1Q9L

S25-2 Fab Unliganded 2

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B (B, D)	S25-2 Fab (IgG1k) heavy chain	polymer	222	24111.0	2		Mus musculus (house mouse)
2	C, D (A, C)	S25-2 Fab (IgG1k) light chain	polymer	219	24242.9	2		Mus musculus (house mouse)
3	E, F, H, K, L... (B, D, A, C)	MAGNESIUM ION	non-polymer		24.3	7	Chemie (MG)
4	G, I, J (A, C)	ZINC ION	non-polymer		65.4	3	Chemie (ZN)
5	O, P, Q, R (B, D, A, C)	water	water		18.0	399	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	96707.7
Non-Polymers*	Number of molecules	10
	Total formula weight	366.4
All*	Total formula weight	97074.1

*Water molecules are not included.