1OZJ

Crystal structure of Smad3-MH1 bound to DNA at 2.4 A resolution

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A (C)	Smad binding element	polymer	15	4553.0	1
2	B (D)	Smad binding element	polymer	15	4624.0	1
3	C, D (A, B)	SMAD 3	polymer	144	16847.8	2	UniProt (P84022) Pfam (PF03165)	Homo sapiens (human)	Mothers against DPP homolog 3, Mad3, hMAD-3, mMad3, JV15-2, hSMAD3
4	E, F (A, B)	ZINC ION	non-polymer		65.4	2	Chemie (ZN)
5	G, H, I, J (C, D, A, B)	water	water		18.0	47	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	42872.6
Non-Polymers*	Number of molecules	2
	Total formula weight	130.8
All*	Total formula weight	43003.4

*Water molecules are not included.