCLONAL ANTIBODY, 2F5, EPITOPE, TRANSPLANT, SCAFFOLD, GRAFT, SIGMA FACTOR, RE-ELICITATION, IMMUNE SYSTEM, VACCINE DESIGN

    Polymeric Molecules

    Chain A,B
    Description RNA polymerase sigma factor 
    Fragment UNP RESIDUES 93-271 
    Nonstandard Linkage no 
    Nonstandard Monomers no 
    Polymer Type polypeptide(L) 
    Formula Weight 20209.5 
    Source Method genetically manipulated  

    Ligands and Prosthetic Groups

    ID Name Chemical Formula Weight Ligand Structure
    SO4  SULFATE ION  O4 S   96.06  View 
     
  •   Protein Details   Hide

    UniProtKB Information

    Chain SWS/UNP ID SWS/UNP Accession(s)
    A,B SIGA_THEAQ Q9EZJ8     

    Keywords and Names

    Chain(s) RCSB Name UniProtKB Name UniProtKB Keywords

    C: Cellular Location | F: Molecular Function | P: Biological Process
    Chain A,B
    GO ID   Ontology GO Term Definition
    6352   DNA Templated Transcription Initiation  Any Process Involved in the Assembly of the RNA Polymerase Preinitiation Complex (pic) At the Core Promoter Region of a DNA Template Resulting in the Subsequent Synthesis of RNA From That Promoter. the Initiation Phase Includes Pic Assembly and the Formation of the First Few Bonds in the RNA Chain Including Abortive Initiation Which Occurs When the First Few Nucleotides Are Repeatedly Synthesized and Then Released. the Initiation Phase Ends Just Before and Does Not Include Promoter Clearance or Release Which Is the Transition Between the Initiation and Elongation Phases of Transcription. 
    6355   Regulation of Transcription DNA Templated  Any Process That Modulates the Frequency Rate or Extent of Cellular DNA Templated Transcription. 
    3677   DNA Binding  Any Molecular Function by Which a Gene Product Interacts Selectively and Non Covalently with DNA (deoxyribonucleic Acid). 
    3700   Sequence Specific DNA Binding Transcription Factor Activity  Interacting Selectively and Non Covalently with a Specific DNA Sequence in Order to Modulate Transcription. the Transcription Factor May or May Not Also Interact Selectively with a Protein or Macromolecular Complex. 
    16987   Sigma Factor Activity  A Sigma Factor Is the Promoter Specificity Subunit of Eubacterial Type Multisubunit RNA Polymerases Those Whose Core Subunit Composition Is Often Described As Alpha(2) Beta Beta Prime. (this Type of Multisubunit RNA Polymerase Complex Is Known to Be Found in Eubacteria and Plant Plastids). Although Sigma Does Not Bind DNA On Its Own When Combined with the Core to Form the Holoenzyme This Binds Specifically to Promoter Sequences with the Sigma Factor Making Sequence Specific Contacts with the Promoter Elements. the Sigma Subunit Is Released From the Elongating Form of the Polymerase and Is Thus Free to Act Catalytically For Multiple RNA Polymerase Core Enzymes. 


     
  •   Gene Details   Hide

    Genetic Source

    Chain A,B
    Scientific Name Thermus aquaticus  
    Gene sigma factor siga
    Host Common Name Human
    Host Scientific Name Homo sapiens  
    Host Strain Embryonic Kidney Cell Line 293
    Host Vector Type Plasmid
    Host Plasmid Name CMV-R