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Polymerase acidic protein

UniProtKB accession:  Q9Q0U9
Grouped By:  Matching UniProtKB accession
Group Content:  
Polymer Entities matching query 7
Go to UniProtKB:  Q9Q0U9
UniProtKB description:  Plays an essential role in viral RNA transcription and replication by forming the heterotrimeric polymerase complex together with PB1 and PB2 subunits. The complex transcribes viral mRNAs by using a unique mechanism called cap-snatching. It consists in the hijacking and cleavage of host capped pre-mRNAs. These short capped RNAs are then used as primers for viral mRNAs. The PB2 subunit is responsible for the binding of the 5' cap of cellular pre-mRNAs which are subsequently cleaved after 10-13 nucleotides by the PA subunit that carries the endonuclease activity.
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Structure Features
Determination Methodology


Sequence Features
Number of Source Taxonomies


Experimental Features
Experimental Method
Resolution


Organisms
Organism
Taxonomy


Protein Domains
SCOP/SCOPe Domain
CATH Domain
ECOD Domain
PFAM Domain
InterPro Domain


Function
GO Molecular Function
GO Biological Process
GO Cellular Component