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FLASH GENE
Symbol TAF1B contributors: mct - updated : 24-10-2015
HGNC name TATA box binding protein (TBP)-associated factor, RNA polymerase I, B, 63kDa
HGNC id 11533
PROTEIN
PHYSICAL PROPERTIES
STRUCTURE
motifs/domains
  • N-terminal zinc ribbon and cyclin-like fold domains
  • HOMOLOGY
    Homologene
    FAMILY
    CATEGORY transcription factor
    SUBCELLULAR LOCALIZATION     plasma membrane
        intracellular
    intracellular,cytoplasm
    intracellular,nucleus,nucleoplasm
    basic FUNCTION
  • template activating factor I
  • binding to the core promoter of ribosomal RNA genes to position the polymerase properly and acting as a channel for regulatory signals
  • assembly of TBP and associated factors (TAFs), essential for preinitiation complex formation at ribosomal RNA gene promoters
  • essential for Pol I recruitment to the ribosomal RNA gene promoter, also has an essential postpolymerase recruitment role
  • GTF2B-like factor, having a key function in Pol I transcription
  • initiation of transcription for ribosomal RNA (rRNA) by RNA polymerase I requires TBP and TBP-associated factors (TAF1A, TAF1B and TAF1C)
  • CELLULAR PROCESS nucleotide, transcription
    PHYSIOLOGICAL PROCESS
    PATHWAY
    metabolism
    signaling
    a component component of SL1 (complex composed of the TATA-binding protein (TBP) and three TBP-associated factors (TAFs) specific for RNA polymerase I), general transcription factor associated with POLR1, synthesis of 45S RNA precursors
    INTERACTION
    DNA
    RNA
    small molecule
    protein
  • tata box binding (TBP) specifically interacting with mitotic cyclin B
  • TBP loading by AFF1 through TAF1A, TAF1B, TAF1C is the major rate-limiting step in MLL fusion-dependent transcription
  • cell & other
    REGULATION
    ASSOCIATED DISORDERS
    corresponding disease(s)
    Susceptibility
    Variant & Polymorphism
    Candidate gene
    Marker
    Therapy target
    ANIMAL & CELL MODELS