9I23

Structure of Human helicase RecQ1- 795-2T G-quadruplex - ADP complex

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B (A, B)	ATP-dependent DNA helicase Q1	polymer	531	60417.7	2	UniProt (P46063) Pfam (PF00270) Pfam (PF00271) Pfam (PF16124)	Homo sapiens (human)	DNA 3'-5' helicase Q1,DNA helicase,RecQ-like type 1,RecQ1,DNA-dependent ATPase Q1,RecQ protein-like 1
2	C, D (C, D)	DNA (5'-D(P*GP*GP*GP*TP*GP*GP*GP*TP*GP*GP*GP*TP*GP*GP*GP*T)-3')	polymer	23	7260.6	2		Homo sapiens
3	E, H (A, B)	ZINC ION	non-polymer		65.4	2	Chemie (ZN)
4	F, I (A, B)	ADENOSINE-5'-DIPHOSPHATE	non-polymer		427.2	2	Chemie (ADP)
5	G, J (A, B)	MAGNESIUM ION	non-polymer		24.3	2	Chemie (MG)
6	K, L, M, N (C, D)	POTASSIUM ION	non-polymer		39.1	4	Chemie (K)

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	135356.7
Non-Polymers*	Number of molecules	10
	Total formula weight	1190.2
All*	Total formula weight	136546.9

*Water molecules are not included.