2A1S

Crystal structure of native PARN nuclease domain

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B, C, D	Poly(A)-specific ribonuclease PARN	polymer	430	49617.1	4	UniProt (O95453) Pfam (PF04857) In PDB	Homo sapiens (human)	Polyadenylate-specific ribonuclease, Deadenylating nuclease, Deadenylation nuclease, PARN, poly(A) specific nuclease
2		water	water		18.0	239	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	198468.5
All*	Total formula weight	198468.5

*Water molecules are not included.