1QP5

BASE-PAIRING SHIFT IN A DODECAMER CONTAINING A (CA)N TRACT

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A (A)	DNA (5'-D(*AP*CP*CP*GP*GP*CP*GP*CP*CP*AP*CP*A)-3')	polymer	12	3617.4	1
2	B (B)	DNA (5'-D(*TP*GP*TP*GP*GP*CP*GP*CP*CP*GP*GP*T)-3')	polymer	12	3710.4	1
3	C, D, E, F, G... (A, B)	MAGNESIUM ION	non-polymer		24.3	8	Chemie (MG)
4	K, L (A, B)	water	water		18.0	107	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	7327.8
Non-Polymers*	Number of molecules	8
	Total formula weight	194.4
All*	Total formula weight	7522.2

*Water molecules are not included.