4ZYM

Structural implications of homo-pyrimidine base pairs on the parallel-stranded d(GAY) motif.

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	DNA (5'-D(*AP*CP*TP*CP*GP*GP*AP*CP*GP*AP*T)-3')	polymer	11	3358.2	4		synthetic construct
2	A, B, C	MAGNESIUM ION	non-polymer		24.3	4	Chemie (MG)
3		water	water		18.0	6	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	13432.8
Non-Polymers*	Number of molecules	4
	Total formula weight	97.2
All*	Total formula weight	13530.1

*Water molecules are not included.