Aliases for POLR1A Gene
External Ids for POLR1A Gene
Previous GeneCards Identifiers for POLR1A Gene
The protein encoded by this gene is the largest subunit of the RNA polymerase I complex. The encoded protein represents the catalytic subunit of the complex, which transcribes DNA into ribosomal RNA precursors. Defects in this gene are a cause of the Cincinnati type of acrofacial dysostosis. [provided by RefSeq, May 2016]
GeneCards Summary for POLR1A Gene
POLR1A (RNA Polymerase I Subunit A) is a Protein Coding gene. Diseases associated with POLR1A include Acrofacial Dysostosis, Cincinnati Type and Acrofacial Dysostosis. Among its related pathways are GPCR Pathway and RNA Polymerase I Promoter Escape. GO annotations related to this gene include DNA-directed 5-3 RNA polymerase activity and RNA polymerase I activity.
UniProtKB/Swiss-Prot for POLR1A Gene
DNA-dependent RNA polymerase catalyzes the transcription of DNA into RNA using the four ribonucleoside triphosphates as substrates. Largest and catalytic core component of RNA polymerase I which synthesizes ribosomal RNA precursors. Forms the polymerase active center together with the second largest subunit. A single stranded DNA template strand of the promoter is positioned within the central active site cleft of Pol I. A bridging helix emanates from RPA1 and crosses the cleft near the catalytic site and is thought to promote translocation of Pol I by acting as a ratchet that moves the RNA-DNA hybrid through the active site by switching from straight to bent conformations at each step of nucleotide addition (By similarity).