3HCL

Helical superstructures in a DNA oligonucleotide crystal

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A	DNA (5'-D(*CP*GP*AP*TP*AP*T)-3')	polymer	6	1808.2	1
2		water	water		18.0	2	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	1
	Total formula weight	1808.2
All*	Total formula weight	1808.2

*Water molecules are not included.