1QKL

hRPABC14.4, essential subunit of human RNA polymerases I, II and III


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 75 
  • Conformers Submitted: 22 
  • Selection Criteria: LEAST RESTRAINT VIOLATIONS 

wwPDB Validation   3D Report Full Report

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This is version 1.2 of the entry. See complete history


Literature

Solution Structure of the Hrpabc14.4 Subunit of Human RNA Polymerases

Del Rio-Portilla, F.Gaskell, A.G.Gilbert, D.Ladias, J.A.A.Wagner, G.

(1999) Nat Struct Biol 6: 1039

  • DOI: https://doi.org/10.1038/14923
  • Primary Citation of Related Structures:  
    1QKL

  • PubMed Abstract: 

    The protein hRPABC14.4 is an essential subunit of human RNA polymerases I, II, and III and is required for the transcription of all human nuclear genes. The structure of hRPABC14.4 was determined by nuclear magnetic resonance spectroscopy. The protein fold comprises a highly conserved central domain forming two antiparallel alpha-helices flanked by the less conserved N- and C-terminal regions forming a five-stranded beta-sandwich. Amino acids from the two helices participate in the generation of a hydrophobic surface area which is conserved in all eukaryotic and archaeal homologous subunits, and likely constitutes a critical macromolecular interaction interface. The hRPABC14.4 structure accounts for mutagenesis results in Saccharomyces cerevisiae and provides a structural working model for elucidating the role of this subunit in the molecular architecture and function of the human nuclear RNA polymerases.


  • Organizational Affiliation

    Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, Massachusetts 02115, USA.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
DNA-DIRECTED RNA POLYMERASE II 14.4 KD POLYPEPTIDE127Homo sapiensMutation(s): 0 
EC: 2.7.7.6
UniProt & NIH Common Fund Data Resources
Find proteins for P61218 (Homo sapiens)
Explore P61218 
Go to UniProtKB:  P61218
PHAROS:  P61218
GTEx:  ENSG00000100142 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP61218
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 75 
  • Conformers Submitted: 22 
  • Selection Criteria: LEAST RESTRAINT VIOLATIONS 

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 1999-11-07
    Type: Initial release
  • Version 1.1: 2017-04-19
    Changes: Atomic model, Other
  • Version 1.2: 2024-05-15
    Changes: Data collection, Database references, Other