21ET

1'-sugar-tethered cholesterol-modified siRNA

This is a non-PDB format compatible entry.

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, E... (A, B, C, D, E...)	RNA (5'-R(*GP*GP*AP*CP*UP*CP*GP*AP*GP*UP*CP*CP*(LIG))-3')	polymer	13	4408.1	6		synthetic construct
2	G, H, I (B, C, E)	SODIUM ION	non-polymer		23.0	3	Chemie (NA) PubChem (923)
3	J, K, L, M, N... (A, B, C, D, E...)	water	water		18.0	12	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	6
	Total formula weight	26448.4
Non-Polymers*	Number of molecules	3
	Total formula weight	69.0
All*	Total formula weight	26517.4

*Water molecules are not included.